CN109054024A - A kind of preparation method of the organic foam stabilizer of polyester form preparation - Google Patents
A kind of preparation method of the organic foam stabilizer of polyester form preparation Download PDFInfo
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- CN109054024A CN109054024A CN201810901361.1A CN201810901361A CN109054024A CN 109054024 A CN109054024 A CN 109054024A CN 201810901361 A CN201810901361 A CN 201810901361A CN 109054024 A CN109054024 A CN 109054024A
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08G—MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONS ONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
- C08G77/00—Macromolecular compounds obtained by reactions forming a linkage containing silicon with or without sulfur, nitrogen, oxygen or carbon in the main chain of the macromolecule
- C08G77/42—Block-or graft-polymers containing polysiloxane sequences
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B31/00—Preparation of derivatives of starch
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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
- C08J9/0014—Use of organic additives
- C08J9/0042—Use of organic additives containing silicon
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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
- C08J2367/00—Characterised by the use of polyesters obtained by reactions forming a carboxylic ester link in the main chain; Derivatives of such polymers
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- Polymers & Plastics (AREA)
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- Engineering & Computer Science (AREA)
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- Life Sciences & Earth Sciences (AREA)
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- Polyesters Or Polycarbonates (AREA)
- Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)
Abstract
The invention belongs to macromolecular stabilizer agent fields, and in particular to a kind of preparation method of the organic foam stabilizer of polyester form preparation；The composition of the organic foam stabilizer of a kind of polyester form preparation are as follows: dimethyl two silanol, 5-10 part of starch, 2-5 part of joint agent, 2-4 part of regulator, 4-6 part of chain extender, 1-2 part of initiator, 60-100 part of solvent of the mass fraction for 30-40 parts；Foam stabiliser prepared by the present invention is by being reacted to obtain the silicon ether containing great amount of hydroxy group using silanol, starch and other chain extenders, then it is polymerize using step-reaction polymerization, obtain the organic foam stabilizer containing great amount of hydroxy group, certain hinge reaction can occur with polyurethane for the substance, pore wall strength can effectively be enhanced, prevent bubbles burst from forming air pocket, guarantee makes it generate uniform abscess, while can effectively ensure that the mechanical property of polyester form.
Description
Technical field
The invention belongs to macromolecular stabilizer agent fields, and in particular to a kind of silicon foams of polyester form preparation are stable
The preparation method of agent.
Background technique
Organic foam stabilizer is a kind of object largely applied in hard or flexible polyurethane material synthesis process
Matter, wide range of applications.
Chinese patent application CN101367996B discloses one kind can be in the preparation of the flexible polyurethane foams of thermal maturation
Used in thermal maturation flexible polyurethane foams stabilizer low viscosity water solution, wherein the flexibel polyurethane of the thermal maturation
The low viscosity water solution of foam stabiliser includes following component: the polyether silicone of >=40 weight % to≤70 weight %, >=
The organic solvent of 0.5 weight the % extremely organic surface active agent of≤20 weight %, the water of >=10 weight %, >=0 weight %, selection
The weight fraction of above-mentioned each component so that the flexible polyurethane foams stabiliser solution based on the thermal maturation, each component it is total
Weight fraction is no more than 100 weight %, and the walls structural behaviour of the foamed product of this method preparation is poor.
Chinese patent application CN CN101096425A discloses a kind of production hard polyaminoester or polyisocyanurate foam
Method, by by isocyanates and polyalcohol in urethanes and/or isocyanurate catalyst, water, optional
Other foaming agents, optional fire retardant and other optional additives (such as: filler, emulsifier, pure organic stabilizer and table
Face activating agent, thinner, dyestuff, antioxidant, UV stabilizer, antistatic agent) in the presence of reacted, used have general formula
(I) the walls structural behaviour of foam stabiliser, the foamed product of this method preparation is poor.
For above-mentioned there are problem, the preparation method for researching and developing a kind of organic foam stabilizer of polyester form preparation is come
Meeting the market demand seems even more important.
