CN112191272A - Organosilicon foam catalyst and preparation method thereof - Google Patents

Organosilicon foam catalyst and preparation method thereof Download PDF

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Publication number
CN112191272A
CN112191272A CN202011047312.XA CN202011047312A CN112191272A CN 112191272 A CN112191272 A CN 112191272A CN 202011047312 A CN202011047312 A CN 202011047312A CN 112191272 A CN112191272 A CN 112191272A
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parts
stirring
polymer
surfactant
foam catalyst
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林斌
梁丹丹
孙路遥
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Siltech New Materials Corp
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Siltech New Materials Corp
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J31/00—Catalysts comprising hydrides, coordination complexes or organic compounds
    • B01J31/02—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides
    • B01J31/06—Catalysts comprising hydrides, coordination complexes or organic compounds containing organic compounds or metal hydrides containing polymers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J35/00—Catalysts, in general, characterised by their form or physical properties
    • B01J35/30—Catalysts, in general, characterised by their form or physical properties characterised by their physical properties
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J37/00—Processes, in general, for preparing catalysts; Processes, in general, for activation of catalysts
    • B01J37/02—Impregnation, coating or precipitation
    • B01J37/03—Precipitation; Co-precipitation
    • B01J37/031—Precipitation
    • 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
    • C08J9/0061—Working-up of macromolecular substances to porous or cellular articles or materials; After-treatment thereof characterized by the use of several polymeric components
    • 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
    • C08J9/0095—Mixtures of at least two compounding ingredients belonging to different one-dot groups
    • 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
    • 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
    • C08J2403/00—Characterised by the use of starch, amylose or amylopectin or of their derivatives or degradation products
    • C08J2403/02—Starch; Degradation products thereof, e.g. dextrin

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Health & Medical Sciences (AREA)
  • Medicinal Chemistry (AREA)
  • Polymers & Plastics (AREA)
  • Silicon Polymers (AREA)
  • Manufacture Of Porous Articles, And Recovery And Treatment Of Waste Products (AREA)

Abstract

The invention discloses an organosilicon foam catalyst and a preparation method thereof, belonging to the field of catalyst preparation. An organosilicon foam catalyst comprises the following components in parts by weight: 50-70 parts of polysiloxane; 10-30 parts of hydrogen peroxide; 5-10 parts of an acidic solution; 1-5 parts of ammonium bromide; 1-3 parts of sodium hydroxide; 1-3 parts of potassium permanganate; 5-8 parts of starch; 1-2 parts of a surfactant; 5-8 parts of acrylate; the surfactant is one or more of stearic acid, dialkyl sodium benzenesulfonate, quaternary ammonium compound, amino acid type, and polysorbate; the invention can effectively remove the acidity in the catalyst, avoids the harm to human bodies caused by long-time use, has stable effect, does not continuously reduce the catalytic activity after long-time use, and has convenient preparation, low cost and high efficiency.

