CN109593225A - A kind of foam silicone rubber foaming agent and preparation method thereof - Google Patents

A kind of foam silicone rubber foaming agent and preparation method thereof Download PDF

Info

Publication number
CN109593225A
CN109593225A CN201811226268.1A CN201811226268A CN109593225A CN 109593225 A CN109593225 A CN 109593225A CN 201811226268 A CN201811226268 A CN 201811226268A CN 109593225 A CN109593225 A CN 109593225A
Authority
CN
China
Prior art keywords
foaming agent
parts
silicone rubber
reaction
foam silicone
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811226268.1A
Other languages
Chinese (zh)
Inventor
尹祝明
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.)
Anhui Xuchuan New Materials Technology Co Ltd
Original Assignee
Anhui Xuchuan New Materials Technology 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 Anhui Xuchuan New Materials Technology Co Ltd filed Critical Anhui Xuchuan New Materials Technology Co Ltd
Priority to CN201811226268.1A priority Critical patent/CN109593225A/en
Publication of CN109593225A publication Critical patent/CN109593225A/en
Pending legal-status Critical Current

Links

Classifications

    • 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
    • C08J9/06—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 by a chemical blowing agent
    • C08J9/08—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 by a chemical blowing agent developing carbon dioxide
    • 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
    • C08J9/06—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 by a chemical blowing agent
    • C08J9/10—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 by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • 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
    • C08J9/06—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 by a chemical blowing agent
    • C08J9/10—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 by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/102—Azo-compounds
    • C08J9/103—Azodicarbonamide
    • 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
    • C08J9/06—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 by a chemical blowing agent
    • C08J9/10—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 by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/104—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof
    • C08J9/105—Hydrazines; Hydrazides; Semicarbazides; Semicarbazones; Hydrazones; Derivatives thereof containing sulfur
    • 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
    • C08J9/06—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 by a chemical blowing agent
    • C08J9/10—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 by a chemical blowing agent developing nitrogen, the blowing agent being a compound containing a nitrogen-to-nitrogen bond
    • C08J9/107—Nitroso compounds
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/02—CO2-releasing, e.g. NaHCO3 and citric acid
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/04—N2 releasing, ex azodicarbonamide or nitroso compound
    • 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
    • C08J2203/00—Foams characterized by the expanding agent
    • C08J2203/20—Ternary blends of expanding agents
    • 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

Abstract

The invention discloses a kind of foam silicone rubber foaming agents and preparation method thereof, belong to silicon rubber processing technique field, the present invention is cooperated using organic foaming agent, inorganic foaming agent and protide foaming agent, while adding blowing promotor and film forming matter, and uses supercritical CO2The composite foamable agent with core-shell structure is prepared in reaction, organic foaming agent good dispersion, heat is discharged in reaction, inorganic foaming agent is nontoxic, discharge quantity is big, inorganic salts after reaction serve as filler, help to improve the microscopic surface texture of rubber, and it needs to absorb heat in reaction, it is organic, inorganic foaming agent is used in combination, help to save the energy, promote outgassing rate, the protide foaming agent of addition plays adjusting foaming stability simultaneously, uniformity and the effect for serving as surfactant, the foaming agent prepared has the stable and good controlling of blistering good and matching performance.

