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Glass fiber reinforced photocurable epoxy acrylate composite material and preparation method thereof

A technology of epoxy acrylate and phenolic epoxy acrylate, which is applied in the field of glass fiber reinforced light-curing epoxy acrylate composite material and its preparation, can solve the problem of decreased adhesion between resin matrix and glass fiber, decreased mechanical properties, large Curing shrinkage rate and other problems, to achieve the effect of short curing time, good acid and alkali resistance, and simple preparation process

Active Publication Date: 2019-11-08
武汉本邦复合材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The patent application with the publication number CN107216840A discloses a light-curing epoxy acrylate adhesive, which includes the following components in parts by weight: 100 parts of novolac epoxy acrylate, 20-30 parts of ethylhexyl acrylate, 12-18 parts of isobornyl methacrylate, 3-5 parts of photoinitiator, 17-21 parts of EPDM-g-MAH elastomer, 20-30 parts of glass fiber, 15-19 parts of sepiolite fiber, coupling agent 5-9 parts, 8-11 parts of stabilizer, 8-13 parts of toughening agent, 2-5 parts of antioxidant, but the active diluent in the light-curable resin system tends to produce large curing shrinkage after curing under light rate, leading to a decrease in the bonding force between the resin matrix and the glass fiber, and a decrease in the mechanical properties of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] The glass fiber reinforced light-curing epoxy acrylate composite material of this embodiment is composed of the following components by weight: 60 parts of bisphenol A epoxy acrylate, 25 parts of polypropylene glycol diacrylate, 5 parts of 2-hydroxy-2methyl-1-phenyl-1-acetone, 1.5 parts of active magnesium oxide, 1 part of KH-570, 0.5 part of polydimethylsiloxane, 0.5 part of p-hydroxyanisole, 1cm 8 parts of chopped glass fiber.

[0042] The glass fiber reinforced light-curing epoxy acrylate composite material is prepared by the following method, and the steps are as follows:

[0043] Put the 1cm chopped glass fiber into a muffle furnace and heat it to 400℃ for 1 hour, then cool it out, then immerse it in 20-40℃ and 10% hydrochloric acid solution for 2 hours, then wash it with distilled water Use a 2% mass fraction of KH-570 aqueous solution at 20-40°C for immersion treatment for 2 hours, and finally dry the solution at 100°C to obtain pretreated chopped glass fibers. Acco...

Embodiment 2

[0045] The glass fiber reinforced light-curing epoxy acrylate composite material of this embodiment is composed of the following components in parts by weight: 65 parts of bisphenol A epoxy acrylate, and 30 parts of tripropylene glycol diacrylate. Parts, 1 part of KH-570, 2 parts of active magnesium oxide, 0.6 parts of polydimethylsiloxane, 0.6 parts of 2,6-di-tert-butyl-p-cresol, 6 parts of 1-hydroxycyclohexyl benzophenone, 10 parts 1cm chopped glass fiber.

[0046] The glass fiber reinforced light-curing epoxy acrylate composite material is prepared by the following method, and the steps are as follows:

[0047] Put 10 parts of 1cm chopped glass fiber into a muffle furnace and heat it to 400℃ for 1 hour, then cool it out, then immerse it in 20-40℃ and 10% hydrochloric acid solution for 2 hours, and wash it with distilled water Then use a 2% mass fraction of KH-570 aqueous solution at 20-40°C for immersion treatment for 2 hours, and finally dry the solution at 100°C to obtain pre...

Embodiment 3

[0049] A glass fiber reinforced light-curing epoxy acrylate composite material of this embodiment, the composite material is composed of the following components by weight:

[0050] 65 parts of phenolic epoxy acrylate, 30 parts of trimethylolpropane triacrylate, 1 part of KH-590, 2.5 parts of active magnesium oxide, 0.6 parts of polydimethylsiloxane, 2,6-di-tert-butyl pair 0.6 parts of cresol, 6 parts of 2,4,6-trimethylbenzoyl-diphenyl phosphine oxide, 10 parts of 1 cm chopped glass fiber.

[0051] The glass fiber reinforced light-curing epoxy acrylate composite material is prepared by the following method, and the steps are as follows:

[0052] Put the 1cm chopped glass fiber into a muffle furnace and heat it to 400℃ for 1 hour, then cool it out, then immerse it in 20-40℃ and 10% hydrochloric acid solution for 2 hours, then wash it with distilled water Use a 2% mass fraction of KH-590 aqueous solution at 20-40°C for immersion treatment for 2 hours, and finally dry the solution at 1...

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Abstract

Belonging to the technical field of composite material preparation, the invention relates to a glass fiber reinforced photocurable epoxy acrylate composite material and a preparation method thereof. The composite material provided by the invention consists of the following components by weight: 60-75 parts of epoxy acrylate, 25-40 parts of an active diluent, 4-10 parts of a photoinitiator, 1-3 parts of a thickener, 0.5-2 parts of a silane coupling agent, 0.5-2 parts of a defoamer, 0.5-1 part of a polymerization inhibitor, and 8-18 parts of chopped glass fiber. The glass fiber reinforced photocurable epoxy acrylate composite material provided by the invention has short curing time, high hardness, and good acid and alkali resistance, rigidity and heat resistance, and can be applied to first-aid repair of damaged chemical pipelines and tanks, repairing of outdoor communication cabinets and charge piles, and other fields.

Description

Technical field [0001] The invention belongs to the technical field of composite material preparation, and specifically relates to a glass fiber reinforced light-curing epoxy acrylate composite material and a preparation method thereof. Background technique [0002] Light curing technology has achieved rapid development since its industrialization in the 1960s. Because of its high efficiency, high quality, environmental protection, and energy saving characteristics, the development of light curing products has become more and more comprehensive. The light-curing resin and the reinforcing fiber are combined by physical or chemical methods to produce light-curing composite materials. The matrix resin is the basis of the composite material, and the fiber is the reinforcing phase of the composite material. [0003] The light-curing resin matrix, like other resin matrixes, needs to have a good combination with the fiber surface, and have a matching elastic modulus and elongation at bre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/10C08L71/02C08L83/04C08K13/06C08K9/06C08K7/14C08J5/08C08J3/28
CPCC08J5/08C08J3/28C08J2363/10C08J2471/02C08J2483/04C08K2201/004C08K2003/222C08K13/06C08K9/06C08K7/14
Inventor 万春杰蔡建国刘小萍
Owner 武汉本邦复合材料科技有限公司