Description

Organosilicon foam catalyst and preparation method thereof
Technical Field
The invention relates to the technical field of catalyst preparation, in particular to an organosilicon foam catalyst and a preparation method thereof.
Background
Organosilicon, i.e. organosilicon compounds, are compounds containing Si-C bonds and having at least one organic group directly bonded to a silicon atom, and conventionally, compounds in which organic groups are bonded to silicon atoms through oxygen, sulfur, nitrogen, etc. are also commonly used as organosilicon compounds, and organosilicon foams are foams having a basic structure of polysiloxane, and the organosilicon foams not only have the excellent properties of organosilicon materials, but also have the excellent physical properties of foams such as mechanical vibration absorption, etc., and are high-performance flexible polymer foams having good application prospects.
At present, the catalytic activity of the organosilicon foam catalyst on the market is continuously reduced along with the reaction time, and the organosilicon foam catalyst has strong acidity, so that the organosilicon foam catalyst can cause certain damage to human bodies after being used and contacted for a long time, and the effect is correspondingly reduced, so that the currently known organosilicon foam catalyst cannot be practically applied.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides an organosilicon foam catalyst and a preparation method thereof.
In order to achieve the purpose, the invention adopts the following technical scheme:
an organosilicon foam catalyst comprises the following components in parts by weight:
50-70 parts of polysiloxane;
10-30 parts of hydrogen peroxide;
5-10 parts of an acidic solution;
1-5 parts of ammonium bromide;
1-3 parts of sodium hydroxide;
1-3 parts of potassium permanganate;
5-8 parts of starch;
1-2 parts of a surfactant;
5-8 parts of acrylate.
Preferably, the surfactant is one or more of stearic acid, dialkyl sodium benzene sulfonate, quaternary ammonium compound, amino acid type and polysorbate.
A preparation method adopting an organosilicon foam catalyst comprises the following operation steps:
s1, adding polysiloxane in a certain mass part into a reaction kettle, then sequentially adding an acidic solution and hydrogen peroxide, and stirring uniformly;
s2, adding ammonium bromide and sodium hydroxide into the reaction kettle, and continuously stirring uniformly to obtain liquid;
s3, heating and stirring the liquid in the reaction kettle, and naturally cooling the liquid to obtain a first polymer;
s4, filtering the polymer, and performing chemical foaming treatment to obtain an organosilicon foam material;
s5, adding the organic silicon foam material into a stirring tank, then sequentially adding potassium permanganate and a surfactant into the stirring tank, simultaneously heating and uniformly stirring;
s6, adding starch into the stirring tank, uniformly stirring again, and carrying out polymerization reaction to obtain a second polymer;
s7, precipitating the second polymer and then drying to obtain the required organosilicon foam catalyst.
Preferably, the stirring speed in step S1 and step S2 is 200-500r/min, and the stirring time is 10-15 min.
Preferably, the temperature of the heated-up temperature in step S3 is 70 to 90 ℃ and the temperature after the cooling is 10 to 30 ℃.
Preferably, the stirring speed in step S3 is 50-150 r/min.
Preferably, the temperature raising in step S5 is 70-90 ℃, the stirring speed is 50-80r/min, and the stirring time is 5-8 min.
Preferably, the stirring speed in step S6 is 200-300r/min, and the stirring time is 20-40 min.
Preferably, the stirring operation in step S6 is performed in a sealed environment.
Preferably, the precipitation time in step S7 is 3-5h, and the drying method is evaporation compression by using a rotary evaporator.
Compared with the prior art, the invention provides an organosilicon foam catalyst and a preparation method thereof, and the organosilicon foam catalyst has the following beneficial effects:
1. the preparation method of the organic silicon foam catalyst comprises the steps of firstly adding polysiloxane in a certain mass part into a reaction kettle, then sequentially adding starch, acidic solution and hydrogen peroxide, stirring uniformly, then adding ammonium bromide and sodium hydroxide into the reaction kettle, and continuously stirring uniformly to obtain liquid, wherein the hydrogen peroxide is a strong oxidant, even contains a part of carcinogenic substances, is matched with the acidic solution for use, can neutralize harmful substances in the hydrogen peroxide to ensure the quality of the prepared catalyst, secondly, the added ammonium bromide and sodium hydroxide are alkaline substances, can neutralize a part of acidity in the acidic solution to reduce corrosivity, and the ammonium bromide has micro-hygroscopicity, can absorb moisture in air, ensures a good preparation environment, secondly, both the ammonium bromide and the sodium hydroxide have hydroscopic property, and can conveniently