Description

A kind of foam silicone rubber foaming agent and preparation method thereof
Technical field
The invention belongs to silicon rubber processing technique fields, and in particular to a kind of foam silicone rubber foaming agent and its preparation side Method.
Background technique
Foamed silica gel is also known as silica gel foam, to be silicon rubber after foaming manufactured it is a kind of have it is flexible, porous and by silicon The characteristic of glue and the characteristic of foamed material are incorporated into integrated macromolecular elastomer.Silica gel foam, both maintained organosilicon it is nontoxic, Excellent characteristics such as high-low temperature resistant, insulation, weatherability, and the features such as have both light foamed material, sound-absorbing, antidetonation, as damping, subtract Vibration, sound insulation, heat-insulated contour performance materials are widely used in national defence, aerospace, communications and transportation, electronics industry, building and family The fields such as tool.
In the preparation process of foam silicone rubber, foaming agent is the principal element for determining final foamed material quality, currently, The foaming agent being commonly used in preparing foam silicone rubber mainly has blowing agent H, foaming agent OBSH and blowing agent AC.But The chemical breakdown temperature of the generally existing some problems of these foaming agents, some class foaming agents is excessively high, sudden big, causes entirely to send out Bubble process is difficult to control, and poor with the matching of vulcanizing agent.
Summary of the invention
According to the above-mentioned deficiencies of the prior art, the technical problem to be solved by the present invention is to propose a kind of foam silicone rubber hair Infusion and preparation method thereof, some or all of to overcome in background technique shortcoming.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of foam silicone rubber foaming agent, the foaming agent include following parts by weight ingredient: 5-15 parts of organic foaming agent, inorganic 10-25 parts of foaming agent, 8-20 parts of protide foaming agent, 3-9 parts of blowing promotor, 8-18 parts of film forming matter, organic foaming agent dispersion Property it is good, reaction when discharge heat, inorganic foaming agent is nontoxic, and discharge quantity is big, and the inorganic salts after reaction serve as filler, helps Need to absorb heat in the microscopic surface texture for improving rubber, and in reaction, organic and inorganic foaming agent is used in combination, has Help save the energy, promotes outgassing rate, while the protide foaming agent added plays and adjusts foaming stability, uniformity and fill When the effect of surfactant, the addition of film forming matter in order to prevent foaming agent with blowing promotor in the contact of preparation process, rise To the effect of isolation and protection.
Preferably, the foaming agent includes following parts by weight ingredient: 12 parts of organic foaming agent, 18.5 parts of inorganic foaming agent, 15.5 parts of protide foaming agent, 6 parts of blowing promotor, 15 parts of film forming matter.
Preferably, the organic foaming agent includes following parts by weight ingredient: 8-18 parts of foaming agent AIBN, foaming agent It OBSH5-10 parts, 4-8 parts of blowing agent H, 3-8 parts of blowing agent AC, is cooperated using the organic foaming agent of different decomposition temperature It uses, promotes bubbling efficiency, lower energy consumption and nucleation temperature, while promoting the matching performance of foaming agent and vulcanizing agent.
Preferably, the partial size of the inorganic foaming agent is 200-300 mesh, the NaHCO for being 1:0.3-2.5 by mass ratio3With NH4HCO3Composition, thermal decomposition temperature is low, reduces the decomposition temperature of the foaming agent of preparation, promoted preparation foaming agent decomposition temperature and The matching of curing temperature, and the gas decomposed permeability in rubber is small, is conducive to the uniformity for improving abscess.
Preferably, animal protein foaming agent and vegetalitas that the protide foaming agent is 1:0.2-0.8 by mass ratio Protein foaming agent composition, vegetable protein foaming agent shelf-stable is unlikely to deteriorate, and has an excellent blistering energy, foaming abundancy, but The stability of foam is moderate, and the foam surface intensity that animal protein foaming agent generates is very high, and foam is extremely stable, the two cooperation It uses, facilitates the foamed stability for promoting the foaming agent of preparation, while reducing the usage amount of organic foaming agent, promote preparation The environmental-protecting performance of foaming agent.
Preferably, the blowing promotor is at least two in urea, urea rouge, glycerol, ZnO, stearic acid or zinc stearate Kind, the foaming activity of organic foaming agent is improved, the foaming agent decomposition temperature of preparation is reduced, promotes the matching performance with vulcanizing agent.
Preferably, the film forming matter is sodium alginate, during the preparation process protection and buffer action, while sodium alginate Foamable reaction is carried out during the reaction, it is adhesive after promoting silicon rubber foaming, increase stretch-proof mechanical performance.
A kind of preparation method of foam silicone rubber foaming agent, specific preparation process is as follows: weighing each ingredient by formula, will have Machine foaming agent, inorganic foaming agent and protide foaming agent progress ball milling mixing are uniform, and film forming matter is added after mixing, will mix It closes object to be placed in reaction kettle, carries out supercritical CO2Pre-reaction, be then added blowing promotor, carry out supercritical CO2Reaction, must send out The blowing-agent particle of infusion particle, preparation has core-shell structure, and during use, the heat of solution of film forming matter can make to foam Auxiliary agent and organic foaming agent contact, improve foaming activity, and supercritical CO2React environmentally protective, the particle of preparation is uniform.
