CN108192354A - A kind of thermally safe silica gel of dual temperature - Google Patents
A kind of thermally safe silica gel of dual temperature Download PDFInfo
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- CN108192354A CN108192354A CN201711498849.6A CN201711498849A CN108192354A CN 108192354 A CN108192354 A CN 108192354A CN 201711498849 A CN201711498849 A CN 201711498849A CN 108192354 A CN108192354 A CN 108192354A
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- 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
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- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
- C09K5/00—Heat-transfer, heat-exchange or heat-storage materials, e.g. refrigerants; Materials for the production of heat or cold by chemical reactions other than by combustion
- C09K5/08—Materials not undergoing a change of physical state when used
- C09K5/14—Solid materials, e.g. powdery or granular
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- 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
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- C08K2201/002—Physical properties
- C08K2201/006—Additives being defined by their surface area
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- C—CHEMISTRY; METALLURGY
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- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/014—Additives containing two or more different additives of the same subgroup in C08K
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- C08L2203/00—Applications
- C08L2203/20—Applications use in electrical or conductive gadgets
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- C08L2203/00—Applications
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- C08L2203/202—Applications use in electrical or conductive gadgets use in electrical wires or wirecoating
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
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- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract
The present invention discloses a kind of thermally safe silica gel of dual temperature, and manufacture material includes by weight：100 parts of silicon rubber；15 40 parts of white carbon；30 70 parts of thermal insulating filling；15 40 parts of heat filling；10 35 parts of fire retardant；0.5 3 parts of coupling agent；5 10 parts of antistructurizing agent；0.2 10 parts of high temperature catalyst；05 parts of other auxiliary agents；0.4 2 parts of vulcanizing agent.The present invention has effects that heat-insulated under room temperature heat dissipation, high temperature or fire, when being applied to component normal operation in fire-resistant wire and cable, bus duct, engine and power battery, can spread the heat of resistance, frictional heat, charge and discharge generation in time.Meanwhile when overheating components cause high temperature or fire, this dual temperature material can decompose rapidly, be undergone phase transition under catalyst action, become with porous structure, hard ceramic shape material.
Description
Technical field
The present invention relates to a kind of silica gel materials.
Background technology
Traditional heat-barrier material is such as using mpp, epp, polyurethane, PVC, CR as the expanded material of base material, referred to as organic foam,
Its room temperature thermal conductivity factor is in 0.2w/m.k hereinafter, with good heat insulation property.But such foam temperature tolerance is poor, and once
Occur under high temperature or fire condition, moment melt-combustion turns to dust and ashes, and loses its structure and thermal insulation.
Aeroge is known as the best new material of thermal insulation by industry, and thermal conductivity factor is in 0.04w/m.k. but aeroge
This as nanostructured SiO 2 powder, can only be used as thermo insulating filling material, be added in specific base material, competence exertion its
Heat insulation, base material are usually inorfil product.Such as alumina silicate fibre felt pan, oxidization fiber fiber.Its complex production process,
Material and processing cost are expensive.
Invention content
The main object of the present invention is to propose that one kind has heat conduction and heat radiation, has excellent thermal insulation under high temperature or flame
The thermally safe silica gel of dual temperature.
To achieve the above object, the present invention proposes a kind of thermally safe silica gel of dual temperature, and the manufacture material of the silica gel is by weight
Part includes：100 parts of silicon rubber；15-40 parts of white carbon；30-70 parts of thermal insulating filling；15-40 parts of heat filling；Fire retardant 10-35
Part；0.5-3 parts of coupling agent；5-10 parts of antistructurizing agent；0.2-10 parts of high temperature catalyst；0-5 parts of other auxiliary agents；Vulcanizing agent
0.4-2 parts.
Preferably, the silicon rubber is dimethyl silica gel, methyl vinyl silicone rubber, methyl phenyl silicone rubber, fluorine silicon rubber
It is one or more in glue.
Preferably, the molecular weight of silicon rubber is between 500,000~1,000,000, and preferably 600,000~950,000.
Preferably, the mass fraction of effective functional group of silicon rubber is between 0.01%~3%.
