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Sandwich adhesive for high-strength aramid fibre paper honeycomb and preparation method thereby

A kind of aramid paper, high-strength technology, applied in the direction of adhesives, adhesive additives, carboxyl rubber adhesives, etc., can solve the problems of material waste, honeycomb node cracking, etc., to avoid a lot of waste, high strength and toughness, increase toughness and the effect of heat resistance

Active Publication Date: 2013-08-21
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 sandwich adhesive of the present invention has higher strength and toughness than existing products, and solves the problem of honeycomb node cracking due to low adhesive strength in the manufacturing process of high-density, high-strength aramid paper honeycomb, avoiding massive waste of material

Method used

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Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0020] Specific Embodiment 1: In this embodiment, a high-strength aramid paper honeycomb sandwich adhesive is characterized in that the high-strength aramid paper honeycomb sandwich adhesive consists of 75 to 100 parts by weight of main resin, 45 ~65 parts of rubber elastomer, 5~20 parts of core-shell rubber particles, 15~30 parts of curing agent, 5~20 parts of inorganic filler, 0.5~2.0 parts of rubber crosslinking agent, 1~4 parts of silane coupling agent and 450~ 650 parts of solvent made.

specific Embodiment approach 2

[0021] Specific embodiment 2: The difference between this embodiment and specific embodiment 1 is that the high-strength aramid paper honeycomb sandwich adhesive consists of 80-90 parts by weight of main resin, 50-60 parts of rubber elastic body, 10-15 parts of core-shell rubber particles, 20-25 parts of curing agent, 10-15 parts of inorganic filler, 1.0-1.5 parts of rubber crosslinking agent, 2-3 parts of silane coupling agent and 500-600 parts of solvent. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0022] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the main resin is composed of bisphenol A epoxy resin and high ortho phenolic resin, wherein bisphenol A epoxy resin and high ortho phenolic resin The mass ratio of the resins is 3:1. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a sandwich adhesive for a high-strength aramid fibre paper honeycomb and a preparation method thereof, and relates to an adhesive and a preparation method thereof. The sandwich adhesive disclosed by the invention is higher in strength and toughness compared with the existing product, thus solving the problem of honeycomb node cracking during a manufacturing and drawing process for the high-strength aramid fibre paper honeycomb. The sandwich adhesive disclosed by the invention is prepared from matrix resin, a rubber elastomer, nuclear shell rubber, a curing agent, inorganic filler, a rubber cross-linking agent, a silane coupling agent and a solvent. The preparation method for the sandwich adhesive disclosed by the invention comprises the following steps of: 1, preparing B-stage resin; 2, preparing a mixed adhesive sheet; and 3, adding the mixed adhesive sheet, the B-stage resin and the silane coupling agent in the solvent, dissolving and uniformly mixing in a stirring state, and then preparing the sandwich adhesive for the high-strength aramid fibre paper honeycomb. The sandwich adhesive disclosed by the invention has the characteristics of high strength and high toughness, and is mainly used for preparing the high-strength aramid fibre paper honeycomb.

Description

technical field [0001] The invention relates to an adhesive and a preparation method thereof. Background technique [0002] Aramid paper honeycomb has the advantages of low density, high specific strength, high specific stiffness, impact resistance, corrosion resistance, vibration energy absorption, good high temperature stability and dielectric properties, and is used as an important core material for sandwich structures in aircraft It has been widely used in many important structural components and has a tendency to replace aluminum honeycomb. [0003] Aramid paper honeycomb core material is made of aramid paper through a series of complex processes such as glue coating, lamination, pressing and curing of honeycomb stacks, cutting, stretching and dipping. Aramid paper is mainly divided into meta-aramid paper and para-aramid paper. The most common on the market is the meta-aramid paper (Nomex paper) first invented and put into use by DuPont in the United States in the 1960...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/02C09J161/06C09J109/02C09J113/00C09J151/04C09J151/08C09J11/04C09J11/06
Inventor 曲春艳王德志毛勇宿凯张杨王海民冯浩李洪峰杨海冬李公淳
Owner INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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