carry out subsequent operations such as precipitation drying and the like, saving time and improving efficiency, then heating and stirring the liquid in the reaction kettle to naturally cool the liquid to obtain a first polymer, heating the liquid to conveniently mix and neutralize the first polymer, filtering the polymer, performing chemical foaming treatment to obtain an organic silicon foam material, adding the organic silicon foam material into a stirring tank, then potassium permanganate and a surfactant are sequentially added into the stirring tank, the potassium permanganate and the surfactant can eliminate toxic substances in the organic silicon foam, thereby avoiding the damage to human body after long-time use and contact, the surfactant can better mix all parts, simultaneously the temperature is raised, the mixture is uniformly stirred, the starch is added into the stirring tank and then is uniformly stirred again, and then carrying out polymerization reaction to obtain a second polymer, wherein the starch can conveniently remove moisture, and the second polymer is precipitated and dried to obtain the required organic silicon foam catalyst.
The part which is not involved in the device is the same as the prior art or can be realized by the prior art, the invention can effectively remove the acidity in the catalyst, avoid the harm to human body caused by long-time use, has stable effect, can not continuously reduce the catalytic activity after long-time use, and has convenient manufacture, low cost and high efficiency.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", etc. are used merely for convenience of description and for simplicity of description, and thus are not to be construed as limiting the present invention.
Example 1:
an organosilicon foam catalyst comprises the following components in parts by weight:
70 parts of polysiloxane;
10 parts of hydrogen peroxide;
5 parts of an acidic solution;
1 part of ammonium bromide;
1 part of sodium hydroxide;
1 part of potassium permanganate;
6 parts of starch;
1 part of surfactant;
5 parts of acrylate.
Wherein the surfactant is stearic acid.
A preparation method adopting an organosilicon foam catalyst comprises the following operation steps:
s1, adding polysiloxane in a certain mass part into a reaction kettle, then sequentially adding an acidic solution and hydrogen peroxide, and stirring uniformly;
s2, adding ammonium bromide and sodium hydroxide into the reaction kettle, and continuously stirring uniformly to obtain liquid;
s3, heating and stirring the liquid in the reaction kettle, and naturally cooling the liquid to obtain a first polymer;
s4, filtering the polymer, and performing chemical foaming treatment to obtain an organosilicon foam material;
s5, adding the organic silicon foam material into a stirring tank, then sequentially adding potassium permanganate and a surfactant into the stirring tank, simultaneously heating and uniformly stirring;
s6, adding starch into the stirring tank, uniformly stirring again, and carrying out polymerization reaction to obtain a second polymer;
s7, precipitating the second polymer and then drying to obtain the required organosilicon foam catalyst.
The stirring speed in step S1 and the stirring time in step S2 are both 200r/min and 10 min.
The temperature at which the temperature was raised in step S3 was 70 ℃, and the temperature after the self-cooling was 15 ℃.
The stirring speed in step S3 was 50 r/min.
The temperature of the temperature rise in the step S5 is 70 ℃, the stirring speed is 50r/min, and the stirring time is 5 min.
In step S6, the stirring speed is 200r/min and the stirring time is 20 min.
The stirring operation in step S6 is performed in a sealed environment.
The precipitation time in the step S7 is 3h, and the drying method is specifically that a rotary evaporator is adopted for evaporation and compression.
In the invention, polysiloxane with certain mass parts is firstly added into a reaction kettle, then starch, acidic solution and hydrogen peroxide are sequentially added, stirring operation is carried out, the mixture is uniformly stirred, then ammonium bromide and sodium hydroxide are added into the reaction kettle, and the mixture is continuously uniformly stirred to obtain liquid, wherein the hydrogen peroxide is a strong oxidant, even contains a part of carcinogen, and is matched with the acidic solution for use, so that harmful substances in the hydrogen peroxide can be neutralized, the quality of the prepared catalyst is ensured, secondly, the added ammonium bromide and sodium hydroxide are alkaline substances, so that the acidity of the acidic solution can be neutralized, the corrosivity is reduced, the ammonium bromide has micro-hygroscopicity, the moisture in the air can be absorbed, the good preparation environment is ensured, secondly, the ammonium bromide and the sodium hydroxide both have water absorbability, and the subsequent operations such as precipitation drying can be conveniently carried out, saving time and improving efficiency, then heating and stirring the liquid in the reaction kettle