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Ultraviolet-curable resin composition and fiber reinforced resin-based composite material thereof

A technology for curing resin and composite materials, applied in the field of resin matrix composite materials and light curing technology, can solve the problems such as carbon fiber reinforced resin matrix composite materials that have not been reported yet, and achieve good tensile strength, large curing thickness and fast curing speed. Effect

Inactive Publication Date: 2015-03-11
青岛东正浩机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the currently reported resin systems capable of self-propagating curing are thermally induced free radical curing systems, and there have been no reports that can be used for carbon fiber reinforced resin matrix composites.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 90g of E44 epoxy resin, 0.5g of 4,4-dimethyl-diphenyliodonium hexafluorophosphate, and 0.5g of benzoyl peroxide into a reaction vessel for mixing, and stir evenly to obtain a UV-curable resin combination thing.

[0033] The cured product of the ultraviolet curable resin in this embodiment can be obtained by irradiating the above ultraviolet curable resin composition with ultraviolet light for 9-10 minutes.

[0034] The preparation method of the fiber-reinforced resin-based composite material in this embodiment includes the following steps:

[0035] Coat the matrix phase of the above-mentioned UV-curable resin composition on an easily peelable substrate (such as polytetrafluoroethylene or polyethylene film), then lay carbon fiber cloth, and use a diameter roller or other tools to saturate the UV-curable resin composition Carbon fiber cloth, then coated with UV-curable resin composition, and then lay the second layer of carbon fiber cloth, so layer by layer alterna...

Embodiment 2

[0039] Weigh 100 g of E51 epoxy resin, 0.1 g of triphenylsulfonium salt, 0.2 g of benzoyl peroxide, and 0.2 g of azobisisobutylcyanide into a reaction vessel for mixing, and stir evenly to obtain a UV-curable resin composition.

[0040] The preparation method of the UV-cured 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 60 g of the UV-cured resin composition.

Embodiment 3

[0042] Weigh 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexyl carboxylate 110g, diphenyliodonium hexafluorophosphate 0.4g, diphenyl-(4-phenylthio)benzene Add 0.3 g of sulfonium hexafluorophosphate and 0.1 g of azobisisobutyrocyanide into a reaction vessel for mixing, and stir evenly to obtain a UV-curable resin composition.

[0043] 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 an ultraviolet-curable resin composition and a fiber reinforced resin-based composite material thereof, and belongs to the technical field of light curing technologies and resin-based composite materials. The ultraviolet-curable resin composition comprises, by weight, 90-110 parts of epoxy resin, 0.1-0.7 parts of a cationic photoinitiator, 0.1-0.5 parts of a thermal initiator, 0-1 part of a photosensitizer, 0-35 parts of an active diluent and 0-30 parts of an additive. The ultraviolet-curable resin composition initiates a cationic polymerization reaction under the irradiation of ultraviolet light; and heat release of the polymerization reaction and the decomposition of the cationic photoinitiator commonly urges the thermal initiator to decompose in order to initiate a self propagating wave polymerization reaction. The ultraviolet-curable resin composition has the advantages of fast curing speed, high curing thickness, and realization of one-stage rapid deep curing. The fiber reinforced resin-based composite material with the composition as a matrix phase has good tensile strength, and curing is not affected by the laying layer number of fibers or the light transmission of a reinforcing phase.

Description

(1) Technical field [0001] The invention relates to the field of photocuring technology and resin-based composite material technology, in particular to an ultraviolet light-curable resin composition with rapid self-propagating curing characteristics and a fiber-reinforced resin-based composite material thereof. (2) Background technology [0002] UV curing reaction belongs to the most common type of radiation curing, the reaction requires low activation energy, the reaction can be carried out in a wide temperature range, especially easy to cure at low temperature, which can effectively eliminate the thermal stress caused by high temperature curing , is a green and environmentally friendly material preparation technology. [0003] Resin-based composite materials are generally composed of a reinforcement phase and a matrix phase. The commonly used reinforcement phase is mostly inorganic fibers, such as glass fibers and carbon fibers; the matrix phase is an organic polymer mater...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/00C08K13/04C08K7/06C08K7/14C08G59/32C08J3/28C08F283/10
Inventor 赵培仲戴京涛戴逸菲魏华凯胡芳友黄旭仁吉伯林
Owner 青岛东正浩机电科技有限公司
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