Preferably, the white carbon is precipitated silica, fume colloidal silica, one kind in hydrophabic silica or more
Kind, the white carbon specific surface area is in 120~300m2/ g, preferably 150~250m2/g。
Preferably, the thermal insulating filling include expandable microspheres foaming agent, glass microballoon, sepiolite, flyash, vermiculite power,
At least two in expanded perlite, mica powder, wollastonite, talcum powder material.The thermal insulating filling is preferably between 30~50 parts.
Preferably, the heat filling be aluminium oxide, it is magnesia, silver powder, aluminium nitride, boron nitride, silicon nitride, nano oxidized
It is one or more in the simple substance such as aluminium, carbon dust, graphite, zinc oxide, silica, metal or its oxide.
Preferably, the heat filling is metal oxide, and its adding proportion is between 15~40 parts.
Preferably, the fire retardant for aluminium hydroxide, magnesium hydroxide, magnesia, hydrotalcite, silicon powder, talcum powder or its
Accordingly modified inorganic based flame retardant.
Preferably, the high temperature catalyst is Cd, Pt class catalyst, iron oxide black, nano-titanium dioxide, zinc oxide, oxygen
Change one or more in boron.
Preferably, the antistructurizing agent is the hydroxy silicon oil of low viscosity, such as in methoxyl group silicone oil, silazane etc.
It is one or more.
Preferably, the coupling agent is one or more in 151,171,172 and long alkane base silane.
Preferably, the vulcanizing agent is squeezed out for silica gel and vulcanizing agent is often used in compression molding.
As described above, heat-barrier material of the present invention by introducing room temperature Heat Conduction Material, special construction in silicon rubber base material,
And high-temperature phase-change catalysts, the effect of heat-insulated under the heat dissipation of product room temperature, high temperature or fire is assigned, thus it is called dual temperature
Material.When it is applied to component normal operation in fire-resistant wire and cable, bus duct, engine and power battery, can by resistance, rub
The heat that wiping heat, charge and discharge generate is spread in time, ensures component consistency, is reduced because heat accumulation causes local temperature excessively high
Caused line short, on fire or even hidden peril of explosion.Meanwhile when overheating components cause high temperature or fire, this dual temperature material
It can decompose rapidly, be undergone phase transition under catalyst action, be become with porous structure, hard ceramic shape material.This ceramic-like
Material has good thermal insulation and fire resistance, line short and chain burning when can prevent from overheating.
Specific embodiment
The technical solution in the embodiment of the present invention will be clearly and completely described below, it is clear that described implementation
Example is only the part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, this field is general
Logical technical staff all other embodiments obtained without creative efforts belong to what the present invention protected
Range.
In addition, the technical solution between each embodiment can be combined with each other, but must be with ordinary skill
Personnel can be implemented as basis, and this technical side is will be understood that when the combination appearance of technical solution is conflicting or can not realize
The combination of case is not present, also not the present invention claims protection domain within.
Embodiment 1
By molecular weight 600,000,100 parts of the methyl vinyl silicon kautschuk of contents of ethylene 0.04%, specific surface area 150
40 parts of gas-phase silica, 20 parts of calcined kaolin, 30 parts of expanded perlite, 30 parts of gaseous oxidation aluminium, 25 parts of aluminium hydroxide, hydroxyl
7 parts of base silicone oil, 0.5 part of methyltrimethoxysilane, 5 parts of iron oxide, platinum -0.6 part of ethylene base complex are mixed by kneader
Refining is uniform, obtains silica gel rubber compound, and silica gel rubber compound produced above added 2 parts of vulcanizing agents 2 on a mill, and 5- dimethyl-
2,5-2 di-tert-butyl peroxide hexanes, in vulcanizing press, through 10Mpa, 165 DEG C, press cure is to get dual temperature within 10 minutes
Thermally safe material product.
