CN108219473A - Room temperature vulcanization Ceramic silicon rubber foam seal agent and preparation method thereof - Google Patents
Room temperature vulcanization Ceramic silicon rubber foam seal agent and preparation method thereof Download PDFInfo
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- 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
- C08L83/06—Polysiloxanes containing silicon bound to oxygen-containing groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J9/00—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof
- C08J9/04—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof using blowing gases generated by a previously added blowing agent
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2383/00—Characterised by the use 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; Derivatives of such polymers
- C08J2383/04—Polysiloxanes
- C08J2383/06—Polysiloxanes containing silicon bound to oxygen-containing groups
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2483/00—Characterised by the use 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; Derivatives of such polymers
- C08J2483/04—Polysiloxanes
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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
- 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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- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2203/00—Applications
- C08L2203/14—Applications used for foams
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- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- 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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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
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- Engineering & Computer Science (AREA)
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Abstract
The invention discloses a kind of room temperature vulcanization Ceramic silicon rubber foam seal agent and preparation method thereof.Its component includes α, ω dialkyl polydimethylsiloxanes, precipitated silica, mica powder, ceramic additive, surface conditioning agent, vinyl silicone oil, containing hydrogen silicone oil, catalyst and blowing promotor.Wherein ceramic additive is alumina silicate, magnesium silicate, boric acid, zinc borate, glass dust, TiO2One or more of.Ceramic silicon rubber foam seal agent prepared by the present invention not only has the excellent performance of silicon foams sealant, but also fine and close ceramic body is formed under burning or hot conditions, has the characteristics that stable structure, fire resistance stabilization, good insulation preformance.
Description
Technical field
The invention belongs to technical field of polymer materials, and it is close to be specifically related to a kind of room temperature vulcanization Ceramic silicon rubber foam
Seal agent and preparation method thereof.
Background technology
Silicon foams sealant is a kind of novel porous polymeric elastic material, and alternately master is formed by silicon oxygen bond
Chain, the organic group composition side chain being connected with silicon.Not only the light weight with foamed material, specific strength are high, heat-proof quality is good for it,
It is good to absorb shock loading and high-frequency vibration ability etc., heat-resisting, cold-resistant, resistance to ozone and ultraviolet spoke also with organosilicon protrusion
It penetrates, and is widely used in the industrial departments such as Aeronautics and Astronautics, electronics, electric appliance.
Organosilicon polymer alternately form main chain by silicon oxygen bond, the organic group that is connected with silicon forms side chain, divides after burning
Solution is into SiO2With certain fire retardation.It but can for the fire performance of sealant material and safety in some key areas
More exacting terms is proposed by property.Equipment needs to keep the normal fortune in certain time such as under fire or hot conditions
Row, and material is after combustion without particular/special requirements such as toxic gas generations.
Application number：201710076088.9 the fire-retardant RTV foam silicone rubber of entitled low viscosity and its preparation
A kind of low viscosity has been obtained in the patent of method can be with the silicon rubber foam of fire protection flame retarding, by the addition of fire retardant burned
Cheng Zhong, the substance of generation can be such that flame gradually extinguishes, fire-retardant so as to achieve the effect that.But residue causes the material after combustion
Close property is poor, easily comes off, does not have fireproofing function.
Application number：201610141928.0 a kind of entitled room temperature vulcanization organosilicon foam silicone encapsulant and its system
Obtain that a kind of preparation process is simple in the patent of Preparation Method, the silicon rubber foam sealant of soft texture, but it is not directed to resistance
The problem of combustion property.
Invention content
The present invention is of the existing technology really sunken to overcome, and provides a kind of room temperature vulcanization Ceramic silicon rubber foam seal
Agent, the sealant have the excellent performance of room temperature vulcanized silicone rubber foam seal agent, and in burning or high temperature item completely
Fine and close ceramic body is formed under part, there is stable structure, fire resistance stabilization, good insulation preformance.
An object of the present invention is to provide a kind of room temperature vulcanization Ceramic silicon rubber foam seal agent, foams including blending
Following components, in parts by weight：
Heretofore described ceramic additive is alumina silicate, magnesium silicate, boric acid, zinc borate, glass dust, titanium dioxide
(TiO2One or more of).
α used in the present invention, alpha, omega-dihydroxy polydimethyl siloxane viscosity are 5000~10000mPas, preferably
6000~8000mPas.
The viscosity of vinyl silicone oil used in the present invention is 1500~5000mPas, preferably 3000~4000mPa
s。
The hydrogen content of containing hydrogen silicone oil used in the present invention is 0.5%~1.5%.
