CN108484972A - A kind of preparation method of the fire-retardant silicon dioxide composite material of electric wire - Google Patents
A kind of preparation method of the fire-retardant silicon dioxide composite material of electric wire Download PDFInfo
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- CN108484972A CN108484972A CN201810521720.0A CN201810521720A CN108484972A CN 108484972 A CN108484972 A CN 108484972A CN 201810521720 A CN201810521720 A CN 201810521720A CN 108484972 A CN108484972 A CN 108484972A
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- electric wire
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- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 title claims abstract description 69
- 239000002131 composite material Substances 0.000 title claims abstract description 36
- 239000000377 silicon dioxide Substances 0.000 title claims abstract description 36
- 239000003063 flame retardant Substances 0.000 title claims abstract description 35
- 235000012239 silicon dioxide Nutrition 0.000 title claims abstract description 28
- 238000002360 preparation method Methods 0.000 title claims abstract description 15
- 238000006243 chemical reaction Methods 0.000 claims abstract description 69
- CSNNHWWHGAXBCP-UHFFFAOYSA-L Magnesium sulfate Chemical compound [Mg+2].[O-][S+2]([O-])([O-])[O-] CSNNHWWHGAXBCP-UHFFFAOYSA-L 0.000 claims abstract description 62
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 claims abstract description 49
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 45
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims abstract description 44
- 235000019353 potassium silicate Nutrition 0.000 claims abstract description 40
- DIZPMCHEQGEION-UHFFFAOYSA-H aluminium sulfate (anhydrous) Chemical compound [Al+3].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O DIZPMCHEQGEION-UHFFFAOYSA-H 0.000 claims abstract description 35
- 229910052943 magnesium sulfate Inorganic materials 0.000 claims abstract description 31
- 235000019341 magnesium sulphate Nutrition 0.000 claims abstract description 31
- 238000003756 stirring Methods 0.000 claims abstract description 28
- 239000000203 mixture Substances 0.000 claims abstract description 21
- 239000007787 solid Substances 0.000 claims abstract description 21
- 239000002253 acid Substances 0.000 claims abstract description 20
- 239000002202 Polyethylene glycol Substances 0.000 claims abstract description 13
- 229920001223 polyethylene glycol Polymers 0.000 claims abstract description 13
- 238000005406 washing Methods 0.000 claims abstract description 9
- 238000010438 heat treatment Methods 0.000 claims abstract description 4
- 239000000243 solution Substances 0.000 claims description 70
- 238000010790 dilution Methods 0.000 claims description 15
- 239000012895 dilution Substances 0.000 claims description 15
- 238000005507 spraying Methods 0.000 claims description 9
- 239000002002 slurry Substances 0.000 claims description 8
- 230000032683 aging Effects 0.000 claims description 6
- 238000010792 warming Methods 0.000 claims description 6
- 238000001694 spray drying Methods 0.000 claims description 5
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 3
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 3
- 239000011777 magnesium Substances 0.000 claims description 3
- 229910052749 magnesium Inorganic materials 0.000 claims description 3
- 239000011593 sulfur Substances 0.000 claims description 3
- 229910052717 sulfur Inorganic materials 0.000 claims description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims description 2
- ZGBSOTLWHZQNLH-UHFFFAOYSA-N [Mg].S(O)(O)(=O)=O Chemical compound [Mg].S(O)(O)(=O)=O ZGBSOTLWHZQNLH-UHFFFAOYSA-N 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 8
- VTHJTEIRLNZDEV-UHFFFAOYSA-L magnesium dihydroxide Chemical compound [OH-].[OH-].[Mg+2] VTHJTEIRLNZDEV-UHFFFAOYSA-L 0.000 abstract description 6
- 239000000347 magnesium hydroxide Substances 0.000 abstract description 6
- 229910001862 magnesium hydroxide Inorganic materials 0.000 abstract description 6
- 239000002105 nanoparticle Substances 0.000 abstract description 6
- 239000002210 silicon-based material Substances 0.000 abstract description 6
- 239000002994 raw material Substances 0.000 abstract description 5
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 238000001035 drying Methods 0.000 abstract description 2
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 8
- 239000011521 glass Substances 0.000 description 6
- 229910052681 coesite Inorganic materials 0.000 description 5
- 229910052906 cristobalite Inorganic materials 0.000 description 5
- 229910052682 stishovite Inorganic materials 0.000 description 5
- 229910052905 tridymite Inorganic materials 0.000 description 5
- 239000004115 Sodium Silicate Substances 0.000 description 4
- 210000003298 dental enamel Anatomy 0.000 description 4
- 238000007602 hot air drying Methods 0.000 description 4
- 239000003595 mist Substances 0.000 description 4