Preferably, the supercritical CO2Pre-reaction condition be 20-35 DEG C of temperature, pressure 8-20Mpa.
Preferably, the supercritical CO2The condition of reaction is 30-45 DEG C of temperature, pressure 15-25Mpa.
Compared with prior art, the medicine have the advantages that
1. the present invention is prepared composite foamed using organic foaming agent, inorganic foaming agent and the mutual cooperation of protide foaming agent Agent, organic foaming agent good dispersion discharge heat in reaction, and inorganic foaming agent is nontoxic, and discharge quantity is big, the nothing after reaction Machine salt serves as filler, helps to improve the microscopic surface texture of rubber, and need to absorb heat, organic and inorganic hair in reaction Infusion is used in combination, and helps to save the energy, promotes outgassing rate, while the protide foaming agent added plays adjusting blistering Stability, uniformity and the effect for serving as surfactant.
2. the present invention uses supercritical CO2The composite foamable agent with core-shell structure is prepared in reaction, in the process used In, the heat of solution of film forming matter can be such that blowing promotor and organic foaming agent contacts, and improve foaming activity, and supercritical CO2Reaction Environmentally protective, the particle of preparation is uniform, while the foaming agent of core-shell structure helps to control the uniformity of expansion rate and blistering.
3. the present invention is used in conjunction with each other using the organic foaming agent of different decomposition temperature, bubbling efficiency is promoted, lowers energy Source consumption and nucleation temperature, while promoting the matching performance of foaming agent and vulcanizing agent.
4. the present invention is used cooperatively using animal protein foaming agent and vegetable protein foaming agent, vegetable protein foaming Agent shelf-stable is unlikely to deteriorate, and has excellent blistering energy, foaming abundancy, but the stability of foam is moderate, animal protein hair The foam surface intensity that infusion generates is very high, and foam is extremely stable, and the two is used cooperatively, and facilitates the foaming agent for promoting preparation Foamed stability, while the usage amount of organic foaming agent is reduced, promote the environmental-protecting performance of the foaming agent of preparation
Specific embodiment
Below by the description to embodiment, the present invention is described in further detail by specific embodiment, with side Those skilled in the art are helped to have more complete, accurate and deep understanding to inventive concept of the invention, technical solution.
Embodiment 1
A kind of foam silicone rubber foaming agent, the foaming agent include following parts by weight ingredient: 12 parts of organic foaming agent, inorganic hair 18.5 parts of infusion, 15.5 parts of protide foaming agent, 6 parts of blowing promotor, 15 parts of film forming matter, organic foaming agent good dispersion, Heat is discharged when reaction, inorganic foaming agent is nontoxic, and discharge quantity is big, and the inorganic salts after reaction serve as filler, helps to improve The microscopic surface texture of rubber, and need to absorb heat in reaction, organic and inorganic foaming agent is used in combination, and helps to save The energy is saved, promotes outgassing rate, while the protide foaming agent added plays adjusting foaming stability, uniformity and serves as surface The effect of activating agent, film forming matter addition in order to prevent foaming agent with blowing promotor in the contact of preparation process, play isolation With the effect of protection；
Wherein, organic foaming agent includes following parts by weight ingredient: 12.5 parts of foaming agent AIBN, 7.5 parts of foaming agent OBSH, It 5 parts of blowing agent H, 5.5 parts of blowing agent AC, is used in conjunction with each other using the organic foaming agent of different decomposition temperature, promotes foaming Efficiency lowers energy consumption and nucleation temperature, while promoting the matching performance of foaming agent and vulcanizing agent；
The partial size of inorganic foaming agent is 250 mesh, the NaHCO for being 1:1.7 by mass ratio3And NH4HCO3Composition, thermal decomposition temperature It spends low, reduces the decomposition temperature of the foaming agent of preparation, promote the foaming agent decomposition temperature of preparation and the matching of curing temperature, and The gas of decomposition permeability in rubber is small, is conducive to the uniformity for improving abscess, NaHCO3Thermal decomposition temperature be 100 DEG C, The gas of generation is CO2And vapor, NH4HCO3It is gradually decomposed since 60 DEG C, the gas of generation is CO2And vapor, have It is environmentally protective, while the decomposition temperature of the composite foamable agent of preparation is reduced,
Protide foaming agent is made of the animal protein foaming agent that mass ratio is 1:0.6 and vegetable protein foaming agent, Vegetable protein foaming agent shelf-stable is unlikely to deteriorate, and has the stability of excellent blistering energy, foaming abundancy, but foam suitable In, the foam surface intensity that animal protein foaming agent generates is very high, and foam is extremely stable, and the two is used cooperatively, and helps to mention The foamed stability of the foaming agent of preparation is risen, while reducing the usage amount of organic foaming agent, promotes the environmental protection of the foaming agent of preparation Performance；