Catalyst used in the present invention is catalyst commonly used in the art, preferably chloroplatinic acid-octanol complex, platinum-second
One or more of alkenylsiloxane complexes, platinum-diethyl phthalate complex, platinum-alkynes complex.
Surface conditioning agent used in the present invention is surface conditioning agent commonly used in the art, preferably three second of Diethylaminomethyl
One or more of oxysilane, gamma-aminopropyl-triethoxy-silane, isopropyl titanate, tetrabutyl titanate.
Blowing promotor used in the present invention is glycerine, ethylene glycol, pentaerythrite, one kind or several in diphenyl silanediol
Kind.
The room temperature vulcanization Ceramic silicon rubber foam seal agent of the present invention can also need to add various this fields according to processing
Usual auxiliaries, such as quartz sand, wollastonite, zinc oxide, dosage are conventional amount used or are carried out according to the requirement of actual conditions
Adjustment.
The second object of the present invention is to provide a kind of preparation method of room temperature vulcanization Ceramic silicon rubber foam seal agent, packet
Include following steps：
It is weighed by the amount including the α, alpha, omega-dihydroxy polydimethyl siloxane, precipitated silica, mica powder, pottery
Component including porcelain additive, vinyl silicone oil, surface conditioning agent, containing hydrogen silicone oil, blowing promotor and catalyst contains by described in
Hydrogen silicone oil and catalyst are combined uniformly mixed sulfur foam after being mixed respectively with other components and obtain the room temperature sulphur again
Change Ceramic silicon rubber foam seal agent；
It is preferred that it weighs the precipitated silica, mica powder, ceramic additive, surface conditioning agent and accounts for the amount 50
Base material A is made in processing under the vinyl silicone oil mixing vacuum of~80%wt, weighs the α, alpha, omega-dihydroxy polydimethyl siloxane
And containing hydrogen silicone oil, it mixes, grind with base material A, component A is mixed to get under vacuum；It weighs residual ethylene base silicone oil, described help foaming
Agent and catalyst, under vacuum stirring B component is made；Under room temperature, component A and B component are uniformly mixed, sulfur foam to obtain the final product
To the room temperature vulcanization Ceramic silicon rubber foam seal agent.
Wherein, the vinyl silicone oil mixed with precipitated silica, mica powder, ceramic additive, surface conditioning agent
Amount preferably accounts for the 60~70% of the vinyl silicone oil total amount.
It is furthermore preferred that include the following steps：
(1) precipitated silica, mica powder, ceramic additive and the vinyl for accounting for the 50~80%wt of amount are weighed
Silicone oil, surface conditioning agent are added in vacuum kneader, are handled under 110~140 DEG C of temperature, 0.08~0.099MPa of vacuum degree
Base material A is made in 60~90min；
(2) α, alpha, omega-dihydroxy polydimethyl siloxane and containing hydrogen silicone oil are weighed, mixes, grind with base material A, then
By mixture using rotating speed as 1500~2000r/min, 0.08~0.099MPa of vacuum degree under stir 10~20min, obtain A groups
Point；
(3) it weighs residual ethylene base silicone oil and the blowing promotor, catalyst is added to homogenizer, mix, turning
B component is made to stir 10~20min under 1500~2000r/min, 0.08~0.099MPa of vacuum degree in speed；
(4) under room temperature, component A and B component are uniformly mixed, then 15~20min of sulfur foam, obtain the room
Temperature vulcanization Ceramic silicon rubber foam seal agent.
Ceramic mechanism involved in the present invention, common silicon foams become SiO after combustion2With certain resistance to
Fiery performance, but the SiO after burning2It in powdery, easily comes off, without the effect that continuation is fire-retardant and seals.The silicon of the present invention
Rubbery foam sealant decomposes the SiO of generation2Can occur under the action of ceramic additive with mica powder it is co-melting, in SiO2With
The edge of mica powder forms a kind of liquid phase eutectic, and this congruent melting material is constantly spread, in SiO2Between mica powder particle
Play connection function, fine and close ceramic-like housing be formed by curing in the outer surface of material after cooling, with this hinder flame and heat after
It is continuous inwardly to propagate.The ablation time is longer, and the liquid phase eutectic of formation is more, and ceramic-like housing is harder, and flame retardant effect is better.
Compared with prior art, the invention has the advantages that：
1. preparation process is simple, uniform foam cell, flexibility is good, easy to use.
2. excellent high- and low-temperature resistance can be used for a long time in the range of -60 DEG C to 250 DEG C.