Embodiment 2
By 95 parts of the methyl vinyl silicon kautschuk of 600,000 contents of ethylene 0.04% of molecular weight, 600,000 second of molecular weight
5 parts of the methyl vinyl silicon kautschuk of amount vinyl content 1.0%, 30 parts of 150 gas-phase silica of specific surface area, 30 parts of mica powder,
30 parts of expanded perlite, 10 parts of glass microballoon, 25 parts of aluminium oxide, 5 parts of gas phase titanium dioxide, 20 parts of aluminium hydroxide, wollastonite 15
Part, 8 parts of hydroxy silicon oil, 0.65 part of methyltrimethoxysilane, 5 parts of iron oxide, platinum -0.8 part of ethylene base complex, process
Kneader is kneaded uniformly, obtains silica gel rubber compound, silica gel rubber compound produced above is added 1.0 parts of vulcanizing agents 2 on a mill,
5- dimethyl -2,5-2 di-tert-butyl peroxide hexanes, in vulcanizing press, through 10Mpa, 165 DEG C, pressurize sulphur for 10 minutes
Change to get the thermally safe material product of dual temperature.
Embodiment 3
By 100 parts of the methyl vinyl silicon kautschuk of 800,000 contents of ethylene 0.1% of molecular weight, 150 gas of specific surface area
25 parts of phase white carbon, 30 parts of mica powder, 20 parts of sepiolite, 10 parts of vermiculite power, 15 parts of aluminium oxide, 10 parts of zinc oxide, iron oxide black 5
Part, 30 parts of aluminium hydroxide, 20 parts of silicon powder.5 parts of hydroxy silicon oil, 0.8 part of methyltrimethoxysilane, 0.3 part of platinum dioxide, warp
It crosses kneader to be kneaded uniformly, obtains silica gel rubber compound, silica gel rubber compound produced above is added into 1.0 parts of vulcanizing agents on a mill
2,4- dichlorobenzoperoxides, in vulcanizing press, through 10Mpa, 140 DEG C, 10 minutes press cures are pacified to get dual temperature heat
Full material product.
Embodiment 4
By 100 parts of the methyl vinyl silicon kautschuk of 800,000 contents of ethylene 0.1% of molecular weight, specific surface area 200 is sunk
35 parts of shallow lake white carbon, 20 parts of flyash, 10 parts of talcum powder, 5 parts of vermiculite power, 10 parts of aluminium oxide, boron nitride 10,10 parts of zinc oxide,
10 parts of iron oxide black, 20 parts of aluminium hydroxide, 15 parts of silicon powder.5 parts of hydroxy silicon oil, 0.8 part of methyltrimethoxysilane, dioxy
Change 0.3 part of platinum, be kneaded uniformly by kneader, obtain silica gel rubber compound, silica gel rubber compound produced above is added on a mill
Add 1.5 parts of vulcanizing agents 2,4- dichlorobenzoperoxides, in vulcanizing press, through 10Mpa, 140 DEG C, pressurize sulphur for 10 minutes
Change to get the thermally safe material product of dual temperature.
In conclusion heat-barrier material of the present invention by introducing room temperature Heat Conduction Material, special construction in silicon rubber base material,
And high-temperature phase-change catalysts, the effect of heat-insulated under the heat dissipation of product room temperature, high temperature or fire is assigned, thus it is called dual temperature
Material.When it is applied to component normal operation in fire-resistant wire and cable, bus duct, engine and power battery, can by resistance, rub
The heat that wiping heat, charge and discharge generate is spread in time, ensures component consistency, is reduced because heat accumulation causes local temperature excessively high
Caused line short, on fire or even hidden peril of explosion.Meanwhile when overheating components cause high temperature or fire, this dual temperature material
It can decompose rapidly, be undergone phase transition under catalyst action, be become with porous structure, hard ceramic shape material.This ceramic-like
Material has good thermal insulation and fire resistance, line short and chain burning when can prevent from overheating.
The foregoing is merely the preferred embodiment of the present invention, are not intended to limit the scope of the invention, every at this
Under the inventive concept of invention, the equivalent structure transformation made using present specification or directly/be used in other indirectly
Relevant technical field is included in the scope of patent protection of the present invention.
