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Visible-light-curing vinyl ester resin composite prepreg, and preparation method and application method thereof

A vinyl ester resin, vinyl ester resin technology, applied in the field of visible light curing vinyl ester resin composite material prepreg and its preparation, can solve the problems of insufficient curing degree, limited curing thickness, poor mechanical properties of cured products, etc. The effect of large thickness, high overall strength and high curing degree

Inactive Publication Date: 2016-05-25
四川远鸣科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Aiming at the problems of limited cured thickness (within about 5mm) in UV curing of composite materials, incomplete curing of thicker products (not enough curing degree in shadow and backlight parts), uneven curing and poor mechanical properties of cured products, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] Embodiment 1: a kind of visible light curing vinyl ester resin composite material prepreg, its raw material comprises:

[0058] A. the thickening vinyl ester resin of magnesium oxide (MgO) selects thickening bisphenol A type vinyl ester resin, and the weight portion is 100 parts;

[0059] B. Choose glass fiber chopped strand mat for fiber grid cloth and felt fiber reinforced material (specification: 450g / m 2 ) and non-alkali glass fiber roving (grid specification: 600g / m 2 ), the parts by weight are 130 parts, and the layer structure of the fiber reinforced material is that the lower covering surface is surface felt and chopped strand felt material, and the intermediate reinforcement material is chopped strand felt material, square cloth, stitched fabric, composite fabric material, The upper covering surface is surface felt material;

[0060] C. The coupling agent selects γ-methacryloxypropyl trimethoxysilane, and the parts by weight are 2 parts;

[0061] D. Photoiniti...

Embodiment 2

[0077] Embodiment 2: a kind of visible light curing vinyl ester resin composite material prepreg, its raw material comprises:

[0078] A. The vinyl ester resin that can be thickened by magnesium oxide (MgO) selects thickening and toughening type bisphenol A type vinyl ester resin, and parts by weight are 100 parts;

[0079] B. Fiber reinforced material selection of glass fiber chopped strand mat (specification: 300g / m 2 ) and non-alkali glass fiber roving (grid specification: 800g / m 2 ), the parts by weight are 160 parts, the layer structure of the fiber reinforced material is that the lower covering surface is surface felt, chopped strand felt material, and the intermediate fiber reinforced material is chopped strand felt material, square grid cloth, stitched fabric, composite fabric material , the upper covering surface is surface felt material;

[0080] C. The coupling agent selects γ-glycidyl etheroxypropyl trimethoxysilane, and the parts by weight are 3 parts;

[0081]...

Embodiment 3

[0097] Embodiment 3: a kind of visible light curing vinyl ester resin composite material prepreg, its raw material comprises:

[0098] A. the vinyl ester resin that can magnesium oxide (MgO) thickening selects thickening phenolic vinyl ester resin, and the weight part is 100 parts;

[0099] B. Fiber reinforced material selection of glass fiber chopped strand mat (specification: 300g / m 2 ) and 3D glass fiber stitched fabric (specification: 400 ~ 1000g / m 2 ), parts by weight are 100 parts;

[0100] C. Select N-(β-aminoethyl)-γ-aminopropyltrimethyl(ethyl)oxysilane as the coupling agent, with 1 part by weight;

[0101] D. Photoinitiator selection 2,4,6-trimethylbenzoyl diphenylphosphine oxide (Darocur TPO, BASF company commodity) and two (2,6-dimethylbenzoyl)-2, 4,4-trimethylpentylphosphine oxide (abbreviated as BAPO, Irgacure? 1700, commodity of BASF Company) is mixed according to the ratio of 75% / 25%, and the parts by weight are 0.2 parts;

[0102] E. Thermal initiator selec...

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PUM

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Abstract

The invention particularly provides a visible-light-quick-curing vinyl ester resin composite prepreg, and a preparation method and application method thereof, belonging to the field of repair of a fiber-reinforced resin-base structure with certain thickness. A special vinyl ester resin is used as a matrix; the proper visible light initiator, thermal initiator and other aids are selected to constitute the light-thermal composite initiation system; magnesium oxide is used as a thickener; different types of fabrics are selected as fiber-reinforcing materials according to performance requirements; and a proper composite technique is utilized to prepare the composite prepreg with certain thickness. The visible-light-curing prepreg material can be cured within 5 minutes under the single-side irradiation of visible light, and the once-time photocuring thickness can reach 10mm or above, thereby basically solving the problems of poor operability, poor safety and insufficient film thickness under ultraviolet light. The visible-light-curing prepreg can be subjected to mass application in the field of structure repair.

Description

technical field [0001] The invention relates to the field of materials, in particular to a visible light-curable vinyl ester resin composite material prepreg, a preparation method and a use method thereof. Background technique [0002] Vinyl ester resin usually needs to add peroxide initiator to cure at room temperature or heat. However, when curing at room temperature, it takes a long time to achieve complete curing, the work efficiency is relatively low, and the monomer (styrene, etc.) volatilizes a lot, which will cause air pollution on the job site, be harmful to the human body, and cause It may cause the composition ratio of the resin composition to change and reduce its performance. In addition, the resin content and yield may also be lost, and it is very easy to cause a fire. In addition, under different temperature conditions, the time required for resin gelation is also different. It is difficult to judge whether to increase or decrease the specific amount of initi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L63/10C08K13/06C08K9/06C08K7/14C08K3/22C08J5/24C08J3/24B29C70/50
CPCC08K13/06B29C70/504C08J3/24C08J5/24C08J2361/10C08K3/22C08K7/14C08K9/06C08K2003/222
Inventor 何通
Owner 四川远鸣科技有限公司
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