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Application of High Temperature Resistant High Performance Attenuated Toxicity Epoxy Matrix and Method for Using It to Prepare Composite Materials

A technology of epoxy matrix and composite materials, applied in the direction of epoxy resin glue, adhesive type, adhesive, etc., can solve the problems of high toxicity, complicated preparation methods, pollution of the environment, and preparation costs, and achieve low cost and simple preparation methods , The effect of low preparation cost

Active Publication Date: 2015-12-30
HARBIN FRP INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The present invention solves the problems of complex preparation methods, high toxicity, environmental pollution and high preparation cost in the existing preparation methods of high-temperature resistant epoxy matrix and its composite materials, and provides high-temperature-resistant, high-performance and toxic-reducing epoxy matrix and its application and The preparation method of its composite material

Method used

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Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0018] Specific embodiment 1: The high temperature resistant, high performance, low toxicity epoxy matrix of this embodiment is characterized in that the high temperature resistant, high performance, low toxicity epoxy matrix is ​​made of A, B and C; said A is a cycloaliphatic three Functional epoxy resin; said B is an epoxy resin with a viscosity of (0.013pa·s / 25°C~10pa·s / 25°C); said C is a meta-diazocene curing agent; The meta-diazepine curing agent is 2-ethyl-4-methylimidazole; the mass ratio of A to B is 100:(0~45); the mass ratio of A to C is 100:( 1~25).

specific Embodiment approach 2

[0019] Specific embodiment two: this embodiment is different from the specific embodiment one in that: the high temperature resistant, high performance and low toxicity epoxy matrix is ​​prepared according to the following steps: 1. Weigh A, B and C; said A It is an alicyclic trifunctional epoxy resin; the B is an epoxy resin with a viscosity of (0.013pa·s / 25℃~10pa·s / 25℃); the C is a meta-diazocene curing Agent; the meta-diazepine curing agent is 2-ethyl-4-methylimidazole; the mass ratio of A and B is 100: (0~45); the mass of A and C The ratio is 100: (1-25); 2. The A, B, and C weighed in step 1 are stirred and mixed uniformly to obtain a high-temperature resistant, high-performance, low-toxicity epoxy matrix. Others are the same as the first embodiment.

specific Embodiment approach 3

[0020] Specific embodiment 3: The application of the high temperature resistant, high performance, detoxicated epoxy matrix of this embodiment is characterized in that the high temperature resistant, high performance, detoxicated epoxy matrix is ​​used as an adhesive, and the high temperature resistant, high performance, detoxicated epoxy matrix is ​​used as an adhesive. As shown below: polish the surface of the material, the polished surface is the bonding surface, and then the bonding surface is wiped clean to obtain the pre-treated bonding surface, and the high-temperature resistant, high-performance, detoxicated epoxy matrix is ​​coated on the pre-treated The bonding surfaces are bonded together to obtain the bonding part to be cured, and then the bonding part to be cured is cured by a gradient temperature increase to obtain the bonding part after the gradient temperature rise curing, and finally the bonded part after the gradient temperature rise curing is naturally cooled t...

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Abstract

The invention provides a high-temperature resistant and high-performance attenuating epoxy matrix and an application thereof and a preparation method of a composite material of the matrix, and relates to an epoxy matrix and an application thereof and a preparation method of a composite material of the matrix, aiming at solving the problems that the preparation method is complex, the toxicity is relatively large, the environment is polluted, and the preparation cost is high in existing preparation methods of the high-temperature resistant epoxy matrix and the composite material thereof. The high-temperature resistant and high-performance attenuating epoxy matrix is prepared from cycloaliphatic epoxy resin, epoxy resin with viscosity of (0.013pa.s / 25 DEG C to 10pa.s / 25 DEG C), and an iminazole series curing agent. The method for preparing the composite material by using the high-temperature resistant and high-performance attenuating epoxy matrix comprises the following steps: 1, preparing the matrix; and 2, molding and curing the composite material. The method disclosed by the invention is beneficial for environmental protection and decrease of the harms on the human bodies, and is simple in process; the prepared composite material shows outstanding heat resistance, mechanical property and interfacial properties. The preparation method can be applied to the high-tech fields such as the national defense field, the civil filed and the space flight and aviation field.

Description

Technical field [0001] The invention relates to the application of epoxy matrix and the preparation method of composite material. Background technique [0002] High temperature resistant epoxy matrix is ​​an important part of composite materials, and the heat resistance of composite materials mainly depends on the resin matrix. High temperature resistant epoxy matrix suitable for glass fiber is not completely suitable for carbon fiber, because carbon fiber has few surface active groups, so carbon fiber has low surface activity and poor wettability with epoxy matrix, resulting in poor interface bonding with epoxy matrix , Making the interface the weakest part of the composite material, restricting the performance of the composite material; on the other hand, the thermal expansion coefficient of carbon fiber and epoxy matrix is ​​quite different, resulting in poor interface performance, and the interface performance is the most important performance in composite materials. [0003] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L63/00C08G59/40C09J163/00C08J5/24
Inventor 贾丽霞陈辉李晓光
Owner HARBIN FRP INST