Claims (10)
1. a kind of thermally safe silica gel of dual temperature, which is characterized in that the manufacture material of the silica gel includes by weight：
100 parts of silicon rubber；
15-40 parts of white carbon；
30-70 parts of thermal insulating filling；
15-40 parts of heat filling；
10-35 parts of fire retardant；
0.5-3 parts of coupling agent；
5-10 parts of antistructurizing agent；
0.2-10 parts of high temperature catalyst；
0-5 parts of other auxiliary agents；
0.4-2 parts of vulcanizing agent.
2. the thermally safe silica gel of dual temperature according to claim 1, which is characterized in that the silicon rubber is dimethyl silica gel, first
It is one or more in base vinylsiloxane rubber, methyl phenyl silicone rubber, fluorine silicone rubber.
3. the thermally safe silica gel material of dual temperature according to claim 1, which is characterized in that the molecular weight of silicon rubber 500,000~
Between 1000000.
4. the thermally safe silica gel of dual temperature according to claim 2, which is characterized in that the quality of effective functional group of silicon rubber point
Number is between 0.01%~3%.
5. the thermally safe silica gel of dual temperature according to claim 1, which is characterized in that the white carbon for precipitated silica,
One or more in fume colloidal silica, hydrophabic silica, the white carbon specific surface area is in 120~300m2/g。
6. the thermally safe silica gel of dual temperature according to claim 1, which is characterized in that the thermal insulating filling is sent out comprising expandable microspheres
In infusion, glass microballoon, sepiolite, flyash, vermiculite power, expanded perlite, mica powder, wollastonite, talcum powder material extremely
It is two kinds few.
7. the thermally safe silica gel of dual temperature according to claim 1, which is characterized in that the heat filling is aluminium oxide, oxidation
The simple substance such as magnesium, silver powder, aluminium nitride, boron nitride, silicon nitride, nano aluminium oxide, carbon dust, graphite, zinc oxide, silica, metal or
It is one or more in its oxide.
8. the thermally safe silica gel of dual temperature according to claim 12, which is characterized in that the heat filling is metal oxide,
And its adding proportion is between 15~40 parts.
9. the thermally safe silica gel of dual temperature according to claim 1, which is characterized in that the fire retardant is aluminium hydroxide, hydrogen-oxygen
Change magnesium, magnesia, hydrotalcite, silicon powder, talcum powder or its inorganic based flame retardant being accordingly modified.
10. the thermally safe silica gel of dual temperature according to claim 1, which is characterized in that the high temperature catalyst is urged for Cd, Pt class
It is one or more in agent, iron oxide black, nano-titanium dioxide, zinc oxide, boron oxide.
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Cited By (15)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109206920A (en) * | 2018-08-31 | 2019-01-15 | 安庆市泽烨新材料技术推广服务有限公司 | Cracking resistance silicone rubber for cable sheath material and preparation method thereof |
| CN109370533A (en) * | 2018-10-31 | 2019-02-22 | 昆明理工大学 | A new application of hydrotalcite-like |
| CN109438989A (en) * | 2018-11-07 | 2019-03-08 | 长沙小如信息科技有限公司 | A kind of organic silicon rubber |
| CN109762344A (en) * | 2019-01-14 | 2019-05-17 | 东莞市南炬高分子材料有限公司 | A kind of halogen-free flame-retardant expanded silica gel material preparation method |
| CN110894362A (en) * | 2019-11-22 | 2020-03-20 | 国网天津市电力公司电力科学研究院 | A kind of preparation process of filled thermally conductive silicone rubber |
| CN111320453A (en) * | 2020-02-11 | 2020-06-23 | 中国电力科学研究院有限公司 | An insulating material for suppressing thermal runaway diffusion of batteries |
| CN111704800A (en) * | 2020-06-24 | 2020-09-25 | 步阳集团有限公司 | High-temperature ceramic blocking fireproof door sealing strip |
