CN112538332A - High-modulus silane-terminated polymer resin windshield adhesive and preparation method thereof - Google Patents
High-modulus silane-terminated polymer resin windshield adhesive and preparation method thereof Download PDFInfo
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J171/00—Adhesives based on polyethers obtained by reactions forming an ether link in the main chain; Adhesives based on derivatives of such polymers
- C09J171/02—Polyalkylene oxides
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/04—Non-macromolecular additives inorganic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/02—Non-macromolecular additives
- C09J11/06—Non-macromolecular additives organic
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09J—ADHESIVES; NON-MECHANICAL ASPECTS OF ADHESIVE PROCESSES IN GENERAL; ADHESIVE PROCESSES NOT PROVIDED FOR ELSEWHERE; USE OF MATERIALS AS ADHESIVES
- C09J11/00—Features of adhesives not provided for in group C09J9/00, e.g. additives
- C09J11/08—Macromolecular additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K3/00—Use of inorganic substances as compounding ingredients
- C08K3/18—Oxygen-containing compounds, e.g. metal carbonyls
- C08K3/24—Acids; Salts thereof
- C08K3/26—Carbonates; Bicarbonates
- C08K2003/265—Calcium, strontium or barium carbonate
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
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- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/02—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group
- C08L2205/025—Polymer mixtures characterised by other features containing two or more polymers of the same C08L -group containing two or more polymers of the same hierarchy C08L, and differing only in parameters such as density, comonomer content, molecular weight, structure
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Abstract
The invention relates to a high modulus silane terminated polymer resin windshield adhesive and a preparation method thereof, wherein the high modulus silane terminated polymer resin windshield adhesive is prepared from the following components in parts by weight: 30-50 parts of silane-terminated polymer resin, 15-30 parts of plasticizer, 30-50 parts of inorganic solid powder, 0.1-1.5 parts of light stabilizer, 0.1-1.5 parts of anti-ultraviolet absorbent, 0.1-3.0 parts of color paste, 1.0-3.5 parts of water removing agent, 0.5-3.0 parts of silane coupling agent and 0.1-1.0 part of catalyst. Therefore, the high-modulus silane-terminated polymer resin windshield adhesive does not contain isocyanate in molecules, and meanwhile, silane bonds of terminal groups are easy to perform a water vapor crosslinking reaction in the air to generate stable-Si-O-Si-bonds, so that the high-modulus silane-terminated polymer resin windshield adhesive has good aging resistance, weather resistance and adhesion, and can meet the requirements of the modern automobile industry.
Description
Technical Field
The invention belongs to the technical field of sealants, and particularly relates to a high-modulus silane-terminated polymer resin windshield adhesive and a preparation method thereof.
Background
At present, automobiles become important transportation means for daily life of people, and along with the gradual enhancement of environmental awareness of people, the requirements on automobile materials are higher and higher. However, the applicant found that: the traditional polyurethane sealant is usually used as a vehicle window windshield sealant, and because isocyanate is contained in molecules of the traditional polyurethane sealant, bubbles emerge in the curing process, a primer is often required in the construction process, and the traditional polyurethane sealant is poor in weather resistance and ultraviolet resistance, and is easy to age, chap and the like; the traditional silicone sealant has the defects of low tearing strength, substrate pollution, poor finishing property and the like.
Disclosure of Invention
In order to solve the problems in the prior art, the invention provides a high-modulus silane-terminated polymer resin windshield adhesive which does not contain isocyanate in molecules, has stable-Si-O-Si-bond generated by the cross-linking reaction of water vapor in the air of a silane bond of a terminal group and has good aging resistance, weather resistance and adhesion, and a preparation method of the high-modulus silane-terminated polymer resin windshield adhesive.
In order to solve the technical problems, the invention adopts the following technical scheme:
the invention discloses a high-modulus silane-terminated polymer resin windshield adhesive which is prepared from the following components in parts by weight:
further, the silane-terminated polymer resin has a terminal group of dimethoxymethylsilyl or trimethoxysilyl group, a main chain of polyoxypropylene ether, and a viscosity of 9000 to 20000 mPas.