Blowing promotor is urea and stearic mixture, improves the foaming activity of organic foaming agent, reduces the hair of preparation Infusion decomposition temperature promotes the matching performance with vulcanizing agent, while stearic addition also contributes to NaHCO3Thorough decomposition；
Film forming matter is sodium alginate, during the preparation process protection and buffer action, while sodium alginate is in reaction process Middle carry out foamable reaction, it is adhesive after promoting silicon rubber foaming, increase stretch-proof mechanical performance.
A kind of preparation method of foam silicone rubber foaming agent, specific preparation process is as follows: weighing each ingredient by formula, will have Machine foaming agent, inorganic foaming agent and protide foaming agent are placed in ball mill, and ball milling is carried out at revolving speed 1000-1200r/min It is uniformly mixed, after then addition film forming matter is uniformly mixed, mixture is placed in reaction kettle, is vacuumized, is then heated Reaction kettle is passed through CO into reaction kettle to 30 DEG C2To pressure 15Mpa, supercritical CO is carried out under this state2Pre-reaction, maintain 10s is reacted, organic foaming agent and inorganic foaming agent formed film matter package, form nuclear matter, protide foaming agent is both at this time Foaming agent is surfactant again, and blowing promotor is then added into reaction kettle, then proceedes to be heated to 40 DEG C, be passed through thereto CO2Supercritical CO is carried out to 23Mpa2Reaction maintains reaction 8-12s, and blowing promotor is under the action of protide foaming agent, package Core-shell structure is formed on the surface of core, blowing rushes down pressure, and it is cooling, blowing-agent particle is obtained, the blowing-agent particle of preparation has nucleocapsid Structure, during use, the heat of solution of film forming matter can be such that blowing promotor and organic foaming agent contacts, and improve foaming and live Property, and supercritical CO2React environmentally protective, the particle of preparation is uniform.
Embodiment 2
The present embodiment is with embodiment 1, the difference is that foaming agent includes following parts by weight ingredient in the present embodiment: organic foaming 5 parts of agent, 25 parts of inorganic foaming agent, 8 parts of protide foaming agent, 3 parts of blowing promotor, 8 parts of film forming matter；
Wherein, organic foaming agent includes following parts by weight ingredient: 8 parts of foaming agent AIBN, 10 parts of foaming agent OBSH, and foaming 4 parts of agent H, 3 parts of blowing agent AC；
The partial size of inorganic foaming agent is 200 mesh, the NaHCO for being 1:0.3 by mass ratio3And NH4HCO3Composition；
Protide foaming agent is made of the animal protein foaming agent that mass ratio is 1:0.2 and vegetable protein foaming agent；
Blowing promotor is urea, urea rouge and stearic mixture.
Embodiment 3
The present embodiment is with embodiment 1, the difference is that foaming agent includes following parts by weight ingredient in the present embodiment: organic foaming 15 parts of agent, 10 parts of inorganic foaming agent, 20 parts of protide foaming agent, 9 parts of blowing promotor, 18 parts of film forming matter；
Wherein, organic foaming agent includes following parts by weight ingredient: 18 parts of foaming agent AIBN, 5 parts of foaming agent OBSH, and foaming 8 parts of agent H, 8 parts of blowing agent AC；
The partial size of inorganic foaming agent is 300 mesh, the NaHCO for being 1:2.5 by mass ratio3And NH4HCO3Composition；
Protide foaming agent is made of the animal protein foaming agent that mass ratio is 1:0.8 and vegetable protein foaming agent；
Blowing promotor is urea, urea rouge, glycerol, ZnO and stearic mixture.
Embodiment 4
The present embodiment is with embodiment 1, the difference is that supercritical CO2Pre-reaction condition be 20 DEG C of temperature, pressure 20Mpa Supercritical CO2The condition of reaction is 30 DEG C of temperature, pressure 25Mpa.
Embodiment 5
The present embodiment is with embodiment 1, the difference is that supercritical CO2Pre-reaction condition be 35 DEG C of temperature, pressure 8Mpa Supercritical CO2The condition of reaction is temperature 45 C, pressure 15Mpa.
Embodiment 6
The present embodiment is with embodiment 1, the difference is that supercritical CO2Pre-reaction condition be 20 DEG C of temperature, pressure 8Mpa Supercritical CO2The condition of reaction is 30 DEG C of temperature, pressure 15Mpa.
Foaming test is carried out to the foaming agent of embodiment 1-6 preparation, the results show that the decomposition temperature of 6 kinds of foaming agents is 95 DEG C beginning gradually carries out thermal decomposition deflation, continues to 230 DEG C, and in 145 DEG C of discharge quantity maximums, at this time with curing temperature matching degree Preferably, discharge quantity is more uniform in whole process, can control the discharge quantity of whole preparation process by controlling additive amount, have Good stability.
The present invention is exemplarily described above, it is clear that present invention specific implementation is not subject to the restrictions described above, As long as using the improvement for the various unsubstantialities that the inventive concept and technical scheme of the present invention carry out, or not improved this is sent out Bright conception and technical scheme directly apply to other occasions, within the scope of the present invention.Protection of the invention Range should be determined by the scope of protection defined in the claims.

