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High-modulus silane-terminated polymer resin windshield adhesive and preparation method thereof

A silane-capped, windshield technology, applied in the field of sealants, can solve the problems of aging cracks, low tear strength, poor finish, etc., and achieve good aging resistance

Inactive Publication Date: 2021-03-23
ZHEJIANG HUANGMA TECH +3
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the applicant found that the traditional polyurethane sealant is often used as a windshield sealant for car windows. Because of the isocyanate contained in its molecules, bubbles will emerge during the curing process, and a primer is often required during the construction process, and it is weather-resistant properties, UV resistance are weak, prone to aging and chapping, etc.; traditional silicone sealants have low tear strength, will pollute the substrate, and have disadvantages such as poor paintability

Method used

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  • High-modulus silane-terminated polymer resin windshield adhesive and preparation method thereof
  • High-modulus silane-terminated polymer resin windshield adhesive and preparation method thereof
  • High-modulus silane-terminated polymer resin windshield adhesive and preparation method thereof

Examples

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preparation example Construction

[0025] Such as figure 1 Shown in, the preparation method of above-mentioned high modulus silane-terminated polymer resin windshield glue of the present invention comprises the following steps:

[0026] Step S100. First add silane-terminated polymer resin, plasticizer, inorganic solid powder, anti-ultraviolet absorber and light stabilizer in sequence, and pre-stir at low speed; then add color paste and stir under high-speed vacuum conditions to obtain the first A mixture of materials; wherein, it is preferred to add silane-terminated polymer resin, plasticizer, inorganic solid powder, anti-ultraviolet absorber and light stabilizer to the double planetary mixer successively for low-speed pre-stirring and high-speed stirring under vacuum conditions, Moreover, the time of the low-speed pre-stirring is preferably 10 minutes, the time of the stirring under the high-speed vacuum condition is preferably 2-3 hours, and the temperature during stirring under the high-speed vacuum conditi...

Embodiment 1

[0032] The high modulus silane-terminated polymer resin windshield glue of Example 1 of the present invention was prepared according to the components and mass percentages in Table 1.

[0033] Table 1

[0034]

[0035]

[0036] The preparation method of the high-modulus silane-terminated polymer resin windshield glue described in embodiment 1 may further comprise the steps:

[0037] (1) Add silane-terminated polymer resin, plasticizer, inorganic solid powder, anti-ultraviolet absorber and light stabilizer to the double planetary mixer in sequence for pre-stirring at low speed for 10 minutes at a stirring speed of 10-20r / min; After the slurry is stirred under high-speed vacuum conditions, the stirring is turned on and dispersed for 2 to 3 hours, the stirring speed is 35 to 55 r / min, the dispersion rate is 350 to 550 r / min, and the temperature is controlled at 95 ° C to 105 ° C to obtain the first mixed material;

[0038] (2) In the first mixed material, add water remover...

Embodiment 2

[0041] The high-modulus silane-terminated polymer resin windshield adhesive described in Example 2 of the present invention was prepared according to the components and mass percentages in Table 2.

[0042] Table 2

[0043]

[0044] The preparation method of the high modulus silane-terminated polymer resin windshield glue described in embodiment 2 is the same as embodiment 1, comprising the following steps:

[0045] (1) Add silane-terminated polymer resin, plasticizer, inorganic solid powder, anti-ultraviolet absorber and light stabilizer to the double planetary mixer in sequence for pre-stirring at low speed for 10 minutes at a stirring speed of 10-20r / min; After the slurry is stirred under high-speed vacuum conditions, the stirring is turned on and dispersed for 2 to 3 hours, the stirring speed is 35 to 55 r / min, the dispersion rate is 350 to 550 r / min, and the temperature is controlled at 95 ° C to 105 ° C to obtain the first mixed material;

[0046] (2) In the first mi...

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Abstract

The invention relates to a high-modulus silane-terminated polymer resin windshield adhesive and a preparation method thereof. The high-modulus silane-terminated polymer resin windshield adhesive is prepared from the following components in parts by weight: 30 to 50 parts of silane-terminated polymer resin, 15 to 30 parts of a plasticizer, 30 to 50 parts of inorganic solid powder, 0.1 to 1.5 partsof a light stabilizer, 0.1 to 1.5 parts of an anti-ultraviolet absorbent, 0.1 to 3.0 parts of color paste, 1.0 to 3.5 parts of a water removal agent, 0.5 to 3.0 parts of a silane coupling agent and 0.1 to 1.0 part of a catalyst. Thus, molecules of the high-modulus silane-terminated polymer resin windshield adhesive do not contain isocyanate, and silane bonds of terminal groups are easy for a watervapor cross-linking reaction in 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 andadhesion, and can meet the requirements of the modern automobile industry.

Description

technical field [0001] The invention belongs to the technical field of sealants, and in particular relates to a high-modulus silane-terminated polymer resin windshield glue and a preparation method thereof. Background technique [0002] At present, automobiles have become an important means of transportation in people's daily life. With the gradual enhancement of people's awareness of environmental protection, the requirements for automobile materials are also getting higher and higher. However, the applicant found that the traditional polyurethane sealant is often used as a windshield sealant for car windows. Because of the isocyanate contained in its molecules, bubbles will emerge during the curing process, and a primer is often required during the construction process, and it is weather-resistant Sex, anti-ultraviolet ability are weak, prone to aging and chapping, etc.; traditional silicone sealants have low tear strength, will pollute the substrate, and have disadvantage...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J171/02C09J11/04C09J11/06C09J11/08
CPCC09J171/02C09J11/04C09J11/06C09J11/08C08L2205/025C08K2201/011C08K2003/265C08L71/02C08K3/26C08K3/36C08K5/12C08K5/5425C08K5/544C08K13/02
Inventor 章勇坚王伟松董楠王俊刘佳
Owner ZHEJIANG HUANGMA TECH