Further, the plasticizer is one of epoxy acetyl castor oil, phthalate, polyoxypropylene ether PPG, or a combination of phthalate and polyoxypropylene ether; at least one of diisononyl phthalate and PPG2000 is preferable, and the polyoxypropylene ether is preferably a polyoxypropylene ether having a molecular weight of 1000 to 5000.
Further, the inorganic solid powder comprises an inert filler, an active filler and hydrophobic fumed silica; wherein the inert filler is heavy calcium carbonate with the average particle size of 2.0-3.0 mu m and the specific surface area of 1.0-3.0 m2The active filler is fatty acid modified nanometer active calcium carbonate, D50 is less than or equal to 0.08 mu m, and the water content is less than or equal to 0.50 percent.
Further, the ultraviolet light absorber is Tinuvin327, and the light stabilizer is Tinuvin 770.
Further, the color paste is at least one of self-made carbon black, titanium dioxide and iron oxide.
Further, the water removing agent is one of vinyl trimethoxy silane and diisobutyl ether trimethoxy silane, and the vinyl trimethoxy silane is preferred.
Further, the silane coupling agent is at least one of gamma-aminopropyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane and bis (trimethoxysilylpropyl) amine; the catalyst is one of dibutyl tin dilaurate, dioctyl tin dilaurate and dibutyl tin diacetylacetonate.
The invention also provides a preparation method of the high-modulus silane-terminated polymer resin windshield adhesive, which comprises the following steps:
a1. firstly, sequentially adding silane-terminated polymer resin, a plasticizer, inorganic solid powder, an anti-ultraviolet absorbent and a light stabilizer, and pre-stirring at a low speed; then adding color paste and stirring under a high-speed vacuum condition to obtain a first mixed material;
a2. adding a water removing agent and a silane coupling agent into the first mixed material, mixing and stirring until the first mixed material is fully reacted to obtain a second mixed material;
a3. and adding a catalyst into the second mixed material, continuously mixing and stirring, continuously dehydrating and stirring under a vacuum condition, and cooling at a constant temperature to obtain the high-modulus silane-terminated polymer resin windshield adhesive.
Further, in the step a1, the low-speed pre-stirring time is 10min, the stirring time under the high-speed vacuum condition is 2-3 hours, and the stirring temperature under the high-speed vacuum condition is controlled to be 95-105 ℃; when the water removing agent and the silane coupling agent are added in the step a2, the temperature of the first mixed material is below 40 ℃, and the reaction time of mixing and stirring is 10-20 min; in the step a3, the mixing and stirring time is 5-10min, and the dehydrating and stirring time is 10-15 min.
The invention mainly has the following beneficial effects:
by adopting the technical scheme, the molecule does not contain isocyanate, and the silane bond of the terminal group is easy to carry out the water vapor crosslinking reaction in the air to generate a stable-Si-O-Si-bond, so that the modified epoxy resin has good ageing resistance, weather resistance and adhesion, and can meet the requirements of the modern automobile industry.