3. toxic smog will not be generated during burning, ceramic can be generated after meeting high temperature and catching fire, be transformed into it is hard from
The ceramic product of support, this ceramic product have certain intensity and can bear certain impact force, can resist 600
The ablation of DEG C -1000 DEG C of open fires can simultaneously keep the integrality of product, and the ablation time is longer, temperature is higher, and hard effect is brighter
It is aobvious；Good flame resistance, up to FV-0 grades.
Specific embodiment
With reference to embodiment, the invention will be further described, but the present invention is not limited in following examples.
Raw materials used in embodiment is commercially available.
Embodiment 1
The agent of room temperature vulcanization Ceramic silicon rubber foam seal includes following components, in parts by weight：
The preparation of embodiment 1 includes the following steps：
(1) weigh whole precipitated silicas, mica powder, alumina silicate, Diethylaminomethyl triethoxysilane and
80%wt vinyl silicone oils, are added in vacuum kneader, handle 60min at 140 DEG C of temperature, vacuum degree 0.08MPa, are made
Base material A；
(2) whole α, alpha, omega-dihydroxy polydimethyl siloxane and containing hydrogen silicone oil are weighed, mixes, grind with base material A, then
By mixture using rotating speed as 1500r/min, vacuum degree 0.08MPa stirring 20min obtain component A；
(3) it weighs residual ethylene base silicone oil and whole glycerine, chloroplatinic acid-octanol complex is added to homogenizer
In, it is 1500r/min in rotating speed, stirs 20min under vacuum degree 0.08MPa, B component is made；
(4) under room temperature, component A and B component are uniformly mixed, be subsequently poured into mold cure foaming 20min to get to
Room temperature vulcanization Ceramic silicon rubber foam seal agent material.
Foam performance is tested with reference to national standard, test result is shown in Table 1.
Embodiment 2
The agent of room temperature vulcanization Ceramic silicon rubber foam seal includes following components, in parts by weight：
The preparation of embodiment 2 includes the following steps：
(1) whole precipitated silicas, mica powder, magnesium silicate, gamma-aminopropyl-triethoxy-silane and 70% are weighed
Wt vinyl silicone oils, are added in vacuum kneader, handle 70min at 130 DEG C of temperature, vacuum degree 0.09MPa, base-material is made
A；
(2) whole α, alpha, omega-dihydroxy polydimethyl siloxane and containing hydrogen silicone oil are weighed, mixes, grind with base material A, then
By mixture using rotating speed as 1700r/min, vacuum degree 0.09MPa stirring 15min obtain component A；
(3) ethylene glycol of residual ethylene base silicone oil and whole is weighed, platinum-vinyl siloxane complex is added at a high speed
In blender, it is 1700r/min in rotating speed, stirs 15min under vacuum degree 0.09MPa, B component is made；
(4) under room temperature, component A and B component are uniformly mixed, be subsequently poured into mold cure foaming 18min to get to
Room temperature vulcanization Ceramic silicon rubber foam seal agent material.
Foam performance is tested with reference to national standard, test result is shown in Table 1.
Embodiment 3
The agent of room temperature vulcanization Ceramic silicon rubber foam seal includes following components, in parts by weight：
The preparation of embodiment 3 includes the following steps：
(1) whole precipitated silicas, mica powder, boric acid, isopropyl titanate and 60%wt vinyl silicone oils are weighed,
It is added in vacuum kneader, handles 80min at 120 DEG C of temperature, vacuum degree 0.09MPa, base material A is made；
(2) whole α, alpha, omega-dihydroxy polydimethyl siloxane and containing hydrogen silicone oil are weighed, mixes, grind with base material A, then
By mixture using rotating speed as 1800r/min, vacuum degree 0.09MPa stirring 13min obtain component A；
(3) it weighs residual ethylene base silicone oil and whole pentaerythrites, platinum-diethyl phthalate complex is added to height
In fast blender, it is 1800r/min in rotating speed, stirs 13min under vacuum degree 0.09MPa, B component is made；
(4) under room temperature, component A and B component are uniformly mixed, be subsequently poured into mold cure foaming 16min to get to
Room temperature vulcanization Ceramic silicon rubber foam seal agent material.
Foam performance is tested with reference to national standard, test result is shown in Table 1.
