Wave-absorbing adhesive, preparation method thereof and wave-absorbing material

A technology of wave absorbing materials and adhesives, applied in the field of wave absorbing materials, can solve the problems of inability to meet structural wave absorbing materials, unable to achieve wave absorbing effect, and high brittleness of adhesive, and achieve good radar wave absorption function and good system. mutual solubility, the effect of improving toughness and strength

Pending Publication Date: 2021-04-20
深圳市方科马新材料有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after the existing adhesive is cured, the thickness of the adhesive layer is relatively thin, the performance of absorbing radar waves is poor, and the expected wave-absorbing effect cannot be achieved, and the existing adhesive has high adhesive brittleness and low peel strength, making it difficult to ensure Good absorbing performance and good adhesive performance are taken into account at the same time, so the existing adhesives cannot meet the requirements of structural absorbing materials, resulting in low structural stability and poor absorbing performance of structural absorbing materials

Method used

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  • Wave-absorbing adhesive, preparation method thereof and wave-absorbing material

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preparation example Construction

[0027] Such as figure 1 As shown, a method for preparing a wave-absorbing adhesive according to a preferred embodiment of the present invention is specifically illustrated. Such as figure 1 Shown, the preparation method of described wave-absorbing adhesive comprises the following steps:

[0028] S1. Stir and mix the main resin material, aromatic amine curing agent, elastomer, toughening agent, coupling agent and auxiliary agent evenly to obtain a mixed glue; and

[0029] S2. Add an absorbent to the mixed glue, stir and mix evenly to obtain the wave-absorbing adhesive.

[0030] It is worth mentioning that in the step S1, 90-110 parts of main resin material, 22-26 parts of aromatic amine curing agent, 12-16 parts of elastomer, 38-48 parts of toughening agent, 1-2 parts of coupling agent and 3-7 parts of auxiliary agent are stirred and mixed evenly to obtain the mixed glue.

[0031] In addition, it is also worth mentioning that in the step S2, 20-40 parts of absorbent are add...

Embodiment 1

[0051] This embodiment provides a microwave-absorbing adhesive, which is prepared according to the following steps:

[0052] First, by weight fraction, 100 parts of epoxy resin, 24 parts of diaminodiphenyl sulfone, 14 parts of isoprene rubber, 40 parts of modified polystyrene materials, 1 part of silane coupling agent, 5 parts of auxiliary agents and 1 part Part of ethanol was stirred at 2500r / min for 10min to obtain a mixed glue; secondly, 30 parts of carbonyl iron powder was added to the mixed glue, and stirred at 2500r / min for 10min to obtain the wave-absorbing adhesive.

Embodiment 2

[0054] This embodiment provides a microwave-absorbing adhesive, which is prepared according to the following steps:

[0055] First, by weight fraction, 90 parts of epoxy resin, 22 parts of diaminodiphenyl sulfone, 12 parts of isoprene rubber, 38 parts of modified polystyrene materials, 1 part of silane coupling agent, 3 parts of auxiliary agents and 0.9 One part of ethanol was stirred at 2500r / min for 10min to obtain a mixed glue; secondly, 20 parts of carbonyl iron powder was added to the mixed glue and stirred at 2500r / min for 10min to obtain the wave-absorbing adhesive.

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Abstract

The invention relates to a wave-absorbing adhesive, a preparation method thereof and a wave-absorbing material. It is ensured that the wave-absorbing adhesive has high bonding strength, good system intersolubility and high dimensional stability by adopting a mode of taking a resin material with good radar transmission and dielectric transmission properties as matrix resin. A modified thermoplastic material with good radar transmission and dielectric properties is used as a toughening agent, so that the toughness and the strength of the wave-absorbing adhesive are improved; a dielectric loss type absorbent or a magnetic loss type absorbent is added, so that the wave-absorbing performance of the wave-absorbing adhesive is enhanced; and therefore, the finally obtained wave-absorbing adhesive not only has the mechanical properties of a structural adhesive, but also has a good radar wave absorption function, and can meet the requirements of a structural wave-absorbing material.

Description

technical field [0001] The invention relates to the technical field of wave-absorbing materials, in particular to a wave-absorbing adhesive, a preparation method thereof, and a wave-absorbing material. Background technique [0002] Stealth technology refers to the technology that reduces the detectability of the target in a certain remote sensing detection environment, making it difficult to be found within a certain range. In recent decades, stealth technology has been applied in various aircraft (aircraft, missiles), ships, bridges, tanks and other ground military facilities, greatly improving the penetration capability and survival rate. [0003] The maximum detection distance of the radar is directly proportional to the radar reflection cross-section area, so reducing the radar reflection cross-section area of ​​the aircraft is the core of stealth technology, which can reduce the detectability of the target. There are two existing ways to reduce the radar reflection cro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09J163/00C09J161/06C09J179/08C09J11/08C09J11/04
Inventor 田哲张成杰周彦鹏李凯孔晶晶
Owner 深圳市方科马新材料有限公司
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