CN115160825A - Modified yellow pigment and preparation method and application thereof - Google Patents
Modified yellow pigment and preparation method and application thereof Download PDFInfo
- Publication number
- CN115160825A CN115160825A CN202210992862.1A CN202210992862A CN115160825A CN 115160825 A CN115160825 A CN 115160825A CN 202210992862 A CN202210992862 A CN 202210992862A CN 115160825 A CN115160825 A CN 115160825A
- Authority
- CN
- China
- Prior art keywords
- yellow pigment
- pigment
- modified
- silica sol
- modified yellow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000001052 yellow pigment Substances 0.000 title claims abstract description 82
- 238000002360 preparation method Methods 0.000 title abstract description 39
- 239000000049 pigment Substances 0.000 claims description 55
- 239000002245 particle Substances 0.000 claims description 32
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 28
- 238000000227 grinding Methods 0.000 claims description 28
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 25
- 239000011259 mixed solution Substances 0.000 claims description 23
- RMAQACBXLXPBSY-UHFFFAOYSA-N silicic acid Chemical compound O[Si](O)(O)O RMAQACBXLXPBSY-UHFFFAOYSA-N 0.000 claims description 23
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 claims description 21
- 239000002002 slurry Substances 0.000 claims description 19
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 17
- 239000002270 dispersing agent Substances 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 15
- 239000007787 solid Substances 0.000 claims description 15
- 238000010438 heat treatment Methods 0.000 claims description 14
- 239000000377 silicon dioxide Substances 0.000 claims description 14
- 238000010008 shearing Methods 0.000 claims description 13
- 238000009826 distribution Methods 0.000 claims description 12
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 11
- 238000002156 mixing Methods 0.000 claims description 9
- 239000002253 acid Substances 0.000 claims description 8
- 230000007935 neutral effect Effects 0.000 claims description 8
- 235000012239 silicon dioxide Nutrition 0.000 claims description 7
- 238000001816 cooling Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000000926 separation method Methods 0.000 claims description 6
- 239000011734 sodium Substances 0.000 claims description 6
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 claims description 5
- 238000004519 manufacturing process Methods 0.000 claims description 5
- 229910052708 sodium Inorganic materials 0.000 claims description 5
- 239000012720 thermal barrier coating Substances 0.000 claims description 3
- 238000000576 coating method Methods 0.000 abstract description 29
- 239000011248 coating agent Substances 0.000 abstract description 25
- 230000000694 effects Effects 0.000 abstract description 13
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 abstract description 6
- 239000000047 product Substances 0.000 description 21
- 238000012360 testing method Methods 0.000 description 17
- 239000006185 dispersion Substances 0.000 description 14
- 238000009413 insulation Methods 0.000 description 13
- 230000000052 comparative effect Effects 0.000 description 12
- 239000003973 paint Substances 0.000 description 10
- 238000012986 modification Methods 0.000 description 8
- 230000004048 modification Effects 0.000 description 8
- 238000001723 curing Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 239000000243 solution Substances 0.000 description 5
- 239000002131 composite material Substances 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000012065 filter cake Substances 0.000 description 4
- 238000003756 stirring Methods 0.000 description 4
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N titanium dioxide Inorganic materials O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 239000008367 deionised water Substances 0.000 description 3
- 229910021641 deionized water Inorganic materials 0.000 description 3
- 238000011161 development Methods 0.000 description 3
- 230000018109 developmental process Effects 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 239000011810 insulating material Substances 0.000 description 3
- 238000010998 test method Methods 0.000 description 3
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 2
- HZEWFHLRYVTOIW-UHFFFAOYSA-N [Ti].[Ni] Chemical compound [Ti].[Ni] HZEWFHLRYVTOIW-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 238000004134 energy conservation Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000019612 pigmentation Effects 0.000 description 2
- 239000011164 primary particle Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 239000010936 titanium Substances 0.000 description 2
- 229910052719 titanium Inorganic materials 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 238000005406 washing Methods 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 239000001058 brown pigment Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 238000011156 evaluation Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000012860 organic pigment Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C1/00—Treatment of specific inorganic materials other than fibrous fillers; Preparation of carbon black
- C09C1/0081—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound
- C09C1/0084—Composite particulate pigments or fillers, i.e. containing at least two solid phases, except those consisting of coated particles of one compound containing titanium dioxide
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/006—Combinations of treatments provided for in groups C09C3/04 - C09C3/12
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/041—Grinding
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/04—Physical treatment, e.g. grinding, treatment with ultrasonic vibrations
- C09C3/043—Drying, calcination
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/06—Treatment with inorganic compounds
- C09C3/063—Coating
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09C—TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS, TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES ; PREPARATION OF CARBON BLACK ; PREPARATION OF INORGANIC MATERIALS WHICH ARE NO SINGLE CHEMICAL COMPOUNDS AND WHICH ARE MAINLY USED AS PIGMENTS OR FILLERS
- C09C3/00—Treatment in general of inorganic materials, other than fibrous fillers, to enhance their pigmenting or filling properties
- C09C3/12—Treatment with organosilicon compounds
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/004—Reflecting paints; Signal paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
- C09D7/62—Additives non-macromolecular inorganic modified by treatment with other compounds
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/60—Optical properties, e.g. expressed in CIELAB-values
- C01P2006/62—L* (lightness axis)
-
- C—CHEMISTRY; METALLURGY
- C01—INORGANIC CHEMISTRY
- C01P—INDEXING SCHEME RELATING TO STRUCTURAL AND PHYSICAL ASPECTS OF SOLID INORGANIC COMPOUNDS
- C01P2006/00—Physical properties of inorganic compounds
- C01P2006/90—Other properties not specified above
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Composite Materials (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
- Pigments, Carbon Blacks, Or Wood Stains (AREA)
Abstract
The invention provides a modified yellow pigment, a preparation method and application thereof, and relates to the technical field of reflective heat-insulating coatings. The invention solves the technical problem that the existing reflective heat-insulating coating cannot meet the requirement of the GB/T25261-2018 standard on the sunlight reflectance in the lightness interval (L value is in the range of 70-85) when common inorganic iron oxide yellow is used for toning, achieves the technical effects of improving the near-infrared reflectance of the reflective heat-insulating coating and having excellent outdoor weather resistance and light resistance.
