CN113831857B - Organosilicon surfactant and preparation method and application thereof - Google Patents
Organosilicon surfactant and preparation method and application thereof Download PDFInfo
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- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
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Abstract
The invention discloses an organosilicon surfactant and a preparation method and application thereof, belonging to the technical field of organosilicon surfactants. The surface activitySex agents include a compound of the formulaAndis a polyether modified organosilicon, m is 15-35, n is 1-8, and m+n is 16-38; r= -CH 2 CH 2 CH 2 O(CH 2 CH 2 O) a (CH 2 CH(CH 3 )O) b R 2 ，R 1 Is CH 3 Or R, a and b are each 1 to 20, a+b is 5 to 30, R 2 Is an alkyl group having 1 to 4C; p is 40-70, q is 5-20, and p+q is 45-80; r is R 4 ＝‑CH 2 CH 2 CH 2 O(CH 2 CH 2 O) c (CH 2 CH(CH 3 )O) d R 5 ,R 3 Is CH 3 Or R is 4 C and d are each 1 to 25, c+d is 15 to 40, R 5 Is hydroxyl. The open cell property and the stability of the single-component polyurethane foam joint mixture can be effectively regulated and controlled.
Description
Technical Field
The invention relates to the technical field of organic silicon surfactants, in particular to an organic silicon surfactant and a preparation method and application thereof.
Background
The single-component polyurethane foam joint filling agent (OCF) takes polyurethane prepolymer, foaming agent, spraying agent and the like as main raw materials, is packaged and stored in a single pressure tank mode, can be instantly sprayed into rigid foam when in use, and can rapidly fill and seal joints or holes of a building. The product is a novel sealing material integrating bonding, fixing, filling, sealing, heat insulation and sound insulation, and is especially suitable for sealing, plugging and waterproofing between plastic steel or aluminum alloy doors and windows and walls. Meanwhile, the novel waterproof wall has the advantages of convenience in carrying and use, high construction efficiency, shock resistance, crack resistance, water resistance, strong binding power, good decorative effect and the like.
The role of the surfactant in the foaming process of the single-component polyurethane is well known, and the surfactant plays a very important role in the aspects of regulation of the cell structure, the flow property during foaming and the like. Aiming at the quality problems of polyurethane foam joint mixture products, such as easy shrinkage of foam, poor dimensional stability, poor fluidity of a foaming system and the like, the effect of the surfactant is particularly important.
At present, no surfactant capable of effectively regulating the cell opening property and stability of the one-component polyurethane foam exists.
In view of this, the present invention has been made.
Disclosure of Invention
One of the purposes of the invention is to provide an organosilicon surfactant which can effectively regulate and control the open cell property and the stability of a one-component polyurethane foam joint mixture.
The second object of the present invention is to provide a method for preparing the above-mentioned silicone surfactant.
The invention also provides an application of the organic silicon surfactant.
The invention aims at providing a single-component polyurethane foam joint mixture with the raw materials containing the organic silicon surfactant.
The application can be realized as follows:
in a first aspect, the present application provides a silicone surfactant, the silicone surfactant comprising, in parts by weight, a starting material comprising 10 to 60 parts of a first polyether modified silicone and 10 to 65 parts of a second polyether modified silicone;
the structural formula of the first polyether modified organosilicon isWherein, the value of m is 15-35, the value of n is 1-8, and the value of m+n is 16-38; r has the structure of-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) a (CH 2 CH(CH 3 )O) b R 2 ，R 1 Is CH 3 Or R is 1 The values of =r, a are 1-20, b are 1-20, and a+b are 5-30, R 2 Is an alkyl group having 1 to 4 carbon atoms;
the structural formula of the second polyether modified organosilicon isWherein, the value of p is 40-70, the value of q is 5-20, and the value of p+q is 45-80; r is R 4 Is of the structure-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) c (CH 2 CH(CH 3 )O) d R 5 ，R 3 Is CH 3 Or R is 3 ＝R 4 Wherein c has a value of 1-25, d has a value of 1-25, and c+d has a value of 15-40, R 5 is-OH.
In an alternative embodiment, the total amount of the first polyether modified silicone and the second polyether modified silicone is 70 to 100 parts.
In an alternative embodiment, the starting material for the silicone surfactant further comprises no more than 15 parts of a first copolymer having terminal hydroxyl groups derived from a polyhydroxy compound.
In an alternative embodiment, the polyol comprises a low molecular weight polyol.
In an alternative embodiment, the low molecular weight polyol comprises at least one of ethylene glycol, propylene glycol, dipropylene glycol, 1, 3-butanediol, 1, 4-butanediol, 1, 6-hexanediol, neopentyl glycol, and diethylene glycol.
In an alternative embodiment, the first copolymer is a polyether polyol having a molecular weight of less than 300.
In a preferred embodiment, the first copolymer has a molecular weight of 50 to 300.
In an alternative embodiment, the starting material for the silicone surfactant further comprises no more than 15 parts of a second copolymer having terminal hydroxyl groups derived from a polyhydroxy compound, and the second copolymer is of a different structural formula than the first copolymer.
In an alternative embodiment, the second copolymer is a polyether polyol having a molecular weight greater than 1000.
In an alternative embodiment, the second copolymer has a molecular weight of 1000 to 3000.
In a preferred embodiment, 20 to 55 parts of the first polyether modified silicone, 20 to 65 parts of the second polyether modified silicone, 5 to 15 parts of the first copolymer, and 5 to 15 parts of the second copolymer are contained per 100 parts of the silicone surfactant.
In a more preferred embodiment, 25 parts of the first polyether modified silicone, 65 parts of the second polyether modified silicone, 5 parts of the first copolymer, and 5 parts of the second copolymer are contained per 100 parts of silicone surfactant.
In a second aspect, the present application provides a method of preparing a silicone surfactant according to any one of the preceding embodiments, comprising the steps of: mixing the raw materials of the organic silicon surfactant according to the proportion.