Embodiment 4
The agent of room temperature vulcanization Ceramic silicon rubber foam seal includes following components, in parts by weight：
The preparation of embodiment 4 includes the following steps：
(1) whole precipitated silicas, mica powder, zinc borate, tetrabutyl titanate and 60%wt vinyl silicon are weighed
Oil is added in vacuum kneader, handles 90min at 110 DEG C of temperature, vacuum degree 0.099MPa, base material A is made；
(2) whole α, alpha, omega-dihydroxy polydimethyl siloxane and containing hydrogen silicone oil are weighed, mixes, grind with base material A, then
By mixture using rotating speed as 2000r/min, vacuum degree 0.099MPa stirring 10min obtain component A；
(3) it weighs residual ethylene base silicone oil and whole diphenyl silanediols, platinum-alkynes complex is added to homogenizer
In, it is 2000r/min in rotating speed, stirs 10min under vacuum degree 0.099MPa, B component is made；
(4) under room temperature, component A and B component are uniformly mixed, be subsequently poured into mold cure foaming 15min to get to
Room temperature vulcanization Ceramic silicon rubber foam seal agent material.
Foam performance is tested with reference to national standard, test result is shown in Table 1.
Comparative example 1
A kind of room temperature vulcanization Ceramic silicon rubber foam seal agent includes the component of following mass parts：
The preparation of comparative example 1 includes the following steps：
(1) full precipitated silica, alumina silicate, isopropyl titanate and 70%wt vinyl silicone oils are weighed, is added to true
In empty kneader, 80min is handled at 120 DEG C of temperature, vacuum degree 0.09MPa, base material A is made；
(2) whole α, alpha, omega-dihydroxy polydimethyl siloxane and containing hydrogen silicone oil are weighed, mixes, grind with base material A, then
By mixture using rotating speed as 1800r/min, vacuum degree 0.09MPa stirring 13min obtain component A；
(3) it weighs residual ethylene base silicone oil and whole pentaerythrites, platinum-diethyl phthalate complex is added to
In homogenizer, it is 1800r/min in rotating speed, stirs 13min under vacuum degree 0.09MPa, B component is made；
(4) under room temperature, component A and B component are uniformly mixed, be subsequently poured into mold cure foaming 16min to get to
Room temperature vulcanization Ceramic silicon rubber foam seal agent material.
Foam performance is tested with reference to national standard, test result is shown in Table 1.
Comparative example 2
A kind of room temperature vulcanization Ceramic silicon rubber foam seal agent includes the component of following mass parts：
The preparation of comparative example 2 includes the following steps：
(1) whole precipitated silicas, alumina silicate, isopropyl titanate and 70%wt vinyl silicone oils is weighed to be added to
In vacuum kneader, 80min is handled at 120 DEG C of temperature, vacuum degree 0.09MPa, base material A is made；
(2) whole α, alpha, omega-dihydroxy polydimethyl siloxane and containing hydrogen silicone oil are weighed, mixes, grind with base material A, then
By mixture using rotating speed as 1800r/min, vacuum degree 0.09MPa stirring 13min obtain component A；
(3) pentaerythrite of residual ethylene base silicone oil and whole is weighed, platinum-diethyl phthalate complex adds in
Into homogenizer, it is 1800r/min in rotating speed, stirs 13min under vacuum degree 0.09MPa, B component is made；
(4) under room temperature, component A and B component are uniformly mixed, be subsequently poured into mold cure foaming 16min to get to
Room temperature vulcanization Ceramic silicon rubber foam seal agent material.
Foam performance is tested with reference to national standard, test result is shown in Table 1.
Table 1 is the performance test results of embodiment and comparative example
In the performance test results of table 1, comparative example 1 does not use mica powder, and flame retardant property and sintered body bending strength are equal
Decline.Comparative example 2 does not use ceramic additive, is in powdery after sample combustion, almost without intensity.Room temperature provided by the invention
Vulcanize Ceramic silicon rubber foam seal agent, excellent fireproof performance, high-temp combustion can ceramic, and with certain mechanical property
Can, it is with a wide range of applications.
Claims (10)
1. a kind of room temperature vulcanization Ceramic silicon rubber foam seal agent includes the following components of blending foaming, in parts by weight：
Wherein, the ceramic additive is one kind in alumina silicate, magnesium silicate, boric acid, zinc borate, glass dust, titanium dioxide
It is or several.
2. room temperature vulcanization Ceramic silicon rubber foam seal agent according to claim 1, it is characterised in that sent out including blending
The following components of bubble, in parts by weight：
3. room temperature vulcanization Ceramic silicon rubber foam seal agent according to claim 1, it is characterised in that：
The α, alpha, omega-dihydroxy polydimethyl siloxane viscosity be 5000~10000mPas, preferably 6000~
8000mPa·s。
4. room temperature vulcanization Ceramic silicon rubber foam seal agent according to claim 1, it is characterised in that：
The viscosity of the vinyl silicone oil is 1500~5000mPas, preferably 3000~4000mPas.
5. room temperature vulcanization Ceramic silicon rubber foam seal agent according to claim 1, it is characterised in that：
The hydrogen content of the containing hydrogen silicone oil is 0.5%~1.5%.