Description
Technical Field
The invention relates to the technical field of reflective heat-insulating coatings, in particular to a modified yellow pigment and a preparation method and application thereof.
Background
The proportion of building energy consumption in the whole energy consumption is generally between 30 and 40 percent, and the building built in China at present generally has lower energy-saving level, so the building energy saving is the subject of sustainable development of China and even the world in a large society.
In recent years, with rapid economic development and continuous urbanization, urban population is concentrated and heat is not easy to diffuse, so that the temperature of the urban area is 3-5 ℃ higher than that of the suburb, which is called as a heat island effect. Solar radiation causes the temperature of the roof and exterior wall surfaces to increase, and the corresponding indoor temperature to increase. The temperature rise reduces the comfort level of the living environment, is not beneficial to the health of the body, and simultaneously increases the power consumption of refrigeration equipment such as an air conditioner and the like. The data show that for each l deg.c rise in temperature, the corresponding power supply increases by 2%, and the energy spent on cooling equipment such as air conditioners, electric fans, air conditioners, etc., exceeds 20% of the total energy consumed nationwide. Along with the development of low-carbon economy, the building energy conservation draws more and more attention of people.
The traditional heat insulating material is mainly used for improving the porosity, increasing the thermal resistance and reducing the heat conductivity coefficient. The fiber heat-insulating material needs to have a thicker coating layer to increase the convective heat transfer and the radiant heat transfer in the use environment; the inorganic heat-insulating material of section class has the disadvantages of many seams, poor waterproofness, short service life and the like. The reflective heat-insulating coating for the building, as a novel energy-saving material, can effectively reflect, obstruct and radiate the energy of sunlight, obviously reduce the temperature of the outer wall, roof and indoor space of the building, reduce the energy consumption of refrigeration equipment such as an air conditioner and the like under the high-temperature condition, improve the living and working environment, save a large amount of energy, and play an active role in the aspects of energy conservation and reasonable utilization, environment improvement, factory safety accident prevention and the like.
At present, most of reflective thermal insulation coatings for buildings at home and abroad are mainly white emulsion paints and lack colors and artistic modeling, and along with the increasing living standard of people, people have more requirements on the colors and the styles of exterior wall coatings, so that the application and the diversification of the colors are indispensable conditions in a reflective thermal insulation coating system. As the reflective thermal insulation coating for buildings is just emerging at present and has few executable standards, JG/T235-2014 and GB/T25261-2018 are taken as main evaluation bases at present; after the inorganic iron oxide yellow paste/toner is used as a coating for color mixing, when the brightness value L is in a range of 70-85, the sunlight reflection ratio can meet the requirement of the standard JG/T235-2014, but cannot meet the requirement of the new national standard GB/T25261-2018 because the common iron oxide yellow pigment does not have the near infrared reflection capability; the organic yellow paste/toner has small average particle size, so that sunlight can directly penetrate through the pigment under the most conditions, and the organic yellow paste/toner does not have a reflection function.
In view of the above, the present invention is particularly proposed.
Disclosure of Invention
It is an object of the present invention to provide a modified yellow pigment having a high near infrared reflectance.
The second purpose of the invention is to provide a preparation method of the modified yellow pigment, which has simple and efficient process.
The invention also aims to provide application of the modified yellow pigment, which has outstanding application effect.
In order to achieve the above purpose of the present invention, the following technical solutions are adopted:
in a first aspect, a modified yellow pigment is a yellow pigment with a silica-coated surface;
the yellow pigment includes at least one of pigment brown 24 and pigment yellow 53.
Further, the particle size distribution D90 of the modified yellow pigment is between 600 and 800nm.
In a second aspect, a method of preparing the modified yellow pigment of any of the above, comprising the steps of:
and treating the yellow pigment by using a silane coupling agent and silica sol to obtain the modified yellow pigment.
Further, the preparation method comprises the following steps:
mixing and dispersing water, a silane coupling agent and the yellow pigment, then adding silica sol, adding acid to adjust the pH value to be neutral, curing, then carrying out solid-liquid separation, and carrying out heat treatment on the obtained solid to obtain the modified yellow pigment.
