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

A silane-terminated, sealing and bonding technology, used in adhesives, polyether adhesives, chemical instruments and methods, etc., to achieve the effect of flexible ratio range

Inactive Publication Date: 2012-01-04
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
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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 double-component silane-terminated seal adhesive which comprises a component A and a component B, wherein the component A is prepared from silane-terminated prepolymer, plasticizer, thixotropic agent, ultraviolet absorbent, ultraviolet stabilizer, moisture remover, accelerator, curing agent, colorant, bulking filler and reinforcing filler; the component B is prepared from silane-terminated prepolymer, plasticizer, cocatalyst, surfactant and water absorbent; and the component A and the component B are mixed in a weight ratio of 5:1-49:1. In the invention, the proportioning range of the double-component system is more flexible, and the consumption of the component B is flexible and low, so that the properties of the double-component system are closer to and even superior to those of the single component A in the curing process after reducing the A\B mixture.

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 Applications(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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