Summary of the invention
It is prepared by the present invention by utilizing silanol, starch and other chain extenders in order to achieve the purpose that in background technique
It is reacted to obtain the silicon ether containing great amount of hydroxy group, is then polymerize using step-reaction polymerization, obtained containing great amount of hydroxy group
Certain hinge reaction can occur with polyurethane, can effectively enhance pore wall strength for organic foam stabilizer, the substance,
Prevent bubbles burst from forming air pocket, guarantee makes it generate uniform abscess, while can effectively ensure that the mechanics of polyester form
Performance.
What the present invention realized by the following technical solutions:
A kind of a kind of preparation method of the organic foam stabilizer of polyester form preparation, it is characterised in that polyester bubble
The composition of the organic foam stabilizer of foam preparation are as follows: mass fraction be 30-40 parts two silanol of dimethyl, 5-10 parts of shallow lake
Powder, 2-5 parts of joint agent, 2-4 parts of regulator, 4-6 parts of chain extender, 1-2 parts of initiator, 60-100 parts of solvent.
Further, a kind of organic foam stabilizer of polyester form preparation the preparation method comprises the following steps: will reaction
Kettle temperature degree maintains 60-70 DEG C, and mechanical agitator revolving speed is 200-300rpm, and 60-100 parts of solvent is added into reaction kettle,
After carrying out constant temperature 10-20 minutes, 5-10 parts of starch is added in reaction kettle, is stirred 10-20 minutes, its is evenly dispersed
In a solvent, then successively 30-40 parts of two silanol of dimethyl, 2-5 parts of joint agent, 2-4 parts of regulator are being added instead
It answers in kettle, 4-6 parts of chain extender will be added in the constant pressure dropping point pipe on reaction kettle one side, it is when starting to react with the speed of 2s/ drop
It is added dropwise, 1-2 parts of initiator is in addition added in a constant pressure buret, it is carried out when starting to react with the speed of 8s/ drop
It is added dropwise, after being added dropwise completely, 3-5 parts of catalyst is added dropwise with the speed of 4s/ drop, after being added dropwise completely, keep this
It is reacted 10 hours under part, then temperature is increased 3-5 DEG C, reacted 8 hours, be spray-dried the substance after fully reacting,
Drying temperature is controlled at 60 DEG C, obtained object is dried, the substance obtained after drying is exactly having for polyester form preparation
Machine silicon foam stabilizer.
Further, the joint agent are as follows: 10-20 parts of IPDI and 4-10 parts of dicyano first is added in a kettle
Then by mixing velocity control in reaction kettle in 300-400rpm 5-10 parts of glucose, 1-2 parts of initiator is being added in alkane,
Under the conditions of 50-60 DEG C, the substance that reaction is cooled to room temperature after 2-3 hours, which is exactly joint agent.
Further, the initiator are as follows: by 2-5 parts, substance that 3-5 parts of AIBN is obtained after mixing,
The substance is exactly initiator.
Further, the regulator are as follows: by 3-5 parts of ammonium di-hydrogen phosphate, 2-3 parts of sodium carbonate, 1-2 parts of stearic acid
Zinc, 2-3 parts of calcium stearate is added in reaction kettle, is reacted under the conditions of 30-50 DEG C, room is cooled to after fully reacting
Temperature, the substance obtained after product is crushed, the substance are exactly regulator.
Further, the solvent are as follows: carry out the carbon tetrachloride, hexamethylene, ether of 1-2:4-5:5-8 after mixing
Obtained substance, the substance are exactly solvent.
Further, the chain extender agent are as follows: by 4-8 parts of phthalic anhydride, 2-5 parts of isophthalic acid acid anhydride, 10-20
The solution that the solvent of part is prepared after mixing, which is exactly catalyst.
Further, the reaction condition in the claim 2 are as follows: entire reaction all carries out in anhydrous conditions.
Beneficial to benefit
It is prepared by the present invention by being reacted to obtain the silicon ether containing great amount of hydroxy group using silanol, starch and other chain extender,
Then it is polymerize using step-reaction polymerization, obtains the organic foam stabilizer containing great amount of hydroxy group, which can be with
Certain hinge reaction occurs for polyurethane, can effectively enhance pore wall strength, prevent bubbles burst from forming air pocket, guarantee to make
It generates uniform abscess, while can effectively ensure that the mechanical property of polyester form.