Further, the preparation method comprises the following steps:
(a) Pre-shearing water, adding a silane coupling agent and the yellow pigment, mixing and dispersing to obtain slurry;
(b) Adding silica sol into the slurry obtained in the step (a), and adding acid to adjust the pH value to be neutral to obtain a mixed solution;
(c) Curing the mixed solution obtained in the step (b), and then carrying out solid-liquid separation to obtain a solid;
(d) And (c) carrying out heat treatment on the solid obtained in the step (c), cooling and then scattering the solid to obtain a scattered product, and grinding the scattered product to obtain the modified yellow pigment.
Further, in the step (a), the mass ratio of water, the silane coupling agent and the yellow pigment is 100:1:10-40 parts of;
preferably, the slurry obtained in step (a) has an average particle size D50 between 300 and 400 nm.
Further, in the step (b), the mass ratio of the silica sol to the silane coupling agent is 40-160:1;
preferably, the silica sol comprises a sodium type silica sol;
preferably, the sodium silica sol has a solids content of 45 to 55%, preferably 50%.
Further, the temperature of the heat treatment in the step (d) is 500-1000 ℃, and the time of the heat treatment is 3-4h.
Further, the grinding in step (d) comprises the steps of:
pre-shearing a mixed solution of alcohol and water, adding a dispersing agent, mixing with the scattered product, dispersing to obtain pre-dispersed product slurry, and then placing the product slurry in a grinding machine to grind until the particle size distribution D90 is 600-800nm to obtain a modified yellow pigment;
preferably, the alcohol comprises propylene glycol;
preferably, the dispersant comprises PL20 dispersant;
preferably, the mass ratio of the mixed solution of alcohol and water, the dispersant and the product after scattering is 20-30:5-10:60-70 parts of;
preferably, the mill comprises a horizontal mill.
In a third aspect, use of a modified yellow pigment of any of the above in a reflective thermal barrier coating.
Compared with the prior art, the invention has at least the following beneficial effects:
the modified yellow pigment provided by the invention is a yellow pigment with a surface coated with silicon dioxide, wherein the yellow pigment comprises at least one of pigment brown 24 and pigment yellow 53. Pigment brown 24 (P.Br.24), also known as red titanium yellow, can be used for the toning of red-phase yellow, because its pigment crystal form is rutile type, so have stronger near-infrared reflecting power; pigment yellow 53 (p.y.53), also known as titanium-nickel yellow, can be used for toning green-phase yellow, and has strong near-infrared reflection capability because the crystal form of the pigment is rutile; the primary particle sizes of the pigment brown 24 and the pigment yellow 53 are small, the particle size of the pigment aggregate after pigmentation is not controllable, and the best reflection efficiency cannot be achieved, and the particle size of the pigment aggregate can be well controlled by coating the surface with silicon dioxide, so that the near infrared reflectance of the formed surface-modified yellow pigment is further improved.
The preparation method of the modified yellow pigment provided by the invention is simple in process and high in efficiency.
The application of the modified yellow pigment provided by the invention can enable the reflective heat-insulating coating to meet the requirement on the sunlight reflectance in GB/T25261-2018 standard, and has an outstanding application effect.
Detailed Description
The technical solutions of the present invention will be described clearly and completely with reference to the following embodiments, and it should be understood that the described embodiments are some, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
According to a first aspect of the present invention, there is provided a modified yellow pigment, which is a silica-coated yellow pigment;
wherein the yellow pigment comprises at least one of pigment brown 24 and pigment yellow 53.
In the invention, the pigment brown 24 (P.Br.24), also called red titanium yellow, can be used for the toning of red yellow, and has stronger near infrared reflection capability because the crystal form of the pigment is rutile; pigment yellow 53 (p.y.53), also known as titanium-nickel yellow, can be used for toning green-phase yellow, and has strong near-infrared reflection capability because the crystal form of the pigment is rutile; the primary particle sizes of the pigment brown 24 and the pigment yellow 53 are small, the particle size of the pigment aggregate after pigmentation is not controllable, and the best reflection efficiency cannot be achieved, and the particle size of the pigment aggregate can be well controlled by coating the surface with silicon dioxide, so that the near infrared reflectance of the formed surface-modified yellow pigment is further improved.
In the present invention, the purpose of the silica coating is to control the particle size of the pigment agglomerates, and the infrared ray can bypass the particles having smaller particles as analyzed from the optical theory, and has the maximum reflectance when the particle size of the particles is about equal to 1/2 of the wavelength of the incident wave.
In a preferred embodiment, the particle size distribution D90 of the modified yellow pigment of the present invention is between 600 and 800nm, for example, 600nm, 650nm, 700nm, 750nm, 800nm, but not limited thereto, and the near infrared reflectance can be further improved.
According to a second aspect of the present invention, there is provided a process for preparing a modified yellow pigment according to any one of the above, comprising the steps of:
and treating the yellow pigment by using a silane coupling agent and silica sol to obtain the modified yellow pigment.
The preparation method of the modified yellow pigment provided by the invention is simple and efficient in process, and can successfully prepare a target product.
In a preferred embodiment, the present invention provides a preparation method comprising the steps of:
mixing and dispersing water, a silane coupling agent and a yellow pigment, then adding silica sol, adding acid to adjust the pH value to be neutral, curing, then carrying out solid-liquid separation, and carrying out heat treatment on the obtained solid to obtain the modified yellow pigment.
The preparation method provided by the invention is simple and efficient in process, and can successfully prepare the target product.