6. room temperature vulcanization Ceramic silicon rubber foam seal agent according to claim 1, it is characterised in that：
The catalyst is chloroplatinic acid-octanol complex, platinum-vinyl siloxane complex, platinum-diethyl phthalate are matched
Close one or more of object, platinum-alkynes complex.
7. room temperature vulcanization Ceramic silicon rubber foam seal agent according to claim 1, it is characterised in that：
The blowing promotor is one or more of glycerine, ethylene glycol, pentaerythrite, diphenyl silanediol.
8. room temperature vulcanization Ceramic silicon rubber foam seal agent according to claim 1, it is characterised in that：
The surface conditioning agent is Diethylaminomethyl triethoxysilane, gamma-aminopropyl-triethoxy-silane, metatitanic acid isopropyl
One or more of ester, tetrabutyl titanate.
9. a kind of preparation of any one of them room temperature vulcanization Ceramic silicon rubber foam seal agent according to claim 1~8
Method, it is characterised in that include the following steps：
It is weighed by the amount including the α, alpha, omega-dihydroxy polydimethyl siloxane, precipitated silica, mica powder, ceramic
Component including additive, vinyl silicone oil, surface conditioning agent, containing hydrogen silicone oil, blowing promotor and catalyst, by the Silicon Containing Hydrogen
Oil and catalyst are combined uniformly mixed sulfur foam and obtain the room temperature vulcanization pottery again after being mixed respectively with other components
Porcelain SiClx rubbery foam sealant.
10. according to the preparation method of the room temperature vulcanization Ceramic silicon rubber foam seal agent described in claim 9, it is characterised in that packet
Include following steps：
(1) precipitated silica, mica powder, ceramic additive and the ethylene for accounting for the 50%~80%wt of amount are weighed
Base silicone oil, surface conditioning agent, mixing handle 60~90min under 110~140 DEG C of temperature, 0.08~0.099MPa of vacuum degree,
Base material A is made；
(2) α, alpha, omega-dihydroxy polydimethyl siloxane and containing hydrogen silicone oil are weighed, mixes, grind with base material A, it then will be mixed
Close object using rotating speed as 1500~2000r/min, 0.08~0.099MPa of vacuum degree under stirring 10~20min, obtain component A；
(3) residual ethylene base silicone oil and the blowing promotor, catalyst are weighed, mix, rotating speed for 1500~2000r/min,
10~20min is stirred under 0.08~0.099MPa of vacuum degree, B component is made；
(4) under room temperature, component A and B component are uniformly mixed, then 15~20min of sulfur foam, obtain the room temperature sulphur
Change Ceramic silicon rubber foam seal agent.
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| CN109575605A (en) * | 2018-12-18 | 2019-04-05 | 广德艾森新材料科技有限公司 | A kind of flame retardant silica gel foam and preparation method thereof |
| CN110256853A (en) * | 2019-05-10 | 2019-09-20 | 肇庆皓明有机硅材料有限公司 | A kind of in-place molding foamed silastic sealing ring composition and preparation method thereof |
| CN110396295A (en) * | 2019-08-02 | 2019-11-01 | 北京化工大学 | A kind of room temperature vulcanization organosilicon foaming sealant of high temperature resistant heat insulation and preparation method thereof |
| CN110845850A (en) * | 2019-11-07 | 2020-02-28 | 华南理工大学 | Ceramizable halogen-free flame-retardant silicone rubber and preparation method thereof |
| CN113122180A (en) * | 2021-04-20 | 2021-07-16 | 浙江清优材料科技有限公司 | Fireproof ceramic organosilicon foaming sealant and preparation method thereof |
| CN113999528A (en) * | 2021-07-19 | 2022-02-01 | 华南理工大学 | Polyorganosiloxane foam for heat preservation and insulation and preparation method thereof |
| CN114957997A (en) * | 2022-05-25 | 2022-08-30 | 南京工业大学 | Ablation-resistant high-heat-insulation type organic silicon foam material and preparation method thereof |
| CN114989612A (en) * | 2022-06-16 | 2022-09-02 | 四川大学 | Low-density low-heat-conduction high-temperature ceramizable organic silicon foam material and preparation method thereof |
| CN115044210A (en) * | 2022-06-28 | 2022-09-13 | 杭州师范大学 | Ablation-resistant efficient heat-insulation room-temperature vulcanized silicone rubber foam and preparation method thereof |
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| CN115819982A (en) * | 2022-12-22 | 2023-03-21 | 长春工业大学 | Flame-retardant ceramic liquid silicone rubber foam material and preparation method and application thereof |
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