In an alternative embodiment, the first polyether modified organosilicon and the second polyether modified organosilicon are obtained by mixing and reacting hydrogen-containing silicone oil with allyl polyether, chloroplatinic acid catalyst and cocatalyst respectively.
In an alternative embodiment, the hydrogen containing silicone oil is combined with the allyl polyether, chloroplatinic acid catalyst and cocatalyst at 70-150 ℃ for 2-10 hours at normal pressure.
In an alternative embodiment, the hydrogen-containing silicone oil is obtained by taking octamethyl cyclotetrasiloxane, high hydrogen-containing silicone oil and hexamethyldisiloxane as raw materials, or taking octamethyl cyclotetrasiloxane, high hydrogen-containing silicone oil and 1, 3-tetramethyl disiloxane as raw materials and reacting under the action of an acid catalyst.
In an alternative embodiment, the starting materials of the hydrogen-containing silicone oil are reacted under the action of an acidic catalyst at a temperature of 30-90 ℃ for 5-8 hours.
In a third aspect, the present application provides the use of a silicone surfactant as in any of the preceding embodiments for the preparation of a one-component polyurethane foam caulking agent.
In a fourth aspect, the present application provides a one-component polyurethane foam caulking agent, the one-component polyurethane foam caulking agent being prepared from a raw material comprising any one of the silicone surfactants of the previous embodiments.
The beneficial effects of this application include:
the application can effectively adjust the foam opening performance of the single-component polyurethane foam joint mixture by adopting two different polyether modified organic silicon with specific structures, realizes the control on the fineness, stability and extension meter of the foam, and improves the problems of larger shrinkage, insufficient fineness and insufficient extension meter of the conventional single-component polyurethane foam joint mixture.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below. The specific conditions are not noted in the examples and are carried out according to conventional conditions or conditions recommended by the manufacturer. The reagents or apparatus used were conventional products commercially available without the manufacturer's attention.
The following describes the silicone surfactant provided in the present application, and a preparation method and application thereof.
The application provides an organic silicon surfactant, which comprises, by weight, 10-60 parts of a first polyether modified organic silicon and 10-65 parts of a second polyether modified organic silicon.
The parts of the first polyether-modified silicone may be 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts, or the like, and may be any other value in the range of 10 to 60.
Similarly, the parts of the second polyether modified silicone may be 10 parts, 15 parts, 20 parts, 25 parts, 30 parts, 35 parts, 40 parts, 45 parts, 50 parts, 55 parts, 60 parts, 65 parts, or the like, and may be any other value in the range of 10 to 65.
In a preferred embodiment, the total amount of the first polyether modified silicone and the second polyether modified silicone is 70 to 100 parts, such as 70 parts, 75 parts, 80 parts, 85 parts, 90 parts, 100 parts, etc., and may be any other value in the range of 70 to 100 parts.
The structural formula of the first polyether modified organosilicon isWherein, the value of m is 15-35, the value of n is 1-8, and the value of m+n is 16-38; r has the structure of-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) a (CH 2 CH(CH 3 )O) b R 2 ，R 1 Is CH 3 Or R is 1 =r (i.e., R 1 Or is CH 3 Or exactly the same as R), a has a value of 1 to 20, b has a value of1-20, and a+b has a value of 5-30, R 2 Is an alkyl group having 1 to 4 carbon atoms.
Incidentally, the value of m may be 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35 or the like, or may be any other value in the range of 15 to 35.
The value of n may be 1, 2, 3, 4, 5, 6, 7 or 8, etc., or any other value within the range of 1 to 8.
The value of m+n may be 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37 or 38, etc., or any other value within the range of 16 to 38.
The value of a may be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20, etc., or any other value in the range of 1 to 20.
The value of b may be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20, etc., or any other value in the range of 1-20.
The value of a+b may be 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, or the like, or any other value in the range of 5 to 30.
R 2 Alkyl groups having 1 to 4 carbon atoms, i.e., the number of carbon atoms of the alkyl group may be 1, 2, 3 or 4.
In some embodiments, the first polyether modified silicone may include, by way of example and not limitation, at least one of the following:
A、Si(CH 3 ) 3 -O-[Si(CH 3 ) 2 -O] 20 -[Si(CH 3 )R-O] 2.5 -Si(CH 3 ) 3 wherein r= -CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 15 (CH 2 CH(CH 3 )O) 8 CH 3 In the first polyether modified organosilicon, R in the corresponding structural formula 1 Is CH 3 ；
B、Si(CH 3 ) 3 -O-[Si(CH 3 ) 2 -O] 25.6 -[Si(CH 3 )R-O] 4.5 -Si(CH 3 ) 3 Wherein r= -CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 10 (CH 2 CH(CH 3 )O) 15 CH 3 In the first polyether modified organosilicon, R in the corresponding structural formula 1 Is CH 3 ；
C、Si(CH 3 ) 3 -O-[Si(CH 3 ) 2 -O] 31 -[Si(CH 3 )R-O] 4.9 -Si(CH 3 ) 3 Wherein r= -CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 12 (CH 2 CH(CH 3 )O) 5 CH 3 In the first polyether modified organosilicon, R in the corresponding structural formula 1 Is CH 3 ；
D、R 1 -Si(CH 3 ) 2 -O-[Si(CH 3 ) 2 -O] 20 -[Si(CH 3 )R-O] 2.5 -Si(CH 3 ) 2 -R 1 Wherein R is 1 ＝R＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 15 (CH 2 CH(CH 3 )O) 5 CH 3 ；
E、Si(CH 3 ) 3 -O-[Si(CH 3 ) 2 -O] 25.6 -[Si(CH 3 )R-O] 4.5 -Si(CH 3 ) 3 Wherein r= -CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 13 (CH 2 CH(CH 3 )O) 8 CH 3 In the first polyether modified organosilicon, R in the corresponding structural formula 1 Is CH 3 ；
F、R 1 -Si(CH 3 ) 2 -O-[Si(CH 3 ) 2 -O] 29 -[Si(CH 3 )R-O] 3.9 -Si(CH 3 ) 2 -R 1 Wherein R is 1 ＝R＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 15 (CH 2 CH(CH 3 )O) 8 OCH 3 。
The structural formula of the second polyether modified organosilicon isWherein, the value of p is 40-70, the value of q is 5-20, and the value of p+q is 45-80; r is R 4 Is of the structure-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) c (CH 2 CH(CH 3 )O) d R 5 ，R 3 Is CH 3 Or R is 3 ＝R 4 (i.e., R 3 Or is CH 3 Or with R 4 Identical) wherein c has a value of 1 to 25, d has a value of 1 to 25, and c+d has a value of 15 to 40, R 5 is-OH.
