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Rubber modified epoxy two-component woodworking adhesive

A rubber-modified epoxy, rubber-modified technology, applied in the direction of epoxy resin glue, adhesive, adhesive type, etc., to achieve the effect of small shrinkage, high mechanical strength, electrical insulation, and good stability

Inactive Publication Date: 2020-01-24
广东天银实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In case of emergency, the furniture needs to be used as soon as possible, but the gel time of the existing wood glue is generally more than 30 minutes, so there is an urgent need for a wood glue with controllable gel speed and good gel effect

Method used

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  • Rubber modified epoxy two-component woodworking adhesive

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A rubber-modified epoxy two-component woodworking glue, comprising 5 parts by weight of butadiene acrylonitrile copolymer, 75 parts by weight of epoxy resin with an n value of 3.6, and 20 parts by weight of aniline boron trifluoride complexed Things.

[0024] The preparation method is as follows:

[0025] S1. Preparation of rubber-modified epoxy adduct: Take 5 parts by weight of butadiene acrylonitrile copolymer and 75 parts by weight of epoxy resin with an n value of 3.6 and mix with triphenylphosphine as a catalyst at 150°C Heat at a constant temperature for 2 hours to obtain a rubber modified epoxy adduct; S2. Preparation of Lewis acid complex: Dissolve aniline in a benzene solution under anhydrous conditions, and then add anhydrous boron trifluoride to form a precipitate , Filter and dry to obtain Lewis acid complex.

Embodiment 2

[0027] A rubber-modified epoxy two-component woodworking glue, comprising 25 parts by weight of butadiene acrylonitrile copolymer, 60 parts by weight of epoxy resin with an n value of 3.6, and 15 parts by weight of aniline boron trifluoride complexed Things.

[0028] The preparation method is as follows:

[0029] S1. Preparation of rubber-modified epoxy adduct: 25 parts by weight of butadiene acrylonitrile copolymer and 40 parts by weight of an epoxy resin with an n value of 3.6 are mixed, and triphenylphosphine is used as a catalyst at 200°C Heat and react at a constant temperature for 1 hour to obtain a rubber-modified epoxy adduct; S2. Preparation of Lewis acid complex: Dissolve aniline in a benzene solution under anhydrous conditions, add anhydrous boron trifluoride to form a precipitate, Filter and dry to obtain Lewis acid complex.

Embodiment 3

[0031] A rubber-modified epoxy two-component woodworking glue, comprising 40 parts by weight of (meth)acrylonitrile copolymer, 50 parts by weight of epoxy resin with an n value of 3.6, and 10 parts by weight of aluminum trichloride-glycerin Complex.

[0032] The preparation method is as follows:

[0033] S1. Preparation of rubber-modified epoxy adduct: 40 parts by weight of (meth)acrylonitrile copolymer and 50 parts by weight of an epoxy resin with an n value of 3.6 are mixed, and triphenylphosphine is used as a catalyst. Heat at a constant temperature for 1 hour to obtain rubber-modified epoxy adduct; S2. Preparation of Lewis acid complex: Dissolve glycerin in benzene solution under anhydrous conditions, add anhydrous aluminum trichloride to form a precipitate , Filter and dry to obtain Lewis acid complex.

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PUM

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Abstract

A rubber modified epoxy double-component woodworking adhesive comprises a rubber modified epoxy adduct (component A) and a Lewis acid complex (component B), and the rubber modified epoxy adduct comprises, by weight, 5-40 parts of an elastomer copolymer and 40-94 parts of an epoxy resin; the weight part of the Lewis acid complex is 1-20; the Lewis acid complex comprises a first Lewis acid complex and a second Lewis acid complex according to a weight ratio of (0.6-2.4):1; the Lewis complex comprises a Lewis acid and an alkaline material; and the epoxy resin comprises one or two of a first epoxyresin and a second epoxy resin, the first epoxy resin comprises one or more ethylene oxide group, n is 3.6, the second epoxy resin comprises one or more ethylene oxide group, and n is 0.44.

Description

Technical field [0001] The invention relates to the field of woodworking adhesives, in particular to a rubber modified epoxy two-component woodworking adhesive. Background technique [0002] In the field of furniture making, the most important material besides wood is wood glue. From ancient Egypt to European Renaissance furniture, glue marks of hundreds of years can be seen. [0003] Modern woodworking glue mainly includes board adhesives, white latex, universal glue, hot melt glue, etc. The characteristics of these woodworking glues are that the gel time is uncontrollable and has certain toxicity. People need to stay away during the gel process. [0004] In case of emergency, furniture needs to be used as soon as possible, but the gel time of existing woodworking glue is generally more than 30 minutes, so there is an urgent need for a woodworking glue with a controllable gel speed and good gel effect. Summary of the invention [0005] The purpose of the present invention is to solv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J109/02C09J133/20C09J11/06
CPCC09J11/06C09J163/00C08L9/02C08K5/55C08K5/0091C08L33/20
Inventor 蔡镇源郑宗武
Owner 广东天银实业有限公司
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