- 229910052911 sodium silicate Inorganic materials 0.000 description 4
- 238000003860 storage Methods 0.000 description 4
- 238000012360 testing method Methods 0.000 description 4
- 230000004888 barrier function Effects 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 238000004079 fireproofing Methods 0.000 description 3
- 239000003112 inhibitor Substances 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- 229920002379 silicone rubber Polymers 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 231100000252 nontoxic Toxicity 0.000 description 2
- 230000003000 nontoxic effect Effects 0.000 description 2
- 230000000704 physical effect Effects 0.000 description 2
- 229920000260 silastic Polymers 0.000 description 2
- 238000003786 synthesis reaction Methods 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- MKYBYDHXWVHEJW-UHFFFAOYSA-N N-[1-oxo-1-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)propan-2-yl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(C(C)NC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 MKYBYDHXWVHEJW-UHFFFAOYSA-N 0.000 description 1
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 1
- 238000012644 addition polymerization Methods 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 230000000996 additive effect Effects 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 235000019504 cigarettes Nutrition 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010292 electrical insulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000036314 physical performance Effects 0.000 description 1
- 239000002574 poison Substances 0.000 description 1
- 231100000614 poison Toxicity 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000003014 reinforcing effect Effects 0.000 description 1
- 239000000523 sample Substances 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 239000010703 silicon Substances 0.000 description 1
- 239000004945 silicone rubber Substances 0.000 description 1
- 239000000779 smoke Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000009967 tasteless effect Effects 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
Classifications
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/34—Silicon-containing compounds
- C08K3/36—Silica
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L71/00—Compositions of polyethers obtained by reactions forming an ether link in the main chain; Compositions of derivatives of such polymers
- C08L71/02—Polyalkylene oxides
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L83/00—Compositions of macromolecular compounds obtained by reactions forming in the main chain of the macromolecule a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon only; Compositions of derivatives of such polymers
- C08L83/04—Polysiloxanes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/18—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances
- H01B3/30—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes
- H01B3/46—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties mainly consisting of organic substances plastics; resins; waxes silicones
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2217—Oxides; Hydroxides of metals of magnesium
- C08K2003/2224—Magnesium hydroxide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/20—Oxides; Hydroxides
- C08K3/22—Oxides; Hydroxides of metals
- C08K2003/2227—Oxides; Hydroxides of metals of aluminium
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2201/00—Properties
- C08L2201/02—Flame or fire retardant/resistant
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Silicon Compounds (AREA)
Abstract
The present invention relates to electric wire and cable material technical fields, more particularly to a kind of electric wire preparation method of fire-retardant silicon dioxide composite material, the polyethylene glycol solid stirring and dissolving for accounting for 0.1 0.67wt% of bottom water is added after bottom water heating, add water glass solution stirring, it adjusts pH and obtains reaction solution for 9 10.6, it is 3.5 5m that flow is controlled in reaction solution3/ h is separately added into dilute sulfuric acid, water glass solution and acid magnesium sulfate and aluminum sulfate mixture solution is stirred to react, and it is 60 90min to be continuously added into the time, and it is 35 to obtain reaction paste to add dilute sulfuric acid and be acidified to pH；By reaction paste washing, drying and crushing.The beneficial effects of the present invention are：It is that raw material synthesizes nano-sized magnesium hydroxide and nano-aluminum hydroxide dioxide composite silicon materials with water glass solution by certain proportioning hybrid reaction by selecting magnesium sulfate and aluminum sulfate, and in the reaction by adding polyethylene glycol, silicon dioxide composite material obtained has good dispersibility, high activity, high-specific surface area and good flame retardant effect.