Specific embodiment
In order to keep the purpose of the present invention, technical scheme and beneficial effects clearer, below in conjunction with experimental data, to this
The preferred embodiment of invention is described in detail, to facilitate the technical staff to understand.
Embodiment 1
A kind of a kind of preparation method of the organic foam stabilizer of polyester form preparation, which is characterized in that polyester
The organic foam stabilizer of foam preparation the preparation method comprises the following steps: temperature of reaction kettle is maintained 70 DEG C, mechanical agitator turns
Speed is 300rpm, and 100 parts of solvent is added into reaction kettle, carries out constant temperature after twenty minutes, and reaction kettle is added in 10 parts of starch
In, it is stirred 20 minutes, its is evenly dispersed in a solvent, then successively by 30 parts of two silanol of dimethyl, 5 parts of connection
Mixture, 4 parts of regulator are added in reaction kettle, 6 parts of chain extender will be added in the constant pressure dropping point pipe on reaction kettle one side, start anti-
Seasonable its is added dropwise with the speed of 2s/ drop, and 2 parts of initiator is in addition added in a constant pressure buret, when starting to react its
It is added dropwise with the speed of 8s/ drop, after being added dropwise completely, 5 parts of catalyst is added dropwise with the speed of 4s/ drop, wait be added dropwise
Completely after, keep under this condition react 10 hours, then by temperature increase 5 DEG C, react 8 hours, after fully reacting by the substance into
Row spray drying, drying temperature control at 60 DEG C, obtained object are dried, and the substance obtained after drying is exactly polyester bubble
The organic foam stabilizer of foam preparation.
Further, the joint agent are as follows: 20 parts of IPDI and 10 part of dicyanomethane is added in a kettle, it will be anti-
Mixing velocity control in kettle is answered 5 parts of glucose, 1 part of initiator then to be added, under the conditions of 60 DEG C, instead in 300rpm
The substance being cooled to room temperature after answering 2 hours, the substance are exactly joint agent.
Further, the initiator are as follows: by 2 parts, substance that 5 parts of AIBN is obtained after mixing, the object
Matter is exactly initiator.
Further, the regulator are as follows: by 5 parts of ammonium di-hydrogen phosphate, 2 parts of sodium carbonate, 2 parts of zinc stearate, 3 parts
Calcium stearate be added reaction kettle in, reacted under the conditions of 30 DEG C, room temperature be cooled to after fully reacting, by product into
The substance that row obtains after crushing, which is exactly regulator.
Further, the solvent are as follows: obtained the carbon tetrachloride, hexamethylene, ether of 2:4:8 after mixing
Substance, the substance are exactly solvent.
Further, the chain extender agent are as follows: by 8 parts of phthalic anhydride, 5 parts of isophthalic acid acid anhydride, 10 parts molten
The solution that agent is prepared after mixing, the substance are exactly catalyst.
Further, the reaction condition in the claim 2 are as follows: entire reaction all carries out in anhydrous conditions.
Embodiment 2
A kind of a kind of preparation method of the organic foam stabilizer of polyester form preparation, which is characterized in that polyester
The organic foam stabilizer of foam preparation the preparation method comprises the following steps: temperature of reaction kettle is maintained 60 DEG C, mechanical agitator turns
Speed is 300rpm, and 100 parts of solvent is added into reaction kettle, and after carrying out constant temperature 15 minutes, reaction kettle is added in 10 parts of starch
In, it is stirred 15 minutes, its is evenly dispersed in a solvent, then successively by 30 parts of two silanol of dimethyl, 5 parts of connection
Mixture, 2 parts of regulator are added in reaction kettle, 4 parts of chain extender will be added in the constant pressure dropping point pipe on reaction kettle one side, start anti-
Seasonable its is added dropwise with the speed of 2s/ drop, and 1 part of initiator is in addition added in a constant pressure buret, when starting to react its
It is added dropwise with the speed of 8s/ drop, after being added dropwise completely, 5 parts of catalyst is added dropwise with the speed of 4s/ drop, wait be added dropwise
Completely after, keep under this condition react 10 hours, then by temperature increase 5 DEG C, react 8 hours, after fully reacting by the substance into
Row spray drying, drying temperature control at 60 DEG C, obtained object are dried, and the substance obtained after drying is exactly polyester bubble
The organic foam stabilizer of foam preparation.