to naturally cool the liquid to obtain a first polymer, heating the liquid to conveniently mix and neutralize the first polymer, filtering the polymer, performing chemical foaming treatment to obtain an organic silicon foam material, adding the organic silicon foam material into a stirring tank, then potassium permanganate and a surfactant are sequentially added into the stirring tank, the potassium permanganate and the surfactant can eliminate toxic substances in the organic silicon foam, thereby avoiding the damage to human body after long-time use and contact, the surfactant can better mix all parts, simultaneously the temperature is raised, the mixture is uniformly stirred, the starch is added into the stirring tank and then is uniformly stirred again, and then carrying out polymerization reaction to obtain a second polymer, wherein the starch can conveniently remove moisture, and the second polymer is precipitated and dried to obtain the required organic silicon foam catalyst.
Example 2:
an organosilicon foam catalyst comprises the following components in parts by weight:
50 parts of polysiloxane;
20 parts of hydrogen peroxide;
acid solution, 8 parts;
4 parts of ammonium bromide;
3 parts of sodium hydroxide;
2 parts of potassium permanganate;
6 parts of starch;
1 part of surfactant;
acrylate, 6 parts.
The surfactant is a mixture of quaternary ammonium compound, amino acid type and polysorbate.
A preparation method adopting an organosilicon foam catalyst comprises the following operation steps:
s1, adding polysiloxane in a certain mass part into a reaction kettle, then sequentially adding an acidic solution and hydrogen peroxide, and stirring uniformly;
s2, adding ammonium bromide and sodium hydroxide into the reaction kettle, and continuously stirring uniformly to obtain liquid;
s3, heating and stirring the liquid in the reaction kettle, and naturally cooling the liquid to obtain a first polymer;
s4, filtering the polymer, and performing chemical foaming treatment to obtain an organosilicon foam material;
s5, adding the organic silicon foam material into a stirring tank, then sequentially adding potassium permanganate and a surfactant into the stirring tank, simultaneously heating and uniformly stirring;
s6, adding starch into the stirring tank, uniformly stirring again, and carrying out polymerization reaction to obtain a second polymer;
s7, precipitating the second polymer and then drying to obtain the required organosilicon foam catalyst.
The stirring speed in step S1 and the stirring time in step S2 are both 300r/min and 102 min.
In step S3, the temperature was 785 ℃ and the temperature after cooling was considered to be 25 ℃.
The stirring speed in step S3 was 120 r/min.
The temperature of the temperature rise in the step S5 was 85 ℃, the stirring speed was 75r/min, and the stirring time was 7 min.
In step S6, the stirring speed is 280r/min, and the stirring time is 35 min.
The stirring operation in step S6 is performed in a sealed environment.
The precipitation time in the step S7 is 4.5h, and the drying method is specifically that a rotary evaporator is adopted for evaporation and compression.
In the invention, polysiloxane with certain mass parts is firstly added into a reaction kettle, then starch, acidic solution and hydrogen peroxide are sequentially added, stirring operation is carried out, the mixture is uniformly stirred, then ammonium bromide and sodium hydroxide are added into the reaction kettle, and the mixture is continuously uniformly stirred to obtain liquid, wherein the hydrogen peroxide is a strong oxidant, even contains a part of carcinogen, and is matched with the acidic solution for use, so that harmful substances in the hydrogen peroxide can be neutralized, the quality of the prepared catalyst is ensured, secondly, the added ammonium bromide and sodium hydroxide are alkaline substances, so that the acidity of the acidic solution can be neutralized, the corrosivity is reduced, the ammonium bromide has micro-hygroscopicity, the moisture in the air can be absorbed, the good preparation environment is ensured, secondly, the ammonium bromide and the sodium hydroxide both have water absorbability, and the subsequent operations such as precipitation drying can be conveniently carried out, saving time and improving efficiency, then heating and stirring the liquid in the reaction kettle to naturally cool the liquid to obtain a first polymer, heating the liquid to conveniently mix and neutralize the first polymer, filtering the polymer, performing chemical foaming treatment to obtain an organic silicon foam material, adding the organic silicon foam material into a stirring tank, then potassium permanganate and a surfactant are sequentially added into the stirring tank, the potassium permanganate and the surfactant can eliminate toxic substances in the organic silicon foam, thereby avoiding the damage to human body after long-time use and contact, the surfactant can better mix all parts, simultaneously the temperature is raised, the mixture is uniformly stirred, the starch is added into the stirring tank and then is uniformly stirred again, and then carrying out polymerization reaction to obtain a second polymer, wherein the starch can conveniently remove moisture, and the second polymer is precipitated and dried to obtain the required organic silicon foam catalyst.