By reference, the value of p may be 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, or 70, etc., or any other value in the range of 40-70.
The value of q may be 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19 or 20, etc., or any other value within the range of 5-20.
The value of p+q may be 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70, 71, 72, 73, 74, 75, 76, 77, 78, 79 or 80, etc., or any other value in the range of 45 to 80.
The value of c may be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, or the like, or any other value in the range of 1 to 25.
The value of d may be 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, or the like, or any other value in the range of 1 to 25.
The value of c+d may be 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39 or 40, etc., or any other value within the range of 15 to 40.
In some embodiments, the second polyether modified silicone may include, by way of example and not limitation, at least one of the following:
G、Si(CH 3 ) 3 -O-[Si(CH 3 ) 2 -O] 40.5 -[Si(CH 3 )R 4 -O] 4.5 -Si(CH 3 ) 3 wherein R is 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 19 (CH 2 CH(CH 3 )O) 11 OH in the second polyether modified silicone corresponds to R in the structural formula 3 Is CH 3 ；
H、Si(CH 3 ) 3 -O-[Si(CH 3 ) 2 -O] 47.7 -[Si(CH 3 )R 4 -O] 7.3 -Si(CH 3 ) 3 Wherein R is 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 12 (CH 2 CH(CH 3 )O) 18 OH in the second polyether modified silicone corresponds to R in the structural formula 3 Is CH 3 ；
I、Si(CH 3 ) 3 -O-[Si(CH 3 ) 2 -O] 60.3 -[Si(CH 3 )R 4 -O] 6.7 -Si(CH 3 ) 3 Wherein R is 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 19 (CH 2 CH(CH 3 )O) 11 OH in the second polyether modified silicone corresponds to R in the structural formula 3 Is CH 3 ；
J、R 3 -Si(CH 3 ) 2 -O-[Si(CH 3 ) 2 -O] 47.7 -[Si(CH 3 )R 4 -O] 7.3 -Si(CH 3 ) 2 -R 3 Wherein R is 3 ＝R 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 19 (CH 2 CH(CH 3 )O) 9 OH；
K、R 3 -Si(CH 3 ) 2 -O-[Si(CH 3 ) 2 -O] 43.0 -[Si(CH 3 )R 4 -O] 6.5 -Si(CH 3 ) 2 -R 3 Wherein R is 3 ＝R 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 21 (CH 2 CH(CH 3 )O) 5 OH。
By adopting two different polyether modified organic silicon with specific structures to be used in cooperation, the foam opening performance of the single-component polyurethane foam joint mixture can be effectively adjusted, the control on the aspects of fineness, stability and extension meter of the foam holes is realized, and the problems that the existing single-component polyurethane foam joint mixture is large in shrinkage, fineness and extension meter are insufficient are solved. The related products obtained by the reaction of the hydrogen-containing silicone oil with a single side chain and the allyl polyether have relatively weak controllability of the opening and closing holes of the foam and certain limitation.
Further, the silicone surfactant of the present application also includes no more than 15 parts of a first copolymer having terminal hydroxyl groups derived from a polyhydroxy compound.
The content of the first copolymer in the silicone surfactant may be 0 part, 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, or the like, and may be any other value in the range of 0 to 15 parts.
The above polyol may include, for example, a low molecular weight polyol such as at least one of ethylene glycol, propylene glycol, dipropylene glycol, 1, 3-butanediol, 1, 4-butanediol, 1, 6-hexanediol, neopentyl glycol, and diethylene glycol.
In a preferred embodiment, the first copolymer is a polyether polyol having a molecular weight of less than 300, preferably having a molecular weight of 50 to 300.
Further, the above silicone surfactant may further include not more than 15 parts of a second copolymer having terminal hydroxyl groups derived from a polyhydroxy compound, and the second copolymer is different from the first copolymer in structural formula.
The content of the second copolymer in the silicone surfactant may be 0 part, 1 part, 2 parts, 3 parts, 4 parts, 5 parts, 6 parts, 7 parts, 8 parts, 9 parts, 10 parts, 11 parts, 12 parts, 13 parts, 14 parts, 15 parts, or the like, and may be any other value in the range of 0 to 15 parts.
The polyol in the second copolymer may also include a low molecular weight polyol, such as at least one of ethylene glycol, propylene glycol, dipropylene glycol, 1, 3-butanediol, 1, 4-butanediol, 1, 6-hexanediol, neopentyl glycol, and diethylene glycol. That is, the first copolymer and the second copolymer both use a hydroxyl compound as an initiator, and the initiators used may be the same, differing mainly in the molecular weight of the terminal hydroxyl compound derived from the initiator.
In a preferred embodiment, the second copolymer is a polyether polyol having a molecular weight above 1000, preferably having a molecular weight of 1000-3000.
By adopting two different copolymers with specific structures and terminal hydroxyl groups derived from polyhydroxy compounds, the compatibility of the organosilicon surfactant system can be improved, and the compatibility of a sample and a foaming system can be further improved.