Claims (10)

1. a kind of foam silicone rubber foaming agent, which is characterized in that the foaming agent includes following parts by weight ingredient: organic foaming agent 5- 15 parts, 10-25 parts of inorganic foaming agent, 8-20 parts of protide foaming agent, 3-9 parts of blowing promotor, 8-18 parts of film forming matter.
2. foam silicone rubber foaming agent according to claim 1, which is characterized in that the foaming agent includes following parts by weight Ingredient: 12 parts of organic foaming agent, 18.5 parts of inorganic foaming agent, 15.5 parts of protide foaming agent, 6 parts of blowing promotor, film forming matter 15 parts.
3. foam silicone rubber foaming agent according to claim 1, which is characterized in that the organic foaming agent includes following weight Amount part ingredient: 8-18 parts of foaming agent AIBN, 5-10 parts of foaming agent OBSH, 4-8 parts of blowing agent H, 3-8 parts of blowing agent AC.
4. foam silicone rubber foaming agent according to claim 1, which is characterized in that the partial size of the inorganic foaming agent is 200-300 mesh, the NaHCO for being 1:0.3-2.5 by mass ratio3And NH4HCO3Composition.
5. foam silicone rubber foaming agent according to claim 1, which is characterized in that the protide foaming agent is by mass ratio It is formed for the animal protein foaming agent and vegetable protein foaming agent of 1:0.2-0.8.
6. foam silicone rubber foaming agent according to claim 1, which is characterized in that the blowing promotor is urea, urea At least two in rouge, glycerol, ZnO, stearic acid or zinc stearate.
7. foam silicone rubber foaming agent according to claim 1, which is characterized in that the film forming matter is sodium alginate.
8. a kind of preparation method of foam silicone rubber foaming agent as claimed in claim 1 to 7, which is characterized in that specific preparation Steps are as follows: weighing each ingredient by formula, it is equal that organic foaming agent, inorganic foaming agent and protide foaming agent are carried out ball milling mixing It is even, film forming matter is added after mixing, mixture is placed in reaction kettle, carries out supercritical CO2Pre-reaction, be then added Blowing promotor carries out supercritical CO2Reaction, obtains blowing-agent particle.
9. the preparation method of foam silicone rubber foaming agent according to claim 8, which is characterized in that the supercritical CO2 Pre-reaction condition be 20-35 DEG C of temperature, pressure 8-20Mpa.
10. the preparation method of foam silicone rubber foaming agent according to claim 8, which is characterized in that described is overcritical CO2The condition of reaction is 30-45 DEG C of temperature, pressure 15-25Mpa.
CN201811226268.1A 2018-10-18 2018-10-18 A kind of foam silicone rubber foaming agent and preparation method thereof Pending CN109593225A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811226268.1A CN109593225A (en) 2018-10-18 2018-10-18 A kind of foam silicone rubber foaming agent and preparation method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811226268.1A CN109593225A (en) 2018-10-18 2018-10-18 A kind of foam silicone rubber foaming agent and preparation method thereof