Further, the joint agent are as follows: 10 parts of IPDI and 10 part of dicyanomethane is added in a kettle, it will be anti-
Mixing velocity control in kettle is answered 5 parts of glucose, 2 parts of initiator then to be added, under the conditions of 55 DEG C, instead in 350rpm
The substance being cooled to room temperature after answering 2 hours, the substance are exactly joint agent.
Further, the initiator are as follows: by 5 parts, substance that 5 parts of AIBN is obtained after mixing, the object
Matter is exactly initiator.
Further, the regulator are as follows: by 3 parts of ammonium di-hydrogen phosphate, 3 parts of sodium carbonate, 2 parts of zinc stearate, 3 parts
Calcium stearate be added reaction kettle in, reacted under the conditions of 30-50 DEG C, room temperature be cooled to after fully reacting, will be produced
The substance that object obtains after being crushed, the substance are exactly regulator.
Further, the solvent are as follows: obtained the carbon tetrachloride, hexamethylene, ether of 2:5:8 after mixing
Substance, the substance are exactly solvent.
Further, the chain extender agent are as follows: by 8 parts of phthalic anhydride, 2 parts of isophthalic acid acid anhydride, 20 parts molten
The solution that agent is prepared after mixing, the substance are exactly catalyst.
Further, the reaction condition in the claim 2 are as follows: entire reaction all carries out in anhydrous conditions.
Embodiment 3
A kind of a kind of preparation method of the organic foam stabilizer of polyester form preparation, which is characterized in that polyester
The organic foam stabilizer of foam preparation the preparation method comprises the following steps: temperature of reaction kettle is maintained 65 DEG C, mechanical agitator turns
Speed is 250rpm, and 100 parts of solvent is added into reaction kettle, and after carrying out constant temperature 15 minutes, reaction kettle is added in 10 parts of starch
In, it is stirred 15 minutes, its is evenly dispersed in a solvent, then successively by 40 parts of two silanol of dimethyl, 5 parts of connection
Mixture, 2 parts of regulator are added in reaction kettle, 6 parts of chain extender will be added in the constant pressure dropping point pipe on reaction kettle one side, start anti-
Seasonable its is added dropwise with the speed of 2s/ drop, and 2 parts of initiator is in addition added in a constant pressure buret, when starting to react its
It is added dropwise with the speed of 8s/ drop, after being added dropwise completely, 5 parts of catalyst is added dropwise with the speed of 4s/ drop, wait be added dropwise
Completely after, keep under this condition react 10 hours, then by temperature increase 5 DEG C, react 8 hours, after fully reacting by the substance into
Row spray drying, drying temperature control at 60 DEG C, obtained object are dried, and the substance obtained after drying is exactly polyester bubble
The organic foam stabilizer of foam preparation.
Further, the joint agent are as follows: 10 parts of IPDI and 10 part of dicyanomethane is added in a kettle, it will be anti-
Mixing velocity control in kettle is answered 5 parts of glucose, 2 parts of initiator then to be added, under the conditions of 50 DEG C, instead in 300rpm
The substance being cooled to room temperature after answering 2 hours, the substance are exactly joint agent.
Further, the initiator are as follows: by 5 parts, substance that 3 parts of AIBN is obtained after mixing, the object
Matter is exactly initiator.
Further, the regulator are as follows: by 5 parts of ammonium di-hydrogen phosphate, 2 parts of sodium carbonate, 1 part of zinc stearate, 2 parts
Calcium stearate be added reaction kettle in, reacted under the conditions of 50 DEG C, room temperature be cooled to after fully reacting, by product into
The substance that row obtains after crushing, which is exactly regulator.