In a preferred embodiment, the present invention provides a preparation method comprising the steps of:
(a) Pre-shearing water, adding a silane coupling agent and a yellow pigment, mixing and dispersing to obtain slurry;
(b) Adding silica sol into the slurry obtained in the step (a), and adding acid to adjust the pH value to be neutral to obtain a mixed solution;
(c) Curing the mixed solution obtained in the step (b), and then carrying out solid-liquid separation to obtain a solid;
(d) And (c) carrying out heat treatment on the solid obtained in the step (c), cooling and then scattering to obtain a scattered product, and grinding to obtain the modified yellow pigment.
In the step (a), the mass ratio of water, the silane coupling agent and the yellow pigment is 100:1:10-40, in a typical but non-limiting mass ratio of, for example, 100:1: 10. 100:1: 15. 100:1: 20. 100, and (2) a step of: 1: 25. 100:1: 30. 100, and (2) a step of: 1: 35. 100:1:40, which is more favorable for the modification effect of the yellow pigments (pigment brown 24 and pigment yellow 53); the average particle diameter D50 of the slurry obtained in step (a) is between 300nm and 400nm, for example, 300nm, 310nm, 320nm, 330nm, 340nm, 350nm, 360nm, 370nm, 380nm, 390nm and 400nm, but not limited thereto, which is more beneficial to the subsequent modification process and improves the modification effect.
In the step (b), the mass ratio of the silica sol to the silane coupling agent is 40-160:1, typically but not limited to, in a mass ratio of, for example, 40: 1. 50: 1. 60: 1. 70: 1. 80: 1. 90: 1. 100, and (2) a step of: 1. 110: 1. 120: 1. 130: 1. 140: 1. 150: 1. 160:1, the modification effect of pigment brown 24 and pigment yellow 53 is improved; wherein, the silica sol includes but is not limited to sodium type silica sol, which is more beneficial to improving the modification effect of pigment brown 24 and pigment yellow 53; the solid content of the sodium-type silica sol is 45 to 55%, and may be, for example, 45%, 46%, 47%, 48%, 49%, 50%, 51%, 52%, 53%, 54%, 55%, but is not limited thereto, and may be more preferably 50%.
In step (c), the aging time is 5-6h, and typical but not limiting times are 5h and 6h, which are more beneficial to achieve the coating of silica and improve the surface modification effect of the pigment.
In the step (d), the temperature of the heat treatment is 500-1000 ℃, the typical but non-limiting temperature is 500 ℃, 550 ℃, 600 ℃, 650 ℃, 700 ℃, 750 ℃, 800 ℃, 850 ℃, 900 ℃, 950 ℃,1000 ℃, the time of the heat treatment is 3-4h, the typical but non-limiting time is 3h, 3.5h, 4h, and the coating of the silicon dioxide is more favorably realized, and the surface modification effect of the pigment is improved.
In a preferred embodiment, the grinding in step (d) comprises the steps of:
the mixed solution of alcohol and water is firstly pre-sheared, then the dispersant and the scattered product are added to be mixed and dispersed to obtain pre-dispersed product slurry, and then the pre-dispersed product slurry is placed in a grinding machine to be ground until the particle size distribution D90 is between 600 and 800nm, such as 600nm, 650nm, 700nm, 750nm and 800nm, but not limited to, the preparation of the modified yellow pigment is obtained.
It is to be understood that the specific form of the modified yellow pigment preparation obtained by grinding and particle size control in the present invention is not particularly limited, and the modified yellow pigment preparation may be, for example, a pigment-form preparation or a slurry-form preparation, but is not limited thereto.
Among them, the mass ratio of alcohol to water in the mixed solution of alcohol and water is not particularly limited, and may preferably be 1:1, but not limited thereto; the alcohol is not particularly limited, and may be, for example, propylene glycol, but is not limited thereto; the dispersant is not particularly limited, and may be, for example, PL20 dispersant, but is not limited thereto.
In a preferred embodiment, the mass ratio of the mixed solution of alcohol and water, the dispersant and the product after being broken up is 20-30:5-10:60-70, typically but not limited to, in a mass ratio of, for example, 20:10: 70. 25:5: 70. 30:5: 65. 30:10:60, the grinding of the subsequent grinder is facilitated, full grinding is realized, the grinding effect is improved, and a high-quality target product is obtained.
In the present invention, the grinding mill used for grinding includes, but is not limited to, a horizontal type grinding mill, and it is more advantageous to enhance the grinding effect to obtain a preparation of the modified yellow pigment having a target particle size.
