Silica gel wave-absorbing material for high-frequency welding and preparation method thereof

A wave-absorbing material and high-frequency welding technology, which is applied in the field of high-frequency welding silicone wave-absorbing material and its preparation, can solve problems such as poor wave-absorbing effect, and achieve stable and good wave-absorbing performance

Inactive Publication Date: 2020-11-10
SHENZHEN HECHANG ELECTROMAGNETIC MATERIALS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In view of the deficiencies in the prior art above, the purpose of the present invention is to provide a silica gel absorbing material for high-frequency welding and its preparation method, aiming to solve the poor absorbing effect of existing absorbing materials in the field of high-frequency welding The problem

Method used

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  • Silica gel wave-absorbing material for high-frequency welding and preparation method thereof
  • Silica gel wave-absorbing material for high-frequency welding and preparation method thereof
  • Silica gel wave-absorbing material for high-frequency welding and preparation method thereof

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Effect test

Embodiment 1

[0056] A silica gel wave-absorbing material for high-frequency welding provided in this embodiment, in parts by mass, includes: 100 parts of silicone rubber; 8 parts of reinforcing agent; 3 parts of coupling agent; 10 parts of vulcanizing agent; 400 parts Absorbent.

[0057] Its preparation method is as follows:

[0058] S1. Surface-treat the wave-absorbing agent with a coupling agent, and then stir the wave-absorbing agent treated with the coupling agent with the silicone rubber;

[0059] S2. Stir the mixture obtained by stirring with the remaining raw materials until they are evenly mixed;

[0060] S3. The mixture obtained by uniform mixing is poured into a calender to be calendered and solidified to obtain a silica gel wave-absorbing material. The specific conditions for calendering and curing are: curing at a temperature of 150°C for 5 minutes;

[0061] S4. Winding up the silica gel absorbing material by a winding machine.

Embodiment 2

[0063] A silica gel wave-absorbing material for high-frequency welding provided in this embodiment, in parts by mass, includes: 200 parts of silicone rubber; 1 part of reinforcing agent; 15 parts of coupling agent; 0.8 parts of vulcanizing agent; 900 parts Absorbent.

[0064] Its preparation method is as follows:

[0065] S1. Surface-treat the wave-absorbing agent with a coupling agent, and then stir the wave-absorbing agent treated with the coupling agent with the silicone rubber;

[0066] S2. Stir the mixture obtained by stirring with the remaining raw materials until they are evenly mixed;

[0067] S3. The mixture obtained by uniform mixing is poured into a calender to be calendered and solidified to obtain a silica gel wave-absorbing material. The specific conditions for calendering and curing are: curing at 150°C for 15 minutes;

[0068] S4. Winding up the silica gel absorbing material by a winding machine.

Embodiment 3

[0070] A silica gel wave-absorbing material for high-frequency welding provided in this embodiment, in parts by mass, includes: 150 parts of silicone rubber; 5 parts of reinforcing agent; 10 parts of coupling agent; 5 parts of vulcanizing agent; 600 parts Absorbent.

[0071] Its preparation method is as follows:

[0072] S1. Surface-treat the wave-absorbing agent with a coupling agent, and then stir the wave-absorbing agent treated with the coupling agent with the silicone rubber;

[0073] S2. Stir the mixture obtained by stirring with the remaining raw materials until they are evenly mixed;

[0074] S3. The mixture obtained by uniform mixing is poured into a calender to be calendered and solidified to obtain a silica gel wave-absorbing material. The specific conditions for calendering and curing are: curing at 150°C for 10 minutes;

[0075] S4. Winding up the silica gel absorbing material by a winding machine.

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Abstract

The invention discloses a silica gel wave-absorbing material for high-frequency welding and a preparation method of the silica gel wave-absorbing material. The silica gel wave-absorbing material comprises the following components in parts by mass: 100-200 parts of silicone rubber; 1-8 parts of a reinforcing agent; 3-15 parts of a coupling agent; 0.8-10 parts of vulcanizing agent; and 400-900 partsof a wave absorbing agent. Compared with a common wave-absorbing material on the market, the wave-absorbing material prepared through the method is applied to the field of high-frequency welding, itcan be guaranteed that the good wave-absorbing performance is achieved, and the wave-absorbing performance of the prepared wave-absorbing material is more stable.

Description

technical field [0001] The invention relates to the field of electromagnetic wave absorbing materials, in particular to a silica gel absorbing material for high-frequency welding and a preparation method thereof. Background technique [0002] The so-called absorbing material refers to a class of materials that can absorb or greatly weaken the electromagnetic wave energy projected onto its surface, thereby reducing the interference of electromagnetic waves. In engineering applications, in addition to requiring a high absorption rate of electromagnetic waves in a wide frequency band, the absorbing material is also required to have properties such as light weight, temperature resistance, moisture resistance, and corrosion resistance. [0003] According to the loss mechanism, the absorbing materials can be divided into the following three categories: 1), resistive loss, this type of absorbing mechanism is related to the resistive loss of the conductivity of the material, that is...

Claims

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Application Information

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IPC IPC(8): C08L83/07C08K13/06C08K9/06C08K9/04C08K7/26C08K3/34C08K3/08C08K3/04
CPCC08K3/04C08K3/08C08K3/34C08K7/26C08K9/04C08K9/06C08K13/06C08L83/04
Inventor 罗信拓毛向华
Owner SHENZHEN HECHANG ELECTROMAGNETIC MATERIALS CO LTD
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