Further, the solvent are as follows: obtained the carbon tetrachloride, hexamethylene, ether of 2:5:8 after mixing
Substance, the substance are exactly solvent.
Further, the chain extender agent are as follows: by 8 parts of phthalic anhydride, 5 parts of isophthalic acid acid anhydride, 20 parts molten
The solution that agent is prepared after mixing, the substance are exactly catalyst.
Further, the reaction condition in the claim 2 are as follows: entire reaction all carries out in anhydrous conditions.
Embodiment 4
A kind of a kind of preparation method of the organic foam stabilizer of polyester form preparation, which is characterized in that polyester
The organic foam stabilizer of foam preparation the preparation method comprises the following steps: temperature of reaction kettle is maintained 60 DEG C, mechanical agitator turns
Speed is 300rpm, and 80 parts of solvent is added into reaction kettle, carries out constant temperature after ten minutes, and reaction kettle is added in 10 parts of starch
In, it is stirred 10 minutes, its is evenly dispersed in a solvent, then successively by 40 parts of two silanol of dimethyl, 2 parts of connection
Mixture, 2 parts of regulator are added in reaction kettle, 4 parts of chain extender will be added in the constant pressure dropping point pipe on reaction kettle one side, start anti-
Seasonable its is added dropwise with the speed of 2s/ drop, and 2 parts of initiator is in addition added in a constant pressure buret, when starting to react its
It is added dropwise with the speed of 8s/ drop, after being added dropwise completely, 5 parts of catalyst is added dropwise with the speed of 4s/ drop, wait be added dropwise
Completely after, keep under this condition react 10 hours, then by temperature increase 3 DEG C, react 8 hours, after fully reacting by the substance into
Row spray drying, drying temperature control at 60 DEG C, obtained object are dried, and the substance obtained after drying is exactly polyester bubble
The organic foam stabilizer of foam preparation.
Further, the joint agent are as follows: 10 parts of IPDI and 4 part of dicyanomethane is added in a kettle, it will be anti-
Mixing velocity control in kettle is answered 6 parts of glucose, 2 parts of initiator then to be added, under the conditions of 50 DEG C, instead in 300rpm
The substance being cooled to room temperature after answering 2 hours, the substance are exactly joint agent.
Further, the initiator are as follows: by 5 parts, substance that 5 parts of AIBN is obtained after mixing, the object
Matter is exactly initiator.
Further, the regulator are as follows: by 5 parts of ammonium di-hydrogen phosphate, 3 parts of sodium carbonate, 1 part of zinc stearate, 2 parts
Calcium stearate be added reaction kettle in, reacted under the conditions of 50 DEG C, room temperature be cooled to after fully reacting, by product into
The substance that row obtains after crushing, which is exactly regulator.
Further, the solvent are as follows: obtained the carbon tetrachloride, hexamethylene, ether of 2:4:8 after mixing
Substance, the substance are exactly solvent.
Further, the chain extender agent are as follows: by 8 parts of phthalic anhydride, 2 parts of isophthalic acid acid anhydride, 10-20 parts
The solution that solvent is prepared after mixing, the substance are exactly catalyst.
Further, the reaction condition in the claim 2 are as follows: entire reaction all carries out in anhydrous conditions.
Experimental analysis:
1, pore-size distribution detects
The similar stabilizer that the embodiment 1-4 stabilizer prepared and market are bought, is added in polyester and carries out, then test its hole
Diameter distribution, result are as shown in the table:
As seen from the above table, stabilizer pore-size distribution prepared by the present invention is between 0.1-0.3mm, and the similar stabilization of market purchase
For agent pore-size distribution between 0.1-1mm, pore-size distribution is more wide, is three times of the invention or more, illustrates that its pore-forming is uneven,
And pore-size distribution of the invention is more narrow, the bubble for illustrating that it is formed is more uniform.
Finally, it is stated that preferred embodiment above is only used to illustrate the technical scheme of the present invention rather than limits, although logical
It crosses above preferred embodiment the present invention is described in detail, however, those skilled in the art should understand that, can be
Various changes are made to it in form and in details, without departing from defined by claims of the present invention.