Drawings
FIG. 1 is a schematic flow diagram of a method of making a high modulus silane terminated polymeric resin windshield adhesive according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
The invention relates to a high-modulus silane-terminated polymer resin windshield adhesive which is prepared from the following components in parts by weight: 30-50 parts of silane-terminated polymer resin, 15-30 parts of plasticizer, 30-50 parts of inorganic solid powder, 0.1-1.5 parts of light stabilizer, 0.1-1.5 parts of anti-ultraviolet absorbent, 0.1-3.0 parts of color paste, 1.0-3.5 parts of water removing agent, 0.5-3.0 parts of silane coupling agent and 0.1-1.0 part of catalyst. Wherein the end group of the silane-terminated polymer resin is dimethoxymethylsilyl or trimethoxysilyl, the main chain is polyoxypropylene ether, and the viscosity of the silane-terminated polymer resin is 9000-20000 mPa & s; the plasticizer is one of epoxy acetyl castor oil, phthalate and polyoxypropylene ether PPG, or a combination of phthalate and polyoxypropylene ether (in a preferred scheme, the plasticizer is at least one of diisononyl phthalate and PPG 2000), and the polyoxypropylene ether is preferably polyoxypropylene ether with the molecular weight of 1000-5000; the inorganic solid powder comprises an inert filler, an active filler and hydrophobic fumed silica; wherein the inert filler is heavy calcium carbonate with the average particle size of 2.0-3.0 mu m and the specific surface area of 1.0-3.0 m2The active filler is fatty acid modified nano active calcium carbonate, the D50 is less than or equal to 0.08 mu m, and the moisture content is less than or equal to 0.50 percent; the ultraviolet resistant absorber is Tinuvin327, and the light stabilizer is Tinuvin 770; the color paste is at least one of self-made carbon black (color paste prepared by adding a certain amount of diisononyl phthalate into powdery solid carbon black), titanium dioxide and ferric oxide; the water removing agent is vinyl trimethoxy silaneDiisobutyl ether trimethoxy silane, preferably vinyl trimethoxy silane; the silane coupling agent is at least one of gamma-aminopropyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane and bis (trimethoxysilylpropyl) amine; the catalyst is one of dibutyl tin dilaurate, dioctyl tin dilaurate and dibutyl tin diacetylacetonate.
As shown in fig. 1, the preparation method of the high modulus silane terminated polymer resin windshield adhesive of the invention comprises the following steps:
s100, sequentially adding silane-terminated polymer resin, a plasticizer, inorganic solid powder, an anti-ultraviolet absorbent and a light stabilizer, and pre-stirring at a low speed; then adding color paste and stirring under a high-speed vacuum condition to obtain a first mixed material; preferably, silane-terminated polymer resin, a plasticizer, inorganic solid powder, an anti-ultraviolet absorbent and a light stabilizer are sequentially added into a double-planetary stirrer to be stirred at a low speed in a pre-stirring mode and at a high speed under vacuum, the time for stirring at the low speed is preferably 10min, the time for stirring at the high speed under vacuum is preferably 2-3 h, and the temperature during stirring at the high speed under vacuum is preferably controlled at 95-105 ℃.
S200, adding a water removing agent and a silane coupling agent into the first mixed material, mixing and stirring until the first mixed material is fully reacted to obtain a second mixed material; when the water removing agent and the silane coupling agent are added, the temperature of the first mixed material is below 40 ℃, and the reaction time of mixing and stirring is 10-20 min.
S300, adding a catalyst into the second mixed material, continuously mixing and stirring, continuously dehydrating and stirring under a vacuum condition, and cooling at a constant temperature to obtain the high-modulus silane-terminated polymer resin windshield adhesive; wherein the mixing and stirring time is 5-10min, and the dehydrating and stirring time is 10-15 min.
The high-modulus silane-terminated polymer resin windshield adhesive does not contain isocyanate in molecules, and silane bonds of terminal groups are easy to perform cross-linking reaction with water vapor in the air to generate stable-Si-O-Si-bonds.
The high modulus silane terminated polymer resin windshield adhesive and the preparation method of the invention are further described by specific examples and comparative examples.
Example 1
The high modulus silane terminated polymer resin windshield adhesive of example 1 of the present invention was prepared according to the components and mass percentages of table 1.
TABLE 1
The method of making the high modulus silane terminated polymeric resin windshield adhesive of example 1, comprising the steps of:
(1) sequentially adding silane-terminated polymer resin, a plasticizer, inorganic solid powder, an anti-ultraviolet absorbent and a light stabilizer into a double-planetary stirrer, and pre-stirring at a low speed for 10min to 20 r/min; adding the self-made color paste, stirring under a high-speed vacuum condition, and simultaneously opening stirring and dispersing for 2-3 hours, wherein the stirring speed is 35-55 r/min, the dispersing speed is 350-550 r/min, and the temperature is controlled at 95-105 ℃ to obtain a first mixed material;
(2) after the temperature is cooled to below 40 ℃ at constant temperature, adding a water removing agent and a silane coupling agent into the first mixed material, and reacting for 10-20 min under mixing and stirring to obtain a second mixed material;
(3) and adding a catalyst into the second mixed material, continuously mixing and stirring for 5-10min, then continuously dehydrating and stirring for 10-15 min under a vacuum condition, and cooling at a constant temperature to obtain the high-modulus silane-terminated polymer resin windshield adhesive with uniform dispersion and good mechanical properties.
