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WO2023010764A1 - Diluant respectueux de l'environnement à haut point d'éclair et procédé de préparation associé et son application - Google Patents

Diluant respectueux de l'environnement à haut point d'éclair et procédé de préparation associé et son application Download PDF

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Publication number
WO2023010764A1
WO2023010764A1 PCT/CN2021/139895 CN2021139895W WO2023010764A1 WO 2023010764 A1 WO2023010764 A1 WO 2023010764A1 CN 2021139895 W CN2021139895 W CN 2021139895W WO 2023010764 A1 WO2023010764 A1 WO 2023010764A1
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WO
WIPO (PCT)
Prior art keywords
parts
ether
flash point
thinner
paint
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.)
Ceased
Application number
PCT/CN2021/139895
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English (en)
Chinese (zh)
Inventor
钱金均
胡明
唐帆
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangsu Champion Technology Group Co Ltd
Original Assignee
Jiangsu Champion Technology Group Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Jiangsu Champion Technology Group Co Ltd filed Critical Jiangsu Champion Technology Group Co Ltd
Publication of WO2023010764A1 publication Critical patent/WO2023010764A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • C09D7/20—Diluents or solvents

Definitions

  • the invention relates to the technical field of paint thinners, in particular to a high-flash point environment-friendly thinner and its preparation method and application.
  • Paint thinner is a liquid solvent that can be miscible with resin in order to reduce the viscosity of paint and improve the process performance of paint.
  • paint thinner can make the paint suitable for more painting methods.
  • Existing paint thinners are usually based on benzene-containing solvents such as toluene or xylene.
  • xylene thinners can improve the volatilization performance of paints and enhance cohesiveness and adhesion, benzene substances will volatilize into the air and affect the environment. and damage to the human body. Therefore, the use of environmentally friendly thinners to replace benzene thinners that are more harmful to human body has far-reaching significance, and it is also an important way to achieve energy saving and emission reduction.
  • the prior art provides a series of benzene-free environmentally friendly paint thinners.
  • the raw material of the benzene-free thinner provided by the prior art with the patent application number 201310096797.5 consists of dimethyl carbonate, DBE high boiling point solvent, propylene glycol methyl ether acetic acid Ester, butyl acetate, high-boiling point aromatic hydrocarbon S-150 solvent, although it is a new environment-friendly solvent, the flash point of its raw materials used is very low, and there is a safety problem.
  • the prior art has solved the problem of benzene-containing diluents, but the non-benzene diluents currently provided all have low flash points.
  • the paint thinner not only dilutes the paint and reduces the viscosity of the system, but also further affects the bonding strength between the paint film and the substrate, the leveling of the paint film, and the drying time.
  • improper selection of diluent will reduce the compatibility between the solvent and the resin, and the active components in the coating cannot be uniformly dispersed, resulting in poor coating performance.
  • the object of the present invention is to provide a high-flash point environment-friendly diluent and its preparation method and application, so as to solve the problems of low flash point, poor paint dilution effect and poor compatibility with resins in the environment-friendly paint diluent provided by the prior art.
  • the environment-friendly diluent provided by the invention not only meets the requirements of environmental protection and low VOC emission, but also achieves the effect of high flash point, and has higher safety when the paint thinner is stored and transported as a separate commodity.
  • the invention provides a high-flash point environmentally friendly diluent, which is prepared from raw materials containing the following parts by mass:
  • the above-mentioned high-flash point environment-friendly diluent it is prepared from raw materials comprising the following parts by mass:
