Fiber composite material reinforced repairing adhesive and preparation method thereof

A fiber composite material and composite material technology, which are applied in the field of fiber composite material reinforced repair glue and its preparation, can solve the problems of polluted environment, poor applicability, high density, etc., and achieve environmental protection, overall performance improvement, and density reduction. Effect

Inactive Publication Date: 2018-06-01
铁科腾跃科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved in the present invention is to provide a repair glue reinforced by fiber composite materials and its preparation method, which is made of waste fiber composite material powder and used by the composite material product itself, so as to solve the problem of waste composite material polluting the environment At the same time, solve the problems of low strength, high density and poor applicability of traditional putty containing inorganic fillers, and further improve the overall performance of composite products

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0024] The preparation method of the above-mentioned fiber composite material reinforced repair glue mainly includes the steps of recycling and preparing waste fiber reinforced resin matrix composite material composite materials and mixing and stirring uniformly.

[0025] Among them, the waste fiber-reinforced resin-based composite materials include sawdust powder and scrap waste. Among them, the recovery method of sawdust powder is as follows: before cutting fiber-reinforced resin-based composite material products, the suction port of the industrial vacuum cleaner is facing the blade of the cutting machine, so as to ensure that the sawdust powder generated during the cutting process is sucked into the vacuum cleaner as much as possible, and collected in the vacuum cleaner bag. The obtained sawdust powder can be directly used as a fiber composite material reinforcing filler. The recycling and preparation method of scraps is as follows: collect scraps and residues produced duri...

Embodiment 1

[0029] In this example, the fiber composite material reinforced filler is made of glass fiber reinforced polyurethane resin composite material, the reactive curing resin is made of a single-component polyurethane prepolymer with an NCO mass fraction of 12%, the pigment is carbon black, and the defoamer is silok4009 , The catalytic accelerator is dibutyltin dilaurate and dimorpholino diethyl ether.

[0030] Take 25 parts of glass fiber reinforced polyurethane resin composite reinforcement filler and pour it into a 20L metal bucket, then add 60 parts of single-component polyurethane prepolymer with NCO mass fraction of 12%, 0.6 part of carbon black, 0.5 part of defoamer silok 4009, stirred for 40min, then added 15 parts of NCO mass fractions as a single-component polyurethane prepolymer of 12%, 0.02 part of catalyst dibutyltin dilaurate and 0.03 part of dimorpholino diethyl ether, stirred at high speed for 20min, that is A one-component polyurethane repair adhesive containing co...

Embodiment 2

[0034] In this example, the fiber composite material reinforced filler is made of glass fiber reinforced epoxy resin composite material, the reactive curing resin is made of epoxy resin E51 and diethylenetriamine, the pigment is titanium dioxide, the defoamer is silok 4009, and the catalytic The accelerator is DMP-30.

[0035] Take 20 parts of glass fiber reinforced epoxy resin composite reinforcement filler and add it to a 20L metal bucket, then add 60 parts of epoxy resin E51, 2 parts of titanium dioxide, 1 part of defoamer silok 4009, stir for 50 minutes, and then add 7 parts of epoxy The curing agent diethylenetriamine, 0.2 parts of the accelerator DMP-30, and high-speed stirring for 20 minutes can obtain the epoxy repair glue containing the composite material reinforcing filler.

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Abstract

The invention discloses a fiber composite material reinforced repairing adhesive and a preparation method thereof, wherein the repairing adhesive includes, by weight, 20-40 parts of a fiber compositematerial reinforced filler, 50-80 parts of reactive-type curing resin, 0.5-2 parts of a pigment, 0.3-1 part of a defoaming agent, and 0.01-1 part of a catalysis accelerant. The preparation method mainly includes the steps of: recycling wasted fiber composite materials and mixing and stirring components. In the invention, by crushing the wasted fiber composite materials into powders and replacing conventional inorganic filler with the fiber composite material to produce the repairing adhesive, mechanical performance and binding strength of the repairing adhesive are improved and demands of highstrength and adhesion force on fiber reinforced resin based composite material are satisfied, so that the adhesive can be used in the fiber reinforced resin based composite material, especially repairing the pores and recesses in surfaces of fiber reinforced polyurethane foaming composite material product. The adhesive further is suitable for a high-strength fiber reinforced resin based compositematerial system and can significantly improve the total performance of the composite material product.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a fiber composite reinforced repair glue and a preparation method thereof. Background technique [0002] Composite materials used in the field of building materials or processed surfaces produced by composite materials often have defects such as pores and depressions. At this time, it is usually necessary to use a putty coating to fill the depressions and enhance the adhesion. At present, in order to reduce the cost, most of the commercially available putty powders are made of inorganic mineral fillers, such as calcium carbonate, kaolin, talc, etc., to achieve thixotropic and thickening effects. The putty thus prepared has low strength, high density, self- The disadvantage of small cohesive energy; while the fiber-reinforced resin-based composite material has a large body strength and a large bearing capacity. When the putty containing ordinary inorganic mineral filler...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J175/04C09J163/00C09J11/04C09J4/06C09J4/02
CPCC08L2205/025C09J4/06C09J11/04C09J163/00C09J175/04C08L75/04C08K7/14C08L63/00C08L61/06C08K7/06
Inventor 张勇刘志张彬赵微微郝林栓李畅张博张松琦
Owner 铁科腾跃科技有限公司
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