Description
Technical field
The present invention relates to electric wire and cable material technical fields, and in particular to a kind of electric wire is compound with fire-retardant silica
The preparation method of material.
Background technology
Wires and cables industry is the second largest industry that China is only second to automobile industry, product variety Service Efficiency and domestic market
Occupation rate is more than 90%.Worldwide, the Chinese electric wire gross output value has been more than the U.S., becomes the first big electricity in the world
Line cable producing country.For silicone rubber for cable as a kind of common cable kind, it is -80~180 DEG C to allow operating temperature for a long time,
With very high-fire resistance, excellent cold resistance and excellent electrical insulation capability, even if when temperature and frequency change or by the time of tide
It is still more stable, while also there is superior Inverter fed motor and arc resistance, good mildew resistance, thermal conductivity are tasteless, nontoxic etc.
Feature.But silicon rubber is that there are fire resistances is poor for high molecular material, and burning is generated when electric wire uses, easily causes fire.It is right
The common method of anti-flammability for improving this kind of electric wire is that fire retardant is added, and there are smoke amounts that big, release has for organic fire-retardant
The shortcomings that poison and corrosive gas, inorganic combustion inhibitor has many advantages, such as nontoxic, low cigarette, stabilization, but there is also some disadvantages, nothings
Machine fire retardant additive amount great talent has the particle of flame retardant effect and inorganic combustion inhibitor big, bad dispersibility, seriously affects silicon rubber electricity
The processing performance and physical property of line cable.
Therefore, it is necessary to do further improvement to inorganic combustion inhibitor could preferably be used as the fire proofing of electric wire.
Invention content
The technical problem to be solved by the present invention is to：A kind of electric wire with good dispersion and flame retardant effect is provided
With the preparation method of fire-retardant silicon dioxide composite material.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention is：A kind of fire-retardant titanium dioxide of electric wire
The preparation method of silicon composite, includes the following steps：
The polyethylene glycol solid stirring and dissolving for accounting for bottom water 0.1-0.67wt% is added after bottom water heating, it is molten to add waterglass
Liquid stirs evenly, and it is that 9-10.6 obtains reaction solution to adjust pH, and it is 3.5-5m that flow is controlled in reaction solution3/ h is separately added into 15-
30wt% dilution heat of sulfuric acid, water glass solution and acid magnesium sulfate and aluminum sulfate mixture solution are stirred to react, when being continuously added into
Between be 60-90min, add dilution heat of sulfuric acid be acidified to pH be 3-5 obtain reaction paste；
Magnesium sulfate concentration is 4-14wt% in the wherein described sour sulfur acid magnesium and aluminum sulfate mixture solution, and aluminum sulfate is a concentration of
4-14wt%, SiO in the water glass solution2Content is 15-25wt%；
Water washing, re-dry is added to crush to obtain electric wire fire-retardant silicon dioxide composite material the reaction paste.
The beneficial effects of the present invention are：It is that raw material is pressed centainly with water glass solution by selecting magnesium sulfate and aluminum sulfate
Hybrid reaction synthesis nano-sized magnesium hydroxide and nano-aluminum hydroxide dioxide composite silicon materials are matched, and pass through addition in the reaction
There is good dispersibility, high activity, high-specific surface area to be used as fire-retardant material for polyethylene glycol, silicon dioxide composite material obtained
Heat can be quickly absorbed when material reduces the temperature on the object surface that catches fire, while making in combustible surface formation protective film barrier flame
It stops burning.
Specific implementation mode
To explain the technical content, the achieved purpose and the effect of the present invention in detail, it is explained below in conjunction with embodiment.
The design of most critical of the present invention is：It is that raw material is pressed centainly with water glass solution by selecting magnesium sulfate and aluminum sulfate
Proportioning hybrid reaction synthesis nano-sized magnesium hydroxide and nano-aluminum hydroxide dioxide composite silicon materials, and in the reaction by adding
Addition polymerization ethylene glycol improves the dispersibility and flame retardant effect of dioxide composite silicon materials.
