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Method for synthesizing special silane modified STP resin with high adhesion performance

A synthesis method and silane modification technology, applied in the direction of adhesive types, polyether adhesives, adhesives, etc., can solve the problem that the bonding strength cannot reach the customer, achieve low production cost, high bonding strength, Well-designed effects

Inactive Publication Date: 2019-05-07
江苏瑞洋安泰新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Although the silane-modified polyether on the market can achieve good adhesive performance without primer, such adhesive strength often fails to meet customer requirements.

Method used

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  • Method for synthesizing special silane modified STP resin with high adhesion performance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0027] The modified STP resin is made into a sealant for adhesion testing

[0028] Tensile shear strength test standard: GB 7124-86 adhesive tensile shear test method

[0029] Substrate 1: Stainless Steel - Stainless Steel

[0030] Substrate 2: aluminum alloy-aluminum alloy

Embodiment 1

[0032] The formula of the sealant is as follows: 100 parts of modified STP (1 part of special silane, 99 parts of STP resin), 80 parts of DINP plasticizer, 1 part of vinyltrimethoxysilane, 100 parts of TAKEHARA light calcium carbonate, 100 parts Part OMYACARB heavy calcium carbonate, 50 parts titanium dioxide, 4 parts silane coupling agent KH792, 1 part DBDTL catalyst;

Embodiment 2

[0034] The formula of the sealant is as follows: 100 parts of modified STP (2 parts of special silane, 98 parts of STP resin), 80 parts of DINP plasticizer, 1 part of vinyltrimethoxysilane, 100 parts of TAKEHARA light calcium carbonate, 100 parts Part OMYACARB heavy calcium carbonate, 50 parts titanium dioxide, 4 parts silane coupling agent KH792, 1 part DBDTL catalyst;

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Abstract

The invention relates to a method for synthesizing a special silane modified STP resin with high adhesion performance, belonging to the technical field of chemical industry. Isophorone diisocyanate isadded to a 500 ml glass reactor while stirring is started; a silane coupling agent KH540 is added dropwise to the reactor, and the reaction temperature is normal, the dropwise reaction time is about3 hours, and the original temperature of the system is maintained; after curing is performed for 1 hour, the reaction of special silane is completed; then the STP resin is added into the reactor and stirred for about half an hour to form a special silane modified STP resin with high adhesion performance. The process is simple and convenient to operate, the modified STP resin has good adhesion andhigh adhesion strength, and can be used in construction, industry and product assembly.

Description

technical field [0001] The invention relates to a method for synthesizing special silane-modified STP resin with high adhesive performance, belonging to the technical field of chemical industry. Background technique [0002] Silane-modified polyether (STP) has the characteristics of health and environmental protection, no pollution, good bonding performance, good weather resistance, and can be painted; it is widely used in the fields of construction, industry and product assembly. [0003] Although the silane-modified polyether on the market can achieve good adhesive performance without primer, such adhesive strength often fails to meet customer requirements. Contents of the invention [0004] The object of the present invention is to aim at the defects and deficiencies of the prior art, and provide a method for synthesizing a special silane-modified STP resin with reasonable design and convenient operation and high adhesive performance. [0005] In order to achieve the a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/336C09J171/00
Inventor 张旭建黄兵万伟伟宗雅君
Owner 江苏瑞洋安泰新材料科技有限公司