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Double-component silane-terminated sealing adhesive and preparation method thereof

A silane-terminated, sealed and bonded technology, applied in the direction of adhesives, polyether adhesives, chemical instruments and methods, etc., to achieve the effect of flexible ratio range

Inactive Publication Date: 2014-08-13
TONSAN ADHESIVES INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The disadvantage of such systems is that they are very sensitive to mixing errors, so ideal curing properties can only be obtained when the two components are thoroughly mixed in the correct ratio

Method used

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  • Double-component silane-terminated sealing adhesive and preparation method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0084] Component A:

[0085] Preparation of a one-component silane-modified polyether sealant containing silane-terminated polymer, plasticizer (dioctyl phthalate), calcium carbonate, titanium dioxide, fumed silica, modified organotin for curing agent, etc., the parts by weight ratio of the composition is as follows:

[0086] Silane-terminated polymer 38.5 parts

[0087] Dioctyl phthalate 13.3 parts

[0088] Calcium carbonate 40.2 parts

[0089] Titanium dioxide 4.1 parts

[0090] 0.5 parts of polyamide thixotropic agent

[0091] UV absorber 0.15 parts

[0092] UV stabilizer 0.15 parts

[0093] Fumed silica 2.2 parts

[0094] Vinyltrimethoxysilane 0.3 parts

[0095] N-(β-aminoethyl)-γ-aminopropyltrimethoxysilane 0.5 parts

[0096] Modified organotin 0.1 parts

[0097] During preparation, after adding silane-terminated polymers, dioctyl phthalate, titanium dioxide, ultraviolet absorbers and stabilizers sequentially into a biaxial planetary stirring tank at room temper...

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Abstract

The invention discloses a two-component silane-terminated sealing adhesive. The sealing adhesive includes component A and component B, wherein component A consists of a silane-terminated prepolymer, a plasticizer, a contact Variable agent, UV absorber, UV stabilizer, water scavenger, accelerator, curing agent, colorant, extender filler and reinforcing filler; B component is composed of silane-terminated prepolymer, plasticizer , cocatalyst, surfactant, water absorbent material; wherein, component A and component B are mixed in a weight ratio of 5:1 to 49:1. The proportion range of the two-component system of the present invention is more flexible, and the amount of component B is flexible and small, so that after mixing A\B is reduced to a lesser extent, the performance is closer to or even better than that of component A when it is cured alone.

Description

technical field [0001] The invention relates to a two-component sealing adhesive, in particular to a two-component silane-terminated sealing adhesive with a flexible ratio range and a preparation method thereof, which uses silane-terminated prepolymer as a basic raw material. Background technique [0002] The sealing adhesive containing silane-terminated prepolymer is widely used in civil construction, transportation, automobile, electronic appliances, machinery, chemical industry, light industry and other fields. It is mainly used in the bonding between metal and metal, metal and non-metal Bonding and sealing. Usually people choose single-component sealing adhesive because it is convenient to use, has good flexibility, has low requirements for sizing equipment, and there will be no mixing error and metering error when using it. However, since the vulcanization of the one-component type product is carried out gradually from the surface layer to the inner layer, its curing m...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09J171/00C09J175/04C09K3/10
Inventor 师力李印柏林新松翟海潮王兵
Owner TONSAN ADHESIVES INC
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