The present invention provides a kind of electric wire preparation method of fire-retardant silicon dioxide composite material, includes the following steps：
The polyethylene glycol solid stirring and dissolving for accounting for bottom water 0.1-0.67wt% is added after bottom water heating, it is molten to add waterglass
Liquid stirs evenly, and it is that 9-10.6 obtains reaction solution to adjust pH, and it is 3.5-5m that flow is controlled in reaction solution3/ h is separately added into 15-
30wt% dilution heat of sulfuric acid, water glass solution and acid magnesium sulfate and aluminum sulfate mixture solution are stirred to react, when being continuously added into
Between be 60-90min, add dilution heat of sulfuric acid be acidified to pH be 3-5 obtain reaction paste；
Magnesium sulfate concentration is 4-14wt% in the wherein described sour sulfur acid magnesium and aluminum sulfate mixture solution, and aluminum sulfate is a concentration of
4-14wt%, SiO in the water glass solution2Content is 15-25wt%；
Water washing, re-dry is added to crush to obtain electric wire fire-retardant silicon dioxide composite material the reaction paste.
As can be seen from the above description, the beneficial effects of the present invention are：It is raw material and water by selecting magnesium sulfate and aluminum sulfate
Glass solution synthesizes nano-sized magnesium hydroxide and nano-aluminum hydroxide dioxide composite silicon materials by certain proportioning hybrid reaction, and
In the reaction by adding polyethylene glycol, silicon dioxide composite material obtained has good dispersibility, high activity, Gao Bibiao
Area, heat can be quickly absorbed when as fire proofing reduces the temperature on the object surface that catches fire, while being formed in combustible surface
Protective film barrier flame makes it stop burning.
Further, in the acid magnesium sulfate and aluminum sulfate mixture solution dilute sulfuric acid a concentration of 6-10wt%.
Further, the water glass solution is by selecting modulus to be made for 2.5-3.6 solid water glass.
Seen from the above description, it is made by solid water glass and contains SiO2Sol form solution.
Further, the mass fraction that the polyethylene glycol solid of the addition accounts for bottom water is 0.4-0.67%.
Seen from the above description, point of nano-sized magnesium hydroxide and nano-aluminum hydroxide can be improved by the way that polyethylene glycol is added
Property, compatibility are dissipated, helps to improve silicon dioxide composite material dispersibility and physics reinforcing property.
Further, the said wires cable preparation method of fire-retardant silicon dioxide composite material, includes the following steps：
Step 1：Prepare a concentration of 6-10wt%, magnesium sulfate concentration 4-14wt%, a concentration of 4- of aluminum sulfate of dilute sulfuric acid
The acid magnesium sulfate and aluminum sulfate mixture solution of 14wt%；
Step 2：It is to be passed through steam in 2.5-3.6 solid water glass addition roller rotary spherical digester and be forced into select modulus
0.6MPa, pressurize 2 hours, adds water that SiO is made2Content is the water glass solution of 15-25wt%；
Step 3：Bottom water is first added in a kettle and is warming up to 80-95 DEG C, is added and accounts for the poly- of bottom water 0.1-0.67wt%
Ethylene glycol solid stirring and dissolving, adds water glass solution and stirs evenly, and it is that 9-10.6 obtains reaction solution to adjust pH, and reaction is opened
Begin, it is 3.5-5m that flow is controlled in reaction solution3/ h is separately added into 15-30wt% dilution heat of sulfuric acid, water glass solution and acid
Property magnesium sulfate and aluminum sulfate mixture solution be stirred to react, be continuously added into the time be 60-90min, controlling reaction temperature 80-95
DEG C, it is 3-5 to add the dilution heat of sulfuric acid that mass fraction is 22% and adjust pH, and aging 30min obtains reaction paste；
Step 4：It is that spraying slurry is made in 500-800 μ S/cm by the conductivity that the reaction paste adds water washing to drainage,
Powdery product is made by spray drying device in the spraying slurry, then the powdery product is crushed into control grain size
D50 is 7.5-8.5 μm and obtains the fire-retardant silicon dioxide composite material of electric wire.