Example 3:
an organosilicon foam catalyst comprises the following components in parts by weight:
60 parts of polysiloxane;
15 parts of hydrogen peroxide;
6 parts of an acidic solution;
3 parts of ammonium bromide;
2 parts of sodium hydroxide;
2 parts of potassium permanganate;
5 parts of starch;
1 part of surfactant;
acrylate, 6 parts.
The surfactant is selected from stearic acid, dialkyl sodium benzenesulfonate, quaternary ammonium compound, amino acid type and polysorbate.
A preparation method adopting an organosilicon foam catalyst comprises the following operation steps:
s1, adding polysiloxane in a certain mass part into a reaction kettle, then sequentially adding an acidic solution and hydrogen peroxide, and stirring uniformly;
s2, adding ammonium bromide and sodium hydroxide into the reaction kettle, and continuously stirring uniformly to obtain liquid;
s3, heating and stirring the liquid in the reaction kettle, and naturally cooling the liquid to obtain a first polymer;
s4, filtering the polymer, and performing chemical foaming treatment to obtain an organosilicon foam material;
s5, adding the organic silicon foam material into a stirring tank, then sequentially adding potassium permanganate and a surfactant into the stirring tank, simultaneously heating and uniformly stirring;
s6, adding starch into the stirring tank, uniformly stirring again, and carrying out polymerization reaction to obtain a second polymer;
s7, precipitating the second polymer and then drying to obtain the required organosilicon foam catalyst.
The stirring speed in step S1 and the stirring time in step S2 are both 450r/min and 15 min.
The temperature at which the temperature was raised in step S3 was 90 ℃, and the temperature after the cooling was deemed to be 15 ℃.
The stirring speed in step S3 was 150 r/min.
The temperature of the temperature rise in the step S5 is 90 ℃, the stirring speed is 80r/min, and the stirring time is 8 min.
In step S6, the stirring speed is 300r/min and the stirring time is 40 min.
The stirring operation in step S6 is performed in a sealed environment.
The precipitation time in the step S7 is 4h, and the drying method is specifically that a rotary evaporator is adopted for evaporation and compression.
In the invention, polysiloxane with certain mass parts is firstly added into a reaction kettle, then starch, acidic solution and hydrogen peroxide are sequentially added, stirring operation is carried out, the mixture is uniformly stirred, then ammonium bromide and sodium hydroxide are added into the reaction kettle, and the mixture is continuously uniformly stirred to obtain liquid, wherein the hydrogen peroxide is a strong oxidant, even contains a part of carcinogen, and is matched with the acidic solution for use, so that harmful substances in the hydrogen peroxide can be neutralized, the quality of the prepared catalyst is ensured, secondly, the added ammonium bromide and sodium hydroxide are alkaline substances, so that the acidity of the acidic solution can be neutralized, the corrosivity is reduced, the ammonium bromide has micro-hygroscopicity, the moisture in the air can be absorbed, the good preparation environment is ensured, secondly, the ammonium bromide and the sodium hydroxide both have water absorbability, and the subsequent operations such as precipitation drying can be conveniently carried out, saving time and improving efficiency, then heating and stirring the liquid in the reaction kettle to naturally cool the liquid to obtain a first polymer, heating the liquid to conveniently mix and neutralize the first polymer, filtering the polymer, performing chemical foaming treatment to obtain an organic silicon foam material, adding the organic silicon foam material into a stirring tank, then potassium permanganate and a surfactant are sequentially added into the stirring tank, the potassium permanganate and the surfactant can eliminate toxic substances in the organic silicon foam, thereby avoiding the damage to human body after long-time use and contact, the surfactant can better mix all parts, simultaneously the temperature is raised, the mixture is uniformly stirred, the starch is added into the stirring tank and then is uniformly stirred again, and then carrying out polymerization reaction to obtain a second polymer, wherein the starch can conveniently remove moisture, and the second polymer is precipitated and dried to obtain the required organic silicon foam catalyst.
The method has the advantages that the acidity of the prepared catalyst is obviously reduced, the damage to a human body caused by long-time use can be avoided, the effect is stable, the catalytic activity cannot be continuously reduced after long-time use, and the method is convenient to prepare, low in cost and high in efficiency.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims (10)