Claims (8)
1. a kind of preparation method of the organic foam stabilizer of polyester form preparation, it is characterised in that a kind of polyester
The composition of the organic foam stabilizer of foam preparation are as follows: dimethyl two silanol that mass fraction is 30-40 parts, 5-10 parts
Starch, 2-5 parts of joint agent, 2-4 parts of regulator, 4-6 parts of chain extender, 1-2 parts of initiator, 60-100 parts of solvent.
2. a kind of preparation method of the organic foam stabilizer of polyester form preparation according to claim 1, special
Sign is, a kind of organic foam stabilizer of polyester form preparation the preparation method comprises the following steps: temperature of reaction kettle is tieed up
It holds at 60-70 DEG C, mechanical agitator revolving speed is 200-300rpm, and 60-100 parts of solvent is added into reaction kettle, carries out constant temperature
After 10-20 minutes, 5-10 parts of starch is added in reaction kettle, is stirred 10-20 minutes, is dispersed in solvent
In, then successively 30-40 parts of two silanol of dimethyl, 2-5 parts of joint agent, 2-4 parts of regulator are being added in reaction kettle,
4-6 parts of chain extender will be added in the constant pressure dropping point pipe on reaction kettle one side, it is dripped when starting to react with the speed of 2s/ drop
Adding, 1-2 parts of initiator is in addition added in a constant pressure buret, it is added dropwise when starting to react with the speed of 8s/ drop, to
After being added dropwise completely, 3-5 parts of catalyst is added dropwise with the speed of 4s/ drop, after being added dropwise completely, holding is reacted under this condition
10 hours, then temperature is increased 3-5 DEG C, it reacts 8 hours, is spray-dried the substance after fully reacting, drying temperature
Control dries obtained object, the substance obtained after drying is exactly the silicon foams of polyester form preparation at 60 DEG C
Stabilizer.
3. a kind of preparation method of the organic foam stabilizer of polyester form preparation according to claim 1, special
Sign is, the joint agent are as follows: 10-20 parts of IPDI and 4-10 parts of dicyanomethane is added in a kettle, will react
In kettle then in 300-400rpm 5-10 parts of glucose, 1-2 parts of initiator is being added, at 50-60 DEG C in mixing velocity control
Under the conditions of, the substance that reaction is cooled to room temperature after 2-3 hours, which is exactly joint agent.
4. a kind of preparation method of the organic foam stabilizer of polyester form preparation according to claim 1, special
Sign is, the initiator are as follows: by 2-5 parts, substance that 3-5 parts of AIBN is obtained after mixing, the substance is just
It is initiator.
5. a kind of preparation method of the organic foam stabilizer of polyester form preparation according to claim 1, special
Sign is, the regulator are as follows: by 3-5 parts of ammonium di-hydrogen phosphate, 2-3 parts of sodium carbonate, 1-2 parts of zinc stearate, 2-3 parts
Calcium stearate be added reaction kettle in, reacted under the conditions of 30-50 DEG C, room temperature be cooled to after fully reacting, will be produced
The substance that object obtains after being crushed, the substance are exactly regulator.
6. a kind of preparation method of the organic foam stabilizer of polyester form preparation according to claim 1, special
Sign is, the solvent are as follows: the object for being obtained the carbon tetrachloride, hexamethylene, ether of 1-2:4-5:5-8 after mixing
Matter, the substance are exactly solvent.
7. a kind of preparation method of the organic foam stabilizer of polyester form preparation according to claim 1, special
Sign is, the chain extender agent are as follows: by 4-8 parts of phthalic anhydride, 2-5 parts of isophthalic acid acid anhydride, 10-20 parts of solvent
The solution prepared after mixing, the substance are exactly catalyst.
8. a kind of preparation method of the organic foam stabilizer of polyester form preparation according to claim 1, special
Sign is, the reaction condition in the claim 2 are as follows: entire reaction all carries out in anhydrous conditions.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112191272A (en) * | 2020-09-29 | 2021-01-08 | 苏州思德新材料科技有限公司 | Organosilicon foam catalyst and preparation method thereof |
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