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Composite prepreg and ethylene propylene diene monomer heat insulation layer co-curing adhesive film and preparation method thereof

A technology of EPDM rubber and composite materials, which is applied in the direction of carboxyl rubber adhesives, adhesives, epoxy resin glue, etc., and can solve the problems of poor stability of gluing process, difficulty in controlling the thickness of the glue layer, and poor reliability of bonding, etc. problem, to achieve the effect of accurate and controllable quality per unit area, uniform film thickness and good paving property

Active Publication Date: 2022-01-18
INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to solve the existing high-speed aircraft engine composite material shell and EPDM rubber heat insulation layer bonding and continue to use the original metal shell and ternary Ethylene-propylene rubber thermal insulation layer bonding material and bonding process, the thickness of the adhesive layer is difficult to control, the quality uniformity is not good, the stability of the sizing process is poor, and the reliability of the bonding is poor. To provide a composite material prepreg and three Co-cured adhesive film of ethylene-propylene rubber thermal insulation layer and preparation method thereof

Method used

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  • Composite prepreg and ethylene propylene diene monomer heat insulation layer co-curing adhesive film and preparation method thereof
  • Composite prepreg and ethylene propylene diene monomer heat insulation layer co-curing adhesive film and preparation method thereof
  • Composite prepreg and ethylene propylene diene monomer heat insulation layer co-curing adhesive film and preparation method thereof

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specific Embodiment approach 1

[0017] Specific implementation mode 1: In this embodiment, the composite material prepreg and the EPDM rubber insulation layer are co-cured and the adhesive film is composed of 30-50 parts by weight of the main resin, 25-45 parts of the main toughening agent, and 10-50 parts by weight. Prepared by 25 parts of auxiliary toughening agent, 5-15 parts of curing agent, 3-12 parts of vulcanizing agent and 1-4 parts of filler;

[0018] The main resin is composed of side chain epoxy resin containing naphthalene ring structure and other epoxy resins, wherein the side chain epoxy resin containing naphthalene ring structure accounts for 40% to 50% of the mass of the main resin; the other epoxy resins The resin is one of bisphenol A type epoxy resin, trifunctional alicyclic epoxy resin and o-cresol novolak type epoxy resin or a mixture of several of them.

specific Embodiment approach 2

[0019] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the structural formula of the side chain containing naphthalene ring structure epoxy resin described in step one is:

[0020] The structural formula of described trifunctional alicyclic epoxy resin is:

[0021] The structural formula of described o-cresol novolak type epoxy resin is:

[0022] Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0023] Embodiment 3: The difference between this embodiment and Embodiment 1 or 2 is that the composite material prepreg and the EPDM rubber insulation layer are co-cured and the adhesive film is composed of 30 to 45 parts by weight. It is prepared by resin, 30-45 parts of main toughening agent, 15-20 parts of auxiliary toughening agent, 8-12 parts of curing agent, 6-9 parts of vulcanizing agent and 2-4 parts of filler. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention relates to a composite prepreg and ethylene propylene diene monomer heat insulation layer co-curing adhesive film and a preparation method thereof. The invention belongs to the technical field of adhesives, and relates to a composite prepreg and ethylene propylene diene monomer heat insulation layer co-curing adhesive film and a preparation method thereof. The composite prepreg and ethylene propylene diene monomer heat insulation layer co-curing adhesive film is prepared from the following components in parts by weight: matrix resin, a main flexibilizer, an auxiliary flexibilizer, a curing agent, a vulcanizing agent and a filler. The method comprises the following steps of: 1, performing weighing; 2, preparing homogeneous-phase blended resin; 3, preparing a rubber material; and 4, performing preheating and pressing. The adhesive film material disclosed by the invention has good autohension and a good paving property on an ethylene propylene diene monomer heat insulation layer; and meanwhile, the thickness of the adhesive film is uniform, the mass per unit area is accurate and controllable, and the stability and the reliability of co-curing adhesive joint of a composite prepreg and the ethylene propylene diene monomer heat insulation layer are ensured. With the preparation method adopted, the composite prepreg and ethylene propylene diene monomer heat insulation layer co-curing adhesive film can be obtained.

Description

technical field [0001] The invention belongs to the technical field of adhesives, and in particular relates to a co-cured adhesive film of a composite material prepreg and an EPDM rubber heat insulation layer and a preparation method thereof. Background technique [0002] Resin-based composite materials have the advantages of high specific strength, high specific modulus, and designability of mechanical properties, and are currently the most ideal materials for lightweight design. Due to the requirement of light weight, composite materials are mostly used instead of metal materials in the manufacture of high-speed aircraft engines, that is, composite material prepregs and EPDM rubber insulation layers are co-cured and formed through interface bonding materials. [0003] However, at present, the bonding materials and bonding process of the original metal shell and the EPDM rubber insulation layer for the high-speed aircraft engine composite material casing and the EPDM insula...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J163/04C09J123/28C09J109/02C09J113/00C09J183/04C09J181/06C09J11/04C09J11/06C09J7/10C09J7/30
CPCC09J163/00C09J11/04C09J11/06C09J7/10C09J7/30C08K2003/2296C08K2003/265C08L63/00C08L63/04C08L23/28C08L9/02C08L13/00C08L83/04C08L81/06C08K3/06C08K5/14C08K3/22C08K3/26C08K3/04Y02T50/40
Inventor 冯浩王德志曲春艳赵立伟张杨宿凯李洪峰杨海冬刘长威肖万宝王海民杜明关悦瑜李晓鹏
Owner INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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