Two-component epoxy resin adhesive for stone skin patching and preparation thereof

An epoxy resin and surface repair technology, which is applied in the direction of epoxy resin glue, adhesive, adhesive type, etc., can solve the problems of poor yellowing resistance, large curing shrinkage, poor gloss, etc., and achieve surface gloss High, low curing shrinkage, good yellowing resistance

Active Publication Date: 2008-12-03
HUNAN SHENLI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, unsaturated resin adhesives are mainly used for repairing micro-cracks and ant roads on stone surfaces. This adhesive has the characteristics of fast curing speed, good brushing performance, and low price, and occupies a considerable share in the market; Poor post gloss, poor yellowing resistance, large curing shrinkage
The solvent styrene is highly toxic, which limits its application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] [Example 1] Add 20g of hydrogenated bisphenol A epoxy resin and stir, 70g of E-51 epoxy resin, and mix well, then add 10g of butyl glycidyl ether, and stir for 30 minutes to obtain component A. Add 1g of stabilizer (GW-944) and 1g of ultraviolet absorber (UV-531) to 98g of diethylenetriamine, stir at 60-70°C for 2-3 hours and cool down to room temperature to obtain component B.

[0027] Mix components A and B in a weight ratio of 7:1, mix evenly, apply to the marble surface, and cure for 3 hours at 25°C. After polishing, the gloss of the stone is 96, and irradiate for 4 hours under ultraviolet light. No yellowing.

Embodiment 2

[0028] [Example 2] Add 25g of hydrogenated bisphenol A type epoxy resin to 65g of E-51 epoxy resin, stir, mix evenly, then add 10g of benzyl alcohol, and stir for 30 minutes to obtain component A. Add 1g of light stabilizer (GW-540) and 1g of ultraviolet absorber (UV-327) into 98g of triethylenetetramine, stir at 60-70°C for 2-3 hours, cool down to room temperature, and obtain component B.

[0029] Mix components A and B in a weight ratio of 7:1, mix evenly, apply to the marble surface, and cure at 25°C for 3 hours. After polishing, the gloss of the stone is 95, and irradiate it under ultraviolet light for 4 hours. No yellowing.

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PUM

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Abstract

The invention relates to a double-component epoxy resin adhesive for repairing stone surface and the preparation method thereof. The double epoxy resin adhesive is composed of a component A consisting of epoxy resin and diluting agent, and a component B consisting of curing agent, optical stabilizer and UV absorber. The double-component epoxy resin adhesive is used for repairing microcrack on stone surface and ant road, and has the advantages of moderate curing speed, good yellowing-resistant performance, good permeability, high glossiness after cured and polished, easily-obtained environment-friendly material, simple process, etc.

Description

technical field [0001] The invention relates to a two-component epoxy resin adhesive for repairing stone materials and a preparation method thereof, in particular to a two-component epoxy resin adhesive for repairing micro-cracks on stone surfaces and ant roads and a preparation method thereof. Background technique [0002] At present, unsaturated resin adhesives are mainly used for repairing micro-cracks and ant roads on stone surfaces. This adhesive has the characteristics of fast curing speed, good brushing performance, and low price, and occupies a considerable share in the market; Poor post gloss, poor yellowing resistance, large curing shrinkage. The solvent styrene is highly toxic, which limits its application. Contents of the invention [0003] In order to solve the insufficient performance of the above-mentioned adhesive, the present invention provides a two-component epoxy resin adhesive for stone surface repair and its preparation method, especially a two-compo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C04B41/00
Inventor 袁宏伟李冬月郑保昌
Owner HUNAN SHENLI IND
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