  • tripropylene glycol ether 20-25 parts of cyclohexanediol monomethyl ether, 12-15 parts of orthobutyl silicate, 15-20 parts of dipropylene glycol methyl ether, and 11-15 parts of acetate.
  • the acetate is dipropylene glycol methyl ether acetate.
  • the tripropylene glycol ether is one or both of tripropylene glycol methyl ether and tripropylene glycol butyl ether.
  • the present invention also provides a kind of preparation method of high-flash point environment-friendly diluent, comprising the following steps:
  • the stirring rate is 200-500 r/min, and the stirring time is 30-80 min.
  • the invention also provides the application of a high-flash point environment-friendly diluent in diluted paint.
  • the coating includes alkyd coating, polyurethane coating, acrylic coating, epoxy coating, epoxy ester coating, fluorocarbon coating, steel structure fireproof coating, general Floor paint, road marking paint or reflective paint.
  • the diluent composition of the present invention uses propylene glycol ether solvents as the main component, which can replace glycol ether solvents, and has the same performance as the solvent. It can solve the problem of the toxicity of glycol ether solvents. Moreover, propylene glycol ether contains hydroxyl groups, alkyl groups and ether bonds, which can dissolve both hydrophobic compounds and water-soluble compounds. wider.
  • Tripropylene glycol ether used in the present invention cyclohexanediol monomethyl ether, butyl orthosilicate, dipropylene glycol methyl ether, dipropylene glycol methyl ether acetate are all hydrogen bond accepting solvents, and the number of hydrogen bond acceptors is more than that of alcohols , Ketone compounds, among them, tripropylene glycol butyl ether and tripropylene glycol methyl ether have more hydrogen bond acceptors than ethylene glycol ether solvents, and are more likely to form hydrogen bonds with the resin in the coating, avoiding the resin and Hydrogen bonds are formed between resin molecules, which can effectively reduce the viscosity of the system.
  • propylene glycol ether has strong hydrogen bonds, hydrogen bonds will also be formed between its molecules, which increases the boiling point of the diluent, and the flash point also increases.
  • the boiling point of tripropylene glycol ether and butyl orthosilicate of the present invention is about 270°C
  • the boiling point of dipropylene glycol methyl ether and cyclohexanediol monomethyl ether is about 190°C
  • the high boiling point and low boiling point solvents are used in combination.
  • the high boiling point solvent can increase the flash point, and at the same time control the evaporation rate of the coating film, so that the coating film has a better surface effect and high gloss, and avoid the low boiling point components in the thinner
  • cyclohexanediol monomethyl ether can replace glycol ether solvents such as ethylene glycol butyl ether and diethylene glycol methyl ether, as a high boiling point solvent, low toxicity and environmental protection.
  • the diluent of the present invention has the characteristics of fresh and non-pungent smell, no harm to health and safety, and environmental protection.
  • high and low boiling point solvents are compounded and used, and the prepared diluent has a high flash point, and the closed flash point is greater than 68 ° C, which meets the requirements for the identification of non-hazardous chemicals in the "Regulations on the Safety Management of Hazardous Chemicals", and belongs to non-hazardous chemicals. Hazardous Chemicals.
  • the present invention uses a hydrogen bond-accepting solvent to make it easier for the diluent to form a hydrogen bond with the resin in the coating, avoiding the formation of a hydrogen bond between the resin and the resin molecule, effectively reducing the viscosity of the system, and realizing the effect of the diluent on the coating. efficient dilution.
  • the diluent of the present invention has good diluting power and wide diluting range, can dilute conventional paints in this field, and has a fast film-forming speed, and the formed paint film is compact and has high gloss.
  • the invention provides a high-flash point environmental protection diluent, which is prepared from the following raw materials in parts by mass:
  • the above-mentioned high-flash point environment-friendly diluent it is prepared from raw materials comprising the following parts by mass:
  • tripropylene glycol ether 20-25 parts of cyclohexanediol monomethyl ether, 12-15 parts of orthobutyl silicate, 15-20 parts of dipropylene glycol methyl ether, and 11-15 parts of acetate.
  • the above-mentioned high-flash point environmentally friendly diluent it is prepared from raw materials comprising the following parts by mass:
  • the acetate is dipropylene glycol methyl ether acetate.
  • the tripropylene glycol ether is one or both of tripropylene glycol methyl ether and tripropylene glycol butyl ether.
  • the present invention also provides a kind of preparation method of high-flash point environment-friendly diluent, comprising the following steps:
  • the invention also provides the application of a high-flash point environment-friendly diluent in thinning paint.
  • the coating includes alkyd coating, polyurethane coating, acrylic coating, epoxy coating, epoxy ester coating, fluorocarbon coating, steel structure fireproof coating, general floor paint, road marking paint or reflective paint.
  • the present invention provides a high-flash point environment-friendly diluent, which is prepared from the following raw materials in parts by mass: 23 parts of tripropylene glycol butyl ether, 35 parts of tripropylene glycol methyl ether, 25 parts of cyclohexanediol monomethyl ether, orthosilicon 12 parts of butyl ester, 15 parts of dipropylene glycol methyl ether, and 15 parts of dipropylene glycol methyl ether acetate.
  • the preparation method is: mix tripropylene glycol butyl ether, tripropylene glycol methyl ether, cyclohexanediol monomethyl ether, butyl orthosilicate, dipropylene glycol methyl ether, dipropylene glycol methyl ether acetate, and stir at a stirring rate of 200r/min for 80min , standing for 10 minutes, that is, a high-flash point environmentally friendly diluent.
  • the present invention provides a high-flash point environment-friendly diluent, which is prepared from the following raw materials in parts by mass: 40 parts of tripropylene glycol butyl ether, 20 parts of cyclohexanediol monomethyl ether, 10 parts of orthobutyl silicate, 10 parts of propylene glycol methyl ether, 8 parts of dipropylene glycol methyl ether acetate.
  • the preparation method is: mix tripropylene glycol butyl ether, cyclohexanediol monomethyl ether, butyl orthosilicate, dipropylene glycol methyl ether, and dipropylene glycol methyl ether acetate, stir at a stirring rate of 300r/min for 60min, and let stand for 20min. That is, a high-flash point environmentally friendly diluent.
  • the present invention provides a high-flash point environment-friendly diluent, which is prepared from the following raw materials in parts by mass: 65 parts of tripropylene glycol methyl ether, 30 parts of cyclohexanediol monomethyl ether, 10 parts of orthobutyl silicate, 20 parts of propylene glycol methyl ether, 10 parts of dipropylene glycol methyl ether acetate.
  • the preparation method is: mix tripropylene glycol methyl ether, cyclohexanediol monomethyl ether, butyl orthosilicate, dipropylene glycol methyl ether, and dipropylene glycol methyl ether acetate, stir at a stirring rate of 500r/min for 30min, and let stand for 40min. That is, a high-flash point environmentally friendly diluent.
  • the present invention provides a high-flash point environment-friendly diluent, which is prepared from the following raw materials in parts by mass: 55 parts of tripropylene glycol monomethyl ether, 28 parts of cyclohexanediol monomethyl ether, 15 parts of orthobutyl silicate, 12 parts of propylene glycol methyl ether, 8 parts of dipropylene glycol methyl ether acetate.
  • the preparation method is: mix tripropylene glycol methyl ether, cyclohexanediol monomethyl ether, butyl orthosilicate, dipropylene glycol methyl ether, and dipropylene glycol methyl ether acetate, stir at a stirring rate of 500r/min for 30min, and let stand for 20min. That is, a high-flash point environmentally friendly diluent.
  • the present invention provides a high-flash point environment-friendly diluent, which is prepared from the following raw materials in parts by mass: 40 parts of tripropylene glycol butyl ether, 10 parts of tripropylene glycol methyl ether, 30 parts of cyclohexanediol monomethyl ether, orthosilicon 15 parts of butyl ester, 20 parts of dipropylene glycol methyl ether, and 15 parts of dipropylene glycol methyl ether acetate.