In a preferred embodiment, 20 to 55 parts of the first polyether modified silicone, 20 to 65 parts of the second polyether modified silicone, 5 to 15 parts of the first copolymer, and 5 to 15 parts of the second copolymer are contained per 100 parts of the silicone surfactant. In a more preferred embodiment, 25 parts of the first polyether modified silicone, 65 parts of the second polyether modified silicone, 5 parts of the first copolymer, and 5 parts of the second copolymer are contained per 100 parts of silicone surfactant. In the preferred embodiment, the product has the best dimensional stability and the finest and most uniform cells.
Correspondingly, the application also provides a preparation method of the organic silicon surfactant, which comprises the following steps: mixing the components of the organic silicon surfactant according to the proportion.
Namely, when the silicone surfactant contains the first copolymer and the second copolymer, the silicone surfactant is prepared by: the first polyether modified silicone, the second polyether modified silicone, the first copolymer, and the second copolymer are co-mixed. If the silicone surfactant does not contain the first copolymer and/or the second copolymer, the mixing ingredients should be free of the above materials during the mixing process.
By way of reference, the first polyether modified organosilicon and the second polyether modified organosilicon are obtained by mixing and reacting hydrogen-containing silicone oil with allyl polyether, chloroplatinic acid catalyst and cocatalyst.
Specifically, at least two hydrogen-containing silicone oils are respectively added into a reactor together with allyl polyether, chloroplatinic acid catalyst and cocatalyst with different structures, and the mixture is heated to 70-150 ℃ (such as 70 ℃, 80 ℃, 90 ℃, 100 ℃, 110 ℃, 120 ℃, 130 ℃, 140 ℃ or 150 ℃ and the like) under normal pressure, and reacted for 2-10h (such as 2h, 3h, 4h, 5h, 6h, 7h, 8h, 9h or 10h and the like).
Wherein, the chloroplatinic acid catalyst can be a platinum catalyst, and the amount of the platinum catalyst can be 3-20ppm (such as 3ppm, 5ppm, 8ppm, 10ppm, 15ppm or 20ppm, etc.) of the total amount of materials (namely the total amount of hydrogen-containing silicone oil and allyl polyether).
The cocatalyst may be at least one of acetamide, diethanolamine, triethanolamine, triisopropanolamine, triethylamine and N-butylethanolamine. The amount of cocatalyst may be 50-2000ppm (e.g.50 ppm, 10ppm, 200ppm, 500ppm, 1000ppm, 1500ppm or 20ppm, etc.) based on the total amount of the feed.
The hydrogen-containing silicone oil can be prepared by taking octamethyl cyclotetrasiloxane, high hydrogen-containing silicone oil and hexamethyldisiloxane as raw materials or taking octamethyl cyclotetrasiloxane, high hydrogen-containing silicone oil and 1, 3-tetramethyl disiloxane as raw materials and reacting under the action of an acid catalyst.
Specifically, octamethyl cyclotetrasiloxane, high hydrogen silicone oil and hexamethyldisiloxane are used as raw materials, or octamethyl cyclotetrasiloxane, high hydrogen silicone oil and 1, 3-tetramethyl disiloxane are used as raw materials, and under the action of an acid catalyst, the reaction is carried out for 5-8h (such as 5h, 5.5h, 6h, 6.5h, 7h, 7.5h or 8 h) under the condition that the reaction temperature is 30-90 ℃ (such as 30 ℃, 40 ℃,50 ℃, 60 ℃, 70 ℃, 80 ℃ or 90 ℃), etc.
Wherein the acid catalyst may be at least one of acid clay, sulfuric acid, trifluoromethanesulfonic acid and acid resin, preferably acid resin or acid clay. The amount of the acidic catalyst used may be, for example, 2 to 6wt% (e.g., 2wt%, 3wt%, 4wt%, 5wt%, 6wt%, etc.) of the total amount of the raw materials of the hydrogen-containing silicone oil.
In addition, the application also provides application of the organic silicon surfactant, for example, application of the organic silicon surfactant in preparing a one-component polyurethane foam joint compound.
Correspondingly, the application also provides a single-component polyurethane foam joint mixture, and the preparation raw materials of the single-component polyurethane foam joint mixture contain the organosilicon surfactant.
The features and capabilities of the present invention are described in further detail below in connection with the examples.
Example 1
This example provides 4 groups of silicone surfactants, the preparation method of which is as follows:
(1) Preparation of hydrogen-containing silicone oil
148.66g of octamethyl cyclotetrasiloxane, 16.03g of high-hydrogen silicone oil and 15.31g of hexamethyldisiloxane are reacted for 5 hours at 65 ℃ under the action of 5.4g of acid resin to obtain first hydrogen silicone oil.
157.32g of octamethyl cyclotetrasiloxane, 15.08g of high-hydrogen silicone oil and 7.60g of hexamethyldisiloxane are reacted for 5 hours at 65 ℃ under the action of 5.4g of acid resin to obtain second hydrogen silicone oil.
(2) Preparation of first polyether modified organosilicon and second polyether modified organosilicon
40g of first hydrogen-containing silicone oil and 93.51g of allyl polyether are added into a reactor, and the temperature is raised to 110 ℃ under normal pressure and under the conditions of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst to react for 5 hours, so as to obtain first polyether modified organosilicon, the molecular formula of which is: si (CH) 3 ) 3 -O-[Si(CH 3 ) 2 -O] 20 -[Si(CH 3 )R-O] 2.5 -Si(CH 3 ) 3 Wherein r= -CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 15 (CH 2 CH(CH 3 )O) 8 CH 3 。
Adding 35g of second hydrogen-containing silicone oil and 99.45g of allyl polyether into a reactor, heating to 110 ℃ under normal pressure and heating to react for 5 hours under the conditions of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst, and obtaining second polyether modified organosilicon, wherein the molecular formula is as follows: si (CH) 3 ) 3 -O-[Si(CH 3 ) 2 -O] 40.5 -[Si(CH 3 )R 4 -O] 4.5 -Si(CH 3 ) 3 Wherein R is 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 19 (CH 2 CH(CH 3 )O) 11 OH。
(3) Preparation of organosilicon surfactant for single-component polyurethane foam
The first polyether modified organic silicon, the second polyether modified organic silicon, the first copolymer (ethylene glycol) and the second copolymer (dipropylene glycol serving as an initiator, and the molecular weight of 1500) are mixed according to different proportions in the table 1, and are stirred for 1h at 50 ℃ to obtain different organic silicon surfactant samples for the single-component polyurethane foam joint filling agent.