| CN112480686A (en) * | 2020-12-03 | 2021-03-12 | 常州市沃科科技有限公司 | Foaming silicon rubber core material and foaming heat-insulation buffering composite material |
| WO2021163826A1 (en) * | 2020-02-17 | 2021-08-26 | Dow Silicones Corporation | Elastomeric silicone materials and applications thereof |
| WO2022105988A1 (en) * | 2020-11-17 | 2022-05-27 | Wacker Chemie Ag | Silicone composition, method of making the same, and cable made from the same |
| CN114957795A (en) * | 2022-06-16 | 2022-08-30 | 江西广源化工有限责任公司 | Composite filler and preparation method thereof, and fluororubber composite material and preparation method thereof |
| WO2022218504A1 (en) * | 2021-04-12 | 2022-10-20 | Wacker Chemie Ag | Composition and a process for forming an insulated member using the same |
| US11629253B1 (en) | 2020-02-17 | 2023-04-18 | Dow Silicones Corporation | Elastomeric silicone materials and their applications |
| CN116218229A (en) * | 2022-11-22 | 2023-06-06 | 国能龙源环保泰州有限公司 | Water-collecting rubber plate, preparation method thereof, dehumidifying device and purification treatment method of dust-containing high-humidity gas |
| CN118721897A (en) * | 2024-06-20 | 2024-10-01 | 深圳市旭显电子材料有限公司 | A heat-resistant, heat-dissipating and breathable composite film |
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|---|---|---|---|---|
| CN109206920B (en) * | 2018-08-31 | 2021-07-30 | 宁波金三湖科技有限公司 | Anti-crack silicon rubber cable sheath material and preparation method thereof |
| CN109206920A (en) * | 2018-08-31 | 2019-01-15 | 安庆市泽烨新材料技术推广服务有限公司 | Cracking resistance silicone rubber for cable sheath material and preparation method thereof |
| CN109370533A (en) * | 2018-10-31 | 2019-02-22 | 昆明理工大学 | A new application of hydrotalcite-like |
| CN109438989A (en) * | 2018-11-07 | 2019-03-08 | 长沙小如信息科技有限公司 | A kind of organic silicon rubber |
| CN109762344A (en) * | 2019-01-14 | 2019-05-17 | 东莞市南炬高分子材料有限公司 | A kind of halogen-free flame-retardant expanded silica gel material preparation method |
| CN110894362A (en) * | 2019-11-22 | 2020-03-20 | 国网天津市电力公司电力科学研究院 | A kind of preparation process of filled thermally conductive silicone rubber |
| CN111320453A (en) * | 2020-02-11 | 2020-06-23 | 中国电力科学研究院有限公司 | An insulating material for suppressing thermal runaway diffusion of batteries |
| CN111320453B (en) * | 2020-02-11 | 2022-10-28 | 中国电力科学研究院有限公司 | An insulating material for suppressing thermal runaway diffusion of batteries |
| CN115087705A (en) * | 2020-02-17 | 2022-09-20 | 美国陶氏有机硅公司 | Elastomeric silicone materials and uses thereof |
| WO2021163826A1 (en) * | 2020-02-17 | 2021-08-26 | Dow Silicones Corporation | Elastomeric silicone materials and applications thereof |
| US11629253B1 (en) | 2020-02-17 | 2023-04-18 | Dow Silicones Corporation | Elastomeric silicone materials and their applications |
| CN111704800A (en) * | 2020-06-24 | 2020-09-25 | 步阳集团有限公司 | High-temperature ceramic blocking fireproof door sealing strip |
| WO2022105988A1 (en) * | 2020-11-17 | 2022-05-27 | Wacker Chemie Ag | Silicone composition, method of making the same, and cable made from the same |
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| WO2022218504A1 (en) * | 2021-04-12 | 2022-10-20 | Wacker Chemie Ag | Composition and a process for forming an insulated member using the same |
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| CN116218229A (en) * | 2022-11-22 | 2023-06-06 | 国能龙源环保泰州有限公司 | Water-collecting rubber plate, preparation method thereof, dehumidifying device and purification treatment method of dust-containing high-humidity gas |
| CN116218229B (en) * | 2022-11-22 | 2024-05-14 | 国能龙源环保泰州有限公司 | Water-collecting rubber plate, preparation method thereof, dehumidifying device and purification treatment method of dust-containing high-humidity gas |
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