Good caking property two-component hollow glass silicone sealant

A two-component, sealant technology, applied in the field of sealants, can solve problems such as unimproved and large gaps, and achieve the effects of preventing sagging, improving service life, and high thixotropy

Inactive Publication Date: 2015-11-04
TIANJIN HONGTAI GLASS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Through careful reading, the applicant found that when using accelerators for the above-mentioned related colloids, they all adopt the addition of accelerators in the process of gelation, and the problems of accelerators in this application have not been improved, and the gap with the scheme provided by this application is relatively large Big

Method used

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  • Good caking property two-component hollow glass silicone sealant
  • Good caking property two-component hollow glass silicone sealant
  • Good caking property two-component hollow glass silicone sealant

Examples

Experimental program
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Effect test

Embodiment 1

[0024] A two-component insulating glass silicone sealant with good adhesion is made by mixing component A and component B, and the weight ratio of component A to component B is 10-:1.

[0025] 1. Component A of silicone two-component sealant and its preparation method

[0026] Add 250-350 parts of 107 silicone rubber (room temperature vulcanized methyl silicone rubber), 15-25 parts of dimethyl silicone oil, and 300-350 parts of nano-active calcium carbonate into the high-speed disperser according to the proportion, and place it for use.

[0027] Add 0.1% thixotropic agent (acrylamide powder) to component A when used.

[0028] 2. Silicone two-component sealant B component and its preparation method

[0029] Put 25-40 parts of simethicone oil and 50-100 parts of carbon black into the kneader, heat for a certain period of time, grind with three-roll machine and mix with 2-5 parts of ethyl orthosilicate, propyl orthosilicate 2 to 5 parts, 2 to 5 parts of dibutyltin dilaurate, 4 ...

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Abstract

The present invention relates to a good caking property two-component hollow glass silicone sealant which is prepared by mixing A and B components, the weight ratio of A and B components is 10 ~ : 1; an adhesion promoter is added into the B component, the adhesion promoter comprises KH550, KH560, KH602 and KH792, the four components are mixedly placed for cross-linking, the calculated weight ratio of KH550: KH560 is 2: 1, the calculated weight ratio of KH602: KH792 is 1: 1, and the calculated weight ratio of KH550: KH602 is 5-6: 1. The silicone rubber two-component sealant uses the bran-new adhesion promoter to overcome the disadvantages of single use of KH550 and KH560, inherits the dual advantages of good adhesion and process performance stability, and has excellent overall performance.

Description

technical field [0001] The invention belongs to the field of sealants, in particular to a two-component hollow glass silicone sealant with good adhesion. Background technique [0002] Silicone two-component sealant has excellent aging resistance, water resistance, oil resistance, heat resistance, chemical resistance, and has the advantages of fast deep curing. It has a wide range of applications, but the commercially available coupling agent (adhesion promoter) is only used in the silicone two-component sealant, which has some shortcomings in the application, such as KH550 (γ-aminopropyltriethoxysilane ), the use of aminopropyl alone is relatively active and has good adhesion to the substrate, but the process has the disadvantages of rapid response and unstable storage. KH560 (γ-glycidyl etheroxypropyltrimethoxysilane), its ring Oxygen has the advantage of stable process performance, but it has poor adhesion to the substrate. [0003] According to the search, it was found ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J183/06C09J183/04C09J11/06C09J11/04
Inventor 杨国华
Owner TIANJIN HONGTAI GLASS CO LTD
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