  • the preparation method is: mix tripropylene glycol butyl ether, tripropylene glycol methyl ether, cyclohexanediol monomethyl ether, butyl orthosilicate, dipropylene glycol methyl ether, and dipropylene glycol methyl ether acetate, and stir at a stirring rate of 300r/min for 70min , standing for 50 minutes, that is, a high-flash point environmentally friendly diluent.
  • This comparative example provides an environmentally friendly diluent, which is prepared from the following raw materials in parts by mass: 23 parts of tripropylene glycol butyl ether, 35 parts of tripropylene glycol methyl ether, and 15 parts of dipropylene glycol methyl ether.
  • This comparative example provides an environmentally friendly diluent prepared from the following raw materials in parts by mass: 15 parts of dipropylene glycol methyl ether acetate.
  • This comparative example provides an environmentally friendly diluent prepared from the following raw materials in parts by mass: 15 parts of ethyl acetate and 15 parts of butyl acetate.
  • This comparative example provides an environmentally friendly diluent prepared from the following raw materials in parts by mass: 23 parts of tripropylene glycol butyl ether, 35 parts of tripropylene glycol methyl ether, and 25 parts of cyclohexanediol monomethyl ether.
  • This comparative example provides an environmentally friendly diluent prepared from the following raw materials in parts by mass: 12 parts of butyl orthosilicate.
  • the high-flash point environment-friendly diluent made by the embodiments of the present invention 1 ⁇ 5 measures flash point (closed) according to GB/T 261-2008 standard, measures the content of benzene compounds according to GB/T23990-2009 standard, and the results are shown in Table 1 shown.
  • the closed flash point of the environmentally friendly diluent prepared by the present invention is greater than 68°C, which meets the requirements for the identification of non-hazardous chemicals in the "Regulations on the Safety Management of Hazardous Chemicals".
  • Benzene compounds are produced, which are environmentally friendly and benzene-free diluents.
  • Example 1 of the present invention Use the high-flash-point environment-friendly diluent prepared in Example 1 of the present invention to dilute alkyd coatings, polyurethane coatings, acrylic coatings, epoxy coatings, and fluorocarbon coatings respectively, and use the diluents of Comparative Examples 1 to 5 and the special coatings for the above coatings.
  • the diluent is used as a comparison.
  • the amount of the above diluent is 20% of the paint.
  • Table 2-5 shows the drying time (h), gloss (°) and appearance results after standing at room temperature for 24 hours.
  • the diluent of the present invention has a lower viscosity after diluting the paint than the diluent of the comparative example, and at the same time has a better dilution effect than the special diluent for paint. It shows that the dilution effect of the composite component of the present invention is better than the dilution performance of individual components or some components.
  • Example 1 of the present invention It can be seen from Table 3 that the surface-drying time of the paint diluted in Example 1 of the present invention is about 3 hours, and the hard drying can be achieved in 20-22 hours. Thinner, indicating that the multi-component compounding of the present invention can accelerate the drying of the paint film.
  • the paint film gloss obtained by the coating using the diluent of Example 1 is higher, and the gloss of the paint film formed with respect to the special thinner for paint has increased by about 10°, and a certain component in Example 1 is used alone Or when certain components are used as diluents (Comparative Examples 1-5), the gloss of the paint film is relatively poor, which shows that the compound diluent of multiple components of the present invention can significantly improve the gloss of the paint film.
  • the multi-component compounded diluent of the present invention reduces the viscosity of the paint, shortens the drying time, and the formed paint film has good gloss, smooth surface, and no cracking, and is applicable to Conventional coatings in this field.