Embodiment 1：
It is 10m in volume3Add 2m in enamel reaction vessel31000L 30wt% dilute sulfuric acids are added in water, open stirring and first add
Enter 200kg magnesium sulfate and 200kg aluminum sulfate, acid magnesium sulfate and aluminum sulfate mixture solution is made in stirring 30min.Selected high-quality food
Grade solid water glass modulus is 2.5, puts into roller rotary spherical digester the steam being passed through by accurate filter, is forced into 0.6MPa,
Pressurize obtains concentrated sodium silicate for 2 hours and adds water, is configured to SiO2Content is the water glass solution of 18.0wt%, and storage is spare.
It is 60m in volume3In reaction kettle, 15m is first added3Water is passed through steam and is warming up to 80 DEG C, 15kg polyethylene glycol is added
Solid stirring and dissolving adds 1m3Water glass solution stir evenly, it is 9 to obtain reaction solution to adjust pH value.Reaction starts, anti-
It is 4.0m to answer and control flow in liquid respectively3/h、5.0m3/ h and 5.0m3/ h be added 15wt% dilution heat of sulfuric acid, water glass solution with
And acid magnesium sulfate and aluminum sulfate mixture solution, it is 60min to be continuously added into the time, and 80 DEG C of controlling reaction temperature adds
It is 3 that 22wt% dilute sulfuric acids, which are acidified to pH value, and aging 30min obtains reaction paste.Reaction paste is originally washed with filtered
It washs, washs to the 500 μ S/cm of conductivity of drainage, water is filtered, spraying slurry is made, pass through the high speed rotation of spray drying device
The pulp centrifuged mist droplet that is atomized into is recycled hot air drying by atomizing disk, and powdery product is made, controls grain size
D50The powdery product is crushed to obtain electric wire with fire-retardant silicon dioxide composite material for 7.5 μm.
Embodiment 2：
It is 10m in volume3Add 3m in enamel reaction vessel31000L 30wt% dilute sulfuric acids are added in water, open stirring and first add
Enter 300kg magnesium sulfate and 300kg aluminum sulfate, acid magnesium sulfate and aluminum sulfate mixture solution is made in stirring 30min.Selected high-quality food
Grade solid water glass modulus is 3.4, puts into roller rotary spherical digester the steam being passed through by accurate filter, is forced into 0.6MPa,
Pressurize obtains concentrated sodium silicate for 2 hours and adds the water glass solution that water is configured to SiO2 contents as 25.0wt%, and storage is spare.
It is 60m in volume3In reaction kettle, 20m is first added3Water is passed through steam and is warming up to 90 DEG C, 80kg polyethylene glycol is added
Solid stirring and dissolving adds 1.2m3Water glass solution stir evenly, it is 10.0 to obtain reaction solution to adjust pH value.Reaction is opened
Begin, it is 3.5m to control flow respectively in reaction solution3/h、4.0m3/ h and 4.5m325wt% dilution heat of sulfuric acid, waterglass is added in/h
Solution and acid magnesium sulfate and aluminum sulfate mixture solution are stirred to react, and it is 80min, controlling reaction temperature 90 to be continuously added into the time
DEG C, it is 4.0 to add 22wt% dilute sulfuric acids and be acidified to pH value, and aging 30min obtains reaction paste.After reaction paste is filtered
Originally water washing, wash to drainage 800 μ S/cm of conductivity, by water filter be made spraying slurry, pass through spray drying device
High speed rotation atomizing disk the pulp centrifuged mist droplet that is atomized into is recycled hot air drying, powdered production is made
Product, control grain size D50The powdery product is crushed to obtain electric wire with fire-retardant silica composite wood for 8.0 μm
Material.
Embodiment 3：
It is 10m in volume3Add 4m in enamel reaction vessel31000L 30wt% dilute sulfuric acids are added in water, open stirring and first add
Enter 400kg magnesium sulfate and 400kg aluminum sulfate, acid magnesium sulfate and aluminum sulfate mixture solution is made in stirring 30min.Selected high-quality food
Grade solid water glass modulus is 3.0, puts into roller rotary spherical digester the steam being passed through by accurate filter, is forced into 0.6MPa,
Pressurize obtains concentrated sodium silicate for 2 hours and adds the water glass solution that water is configured to SiO2 contents as 17.5wt%, and storage is spare.