Example 2
The high modulus silane terminated polymer resin windshield adhesive of example 2 of the present invention was prepared according to the components and mass percentages of table 2.
TABLE 2
The high modulus silane terminated polymeric resin windshield adhesive of example 2 was prepared as in example 1, comprising the steps of:
(1) sequentially adding silane-terminated polymer resin, a plasticizer, inorganic solid powder, an anti-ultraviolet absorbent and a light stabilizer into a double-planetary stirrer, and pre-stirring at a low speed for 10min to 20 r/min; adding the self-made color paste, stirring under a high-speed vacuum condition, and simultaneously opening stirring and dispersing for 2-3 hours, wherein the stirring speed is 35-55 r/min, the dispersing speed is 350-550 r/min, and the temperature is controlled at 95-105 ℃ to obtain a first mixed material;
(2) after the temperature is cooled to below 40 ℃ at constant temperature, adding a water removing agent and a silane coupling agent into the first mixed material, and reacting for 10-20 min under mixing and stirring to obtain a second mixed material;
(3) and adding a catalyst into the second mixed material, continuously mixing and stirring for 5-10min, then continuously dehydrating and stirring for 10-15 min under a vacuum condition, and cooling at a constant temperature to obtain the high-modulus silane-terminated polymer resin windshield adhesive with uniform dispersion and good mechanical properties.
Example 3
The high modulus silane terminated polymer resin windshield adhesive of example 3 of the present invention was prepared according to the components and mass percentages in table 3.
TABLE 3
The high modulus silane terminated polymeric resin windshield adhesive of example 3 was prepared as in example 1, comprising the steps of:
(1) sequentially adding silane-terminated polymer resin, a plasticizer, inorganic solid powder, an anti-ultraviolet absorbent and a light stabilizer into a double-planetary stirrer, and pre-stirring at a low speed for 10min to 20 r/min; adding color paste, stirring under a high-speed vacuum condition, and simultaneously opening stirring and dispersing for 2-3 hours, wherein the stirring speed is 35-55 r/min, the dispersing speed is 350-550 r/min, and the temperature is controlled at 95-105 ℃ to obtain a first mixed material;
(2) after the temperature is cooled to below 40 ℃ at constant temperature, adding a water removing agent and a silane coupling agent into the first mixed material, and reacting for 10-20 min under mixing and stirring to obtain a second mixed material;
(3) and adding a catalyst into the second mixed material, continuously mixing and stirring for 5-10min, then continuously dehydrating and stirring for 10-15 min under a vacuum condition, and cooling at a constant temperature to obtain the high-modulus silane-terminated polymer resin windshield adhesive with uniform dispersion and good mechanical properties.
Example 4
The high modulus silane terminated polymer resin windshield adhesive of example 4 of the present invention was prepared according to the components and mass percentages of table 4.
TABLE 4
The high modulus silane terminated polymeric resin windshield adhesive of example 4 was prepared as in example 1, comprising the steps of:
(1) sequentially adding silane-terminated polymer resin, a plasticizer, inorganic solid powder, an anti-ultraviolet absorbent and a light stabilizer into a double-planetary stirrer, and pre-stirring at a low speed for 10min to 20 r/min; adding the self-made color paste, stirring under a high-speed vacuum condition, and simultaneously opening stirring and dispersing for 2-3 hours, wherein the stirring speed is 35-55 r/min, the dispersing speed is 350-550 r/min, and the temperature is controlled at 95-105 ℃ to obtain a first mixed material;
(2) after the temperature is cooled to below 40 ℃ at constant temperature, adding a water removing agent and a silane coupling agent into the first mixed material, and reacting for 10-20 min under mixing and stirring to obtain a second mixed material;
(3) and adding a catalyst into the second mixed material, continuously mixing and stirring for 5-10min, then continuously dehydrating and stirring for 10-15 min under a vacuum condition, and cooling at a constant temperature to obtain the high-modulus silane-terminated polymer resin windshield adhesive with uniform dispersion and good mechanical properties.
