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High-elasticity epoxy resin adhesive

An epoxy resin and adhesive technology, applied in the direction of epoxy resin glue, non-polymer adhesive additives, adhesive types, etc., can solve the problem of not meeting the requirements of use, and achieve the effect of good adhesion

Inactive Publication Date: 2014-12-10
王寿高
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, this type of adhesive can not meet the requirements for use

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] A highly elastic epoxy resin adhesive, including epoxy resin containing more than two epoxy groups, polysulfide rubber, dicyandiamide, accelerator, organic bentonite, silane coupling agent, thixotropic agent, nanocarbonic acid Calcium, pigment, the content of each component is: 80 parts of epoxy resin, 50 parts of epoxy-terminated polysulfide rubber, 8 parts of curing agent, 5 parts of accelerator, 0.3 parts of organic bentonite, 1 part of silane coupling agent, 6 parts of thixotropic agent, 20 parts of nanometer calcium carbonate, 20 parts of pigment. The accelerator is a new reactive epoxy curing accelerator containing active hydrogen, the thixotropic agent is fumed silica, the pigments are rutile titanium dioxide and iron yellow, and the weight ratio of titanium dioxide and iron yellow is 2:1.

Embodiment 2

[0015] A highly elastic epoxy resin adhesive, including epoxy resin containing more than two epoxy groups, polysulfide rubber, dicyandiamide, accelerator, organic bentonite, silane coupling agent, thixotropic agent, nanocarbonic acid Calcium, pigment, the parts of each component are: 90 parts of epoxy resin, 70 parts of epoxy-terminated polysulfide rubber, 9 parts of curing agent, 7 parts of accelerator, 0.4 part of organic bentonite, 1.2 parts of silane coupling agent, 7 parts of thixotropic agent, 30 parts of nanometer calcium carbonate, 30 parts of pigment. The accelerator is a new reactive epoxy curing accelerator containing active hydrogen, the thixotropic agent is fumed silica, the pigments are rutile titanium dioxide and iron yellow, and the weight ratio of titanium dioxide and iron yellow is 2:1.

Embodiment 3

[0017] A highly elastic epoxy resin adhesive, including epoxy resin containing more than two epoxy groups, polysulfide rubber, dicyandiamide, accelerator, organic bentonite, silane coupling agent, thixotropic agent, nanocarbonic acid Calcium, pigment, the content of each component is: 100 parts of epoxy resin, 100 parts of epoxy-terminated polysulfide rubber, 10 parts of curing agent, 8 parts of accelerator, 0.5 parts of organic bentonite, 1.5 parts of silane coupling agent, 8 parts of thixotropic agent, 40 parts of nanometer calcium carbonate, 40 parts of pigment. The accelerator is a new reactive epoxy curing accelerator containing active hydrogen, the thixotropic agent is fumed silica, the pigment is rutile titanium dioxide and iron yellow, and the weight ratio of titanium dioxide and iron yellow is 2:1.

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PUM

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Abstract

The invention provides a high-elasticity epoxy resin adhesive which comprises 80-100 parts of epoxy resin containing more than two epoxy groups, 50-100 parts of epoxy-terminated polysulfide rubber, 8-10 parts of curing agent, 5-8 parts of accelerator, 0.3-0.5 part of anti-settling agent, 1-1.5 parts of coupling agent, 6-8 parts of thixotropic agent, 20-40 parts of nano calcium carbonate and 20-40 parts of pigment. The high-elasticity epoxy resin adhesive has the characteristics of favorable bonding property, high elongation at break (greater than 50%) and the like.

Description

technical field [0001] The invention relates to an adhesive, in particular to a high elastic epoxy resin adhesive. Background technique [0002] The adhesive based on epoxy resin can bond a variety of metal and non-metal materials. It has good processing performance, excellent mechanical properties, electrical properties and chemical resistance. However, after the unmodified epoxy resin is cured, its use is limited due to its high brittleness. There are many ways to modify epoxy resin, but the main method is to add elastomers and thermoplastics for modification and toughening. However, in the past elastomer modification methods, the phase separation of the elastomer and the epoxy resin occurs during the curing process of the adhesive, and the elastomer forms a dispersed phase, which can absorb energy when the system is impacted, thereby achieving the purpose of toughening modification. With the increase in demand for engineering adhesives, there is currently an increasing ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J181/04C09J11/04C09J11/06C08G59/50
Inventor 王寿高
Owner 王寿高
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