Table 1 example 1 formulation (weight percent,%) and performance evaluation of the corresponding product
Remarks: foam dimensional stability is expressed in terms of angle, the smaller the angle, the better the dimensional stability (and vice versa). The cell evaluation results are expressed as scores, and a higher score represents finer and more uniform cells (score range 1.0 to 5.0). The following is the same.
As can be seen from Table 1, in the above-mentioned compounding ratio range, the larger the content of the first polyether-modified silicone, the coarser the cells of the foam produced from the corresponding surfactant, and the smaller the corresponding extension meter, with the total content of the first polyether-modified silicone and the second polyether-modified silicone unchanged.
Example 2
This example provides 4 groups of silicone surfactants, the preparation method of which is as follows:
(1) Preparation of hydrogen-containing silicone oil
146.57g of octamethyl cyclotetrasiloxane, 22.22g of high-hydrogen silicone oil and 11.20g of hexamethyldisiloxane are reacted for 6 hours at 65 ℃ under the action of 9g of acid clay to obtain first hydrogen silicone oil.
153.85g of octamethyl cyclotetrasiloxane, 20.31g of high hydrogen silicone oil and 5.84g of hexamethyldisiloxane are reacted for 6 hours at 65 ℃ under the action of 9g of acid clay to obtain second hydrogen silicone oil.
(2) Preparation of first polyether modified organosilicon and second polyether modified organosilicon
Adding 25g of first hydrogen-containing silicone oil and 93.62g of allyl polyether into a reactor, and heating to 110 ℃ under normal pressure under the conditions of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst to react for 4 hours to obtain first polyether modified organosilicon, wherein the molecular formula is as follows: si (CH) 3 ) 3 -O-[Si(CH 3 ) 2 -O] 25.6 -[Si(CH 3 )R-O] 4.5 -Si(CH 3 ) 3 Wherein r= -CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 10 (CH 2 CH(CH 3 )O) 15 CH 3 。
Adding 24g of second hydrogen-containing silicone oil and 97.72g of allyl polyether into a reactor, heating to 110 ℃ under normal pressure and heating to react for 4 hours under the conditions of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst, and obtaining second polyether modified organosilicon, wherein the molecular formula is as follows: si (CH) 3 ) 3 -O-[Si(CH 3 ) 2 -O] 47.7 -[Si(CH 3 )R 4 -O] 7.3 -Si(CH 3 ) 3 Wherein R is 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 12 (CH 2 CH(CH 3 )O) 18 OH。
(3) Preparation of organosilicon surfactant for single-component polyurethane foam
The first polyether modified organic silicon and the second polyether modified organic silicon are mixed with the first copolymer (dipropylene glycol) and the second copolymer (dipropylene glycol serving as an initiator, and the molecular weight is 1500) according to the proportion shown in the table 2 according to different proportions, and are stirred for 1h at 50 ℃ to obtain different organic silicon surfactant samples for the single-component polyurethane foam joint filling agent.
Table 2 example 2 formulation (weight percent,%) and performance evaluation of the corresponding products
As can be seen from table 2, in the above-mentioned compounding ratio range, the larger the content of the first polyether-modified silicone, the coarser the cells of the foam produced from the corresponding surfactant, the smaller the corresponding extension meter, with the total content of the first polyether-modified silicone and the second polyether-modified silicone unchanged.
Example 3
This example provides 4 groups of silicone surfactants, the preparation method of which is as follows:
(1) Preparation of hydrogen-containing silicone oil
150.15g of octamethyl cyclotetrasiloxane, 20.47g of high-hydrogen silicone oil and 9.38g of hexamethyldisiloxane are reacted for 5 hours at 65 ℃ under the action of 7.2g of acid resin to obtain first hydrogen silicone oil.
159.80g of octamethyl cyclotetrasiloxane, 15.31g of high hydrogen silicone oil and 4.88g of hexamethyldisiloxane are reacted under the action of 7.2g of acid resin at 65 ℃ for 6 hours to obtain second hydrogen silicone oil.
(2) Preparation of first polyether modified organosilicon and second polyether modified organosilicon
Adding 40g of first hydrogen-containing silicone oil and 88.91g of allyl polyether into a reactor, and heating to 110 ℃ under normal pressure under the conditions of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst to react for 4 hours to obtain first polyether modified organosilicon, wherein the molecular formula is as follows: si (CH) 3 ) 3 -O-[Si(CH 3 ) 2 -O] 31 -[Si(CH 3 )R-O] 4.9 -Si(CH 3 ) 3 Wherein r= -CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 12 (CH 2 CH(CH 3 )O) 5 CH 3 。
Adding 30g of second hydrogen-containing silicone oil and 86.61g of allyl polyether into a reactor, heating to 110 ℃ under normal pressure and heating to react for 4 hours under the conditions of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst, and obtaining second polyether modified organosilicon, wherein the molecular formula is as follows: si (CH) 3 ) 3 -O-[Si(CH 3 ) 2 -O] 60.3 -[Si(CH 3 )R 4 -O] 6.7 -Si(CH 3 ) 3 Wherein R is 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 19 (CH 2 CH(CH 3 )O) 11 OH。
(3) Preparation of organosilicon surfactant for single-component polyurethane foam
The first polyether modified organic silicon, the second polyether modified organic silicon, the first copolymer (propylene glycol) and the second copolymer (1, 4-butanediol) are mixed according to different proportions in a table 3 as an initiator, and stirred for 1h at 50 ℃ to obtain different organic silicon surfactant samples for the single-component polyurethane foam joint filling agent.
