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High temperature resistance and low dielectric glass cloth honeycomb sandwich adhesive and preparation method thereof

A technology of glass cloth and low dielectric, applied in the direction of adhesives, non-polymer adhesive additives, adhesive types, etc., can solve the problems of unsatisfactory process performance and low temperature resistance level of sandwich adhesives

Inactive Publication Date: 2013-09-04
INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention mainly solves the problem that the existing sandwich adhesive has a low temperature resistance grade and the process performance cannot meet the requirements of glass cloth honeycomb manufacturing.

Method used

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  • High temperature resistance and low dielectric glass cloth honeycomb sandwich adhesive and preparation method thereof

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specific Embodiment approach 2

[0023] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the high temperature resistant low dielectric glass cloth honeycomb sandwich adhesive consists of 100 parts by mass of main resin, 20-25 parts of modified resin, 25-25 parts It is prepared by 30 parts of rubber elastic toughening agent, 3-5 parts of inorganic filler, 2-3 parts of silane coupling agent and 220-240 parts of solvent. Others are the same as in the first embodiment.

specific Embodiment approach 3

[0024] Specific embodiment three: what this embodiment is different from specific embodiment one or two is: main body resin is made of novolak type cyanate, bisphenol A type cyanate and bisphenol E type cyanate, wherein novolak type cyanate The mass ratio of ester, bisphenol A cyanate and bisphenol E cyanate is 5:4:1. Others are the same as in the first or second embodiment.

specific Embodiment approach 4

[0025] Specific embodiment four: what this embodiment is different from specific embodiment one or two is: modified resin is prepared by prepolymerization method by double horse resin and modifier, and wherein the mass ratio of double horse resin and modifier is 4: 3; and the double horse resin is composed of 4,4'-diaminodiphenylmethane type double horse resin and BMT type double horse resin, 4,4'-diaminodiphenylmethane type double horse resin and BMT type double horse resin The mass ratio is 2:1; the modifier consists of allyl bisphenol A, allyl ether novolac resin and vinyl nitrile rubber, allyl bisphenol A, allyl ether novolac resin and vinyl The mass ratio of nitrile rubber is 5:3:2. Others are the same as in the first or second embodiment.

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Abstract

The invention discloses a high temperature resistance and low dielectric glass cloth honeycomb sandwich adhesive and a preparation method thereof and relates to an adhesive and a preparation method thereof. The adhesive and the preparation method thereof aim at mainly solving the problems of the existing sandwich adhesive that the temperature resistance level is low, and the processing property cannot satisfy the manufacturing requirements of a glass cloth honeycomb. The adhesive is prepared from matrix resin, modified resin, a rubber elastomer toughening agent, an inorganic filler, a silane coupling agent and a solvent. The preparation method comprises the steps of: (1) weighing raw materials, and preparing the modified resin; (2) adopting a mechanical blending method to prepare a blended adhesive sheet by virtue of the rubber elastomer toughening agent and the inorganic filler; and (3) sequentially adding the blended adhesive sheet, the matrix resin, the modified resin and the silane coupling agent into the solvent, dissolving and uniformly mixing the matrix resin, the modified resin, the silane coupling agent and the solvent in a mixing state, and preparing the high temperature resistance and low dielectric glass cloth honeycomb sandwich adhesive. The high temperature resistance and low dielectric glass cloth honeycomb sandwich adhesive has the characteristics of resistance in high temperature and low dielectric and is applied to manufacturing a high temperature resistance and low dielectric glass cloth honeycomb.

Description

technical field [0001] The present invention relates to an adhesive and a method for its preparation. Background technique [0002] The honeycomb sandwich structure has been widely used in aviation and aerospace fields because of its high specific strength and specific modulus, good fatigue resistance, good vibration resistance, and effective absorption of impact loads. Among them, glass cloth honeycomb is often used in radome and some stealth structures because of its good dielectric properties (wave permeability and electrical insulation properties, etc.), while glass cloth honeycomb impregnated with polyimide has excellent heat resistance. It has been applied in the manufacture of high temperature resistant and low dielectric honeycomb sandwich structures. [0003] Glass cloth honeycomb manufacturing is mainly composed of glass cloth, sandwich adhesive and external impregnation resin. Sandwich adhesive is an important molding material in the process of glass cloth honeyc...

Claims

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Application Information

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IPC IPC(8): C09J179/04C09J179/08C09J109/02C09J11/04C09J11/06
Inventor 王德志曲春艳宿凯毛勇冯浩张杨李洪峰杨海冬王海民
Owner INST OF PETROCHEM HEILONGJIANG ACADEMY OF SCI
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