1. The organosilicon foam catalyst is characterized by comprising the following components in parts by weight:
50-70 parts of polysiloxane;
10-30 parts of hydrogen peroxide;
5-10 parts of an acidic solution;
1-5 parts of ammonium bromide;
1-3 parts of sodium hydroxide;
1-3 parts of potassium permanganate;
5-8 parts of starch;
1-2 parts of a surfactant;
5-8 parts of acrylate.
2. The silicone foam catalyst according to claim 1, wherein the surfactant is selected from one or more of stearic acid, sodium dialkylbenzenesulfonate, quaternary ammonium compound, amino acid type, and polysorbate.
3. A process for the preparation of a catalyst using the silicone foam of claim 1 or 2, characterized in that it comprises the following operative steps:
s1, adding polysiloxane in a certain mass part into a reaction kettle, then sequentially adding an acidic solution and hydrogen peroxide, and stirring uniformly;
s2, adding ammonium bromide and sodium hydroxide into the reaction kettle, and continuously stirring uniformly to obtain liquid;
s3, heating and stirring the liquid in the reaction kettle, and naturally cooling the liquid to obtain a first polymer;
s4, filtering the polymer, and performing chemical foaming treatment to obtain an organosilicon foam material;
s5, adding the organic silicon foam material into a stirring tank, then sequentially adding potassium permanganate and a surfactant into the stirring tank, simultaneously heating and uniformly stirring;
s6, adding starch into the stirring tank, uniformly stirring again, and carrying out polymerization reaction to obtain a second polymer;
s7, precipitating the second polymer and then drying to obtain the required organosilicon foam catalyst.
4. The method as claimed in claim 3, wherein the stirring speed in step S1 and step S2 is 200-500r/min, and the stirring time is 10-15 min.
5. The method of claim 4, wherein the temperature at which the temperature is raised in step S3 is 70 to 90 ℃ and the temperature after the cooling is 10 to 30 ℃.
6. The method for preparing the silicone foam catalyst according to claim 5, wherein the stirring speed in step S3 is 50 to 150 r/min.
7. The method for preparing the silicone foam catalyst according to claim 3, wherein the temperature of the temperature rise in step S5 is 70-90 ℃, the stirring speed is 50-80r/min, and the stirring time is 5-8 min.
8. The method as claimed in claim 7, wherein the stirring speed in step S6 is 200-300r/min, and the stirring time is 20-40 min.
9. The method of preparing the silicone foam catalyst according to claim 8, wherein the stirring operation in step S6 is performed in a sealed environment.
10. The method for preparing the silicone foam catalyst according to claim 3, wherein the precipitation time in step S7 is 3-5h, and the drying is performed by evaporation compression using a rotary evaporator.
CN202011047312.XA 2020-09-29 2020-09-29 Organosilicon foam catalyst and preparation method thereof Pending CN112191272A (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109054024A (en) * 2018-08-09 2018-12-21 苏州思德新材料科技有限公司 A kind of preparation method of the organic foam stabilizer of polyester form preparation
CN109206616A (en) * 2018-08-09 2019-01-15 苏州思德新材料科技有限公司 A kind of preparation method of the organic foam stabilizer with flame retardant property

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109054024A (en) * 2018-08-09 2018-12-21 苏州思德新材料科技有限公司 A kind of preparation method of the organic foam stabilizer of polyester form preparation
CN109206616A (en) * 2018-08-09 2019-01-15 苏州思德新材料科技有限公司 A kind of preparation method of the organic foam stabilizer with flame retardant property

Non-Patent Citations (1)

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Title
李颖: ""有机硅泡沫材料的制备研究"", 《中国优秀博硕士学位论文全文数据库 (硕士) 工程科技Ⅰ辑》 *

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Application publication date: 20210108