Table 3 example 3 formulation (weight percent,%) and performance evaluation of the corresponding products
As can be seen from Table 3, in the above-mentioned compounding ratio range, the larger the content of the first polyether-modified silicone, the coarser the cells of the foam produced from the corresponding surfactant, and the smaller the corresponding extension meter, with the total content of the first polyether-modified silicone and the second polyether-modified silicone unchanged.
Example 4
This example provides 4 groups of silicone surfactants, the preparation method of which is as follows:
(1) Preparation of hydrogen-containing silicone oil
151.02g of octamethyl cyclotetrasiloxane, 16.28g of high-hydrogen silicone oil and 12.87g of 1, 3-tetramethyl disiloxane are reacted for 4 hours at 65 ℃ under the action of 9g of acid clay to obtain first hydrogen silicone oil.
A second hydrogen-containing silicone oil was obtained in the same manner as in example 1.
(2) Preparation of first polyether modified organosilicon and second polyether modified organosilicon
24g of first hydrogen-containing silicone oil and 102.6g of allyl polyether are added into a reactor, and the temperature is raised to 110 ℃ for reaction for 4 hours under the condition of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst under normal pressure, so as to obtain first polyether modified organosilicon, the molecular formula of which is: r is R 1 -Si(CH 3 ) 2 -O-[Si(CH 3 ) 2 -O] 20 -[Si(CH 3 )R-O] 2.5 -Si(CH 3 ) 2 -R 1 Wherein R is 1 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 15 (CH 2 CH(CH 3 )O) 5 CH 3 。
The second polyether modified silicone, as synthesized in example 1, has the formula: si (CH) 3 ) 3 -O-[Si(CH 3 ) 2 -O] 40.5 -[Si(CH 3 )R 4 -O] 4.5 -Si(CH 3 ) 3 Wherein R is 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 19 (CH 2 CH(CH 3 )O) 11 OH。
(3) Preparation of organosilicon surfactant for single-component polyurethane foam
The first polyether modified organic silicon, the second polyether modified organic silicon, the first copolymer (ethylene glycol) and the second copolymer (dipropylene glycol serving as an initiator, and the molecular weight of 1500) are mixed according to different proportions in the table 4, and are stirred for 1h at 50 ℃ to obtain different organic silicon surfactant samples for the single-component polyurethane foam joint filling agent.
Table 4 evaluation of the Properties of the compound formulation (weight percent,%) of example 4 and the corresponding product
As can be seen from Table 4, in the above-mentioned compounding ratio range, the larger the content of the first polyether-modified silicone, the coarser the cells of the foam produced from the corresponding surfactant, and the smaller the corresponding extension meter, with the total content of the first polyether-modified silicone and the second polyether-modified silicone unchanged. Meanwhile, the introduction of the terminal hydrogen structure in the component A improves the dimensional stability of the foam, the fineness of the cell structure and the like.
Example 5
This example provides 4 groups of silicone surfactants, the preparation method of which is as follows:
(1) Preparation of hydrogen-containing silicone oil
The first hydrogen-containing silicone oil was obtained in the same manner as in the synthesis scheme of example 2.
154.90g of octamethyl cyclotetrasiloxane, 20.45g of high hydrogen silicone oil and 4.87g of 1, 3-tetramethyl disiloxane are reacted for 5 hours at 60 ℃ under the action of 9g of acid resin to obtain second hydrogen silicone oil.
(2) Preparation of first polyether modified organosilicon and second polyether modified organosilicon
32g of first hydrogen-containing silicone oil and 96.09g of allyl polyether are added into a reactor, and the temperature is raised to 110 ℃ for reaction for 4 hours under the condition of 6ppm of chloroplatinic acid catalyst and 300ppm of diethanolamine promoter under normal pressure, so as to obtain first polyether modified organosilicon, the molecular formula of which is: si (CH) 3 ) 3 -O-[Si(CH 3 ) 2 -O] 25.6 -[Si(CH 3 )R-O] 4.5 -Si(CH 3 ) 3 Wherein r= -CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 13 (CH 2 CH(CH 3 )O) 8 CH 3 。
23g of second hydrogen-containing silicone oil and 104.46g of allyl polyether are added into a reactor, and heated to 110 ℃ under normal pressure and under the conditions of 6ppm of chloroplatinic acid catalyst and 300ppm of diethanolamine promoter catalyst, so as to react for 4 hours, thereby obtaining second polyether modified organosilicon, the molecular formula of which is: r is R 3 -Si(CH 3 ) 2 -O-[Si(CH 3 ) 2 -O] 47.7 -[Si(CH 3 )R 4 -O] 7.3 -Si(CH 3 ) 2 -R 3 Wherein R is 3 ＝R 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 19 (CH 2 CH(CH 3 )O) 9 OH。
(3) Preparation of organosilicon surfactant for single-component polyurethane foam
The first polyether modified organic silicon, the second polyether modified organic silicon, the first copolymer (dipropylene glycol) and the second copolymer (dipropylene glycol is taken as an initiator, the molecular weight is 1500) are mixed according to different proportions in the table 5, and stirring is carried out for 1h at 50 ℃ to obtain different organic silicon surfactant samples for the single-component polyurethane foam joint filling agent.