Example 5
The high modulus silane terminated polymer resin windshield adhesive of example 5 of the present invention was prepared according to the components and mass percentages of table 5.
TABLE 5
The high modulus silane terminated polymeric resin windshield adhesive of example 5 was prepared as in example 1, comprising the steps of:
(1) sequentially adding silane-terminated polymer resin, a plasticizer, inorganic solid powder, an anti-ultraviolet absorbent and a light stabilizer into a double-planetary stirrer and pre-stirring at a low speed for 10 min; adding color paste, and then stirring for 40-50 min under a high-speed vacuum condition, wherein the temperature is controlled to be 95-105 ℃, so as to obtain a first mixed material;
(2) after the temperature is cooled to below 40 ℃ at constant temperature, adding a water removing agent and a silane coupling agent into the first mixed material, and reacting for 10-20 min under mixing and stirring to obtain a second mixed material;
(3) and adding a catalyst into the second mixed material, continuously mixing and stirring for 5-10min, then continuously dehydrating and stirring for 10-15 min under a vacuum condition, and cooling at a constant temperature to obtain the high-modulus organosilicon modified polyether sealant for the vehicle window and windshield, which is uniform in dispersion and good in mechanical property.
The high modulus silane terminated polymer resin windshield adhesive prepared in examples 1-5 was subjected to the following performance tests, and the specific test results are shown in table 6.
Firstly, according to GBT 22083-;
the surface drying time is measured according to the measurement specification of the surface drying time in GB/T13477.5-2002 test method for building sealing materials;
hardness according to GB/T531.1-2008 "vulcanized rubber or thermoplastic rubber Press hardness test method part I: the shore hardness test specification in shore durometer method (shore hardness) was determined;
100% tensile modulus, tensile strength and elongation at break, according to GB/T528-1998 Standard test of determination of tensile stress and strain Properties of vulcanized rubber or thermoplastic rubber, a tensile tester is purchased from Shimadzu import tensile tester-AGS-X model Japan;
the tear strength was tested according to the requirements specified in GBT 529-.
Table 6 (results of example Performance test)
As can be seen from Table 6, the high modulus silane terminated polymer resin windshield adhesive prepared in examples 1-5 has good aging resistance, weather resistance and adhesion, and can meet the requirements of the modern automobile industry.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. The high-modulus silane-terminated polymer resin windshield adhesive is characterized by being prepared from the following components in parts by weight:
2. the high modulus silane terminated polymer resin windshield glue of claim 1, wherein the silane terminated polymer resin has end groups of dimethoxymethylsilyl or trimethoxysilyl groups, a main chain of polyoxypropylene ether, and a viscosity of 9000 to 20000 mPa-s.
3. The high modulus silane terminated polymeric resin windshield paste of claim 1, wherein the plasticizer is one of an epoxy acetyl castor oil, a phthalate ester, a polyoxypropylene ether PPG, or a combination of a phthalate ester and a polyoxypropylene ether; at least one of diisononyl phthalate and PPG2000 is preferable, and the polyoxypropylene ether is preferably a polyoxypropylene ether having a molecular weight of 1000 to 5000.
4. The high modulus silane terminated polymeric resin windshield paste of claim 1, 2, or 3, wherein the inorganic solids comprise inert fillers, reactive fillers, and hydrophobic fumed silica; wherein the inert filler is heavy calcium carbonate with the average particle size of 2.0-3.0 mu m and the specific surface area of 1.0-3.0 m2The active filler is fatty acid modified nanometer active calcium carbonate, D50 is less than or equal to 0.08 mu m, and the water content is less than or equal to 0.50 percent.