It is 60m in volume3In reaction kettle, 15m is first added3Water is passed through steam and is warming up to 90 DEG C, adds the poly- second of 100.5kg
Glycol solid stirring and dissolving adds 1.0m3Water glass solution stir evenly, it is 10.6 to obtain reaction solution to adjust pH value.Reaction
Start, it is 4.5m to control flow respectively in reaction solution3/h、5.0m3/ h and 3.5m322wt% dilution heat of sulfuric acid, water glass is added in/h
Glass solution and acid magnesium sulfate and aluminum sulfate mixture solution are stirred to react, and it is 85min, controlling reaction temperature to be continuously added into the time
It it is 90 DEG C, it is 3.8 to add 22wt% dilution heat of sulfuric acid and be acidified to pH value, and aging 30min obtains reaction paste.By reaction paste
It with filtered originally water washing, washs to the 700 μ S/cm of conductivity of drainage, water is filtered, spraying slurry is made, pass through spraying
The pulp centrifuged mist droplet that is atomized into is recycled hot air drying by the high speed rotation atomizing disk of drying equipment, and powder is made
The product of shape will control grain size D50Crush to obtain electric wire with fire-retardant silica for 8.5 μm of powdery products
Composite material.
Embodiment 4：
It is 10m in volume3Add 3m in enamel reaction vessel31000L 30wt% dilute sulfuric acids are added in water, open stirring and first add
Enter 200kg magnesium sulfate and 200kg aluminum sulfate, acid magnesium sulfate and aluminum sulfate mixture solution is made in stirring 30min.Selected high-quality food
Grade solid water glass modulus is 3.6, puts into roller rotary spherical digester the steam being passed through by accurate filter, is forced into 0.6MPa,
Pressurize 2 hours concentrated sodium silicate adds water and is configured to SiO2Content is the water glass solution of 15wt%, and storage is spare.
It is 60m in volume3In reaction kettle, 20m is first added3Water is passed through steam and is warming up to 95 DEG C, adds the poly- second of 60kg two
Alcohol solid stirring and dissolving adds 1.0m3Water glass solution stir evenly, it is 10.6 to obtain reaction solution to adjust pH value.Reaction is opened
Begin, it is 5.0m to control flow respectively in reaction solution3/h、3.5m3/ h and 4.0m330wt% dilution heat of sulfuric acid, waterglass is added in/h
Solution and acid magnesium sulfate and aluminum sulfate mixture solution are stirred to react, and it is 90min to be continuously added into the time, and controlling reaction temperature is
95 DEG C, it is 4.5 to add 22wt% dilute sulfuric acids and be acidified to pH value, and aging 30min obtains reaction paste.Reaction paste is filtered
Originally water washing afterwards is washed to the 600 μ S/cm of conductivity of drainage, water is filtered, spraying slurry is made, set by spray drying
The pulp centrifuged mist droplet that is atomized into is recycled hot air drying by standby high speed rotation atomizing disk, and powdered production is made
Product, control grain size D50The powdery product is crushed to obtain electric wire with fire-retardant silica composite wood for 8.3 μm
Material.
Experiment test：
The electric wire that Example 1-4 is obtained respectively is respectively labeled as Y1, Y2, Y3 with fire-retardant silicon dioxide composite material
And Y4, the fire-retardant silica of electric wire that control sample is conventional is separately taken, D0 is labeled as, respectively to above-mentioned 5 groups of samples
Specific surface area, oil factor and each group sample be processed into the related physical performance of silastic product test, test result
As shown in the table：
From the preparation for providing the fire-retardant silicon dioxide composite material of electric wire known to above-mentioned experiment test according to the present invention
Electric wire made from method with fire-retardant silicon dioxide composite material its with high-specific surface area, good dispersibility is manufactured
Silastic product has good physical property.