Table 5 example 5 formulation (weight percent,%) and performance evaluation of the corresponding products
As can be seen from Table 5, in the above-mentioned compounding ratio range, the larger the content of the first polyether-modified silicone, the coarser the cells of the foam produced from the corresponding surfactant, and the smaller the corresponding extension meter, with the total content of the first polyether-modified silicone and the second polyether-modified silicone unchanged. Meanwhile, the introduction of the terminal hydrogen structure in the component A improves the dimensional stability of the foam, the fineness of the cell structure and the like.
Example 6
This example provides 4 groups of silicone surfactants, the preparation method of which is as follows:
(1) Preparation of hydrogen-containing silicone oil
153.65g of octamethyl cyclotetrasiloxane, 17.82g of high-hydrogen silicone oil and 8.71g of 1, 3-tetramethyl disiloxane are reacted for 5 hours at 65 ℃ under the action of 5.4g of acid resin to obtain first hydrogen silicone oil.
154.55g of octamethyl cyclotetrasiloxane, 20.15g of high-hydrogen silicone oil and 5.51g of hexamethyldisiloxane are reacted for 5 hours at 65 ℃ under the action of 5.4g of acid resin to obtain second hydrogen silicone oil.
(2) Preparation of first polyether modified organosilicon and second polyether modified organosilicon
Adding 25g of first hydrogen-containing silicone oil and 98.33g of allyl polyether into a reactor, and heating to 110 ℃ under normal pressure under the conditions of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst to react for 5 hours to obtain first polyether modified organosilicon, wherein the molecular formula is as follows: r is R 1 -Si(CH 3 ) 2 -O-[Si(CH 3 ) 2 -O] 29 -[Si(CH 3 )R-O] 3.9 -Si(CH 3 ) 2 -R 1 Wherein R is 1 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 15 (CH 2 CH(CH 3 )O) 8 OCH 3 。
23g of second hydrogen-containing silicone oil and 95.03g of allyl polyether are added into a reactor, and heated to 110 ℃ for reaction for 5 hours under normal pressure under the conditions of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst, so as to obtain second polyether modified organosilicon, wherein the molecular formula is as follows: r is R 3 -Si(CH 3 ) 2 -O-[Si(CH 3 ) 2 -O] 43.0 -[Si(CH 3 )R 4 -O] 6.5 -Si(CH 3 ) 2 -R 3 Wherein R is 4 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 21 (CH 2 CH(CH 3 )O) 5 OH。
(3) Preparation of organosilicon surfactant for single-component polyurethane foam
The first polyether modified organic silicon, the second polyether modified organic silicon, the first copolymer (propylene glycol) and the second copolymer (1, 4-butanediol) are mixed according to different proportions in a table 6, and stirred for 1h at 50 ℃ to obtain different organic silicon surfactant samples for the single-component polyurethane foam joint filling agent.
Table 6 example 6 formulation (weight percent,%) and performance evaluation of the corresponding product
As can be seen from table 6, the larger the content of the first polyether-modified silicone, the coarser the cells of the foam produced from its corresponding surfactant, the worse the dimensional stability, and the smaller the corresponding extension meter, with the total content of the first polyether-modified silicone and the second polyether-modified silicone unchanged. Meanwhile, the introduction of the terminal hydrogen structure in the component A and the component B improves the regulation and control range of the foam dimensional stability and the foam fineness.
Comparative example 1
This comparative example provides 3 groups of silicone surfactants, the preparation of which is as follows:
(1) Preparation of hydrogen-containing silicone oil
155.56g of octamethyl cyclotetrasiloxane, 14.67g of high-hydrogen silicone oil and 9.76g of hexamethyldisiloxane are reacted for 6 hours at 65 ℃ under the action of 9g of acid clay to obtain first hydrogen silicone oil.
(2) Preparation of first polyether modified organosilicon
40g of first hydrogen-containing silicone oil and 85.6g of allyl polyether are added into a reactor, and the temperature is raised to 110 ℃ under normal pressure and under the conditions of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst to react for 4 hours, so as to obtain first polyether modified organosilicon, the molecular formula of which is: si (CH) 3 ) 3 -O-[Si(CH 3 ) 2 -O] 32 -[Si(CH 3 )R-O] 3.5 -Si(CH 3 ) 3 Wherein r= -CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 15 (CH 2 CH(CH 3 )O) 8 CH 3 。
(3) Preparation of organosilicon surfactant for single-component polyurethane foam
The first polyether modified organosilicon, the first copolymer (ethylene glycol) and the second copolymer (dipropylene glycol) are mixed according to different proportions in the table 7, and stirred for 1h at 50 ℃ to obtain different organosilicon surfactant samples for the single-component polyurethane foam joint filling agent.
Table 7 evaluation of Properties of comparative example 1 formulation (weight percent,%) and corresponding product
As can be seen from table 7, in comparative example 1, the first polyether-modified silicone and the second polyether-modified silicone were weaker in their corresponding properties and smaller in the control range than those containing both the first polyether-modified silicone and the second polyether-modified silicone under the condition that the total content of polyether-modified silicone substances was equal.
Comparative example 2
This comparative example provides 3 groups of silicone surfactants, the preparation of which is as follows:
(1) Preparation of hydrogen-containing silicone oil
154.88g of octamethyl cyclotetrasiloxane, 20.50g of high-hydrogen silicone oil and 4.62g of hexamethyldisiloxane are reacted for 6 hours at 65 ℃ under the action of 9g of acid clay to obtain first hydrogen silicone oil.
