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Alpha-cyanogroup-beta-ethyl ethoxyacrylate modified epoxy resin adhesive and preparation method thereof

A technology of ethoxylated ethyl acrylate and acrylic epoxy ester is applied in the field of epoxy resin adhesive and its preparation, and can solve the problems of high cost, high price, unfavorable large-scale popularization and application of polyetherimide resin, and the like. The effect of strong hydrophobicity, convenient operation and good application prospect

Inactive Publication Date: 2014-01-08
DONGHUA UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0016] (2) Monomers such as 2,2-bis(3-amino-4-hydroxyphenyl)hexafluoropropane (BAHPFP) are expensive, resulting in high cost of polyetherimide resin (HPEI) and adhesives, which is not conducive to Large-scale promotion and application can only be limited to some special fields

Method used

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  • Alpha-cyanogroup-beta-ethyl ethoxyacrylate modified epoxy resin adhesive and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Mix 50.0 g E-51 epoxy resin, 50.0 g TDE-85 epoxy resin, 30.0 g HPEI phenolic hydroxyl-containing polyetherimide and 30.0 g carboxyl-terminated nitrile rubber, stir and react at 60 °C for 20 min, add 80.0 grams of bisphenol A type epoxy acrylate resin, 20.0 grams of bisphenol A type epoxy methacrylate resin and 20.0 grams of α-cyano-β-ethoxyethyl acrylate, stir and mix well to obtain component A ;

[0032] Mix 65.0 grams of polyamide 650 resin, 10.0 grams of 3,3'-dimethyl-4,4'-diamino-dicyclohexylmethane and 5.0 grams of 2-ethyl-4-methylimidazole, and stir evenly, that is, is B component;

[0033] When in use, mix components A and B evenly to obtain an α-cyano-β-ethoxyethyl acrylate modified epoxy resin adhesive, which is denoted as EAN-1.

[0034]Take an appropriate amount of α-cyano-β-ethoxyethyl acrylate modified epoxy resin adhesive of EAN-1, and evenly coat it on the standard stainless steel test piece, superimpose, clamp, and put it in a blast oven for curing : ...

Embodiment 2

[0040] Mix 50.0 grams of E-51 epoxy resin, 50.0 grams of E-44 epoxy resin with 15.0 grams of amino-terminated nitrile rubber and 15.0 grams of carboxyl-terminated nitrile rubber, and after stirring and reacting at 80 °C for 15 minutes, add 50.0 grams of bisphenol A type acrylic epoxy ester resin and 5.0 g of α-cyano-β-ethoxyethyl acrylate, stir and mix evenly to obtain component A;

[0041] Mix 5.0 g of polyamide 650 resin, 2.0 g of methyltetrahydrophthalic anhydride, 8.0 g of 3,3'-dimethyl-4,4'-diamino-dicyclohexylmethane and 15.0 g of DMP-30, stir well, is the B component;

[0042] When in use, mix components A and B evenly to obtain an α-cyano-β-ethoxyethyl acrylate modified epoxy resin adhesive, which is denoted as EAN-2.

[0043] Take an appropriate amount of α-cyano-β-ethoxyethyl acrylate modified epoxy resin adhesive of EAN-2, and evenly coat it on the standard stainless steel test piece, stack it, clamp it, and put it in a blast oven for curing : Begin to heat up to ...

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Abstract

The invention relates to an alpha-cyanogroup-beta-ethyl ethoxyacrylate modified epoxy resin adhesive and a preparation method thereof. The adhesive comprises the following components: epoxy resin, epoxy ester resin, activity flexibilizer, alpha-cyanogroup-beta-ethyl ethoxyacrylate and a curing agent at a mass ratio of 100:(100-50): (60-30): (5-20): (30-80). The preparation method comprises the following steps that the epoxy resin and the activity flexibilizer are mixed, react at 60-80 DEG C for 15-20min, then are added with the epoxy ester resin and alpha-cyanogroup-beta-ethyl 3-ethoxyacrylate, and stirred and mixed uniformly, and a component A is obtained; the curing agent is a component B; and in a using process, the component A and the component B are mixed uniformly, and the adhesive is obtained. The adhesive is high in bonding strength, excellent in combination property, solvent-free and environment-friendly, can be used for bonding base materials such as metal, glass and ceramic, and has a good application prospect.

Description

technical field [0001] The invention belongs to the field of epoxy resin adhesive and its preparation, in particular to an α-cyano-β-ethoxyethyl acrylate modified epoxy resin adhesive and a preparation method thereof. Background technique [0002] As we all know, epoxy resin has many excellent properties: (1) Good bonding properties: high bonding strength, wide bonding surface, it is compatible with many metals (such as iron, steel, copper, aluminum, metal alloys, etc.) or non- The bonding strength of metal materials (such as glass, ceramics, wood, plastic, etc.) is very high, and some even exceed the strength of the material to be bonded, so it can be used in many stress-bearing structural parts and is the main component of structural adhesives One; (2) Good processing performance: the flexibility of epoxy resin formulation, the diversity of processing technology and product performance are the most prominent among polymer materials; (3) Good stability: the curing of epoxy ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08G59/17C09J163/10
Inventor 虞鑫海黄斌全虞敷扬刘万章陈吉伟
Owner DONGHUA UNIV
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