A typical preparation method of a modified yellow pigment comprises the following steps:
s1, preparing 100 parts of deionized water in advance, pre-shearing by using a high-speed dispersion machine, slowly adding 1 part of silane coupling agent in a starting dispersion state (500-800 r/min), slowly adding 10-40 parts of pigment (pigment brown 24 or pigment yellow 53), and dispersing at 1500-2000r/min until the average particle size D50 is 300-400nm to obtain slurry;
s2, reducing the shearing speed of the high-speed dispersion machine to 500-800r/min, slowly adding 40-160 parts of silica sol, and adding acid while stirring to adjust the pH value to be neutral to obtain a mixed solution;
s3, continuing to stir the mixed solution obtained in the step S2 for 5-6 hours, curing, filtering, and washing with water to obtain a filter cake;
s4: drying the filter cake, heating at 500-1000 deg.C for 3-4 hr, cooling, and dispersing with jet mill to obtain inorganic composite modified pigment with brown pigment 24 or yellow pigment 53 as core and silica coated surface, and grinding;
s5, grinding:
preparing a mixed solution of 10-15 parts of propylene glycol and 10-15 parts of water in advance, pre-shearing by using a high-speed dispersion machine, slowly adding 5-10 parts of a dispersing agent into 20-30 parts of the mixed solution in a starting dispersion state (500-800 r/min), dispersing for 5min at 1000-1500r/min, then slowly adding 60-70 parts of the inorganic composite modified pigment obtained in the step S4, and dispersing for 15min at 3000r/min to obtain a pre-dispersed product slurry;
and (3) feeding the pre-dispersed product slurry into a horizontal grinder for circular grinding, monitoring the particle size condition all the time, and stopping grinding when the particle size distribution D90 is between 600 and 800nm to obtain a preparation of the modified yellow pigment.
The preparation method provided by the invention has simple and efficient process, can successfully prepare the modified yellow pigment preparation which takes the pigment brown 24 or the pigment yellow 53 as the core and is coated with silicon dioxide on the surface, and the obtained product has higher excellent rate and better and stable quality.
According to a third aspect of the present invention, there is provided a use of a preparation of the modified yellow pigment of any one of the above in a reflective thermal barrier coating.
The application of the modified yellow pigment preparation provided by the invention can enable the reflective heat-insulating coating to meet the requirement on the sunlight reflectance in GB/T25261-2018 standard, and has an outstanding application effect.
The invention is further illustrated by the following examples. The materials in the examples are prepared according to known methods or are directly commercially available, unless otherwise specified.
Example 1
Example 1 provides a modified yellow pigment preparation, specifically a modified yellow pigment preparation having pigment brown 24 (p.br.24) as a core and silica coated on the surface, and having a particle size distribution D90 of 600nm to 800nm.
The preparation of the modified yellow pigment of this example, comprising the steps of:
1. preparing 100 parts of deionized water in advance, pre-shearing by using a high-speed dispersion machine, slowly adding 1 part of silane coupling agent (Mei chart 174) under the condition of starting dispersion (500-800 r/min), slowly adding 10-40 parts of pigment brown 24 (P.Br.24), and dispersing at 1500-2000r/min until the average particle size D50 of the slurry is about 300-400 nm;
2. reducing the shearing speed of a dispersion machine to 500-800r/min, slowly adding 40-160 parts of silica sol (Na type, about 50 percent of solid content), adding acid while stirring, and adjusting the pH value to be neutral;
3. continuously stirring for 5-6 hours, curing, filtering, and washing the filtered filter cake with deionized water;
4. drying the filter cake, heating at 500-1000 deg.C for 3-4 hr, cooling, and grinding with air flow mill to obtain inorganic composite modified pigment with pigment brown 24 as core and coated with silicon dioxide;
5. preparing a mixed solution of 10-15 parts of propylene glycol and 10-15 parts of water in advance, pre-shearing by using a high-speed dispersion machine, slowly adding 5-10 parts of PL20 (Craine) dispersing agent into 20-30 parts of the mixed solution in a starting dispersion state (500-800 r/min), dispersing for 5min at 1000-1500r/min, slowly adding 60-70 parts of the inorganic composite modified pigment obtained in the step 4, dispersing for 15min at 3000r/min, then sending into a horizontal grinding machine (relaxation-resistant LabStart) for circulating grinding, monitoring the particle size condition at any time, and stopping grinding when the particle size distribution D90 is about 600-800nm to obtain a preparation of the modified yellow pigment.
Example 2
Example 2 provides a modified yellow pigment preparation, specifically a modified yellow pigment preparation having a pigment yellow 53 (p.y.53) as a core and silica coated on the surface, and having a particle size distribution D90 of 600nm to 800nm.
The preparation of the modified yellow pigment of this example was prepared by the same method as in example 1 except that pigment yellow 53 (p.y.53) was used in place of pigment brown 24 (p.br.24) of example 1, and the remaining steps and parameters were the same as in example 1.
Comparative example 1
A method of preparing a preparation of pigment brown 24, comprising the steps of:
preparing a mixed solution of 10-15 parts of propylene glycol and 10-15 parts of water in advance, pre-shearing by using a high-speed dispersion machine, slowly adding 5-10 parts of PL20 (Craine) dispersing agent into 20-30 parts of the mixed solution in an open dispersion state (500-800 r/min), dispersing for 5min at 1000-1500r/min, then slowly adding 60-70 parts of pigment brown 24 (P.Br.24), dispersing for 15min at 3000r/min, and then sending into a horizontal grinding machine (relaxation-resistant LabStart) for circulating grinding for 60-120min to finally obtain a preparation of the pigment brown 24 with the particle size distribution D90 of 100-200 nm.
Comparative example 2
A method of preparing a preparation of pigment yellow 53, comprising the steps of:
preparing a mixed solution of 10-15 parts of propylene glycol and 10-15 parts of water in advance, pre-shearing by using a high-speed dispersion machine, slowly adding 5-10 parts of PL20 (Craine) dispersing agent into 20-30 parts of the mixed solution in an open dispersion state (500-800 r/min), dispersing for 5min at 1000-1500r/min, then slowly adding 60-70 parts of pigment yellow 53 (P.Y.53) and dispersing for 15min at 3000r/min, and then sending into a horizontal grinding machine (relaxation-resistant LabStart) to circularly grind for 60-120min to finally obtain a preparation of the pigment yellow 53 with the particle size distribution D90 of 100-200 nm.