(2) Preparation of second polyether modified organosilicon
Adding 25g of first hydrogen-containing silicone oil and 96.59g of allyl polyether into a reactor, and heating to 110 ℃ under normal pressure under the conditions of 6ppm of chloroplatinic acid catalyst and 200ppm of triethanolamine cocatalyst to react for 4 hours to obtain second polyether modified organosilicon, wherein the molecular formula is as follows: r is R 1 -Si(CH 3 ) 2 -O-[Si(CH 3 ) 2 -O] 58 -[Si(CH 3 )R-O] 8.9 -Si(CH 3 ) 2 -R 1 Wherein r=r 1 ＝-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) 19 (CH 2 CH(CH 3 )O) 11 OH。
(3) Preparation of organosilicon surfactant for single-component polyurethane foam
The second polyether modified organosilicon, the first copolymer (dipropylene glycol) and the second copolymer (dipropylene glycol are used as an initiator, the molecular weight is 1500) are mixed according to different proportions in the table 8, and the mixture is stirred for 1h at 50 ℃ to obtain different organosilicon surfactant samples for the single-component polyurethane foam joint filling agent.
Table 8 evaluation of Performance of comparative example 2 formulation (weight percent,%) and corresponding product
As can be seen from Table 8, the first polyether-modified silicone and the second polyether-modified silicone of comparative example 1 were weaker in their corresponding properties and smaller in the control range than those containing both the first polyether-modified silicone and the second polyether-modified silicone under the conditions where the second polyether-modified silicone was present in the same total content of polyether-modified silicone species.
In summary, the application can increase the effective regulation and control range of the open-cell property and stability of the single-component polyurethane foam joint mixture by adopting the first polyether modified organic silicon and the second polyether modified organic silicon which are different in specific structures to be matched with each other, so that the control of the fine cell degree, the stability and the extension meter is realized, and the method has more advantages compared with the single polyether modified organic silicon, and provides a research foundation for effectively regulating and controlling the dimensional stability of the single-component polyurethane foam.
The obtained organic silicon surfactant plays a positive role in effectively regulating and controlling the surface, internal pore structure, dimensional stability and the like of the single-component polyurethane foam, and provides a new thought for the synthesis of the organic silicon surfactant for the single-component polyurethane foam joint mixture. Meanwhile, the preparation method of the surfactant is simple, easy to operate and suitable for industrial production.
The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, but various modifications and variations can be made to the present invention by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (13)
1. An organosilicon surfactant, characterized in that the organosilicon surfactant comprises, in parts by weight, 10-60 parts of a first polyether modified organosilicon and 10-65 parts of a second polyether modified organosilicon;
the structural formula of the first polyether modified organosilicon isWherein, the value of m is 15-35, the value of n is 1-8, and the value of m+n is 16-38; r has the structure of-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) a (CH 2 CH(CH 3 )O) b R 2 ，R 1 The values of =r, a are 1-20, b are 1-20, and a+b are 5-30, R 2 Is an alkyl group having 1 to 4 carbon atoms;
the structural formula of the second polyether modified organosilicon isWherein, the value of p is 40-70, the value of q is 5-20, and the value of p+q is 45-80; r is R 4 Is of the structure-CH 2 CH 2 CH 2 O(CH 2 CH 2 O) c (CH 2 CH(CH 3 )O) d R 5 ，R 3 Is CH 3 Or R is 3 ＝R 4 Wherein c has a value of 1-25, d has a value of 1-25, and c+d has a value of 15-40, R 5 is-OH;
the silicone surfactant further comprises no more than 15 parts of a first copolymer having terminal hydroxyl groups derived from a polyhydroxy compound; the first copolymer is a polyether polyol having a molecular weight of less than 300;
the silicone surfactant further comprises no more than 15 parts of a second copolymer having terminal hydroxyl groups derived from a polyhydroxy compound; the second copolymer is polyether polyol with molecular weight higher than 1000;
the organosilicon surfactant is used for preparing a one-component polyurethane foam joint mixture.
2. The silicone surfactant according to claim 1, wherein the total amount of the first polyether modified silicone and the second polyether modified silicone is 70-100 parts.
3. The silicone surfactant of claim 1, wherein the first copolymer has a molecular weight of 50-300.
4. The silicone surfactant of claim 1, wherein the second copolymer has a molecular weight of 1000 to 3000.
5. The silicone surfactant according to claim 1, wherein the silicone surfactant comprises 20 to 55 parts of the first polyether-modified silicone, 20 to 65 parts of the second polyether-modified silicone, 5 to 15 parts of the first copolymer, and 5 to 15 parts of the second copolymer per 100 parts of the silicone surfactant.
6. The silicone surfactant according to claim 5, comprising 25 parts of the first polyether modified silicone, 65 parts of the second polyether modified silicone, 5 parts of the first copolymer, and 5 parts of the second copolymer per 100 parts of the silicone surfactant.
7. A method of preparing a silicone surfactant according to any one of claims 1 to 6, comprising the steps of: and mixing the components of the organic silicon surfactant according to the proportion.
8. The preparation method according to claim 7, wherein the first polyether modified organosilicon and the second polyether modified organosilicon are obtained by mixing and reacting hydrogen-containing silicone oil with allyl polyether, chloroplatinic acid catalyst and cocatalyst.
9. The preparation method according to claim 8, wherein the hydrogen-containing silicone oil, the allyl polyether, the chloroplatinic acid catalyst and the cocatalyst are reacted at 70-150 ℃ for 2-10 hours under normal pressure.
10. The preparation method according to claim 9, wherein the hydrogen-containing silicone oil is obtained by reacting octamethyl cyclotetrasiloxane, high hydrogen-containing silicone oil and hexamethyldisiloxane as raw materials or octamethyl cyclotetrasiloxane, high hydrogen-containing silicone oil and 1, 3-tetramethyldisiloxane as raw materials under the action of an acidic catalyst.
11. The preparation method according to claim 10, wherein the raw material of hydrogen-containing silicone oil is reacted under the action of an acidic catalyst at 30-90 ℃ for 5-8 hours.
12. Use of a silicone surfactant according to any one of claims 1 to 5 for the preparation of a one-component polyurethane foam caulking agent.
13. A one-component polyurethane foam caulking agent, characterized in that the raw material for preparing the one-component polyurethane foam caulking agent contains the organic silicon surfactant according to any one of claims 1 to 5.
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