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Fast curing resin for fiber prepreg and preparation method thereof

A fast-curing, prepreg technology, applied in the field of high-performance resin-based composite materials, can solve problems such as high cost and low molding efficiency, and achieve the effects of eliminating internal stress, improving production efficiency, and saving energy

Inactive Publication Date: 2017-08-11
珠海辉帛复合材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The low molding efficiency and high cost of carbon fiber / epoxy resin composite materials keep the product price high. At present, the molding time of most carbon fiber / epoxy resin composite materials is cured after in-mold molding at 150°C*30min and high temperature. Molding cycle takes nearly 2 hours

Method used

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  • Fast curing resin for fiber prepreg and preparation method thereof
  • Fast curing resin for fiber prepreg and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Mix 20 parts of NPEL-127 epoxy resin, 30 parts of NPES-901 epoxy resin, 25 parts of NPPN-631 epoxy resin, and 15 parts of JER1256 toughened epoxy resin, heat at 130°C for 3-4 hours, and wait until the resin is completely After melting, stir with a mixer to disperse the resin evenly, cool down naturally to 70°C, add 6 parts of dicyandiamide Dyhard 100S, 5 parts of UR500 and 1 part of diethyltetramethylimidazole, stir and mix evenly to obtain a fast-curing resin.

Embodiment 2

[0031] Mix 20 parts of NPEL-128 epoxy resin, 30 parts of NPES-904 epoxy resin, 25 parts of NPPN-631 epoxy resin, and 15 parts of ERS-133 toughened epoxy resin, heat at 130°C for 3-4 hours, and wait After the resin is completely melted, stir with a mixer to disperse the resin evenly, cool down naturally to 70°C, add 6 parts of dicyandiamide Dyhard 100SF, 1 part of ICAM-8403 and 1 part of diphenylimidazole, stir and mix evenly to obtain a fast-curing resin.

Embodiment 3

[0033] Mix 20 parts of NPEL-128 epoxy resin, 30 parts of NPES-904 epoxy resin, 25 parts of NPPN-631 epoxy resin, and 15 parts of PKHH toughened epoxy resin, heat at 130°C for 3-4 hours, and wait until the resin is completely After melting, stir with a mixer to disperse the resin evenly, cool down naturally to 70°C, add 6 parts of dicyandiamide Ecure 14, 1 part of ICAM-8406 and 1 part of diphenylimidazole, stir and mix evenly to obtain a fast-curing resin.

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Abstract

The invention belongs to the technical field of high-performance resin matrix composite materials, and particularly relates to fast curing resin for fiber prepreg and a preparation method thereof. The fast curing resin is prepared from, by weight, 80-100 parts of components A, 4-8 parts of curing agents B and 2-6 parts of promoters C, and the components A are composed of glycidyl ether-type epoxy resin, toughened epoxy resin and phenolic epoxy resin. By the adoption of the fast curing resin for the fiber prepreg and the preparation method thereof, the forming time of carbon fiber / epoxy resin is greatly reduced; the preparation temperature of the prepreg is reduced, the forming time is shortened, the energy consumption is greatly saved, and the production efficiency is improved; a modified organic urea promoter and an imidazole promoter are adopted to compound, the gel time of the resin is greatly shortened, the overall strength of the resin is equal to that of ordinary resin, and the overall performance of composite materials is not affected.

Description

technical field [0001] The invention belongs to the technical field of high-performance resin-based composite materials, and in particular relates to a fast-curing resin for fiber prepreg and a preparation method thereof. Background technique [0002] Carbon fiber / epoxy resin composite materials have many advantages such as light weight, high specific strength, and good dimensional stability, and are widely used in national defense and civilian cutting-edge fields. In carbon fiber / epoxy resin composites, the matrix resin plays the role of adhering fibers and transmitting loads, and the performance of the matrix resin has a decisive impact on the performance of the composite material. [0003] The low molding efficiency and high cost of carbon fiber / epoxy resin composite materials keep the product price high. At present, the molding time of most carbon fiber / epoxy resin composite materials is cured after in-mold molding at 150°C*30min and high temperature. The molding cycle ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/02C08L63/04C08L63/00C08G59/50C08G59/68C08K7/06C08J5/24
CPCC08L63/00C08G59/504C08G59/686C08J5/24C08J2363/00C08J2463/04C08L2205/025C08L2205/035C08L63/04C08K7/06
Inventor 汤翊王杰洪名岿
Owner 珠海辉帛复合材料有限公司
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