Comparative example 3
Colanyl Oxide Yellow R132-CN (inorganic common color paste).
Comparative example 4
Colamyl Yellow 3R 100-CN (organic common color paste).
Test example 1
The preparations of the modified yellow pigments provided in example 1 and example 2 and the products provided in comparative examples 1 to 4 were respectively color-mixed with the Asia BE reflective thermal insulation coating \ BGOM 452 \/18L/24 KG \ white to obtain flat-coating finish paint which is respectively marked as test group 1, test group 2 and comparative test groups 1 to 4, and the L value, the solar light reflectance ratio, the near infrared reflectance ratio, the hemispherical emissivity and the thermal insulation temperature difference of the flat-coating finish paint are tested, and the results are shown in Table 1;
wherein, the testing method of the L value is to use a spectrophotometer to test, GB/T3181-2008, and 3.14 is defined;
the testing method of the solar reflectance ratio is carried out according to the specification of 6.4 in JG/T235-2014;
the testing method of the near infrared reflectance is carried out according to the specification of 6.4 in JG/T235-2014;
the testing method of the hemispherical emissivity is carried out according to the specification of 6.5 in JG/T235-2014;
the testing method of the heat insulation temperature difference is carried out according to the method in GB/T25261-2018 appendix B.
TABLE 1
The modified yellow pigment preparations provided in examples 1 and 2 and the products provided in comparative examples 1 to 4 were respectively color-matched with the Asia BE reflective thermal insulation coating \ BGOM 452\18L/24KG \ to obtain flat-coating top coats which were respectively marked as test group 1, test group 2 and comparative test groups 1 to 4, and the L value, solar light reflectance, near-infrared reflectance, hemispherical emissivity and thermal insulation temperature difference were measured, and the specific test methods were the same as above, and the results are shown in Table 2.
TABLE 2
The modified yellow pigment preparations provided in examples 1 and 2 and the products provided in comparative examples 1 to 4 were respectively mixed with a paint for an external wall of a suji painted wall, i.e., 18L/24KG white, to obtain flat-coated finishes, which were respectively identified as test groups 1, 2 and comparative test groups 1 to 4, and tested for L value, solar reflectance, near-infrared reflectance, hemispherical emissivity and thermal insulation temperature difference, the specific test methods are the same as above, and the results are shown in table 3.
TABLE 3
The modified yellow pigment preparations provided in examples 1 and 2 and the products provided in comparative examples 1 to 4 were respectively color-mixed with the paint-D type \18L/24KG \ to obtain flat-coating finish paints, which were respectively identified as test groups 1, 2 and comparative test groups 1 to 4, and the L value, solar reflectance, near-infrared reflectance, hemispherical emissivity and thermal insulation temperature difference were measured, and the specific test methods are the same as above, and the results are shown in Table 4.
TABLE 4
From the data, the reflection performance of the flat paint obtained by using the reflective thermal insulation coating and the modified yellow pigment provided by the embodiment of the invention meets the requirement of GB/T25261-2018; meanwhile, the reflection performance of the flat paint obtained by using the common coating and the modified yellow pigment provided by the embodiment of the invention is clamped at the standard boundary, so that the reflection performance of the common coating is improved to a certain extent; the reflection performance deviation of the flat-coating finish paint is obtained by using the reflective heat-insulating coating and the common inorganic yellow color paste; although the reflection performance of part of the flat-coating finish paint is excellent, the actual reflection performance (heat insulation temperature difference term) is poor because the particle size of the organic pigment is small, sunlight is mostly transmitted, and the excellence of reflection data is mostly caused by the good performance of the reflection heat insulation paint and the good reflection capability of the substrate.
Finally, it should be noted that: the above embodiments are only used to illustrate the technical solution of the present invention, and not to limit the same; while the invention has been described in detail and with reference to the foregoing embodiments, it will be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some or all of the technical features may be equivalently replaced; and these modifications or substitutions do not depart from the spirit of the corresponding technical solutions of the embodiments of the present invention.
Claims (10)
1. A modified yellow pigment is characterized in that the modified yellow pigment is a yellow pigment with a surface coated with silicon dioxide;
the yellow pigment includes at least one of pigment brown 24 and pigment yellow 53.
2. The modified yellow pigment of claim 1, wherein the particle size distribution D90 of the modified yellow pigment is between 600 and 800nm.
3. A method for preparing the modified yellow pigment of claim 1 or 2, comprising the steps of:
and treating the yellow pigment by using a silane coupling agent and silica sol to obtain the modified yellow pigment.
4. The method of manufacturing according to claim 3, comprising the steps of:
mixing and dispersing water, a silane coupling agent and the yellow pigment, then adding silica sol, adding acid to adjust the pH value to be neutral, curing, then carrying out solid-liquid separation, and carrying out heat treatment on the obtained solid to obtain the modified yellow pigment.
