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Crylic acid rosin epoxy resin, curing method and application thereof

A technology of acrylic rosin epoxy resin and curing method, which is applied in the direction of epoxy resin glue, epoxy resin coating, plastic/resin/wax insulator, etc., which can solve the problems of short fat chain and brittle cured product, so as to avoid brittleness, Low glass transition temperature and good flexibility

Inactive Publication Date: 2010-02-03
GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The above-mentioned rosin-based epoxy resins all have a common shortcoming, that is, due to the relatively large rigid ring structure and short aliphatic chain in the structure, the cured product is relatively brittle.

Method used

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  • Crylic acid rosin epoxy resin, curing method and application thereof
  • Crylic acid rosin epoxy resin, curing method and application thereof
  • Crylic acid rosin epoxy resin, curing method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Regular solidification: the ratio of the amount of substances is 1:2 acrylic rosin and butanediol diglycidyl ether to synthesize acrylic rosin epoxy resin prepolymer (epoxy value 0.19mol / 100g) chemical formula is as follows:

[0029]

[0030] Get the above-mentioned acrylic rosin epoxy resin prepolymer of 10g, 4.17g dodecyl succinic anhydride (the ratio of the amount of the epoxy group in the acrylic rosin epoxy resin prepolymer and the anhydride substance in the dodecyl succinic anhydride is 1:0.8) and 0.08g of triethylamine were mixed uniformly, poured into a mold, pre-cured at 120°C for 2 hours, and post-cured at 190°C for 6h to obtain a cured product of acrylic rosin epoxy resin. The curing agent dodecyl succinic anhydride was purchased from Jiangsu Minsheng Trading Co., Ltd.

Embodiment 2

[0032] Random curing: first dissolve 4.5g of acrylic rosin with acetone and mix it with 4.17g of dodecyl succinic anhydride, put the mixture in a blast oven at 80°C to remove acetone, then add 5.5g of butanediol diglycidyl ether (The ratio of the epoxy group in the butanediol diglycidyl ether to the carboxyl group in the acrylic rosin is 2:1) and 0.09g triethanolamine are fully mixed, poured into the mold, pre-cured at 120°C for 2 hours, and after 190°C After curing for 8 hours, an acrylic rosin epoxy resin cured product was obtained. The curing agent dodecyl succinic anhydride was purchased from Jiangsu Minsheng Trading Co., Ltd.

Embodiment 3

[0034] Regular curing: first synthesize acrylic rosin epoxy resin prepolymer (epoxy value 0.19mol / 100g) by acrylic rosin and butanediol diglycidyl ether at a molar ratio of 1:2. Get the above-mentioned rosin-based epoxy resin prepolymer of 10g, the dodecyl succinic anhydride of 5.09g (the epoxy group in the acrylic acid rosin epoxy resin prepolymer and the ratio of the anhydride substance in the dodecyl succinic anhydride (1:1) and 0.06g of tetraethylammonium chloride were mixed evenly, poured into a mold, pre-cured at 100°C for 3 hours, and post-cured at 170°C for 8h to obtain a cured product of acrylic rosin epoxy resin. The curing agent dodecyl succinic anhydride was purchased from Jiangsu Minsheng Trading Co., Ltd.

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Abstract

The invention discloses crylic acid rosin epoxy resin, a curing method and application thereof. The curing method comprises the following steps: uniformly blending crylic acid rosin epoxy resin prepolymer, dodecyl succinic anhydride and catalyst which are cured to obtain crylic acid rosin epoxy resin; or dissolving crylic acid rosin by using acetone and then uniformly blending the dissolved crylicacid rosin and dodecyl succinic anhydride, and finally volatilizing and removing the acetone; adding aliphatic glycidol ether and catalyst, uniformly blending and curing to obtain crylic acid rosin epoxy resin. The cured product provided by the invention has good flexility, low glass transition temperature, excellent mechanical property and uvioresistant performance, is particularly suitable formanufacturing outdoor weather resistance electrician insulation material, also can be used as weather resistance epoxy adhesive, epoxy resin-based paint and water-borne epoxy resin paint, etc.

Description

technical field [0001] The invention belongs to the field of rosin-based epoxy resins, in particular to an acrylic rosin epoxy resin and its curing method and application. Background technique [0002] Epoxy resin has excellent electrical properties, mechanical properties, corrosion resistance and chemical stability, so it is widely used in industries such as coatings, electronic appliances, composite materials and adhesives, but the general-purpose bisphenol A epoxy resin has a benzene ring The structure has poor UV resistance and is not resistant to aging. [0003] At present, outdoor weather-resistant epoxy resins are mainly synthesized by the reaction of cyclohexyl compounds (such as cyclohexanediol, cyclohexanedioic acid, hydrogenated bisphenol A, etc.) obtained cycloaliphatic epoxides. Because there is no benzene ring in the molecular structure, it has better weather resistance. However, due to the high price of the above-mentioned outdoor weather-resistant epoxy re...

Claims

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Application Information

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IPC IPC(8): C08G59/42H01B3/40C09J163/02C09D163/02
Inventor 哈成勇邓莲丽沈敏敏岑学杨于静甘露
Owner GUANGZHOU INST OF GEOCHEMISTRY - CHINESE ACAD OF SCI
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