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  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Wood Science & Technology (AREA)
  • Organic Chemistry (AREA)
  • Paints Or Removers (AREA)

Abstract

La présente invention concerne le domaine technique des diluants pour peinture et porte sur un diluant respectueux de l'environnement, à haut point d'éclair, et sur un procédé de préparation associé et une application de ce dernier. Le diluant pour peinture de la présente invention est préparé à partir des matières premières suivantes, en parties en masse : de 40 à 65 parties d'éther de tripropylèneglycol, de 20 à 30 parties de l'éther monométhylique du cyclohexanediol, de 10 à 20 parties d'orthosilicate de tétrabutyle, de 5 à 25 parties de l'éther monométhylique du dipropylèneglycol et de 8 à 15 parties d'un ester de l'acide acétique. Selon la présente invention, un solvant accepteur de liaison hydrogène est utilisé pour faciliter la formation, par un diluant, d'une liaison hydrogène avec une résine dans une peinture, ce qui évite la formation d'une liaison hydrogène entre une résine et une molécule de résine, le diluant assure sur la peinture un effet efficace de dilution, le diluant préparé présente un point d'éclair en vase clos élevé, supérieur à 68 °C, et le diluant est un produit chimique non dangereux. Le diluant présente une odeur fraîche et non piquante, il est sain, sûr, sans danger, vert, respectueux de l'environnement, présente un bon pouvoir diluant, présente une large plage de dilution, est susceptible de diluer une peinture classique sur site, sa vitesse de formation du feuil est grande, et il est compact dans un feuil de peinture.
PCT/CN2021/139895 2021-08-05 2021-12-21 Diluant respectueux de l'environnement à haut point d'éclair et procédé de préparation associé et son application Ceased WO2023010764A1 (fr)

Applications Claiming Priority (2)

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CN202110897848.9 2021-08-05
CN202110897848.9A CN113416444A (zh) 2021-08-05 2021-08-05 一种高闪点环保稀释剂及其制备方法和应用

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Publication number Priority date Publication date Assignee Title
CN113416444A (zh) * 2021-08-05 2021-09-21 江苏冠军科技集团股份有限公司 一种高闪点环保稀释剂及其制备方法和应用

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WO1995031510A2 (fr) * 1994-05-12 1995-11-23 The Dow Chemical Company Composition de revetement contenant un solvant de support et procede ameliorant les caracteristiques d'un revetement organique
CN108017948A (zh) * 2018-01-15 2018-05-11 韩立志 一种多用途油漆稀释剂及其制备工艺
CN110317298A (zh) * 2019-05-31 2019-10-11 深圳市嘉卓成科技发展有限公司 用于pp塑料涂装的水性氯化聚丙烯改性丙烯酸树脂及制备方法、涂料及涂料制备方法
CN110951311A (zh) * 2019-12-11 2020-04-03 安庆市鑫祥瑞环保科技有限公司 一种高效环保型油漆稀释剂及其制备方法
CN113416444A (zh) * 2021-08-05 2021-09-21 江苏冠军科技集团股份有限公司 一种高闪点环保稀释剂及其制备方法和应用

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CN101429409A (zh) * 2008-12-18 2009-05-13 复旦大学 一种环保型电工钢纳米涂层材料及其制备方法和应用
CN109266156B (zh) * 2018-08-28 2021-04-27 雅图高新材料股份有限公司 一种水性底面合一漆及其制备方法
CN111995902A (zh) * 2020-09-09 2020-11-27 湖南衡义材料科技有限公司 一种溶剂型钢化玻璃油墨稀释剂及其制备方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1995031510A2 (fr) * 1994-05-12 1995-11-23 The Dow Chemical Company Composition de revetement contenant un solvant de support et procede ameliorant les caracteristiques d'un revetement organique
CN108017948A (zh) * 2018-01-15 2018-05-11 韩立志 一种多用途油漆稀释剂及其制备工艺
CN110317298A (zh) * 2019-05-31 2019-10-11 深圳市嘉卓成科技发展有限公司 用于pp塑料涂装的水性氯化聚丙烯改性丙烯酸树脂及制备方法、涂料及涂料制备方法
CN110951311A (zh) * 2019-12-11 2020-04-03 安庆市鑫祥瑞环保科技有限公司 一种高效环保型油漆稀释剂及其制备方法
CN113416444A (zh) * 2021-08-05 2021-09-21 江苏冠军科技集团股份有限公司 一种高闪点环保稀释剂及其制备方法和应用

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CN113416444A (zh) 2021-09-21

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