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Solvent-free environment-friendly high-performance modified epoxy adhesive material and preparation method thereof

A technology of epoxy glue and modification, applied in the direction of epoxy resin glue, adhesive, adhesive type, etc., can solve the problems of brittleness of pure epoxy cured product, poor weather resistance, etc., and achieve comprehensive performance improvement and good heat resistance , low cost effect

Inactive Publication Date: 2019-06-28
重庆东吴道路工程有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Epoxy resin has excellent mechanical strength and excellent bonding ability, but pure epoxy cured product is brittle and has poor outdoor weather resistance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] In addition, the present invention also provides a preparation method of the above-mentioned modified epoxy adhesive material. The preparation method of the first composition includes the following steps: adding liquid epoxy resin into the reaction kettle and raising the temperature to 80°C and keeping it warm, and then adding Stir the hyperbranched polymer evenly, cool down to 30°C after the liquid is clear and transparent, and then pack it into a barrel to obtain the first composition;

[0025] The preparation method of the second composition comprises the following steps: injecting each raw material component into a mixing tank according to the proportion and mixing them uniformly, and filling the liquid into a barrel after the liquid is clear and transparent, so as to obtain the second composition;

[0026] The preparation method of the third composition comprises the following steps: adding each raw material component into a dry powder mixer in proportion, stirring ...

Embodiment 1

[0030] This embodiment provides a modified epoxy adhesive material, including a first composition, a second composition and a third composition;

[0031]The raw material components of the first composition include by weight: 100 parts by weight of liquid epoxy resin bisphenol A, 40 parts by weight of hyperbranched polymer 1,2 cyclohexanediol diglycidyl ether; Raw material components by weight, including: alicyclic amine curing agent modified hexamethylene diamine 15 parts by weight, hyperbranched polyester 15, phenalkamine curing agent 10 The raw material components of the third composition are by weight, including: 5 parts by weight of mica powder, 30 parts by weight of talcum powder, 30 parts by weight of quartz sand, and 30 parts by weight of heavy calcium powder.

[0032] According to above-mentioned raw material, adopt preparation method provided by the invention, prepare modified epoxy adhesive material:

[0033] The preparation method of the first composition comprises...

Embodiment 2

[0039] This embodiment provides a modified epoxy adhesive material, including a first composition, a second composition and a third composition;

[0040] The raw material components of the first composition include by weight: 100 parts by weight of liquid epoxy resin bisphenol A, 40 parts by weight of hyperbranched polymer 1,2 cyclohexanediol diglycidyl ether; The raw material components are calculated in parts by weight, including: 15 parts by weight of alicyclic amine curing agent modified hexamethylene diamine, and 15 parts by weight of low-toxicity amine curing agent T31;

[0041] The raw material components of the third composition include: 5 parts by weight of mica powder, 20 parts by weight of talc powder, 25 parts by weight of quartz sand, and 25 parts by weight of heavy calcium.

[0042] According to above-mentioned raw material, adopt preparation method provided by the invention, prepare modified epoxy adhesive material:

[0043] The preparation method of the first ...

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Abstract

The invention relates to a solvent-free environment-friendly high-performance modified epoxy adhesive material and a preparation method thereof. The material comprises a first composition, a second composition and a third composition, wherein the first composition is prepared from the following raw material components in parts by weight: 100 parts of liquid epoxy resin and 10-100 parts of hyperbranched polymer; the second composition is prepared from the following raw material components in parts by weight: 7-50 parts of compound curing agent; and the third composition is prepared from the following raw material components in parts by weight: 10-200 parts of solid filler and pigment; and the compositions are respectively packaged independently. The modified epoxy adhesive material has thecement adhesion strength of more than or equal to 5MPa and elongation at break of more than or equal to 30 percent, has excellent comprehensive performance, is easily available in raw materials, environment friendly and solvent free, and can be used in waterproof protection and reinforcement of various floor and wall faces indoors and outdoors, structure reinforcement of various constructions andthe like.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a solvent-free, environment-friendly, high-performance modified epoxy adhesive material and a preparation method thereof. Background technique [0002] There are many types of materials used in ground protection maintenance and building reinforcement, the most commonly used are epoxy resin, acrylic resin and polyurethane. Among several thermosetting resins, acrylic and polyurethane resins are highly toxic and irritating before curing, and their production and construction are harmful to the human body and the environment. They cannot be constructed in a closed environment, and are flammable and explosive. Listed as dangerous goods, transportation and storage are restricted. Liquid epoxy resin is a non-toxic grade resin, non-flammable and explosive, not classified as dangerous goods, and can be transported as conventional goods. Epoxy resin has excellent mechanical st...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J11/08C09J11/04C08G59/24C08G59/56C08G59/62C08G59/50
Inventor 吴海东陈实郝美淋滕亮杨仪邓红骆平王鹏辉曾志平张任唐国书
Owner 重庆东吴道路工程有限公司
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