5. The method of manufacturing according to claim 4, comprising the steps of:
(a) Pre-shearing water, adding a silane coupling agent and the yellow pigment, mixing and dispersing to obtain slurry;
(b) Adding silica sol into the slurry obtained in the step (a), and adding acid to adjust the pH value to be neutral to obtain a mixed solution;
(c) Curing the mixed solution obtained in the step (b), and then carrying out solid-liquid separation to obtain a solid;
(d) And (c) carrying out heat treatment on the solid obtained in the step (c), cooling and then scattering the solid to obtain a scattered product, and grinding the scattered product to obtain the modified yellow pigment.
6. The production method according to claim 5, wherein in the step (a), the mass ratio of water, the silane coupling agent and the yellow pigment is 100:1:10-40;
preferably, the slurry obtained in step (a) has an average particle size D50 between 300 and 400 nm.
7. The production method according to claim 5, wherein in the step (b), the mass ratio of the silica sol to the silane coupling agent is 40 to 160:1;
preferably, the silica sol comprises a sodium type silica sol;
preferably, the sodium silica sol has a solids content of 45 to 55%, preferably 50%.
8. The method according to any one of claims 5 to 7, wherein the temperature of the heat treatment in the step (d) is 500 to 1000 ℃ and the time of the heat treatment is 3 to 4 hours.
9. The method according to any one of claims 5 to 7, wherein the grinding in step (d) comprises the steps of:
pre-shearing a mixed solution of alcohol and water, adding a dispersing agent, mixing with the scattered product, dispersing to obtain pre-dispersed product slurry, and then placing the product slurry into a grinding machine to be ground until the particle size distribution D90 is 600-800nm to obtain the modified yellow pigment;
preferably, the alcohol comprises propylene glycol;
preferably, the dispersant comprises PL20 dispersant;
preferably, the mass ratio of the mixed solution of alcohol and water, the dispersant and the product after scattering is 20-30:5-10:60-70 parts of;
preferably, the mill comprises a horizontal mill.
10. Use of the modified yellow pigment of claim 1 or 2 in a reflective thermal barrier coating.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210992862.1A CN115160825A (en) | 2022-08-18 | 2022-08-18 | Modified yellow pigment and preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210992862.1A CN115160825A (en) | 2022-08-18 | 2022-08-18 | Modified yellow pigment and preparation method and application thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN115160825A true CN115160825A (en) | 2022-10-11 |
Family
ID=83481782
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210992862.1A Pending CN115160825A (en) | 2022-08-18 | 2022-08-18 | Modified yellow pigment and preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN115160825A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08127732A (en) * | 1994-10-28 | 1996-05-21 | Pola Chem Ind Inc | Organic-inorganic composite pigment and its production |
| JPH1135312A (en) * | 1997-07-17 | 1999-02-09 | Pola Chem Ind Inc | Dye-containing silica |
| CN101833217A (en) * | 2010-04-21 | 2010-09-15 | 天津大学 | Modified yellow electrophoretic particle with shell-core composite structure and preparation method thereof |
| CN101947450A (en) * | 2010-08-30 | 2011-01-19 | 浙江工业大学 | Nanometer titanium dioxide-coated iron oxide yellow composite material and preparation method thereof |
| CN102391679A (en) * | 2011-09-01 | 2012-03-28 | 江苏双乐化工颜料有限公司 | Environment-friendly composite pigment and preparation method thereof |
| CN103013172A (en) * | 2012-12-27 | 2013-04-03 | 天津城市建设学院 | Preparation method of modified pigment yellow 12 |
| CN103525133A (en) * | 2012-07-06 | 2014-01-22 | 广州奥翼电子科技有限公司 | Method for preparing high-dispersity electrophoretic particle |
| CN103540162A (en) * | 2012-07-17 | 2014-01-29 | 广州奥翼电子科技有限公司 | Method for preparing electrophoretic particles by using organic pigment |
| CN103827231A (en) * | 2011-09-16 | 2014-05-28 | 巴斯夫欧洲公司 | Coating system |
| CN104194392A (en) * | 2014-08-18 | 2014-12-10 | 天津城建大学 | Preparation method of inorganic and organic composite yellow pigment |
| CN104194406A (en) * | 2014-09-01 | 2014-12-10 | 江南大学 | Preparation method of nanometer oxide composite pigment |
| CN104212197A (en) * | 2014-08-13 | 2014-12-17 | 浙江理工大学 | Method for preparing amphiphilic modified organic pigment based on discontinuous deposition of silica sol |
| CN104263001A (en) * | 2014-08-13 | 2015-01-07 | 浙江理工大学 | Preparation method of high-weather-resistant hydrophilic organic pigment |
| CN104861742A (en) * | 2015-05-02 | 2015-08-26 | 湖南巨发科技有限公司 | High temperature resistant environment-friendly composite pigment and preparation method thereof |
| CN108148443A (en) * | 2017-12-25 | 2018-06-12 | 江南大学 | Preparation method of aqueous self-dispersion nano organic pigment powder |
| CN109952347A (en) * | 2016-10-24 | 2019-06-28 | 石原产业株式会社 | Composite pigment and preparation method thereof, coating composition containing composite pigment, and coating film |
-
2022