In conclusion electric wire provided by the invention passes through selection with the preparation method of fire-retardant silicon dioxide composite material
Magnesium sulfate and aluminum sulfate are that raw material synthesizes nano-sized magnesium hydroxide and nanometer hydrogen with water glass solution by certain proportioning hybrid reaction
Alumina composite earth silicon material, and in the reaction by adding polyethylene glycol, silicon dioxide composite material obtained has
Good dispersibility, high activity, high-specific surface area, heat can be quickly absorbed when as fire proofing reduces the object surface that catches fire
Temperature, while forming protective film barrier flame in combustible surface makes it stop burning.
Example the above is only the implementation of the present invention is not intended to limit the scope of the invention, every to utilize this hair
Equivalents made by bright description are applied directly or indirectly in relevant technical field, are similarly included in this hair
In bright scope of patent protection.
Claims (5)
1. a kind of electric wire preparation method of fire-retardant silicon dioxide composite material, which is characterized in that include the following steps：
The polyethylene glycol solid stirring and dissolving for accounting for bottom water 0.1-0.67wt% is added after bottom water heating, adds water glass solution and stirs
It mixes uniformly, it is that 9-10.6 obtains reaction solution to adjust pH, and it is 3.5-5m that flow is controlled in reaction solution3/ h is separately added into 15-
30wt% dilution heat of sulfuric acid, water glass solution and acid magnesium sulfate and aluminum sulfate mixture solution are stirred to react, when being continuously added into
Between be 60-90min, add dilution heat of sulfuric acid be acidified to pH be 3-5 obtain reaction paste；
Magnesium sulfate concentration is 4-14wt%, a concentration of 4- of aluminum sulfate in the wherein described sour sulfur acid magnesium and aluminum sulfate mixture solution
14wt%, SiO in the water glass solution2Content is 15-25wt%；
Water washing, re-dry is added to crush to obtain electric wire fire-retardant silicon dioxide composite material the reaction paste.
2. the electric wire according to claim 1 preparation method of fire-retardant silicon dioxide composite material, which is characterized in that
A concentration of 6-10wt% of dilute sulfuric acid in the acidity magnesium sulfate and aluminum sulfate mixture solution.
3. the electric wire according to claim 1 preparation method of fire-retardant silicon dioxide composite material, which is characterized in that
The water glass solution is by selecting modulus to be made for 2.5-3.6 solid water glass.
4. the electric wire according to claim 1 preparation method of fire-retardant silicon dioxide composite material, which is characterized in that
The mass fraction that the polyethylene glycol solids loading content accounts for bottom water is 0.4-0.67%.
5. the electric wire according to claim 1 preparation method of fire-retardant silicon dioxide composite material, which is characterized in that
Include the following steps：
Step 1：Prepare a concentration of 6-10wt%, magnesium sulfate concentration 4-14wt%, a concentration of 4- of aluminum sulfate of dilute sulfuric acid
The acid magnesium sulfate and aluminum sulfate mixture solution of 14wt%；
Step 2：It is to be passed through steam in 2.5-3.6 solid water glass addition roller rotary spherical digester and be forced into 0.6MPa to select modulus, is protected
Pressure 2 hours, adds water that SiO is made2Content is the water glass solution of 15-25wt%；
Step 3：Bottom water is first added in a kettle and is warming up to 80-95 DEG C, the poly- second two for accounting for bottom water 0.1-0.67wt% is added
Alcohol solid stirring and dissolving, adds water glass solution and stirs evenly, and it is that 9-10.6 obtains reaction solution to adjust pH, and reaction starts,
It is 3.5-5m that flow is controlled in reaction solution3/ h is separately added into 15-30wt% dilution heat of sulfuric acid, water glass solution and acid sulfuric acid
Magnesium and aluminum sulfate mixture solution are stirred to react, and it is 60-90min to be continuously added into the time, and controlling reaction temperature is 80-95 DEG C, then is added
It is 3-5 to enter the dilution heat of sulfuric acid that mass fraction is 22% to adjust pH, and aging 30min obtains reaction paste；
Step 4：It is that spraying slurry is made in 500-800 μ S/cm by the conductivity that the reaction paste adds water washing to drainage, by institute
It states spraying slurry and powdery product, control grain size D is made by spray drying device50It will be described powdered for 7.5-8.5 μm
Product crushes to obtain the fire-retardant silicon dioxide composite material of electric wire.
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Cited By (1)
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