Publications (1)

Publication Number Publication Date
CN109593225A true CN109593225A (en) 2019-04-09

Family

ID=65958268

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811226268.1A Pending CN109593225A (en) 2018-10-18 2018-10-18 A kind of foam silicone rubber foaming agent and preparation method thereof

Country Status (1)

Country Link
CN (1) CN109593225A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110103377A (en) * 2019-05-12 2019-08-09 上海精塑生物科技有限公司 A kind of manufacture craft of lightweight justice cream
CN113308118A (en) * 2021-04-08 2021-08-27 苏州歌诗夫新材料有限公司 Environment-friendly foaming flame-retardant silicon rubber material and preparation method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110103377A (en) * 2019-05-12 2019-08-09 上海精塑生物科技有限公司 A kind of manufacture craft of lightweight justice cream
CN113308118A (en) * 2021-04-08 2021-08-27 苏州歌诗夫新材料有限公司 Environment-friendly foaming flame-retardant silicon rubber material and preparation method thereof

Similar Documents

Publication Publication Date Title
CN100422263C (en) Obturator-type silicone rubber foam material, and its preparing method and use
CN107474524B (en) Polyvinyl alcohol fiber reinforced polyurethane composite acoustic material and preparation method thereof
CN101781464A (en) Preparation method of silicon rubber foam material
CN101717514B (en) Modified phenolic resin, foamed material thereof and method for preparing same
CN104059242B (en) Preparation method of self-adhesion silicon rubber foam material
CN106009026B (en) A kind of foaming agent, preparation method and application
CN109370006A (en) A kind of high apparent mass blow molding fretting map car duct material and preparation method thereof
CN109593225A (en) A kind of foam silicone rubber foaming agent and preparation method thereof
CN102690519A (en) Continuous silicon rubber foam plate with low compression stress relaxation and preparation method of continuous silicon rubber foam plate
WO2021057846A1 (en) Aerogel eva light-weight breathable and thermal insulation composite material and preparation method therefor
CN104788967A (en) Silicone rubber microporous foam material adopting mixed cellular structure and preparation method of silicone rubber microporous foam material
CN110028763A (en) The preparation method of low-density high magnification epoxy resin poromerics
CN104017369A (en) Preparation method of silicon rubber foam material with high tensile strength
CN109265112A (en) A kind of low water suction foamed cement
JP4332587B2 (en) INORGANIC FOAMING PROMOTING AUXILY, PROCESS FOR PRODUCING THE SAME
CN107513267B (en) Ethylene propylene diene monomer rubber polyurethane composite acoustic packaging material and preparation method thereof
CN109943193A (en) Composite environmental-friendly coating based on diatomite modified and preparation method thereof
CN107722229A (en) A kind of insulating foam and preparation method thereof
CN114133700A (en) Efficient light electromagnetic absorption material with closed pore structure and preparation method thereof
CN113462003A (en) Foaming agent compound for low-temperature decomposition of expanded rubber and preparation method thereof
CN103205012A (en) Composite foaming agent for sponge rubber
CN106398165A (en) Environment-friendly foamed plastic
CN108127997B (en) High-strength polypropylene foam board and preparation method thereof
CN112724454A (en) Environment-friendly chemical foaming agent and preparation method thereof
US2885456A (en) Cold coagulable foamed rubber latex and sponge therefrom and process for making same

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20190409

WD01 Invention patent application deemed withdrawn after publication