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Method for preparing fiber-reinforced resin-based composite material through cationic photocuring and resin composition used therein

A fiber-reinforced resin and light-curing resin technology, applied in the field of resin-based composite materials, can solve the problems of increased material manufacturing cost, long time consumption, high energy consumption, and achieve the effects of good tensile strength, simple and convenient method, and low energy consumption

Inactive Publication Date: 2017-07-28
HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can be seen that high energy consumption and long time consumption are always disadvantages in the manufacturing process of carbon fiber reinforced composite materials, which not only increases the manufacturing cost of materials, but also deviates from the current concept of green environmental protection and sustainable development, seriously restricting it. The further expansion of the application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Add 90 parts of E44 epoxy resin and 0.5 part of 4,4-dimethyl-diphenyliodonium hexafluorophosphate into the reaction container and mix them. After the mixture is exposed to ultraviolet light, the exposed The resin is injected into the vacuum infusion mold where the carbon fiber reinforced material has been laid, and the post-curing reaction is carried out. After the reaction is complete, the product can be obtained by demoulding. Wherein every 100g of the fiber-reinforced resin-based composite material contains 40g of the ultraviolet curable resin composition.

Embodiment 2

[0026] Add 100 parts of E51 epoxy resin and 0.1 part of triphenylsulfonium salt into a reaction vessel for mixing, and stir evenly to obtain a UV-curable resin composition. The preparation method of the UV-curable resin cured product and the fiber-reinforced resin-based composite material in this example is the same as that in Example 1, except that 60 g of the UV-curable resin composition is contained in every 100 g of the fiber-reinforced resin-based composite material.

Embodiment 3

[0028] 110 parts of 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexyl carboxylate, 0.4 parts of diphenyliodonium hexafluorophosphate, diphenyl-(4-phenylthio)benzene Add 0.3 parts of sulfonium hexafluorophosphate into the reaction vessel and mix, and stir evenly to obtain a UV-curable resin composition. The preparation method of the UV-curable resin cured product and the fiber-reinforced resin-based composite material in this example is the same as that in Example 1, except that every 100 g of the fiber-reinforced resin-based composite material contains 75 g of the UV-curable resin composition.

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Abstract

The invention relates to a method for preparing a fiber-reinforced resin-based composite material by cationic photocuring and a resin composition thereof, belonging to the technical fields of photocuring technology and resin-based composite material. In the formula of the cationic photocurable resin composition, the ingredients and parts by weight of each raw material are as follows: 90-110 parts of epoxy resin, 0.1-10 parts of cationic photoinitiator, 0-10 parts of photosensitizer, and 0-35 parts of reactive diluent. parts, 0-30 parts of additives. The ultraviolet curable resin composition of the present invention is prepared by a method of photoinitiating and dispersing active centers to obtain a fiber-reinforced resin-based composite material, which has the advantages of low curing energy consumption, fast curing speed, and large curing thickness, and can realize one-time rapid deep-layer curing. The fiber-reinforced resin-based composite material prepared by the composition and method has good tensile strength, and can solve the problem of light-cured thickness of an opaque system or a thick-size system.

Description

technical field [0001] The invention relates to the technical field of resin-based composite materials, in particular to rapidly prepare fiber-reinforced resin-based composite materials by utilizing the characteristics of long active center life and post-curing of the system in the cationic photocuring reaction. Background technique [0002] Fiber-reinforced resin-based composite materials have the characteristics of light weight, high strength, strong designability, good fatigue resistance, and easy integration of multiple components, and have been widely used in modern industry. With the expansion of my country's carbon fiber scale production, after gradually meeting the needs of domestic aerospace and other high-precision fields, the application and development of carbon fiber in the industrial field has become an urgent problem to be solved in the complete industrial chain of carbon fiber and its composite materials. At present, the primary factor restricting the scale a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K13/04C08K7/06C08K7/14
CPCC08K13/04C08K7/06C08K7/14C08L63/00C08L2205/025
Inventor 杨金梁李东兵聂俊简凯
Owner HANGZHOU INST OF ADVANCED MATERIAL BEIJING UNIV OF CHEM TECH
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