- 2022-08-18 CN CN202210992862.1A patent/CN115160825A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08127732A (en) * | 1994-10-28 | 1996-05-21 | Pola Chem Ind Inc | Organic-inorganic composite pigment and its production |
| JPH1135312A (en) * | 1997-07-17 | 1999-02-09 | Pola Chem Ind Inc | Dye-containing silica |
| CN101833217A (en) * | 2010-04-21 | 2010-09-15 | 天津大学 | Modified yellow electrophoretic particle with shell-core composite structure and preparation method thereof |
| CN101947450A (en) * | 2010-08-30 | 2011-01-19 | 浙江工业大学 | Nanometer titanium dioxide-coated iron oxide yellow composite material and preparation method thereof |
| CN102391679A (en) * | 2011-09-01 | 2012-03-28 | 江苏双乐化工颜料有限公司 | Environment-friendly composite pigment and preparation method thereof |
| CN103827231A (en) * | 2011-09-16 | 2014-05-28 | 巴斯夫欧洲公司 | Coating system |
| CN103525133A (en) * | 2012-07-06 | 2014-01-22 | 广州奥翼电子科技有限公司 | Method for preparing high-dispersity electrophoretic particle |
| CN103540162A (en) * | 2012-07-17 | 2014-01-29 | 广州奥翼电子科技有限公司 | Method for preparing electrophoretic particles by using organic pigment |
| CN103013172A (en) * | 2012-12-27 | 2013-04-03 | 天津城市建设学院 | Preparation method of modified pigment yellow 12 |
| CN104212197A (en) * | 2014-08-13 | 2014-12-17 | 浙江理工大学 | Method for preparing amphiphilic modified organic pigment based on discontinuous deposition of silica sol |
| CN104263001A (en) * | 2014-08-13 | 2015-01-07 | 浙江理工大学 | Preparation method of high-weather-resistant hydrophilic organic pigment |
| CN104194392A (en) * | 2014-08-18 | 2014-12-10 | 天津城建大学 | Preparation method of inorganic and organic composite yellow pigment |
| CN104194406A (en) * | 2014-09-01 | 2014-12-10 | 江南大学 | Preparation method of nanometer oxide composite pigment |
| CN104861742A (en) * | 2015-05-02 | 2015-08-26 | 湖南巨发科技有限公司 | High temperature resistant environment-friendly composite pigment and preparation method thereof |
| CN109952347A (en) * | 2016-10-24 | 2019-06-28 | 石原产业株式会社 | Composite pigment and preparation method thereof, coating composition containing composite pigment, and coating film |
| CN108148443A (en) * | 2017-12-25 | 2018-06-12 | 江南大学 | Preparation method of aqueous self-dispersion nano organic pigment powder |
Non-Patent Citations (2)
| Title |
|---|
| 张天永;刘旭;韩聪;史慧贤;杨秋生;: "包核法对有机颜料改性技术进展", 精细化工, no. 04, pages 313 - 317 * |
| 袁俊杰, 周树学, 游波, 武利民: "纳米二氧化硅包覆颜料黄的研究", 高等学校化学学报, no. 11, pages 1998 - 2001 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102826839B (en) | Green near infrared reflection pigment and preparation method of green near infrared reflection pigment | |
| CN103923506B (en) | A kind of black infrared reflecting paint and preparation method thereof | |
| CN102464924A (en) | Colored reflective heat-insulating coating | |
| CN104119720A (en) | Red pigment capable of reflecting near infrared radiation | |
| CN103183996B (en) | High-effect reflective heat-insulation paint and preparation method thereof | |
| CN101948640A (en) | Dark infrared reflective insulation material and preparation method thereof | |
| CN105368233A (en) | Composite thermal insulation coating and preparation method thereof | |
| CN103923505B (en) | Reddish brown near-infrared reflection pigment and preparation method thereof | |
| CN114316657B (en) | Reflective heat-insulation building coating system | |
| CN104877474A (en) | Nanometer reflective heat-insulation coating for exterior wall and preparation technique thereof | |
| CN110330813A (en) | A kind of colour TiO2Near-infrared reflection pigment and preparation method thereof | |
| CN112441623A (en) | Preparation of high near-infrared reflection color pigment by using modified cobalt blue pigment | |
| CN110878179B (en) | Black heat-reflective pigment and preparation method and application thereof | |
| CN115160825A (en) | Modified yellow pigment and preparation method and application thereof | |
| CN112048193B (en) | A kind of green pigment with low lightness and high near-infrared reflectance and preparation method thereof | |
| CN107556801A (en) | A kind of rust near-infrared high reflection material and preparation method thereof | |
| CN116445008B (en) | Preparation method of near infrared reflective pigment | |
| CN106497199A (en) | A kind of reflective insulation nano modification quartz sand and preparation method thereof | |
| CN115594227B (en) | An inorganic yellow high-entropy pigment with high near-infrared reflection performance and its preparation method | |
| CN111073422A (en) | Water-based reflective heat-insulating coating for buildings and processing method thereof | |
| CN108675349A (en) | A kind of high near-infrared reflection Bi3+Adulterate the preparation method of yttrium acid lanthanum pigment | |
| CN101735723B (en) | Water-based nano transparent glass thermal insulation coating and preparation method thereof | |
| CN115093740A (en) | Infrared reflection microsphere pigment and filler based on transparent glass microspheres and preparation method thereof | |
| CN111073417B (en) | Reflective heat-insulating coating and preparation method thereof | |
| CN113930114A (en) | Reflective heat-insulating coating and preparation method thereof |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20221011 |
|
| RJ01 | Rejection of invention patent application after publication |