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Quick bonding repair method of ultraviolet-curing composite material

A composite material and ultraviolet light technology, which is applied in the field of rapid bonding and repair of ultraviolet light curing composite materials, can solve the problems of limited ultraviolet light penetration ability and inability to achieve one-time rapid deep curing, etc., and achieve strong designability and high curing efficiency High, easy-to-operate effect

Inactive Publication Date: 2015-02-25
青岛煊龙机电科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, due to the limited penetration ability of ultraviolet light, ultraviolet light curing technology is usually suitable for light-transmitting glass fiber reinforced systems. When preparing composite material repair blanks, glass fibers need to be laid layer by layer and layer by layer multiple times of radiation curing, which cannot be achieved in one time. fast deep curing
For systems containing opaque reinforcing phases, such as UV curing of carbon fiber reinforced composites, there is no relevant report

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Weigh 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexyl carboxylate 100g, 4,4-dimethyl-diphenyliodonium hexafluorophosphate 0.2g, benzyl peroxide Acyl 0.5g was added into the reaction vessel for mixing, and stirred evenly to obtain a UV-curable resin composition.

[0037] The composite material layup of this embodiment is prepared by mixing the above-mentioned ultraviolet light-curable resin composition matrix material with a fiber-reinforced material, and the fiber-reinforced material includes carbon fiber cloth or glass fiber cloth, wherein every 100 g of the fiber-reinforced resin-based composite material Contains 40g of UV-curable resin composition.

[0038] The composite material layup of the present embodiment, its preparation method comprises the steps:

[0039]Coat the above-mentioned UV-curable resin composition base material on the surface of the treated damaged area, then lay carbon fiber cloth, use a diameter roller or other tools to soak the UV-curable resin c...

Embodiment 2

[0041] Weigh 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexylcarboxylic acid 80g, epoxy modified silicone resin ES-06 20g, 4,4-dimethyl-diphenyliodonium six Add 0.2 g of fluorophosphate and 0.2 g of benzoyl peroxide into a reaction vessel for mixing, and stir evenly to obtain a UV-curable resin composition.

[0042] The layering and preparation method of the composite material in this embodiment are the same as those in Embodiment 1.

Embodiment 3

[0044] Weigh 3,4-epoxycyclohexylmethyl-3,4-epoxycyclohexylcarboxylic acid 85g, epoxy modified silicone resin ES-06 15g, 4,4-dimethyl-diphenyliodonium hexa Add 0.3 g of fluorophosphate and 0.2 g of benzoyl peroxide into the reaction vessel for mixing, and stir evenly to obtain a UV-curable resin composition.

[0045] The layering and preparation method of the composite material in this embodiment are the same as those in Embodiment 1.

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PUM

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Abstract

The invention provides a quick bonding repair method of an ultraviolet-curing composite material. An ultraviolet-curing resin composition with quick self-propagating curing characteristic, which is used as a base material, is mixed with a fiber reinforcing material to obtain a composite material repair patch. The method comprises the following steps: 1) carrying out surface treatment on a damage region in need of bonding repair; 2) laying a composite material layer on the treated damaged region surface, wherein the thickness and direction of the composite material layer are determined according to the actual demands for repair; and 3) irradiating the composite material layer by an ultraviolet light source to form the composite material repair patch, thereby completing the bonding repair on the damage structure. The composite material repair patch has high designability, can be cured only by single irradiation in the preparation process, and has the advantages of high curing efficiency, favorable tensile strength, high repair efficiency and the like; the curing is not influenced by the number of the fiber layers and the light transmittance of the enhanced phase of the resin-base composite material; and thus, the method is especially suitable for emergency repair operation.

Description

(1) Technical field [0001] The invention relates to the field of photocuring technology and resin-based composite material technology, in particular to a fast bonding repair method for ultraviolet light-cured composite material. (2) Background technology [0002] Resin-based composite materials have outstanding advantages such as high specific strength and specific modulus, good corrosion resistance, good fatigue resistance, and strong designability, and are widely used in aerospace, petrochemical, and medical materials. Resin-based composites will inevitably have defects or be damaged during production or use. In order to meet the needs of normal use, the damaged parts need to be repaired. The repair methods of resin matrix composites are divided into mechanical repair and bonding repair. Adhesive repair method is a high-quality and efficient structural repair method, which has been increasingly recognized and applied in the repair of various damages such as holes, cracks ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D163/00C09D7/12C09J163/00C09J11/04C09J11/06
CPCC08K7/00C08K7/06C08K7/14C09J11/04C09J163/00
Inventor 赵培仲魏华凯戴逸菲胡芳友戴京涛黄旭仁吉伯林
Owner 青岛煊龙机电科技有限公司
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