5. The high modulus silane terminated polymeric resin windshield paste of claim 1, wherein the uv absorber is Tinuvin327 and the light stabilizer is Tinuvin 770.
6. The high modulus silane terminated polymer resin windshield adhesive of claim 1, wherein the color paste is at least one of home-made carbon black, titanium dioxide and iron oxide.
7. The high modulus silane terminated polymeric resin windshield paste of claim 1, wherein the water scavenger is one of vinyltrimethoxysilane and diisobutyl ether trimethoxysilane, preferably vinyltrimethoxysilane.
8. The high modulus silane terminated polymeric resin windshield paste of claim 1, wherein the silane coupling agent is at least one of gamma-aminopropyltrimethoxysilane, N- (beta-aminoethyl) -gamma-aminopropyltriethoxysilane, bis (trimethoxysilylpropyl) amine; the catalyst is one of dibutyl tin dilaurate, dioctyl tin dilaurate and dibutyl tin diacetylacetonate.
9. A method of making a high modulus silane terminated polymeric resin windshield paste as defined in any one of claims 1 to 8, comprising the steps of:
a1. firstly, sequentially adding silane-terminated polymer resin, a plasticizer, inorganic solid powder, an anti-ultraviolet absorbent and a light stabilizer, and pre-stirring at a low speed; then adding color paste and stirring under a high-speed vacuum condition to obtain a first mixed material;
a2. adding a water removing agent and a silane coupling agent into the first mixed material, mixing and stirring until the first mixed material is fully reacted to obtain a second mixed material;
a3. and adding a catalyst into the second mixed material, continuously mixing and stirring, continuously dehydrating and stirring under a vacuum condition, and cooling at a constant temperature to obtain the high-modulus silane-terminated polymer resin windshield adhesive.
10. The preparation method according to claim 9, wherein the low-speed pre-stirring time in the step a1 is 10min, the stirring time under the high-speed vacuum condition is 2-3 hours, and the stirring temperature under the high-speed vacuum condition is controlled to be 95-105 ℃; when the water removing agent and the silane coupling agent are added in the step a2, the temperature of the first mixed material is below 40 ℃, and the reaction time of mixing and stirring is 10-20 min; in the step a3, the mixing and stirring time is 5-10min, and the dehydrating and stirring time is 10-15 min.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115806792A (en) * | 2022-12-16 | 2023-03-17 | 杭州之江有机硅化工有限公司 | Windshield adhesive and preparation method thereof |
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| CN108130033A (en) * | 2017-12-19 | 2018-06-08 | 广东省石油与精细化工研究院 | A kind of silane-modified block polyether elastic sealant of high intensity and preparation method thereof |
| CN110408359A (en) * | 2019-08-19 | 2019-11-05 | 浙江皇马科技股份有限公司 | A kind of silane-terminated polyether sealant and its preparation method and application |
| US20200317853A1 (en) * | 2017-12-22 | 2020-10-08 | Henkel IP & Holding GmbH | Silane-terminated Polyurethane Crosslinking Polymer for High Tensile Strength Adhesive |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108130033A (en) * | 2017-12-19 | 2018-06-08 | 广东省石油与精细化工研究院 | A kind of silane-modified block polyether elastic sealant of high intensity and preparation method thereof |
| US20200317853A1 (en) * | 2017-12-22 | 2020-10-08 | Henkel IP & Holding GmbH | Silane-terminated Polyurethane Crosslinking Polymer for High Tensile Strength Adhesive |
| CN110408359A (en) * | 2019-08-19 | 2019-11-05 | 浙江皇马科技股份有限公司 | A kind of silane-terminated polyether sealant and its preparation method and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115806792A (en) * | 2022-12-16 | 2023-03-17 | 杭州之江有机硅化工有限公司 | Windshield adhesive and preparation method thereof |
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Application publication date: 20210323 |