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Harmonic and stray electromagnetic radiation restraining material and preparation method thereof

An electromagnetic radiation and stray technology, applied in chemical instruments and methods, other chemical processes, etc., can solve the problems of reducing the operation stability of neighboring electronic equipment, unfavorable working performance, electronic device interference, etc., to meet the requirements of harmonic and electromagnetic The need for radiation suppression, the impact of reduced operating performance, the effect of large conformity

Inactive Publication Date: 2018-05-08
湖北航聚科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] On the one hand, electronic equipment has obvious sensitivity and vulnerability to electromagnetic radiation interference. The operation of high-power equipment makes the equipment around it subject to strong electromagnetic radiation, which will significantly reduce the stability of the operation of its neighboring electronic equipment. On the other hand, the miniaturization and high frequency of electrical equipment are the inevitable trend of market development, which makes the spacing between electronic sensitive components smaller and smaller, and the probability of interference of electronic devices also increased accordingly

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Embodiments of the present invention provide a harmonic and stray electromagnetic radiation suppression material and a preparation method thereof, which specifically include:

[0030] In parts by weight, a mixed solvent of 25 parts of polyurethane rubber, 2 parts of vulcanizing agent, 1 part of antifungal agent, 2 parts of antiaging agent and 25 parts of xylene, butyl acetate, n-butanol and cyclohexanone is added to In a beaker, heat and stir in a water bath until evenly mixed, then add 70 parts of sendust powder to fully mix the sendust powder in the glue, then grind the material to a fineness of less than 100 μm, cast and dry to obtain a thickness of 0.08 Thin green embryos with a thickness of mm are superimposed and placed in the mold and heated and pressurized by a flat vulcanizer to obtain a harmonic and stray electromagnetic radiation suppression material with a thickness of 1.6mm. The processing temperature is 140°C and the pressure is 23MPa. The time is 30 minut...

Embodiment 2

[0032] Embodiments of the present invention provide a harmonic and stray electromagnetic radiation suppression material and a preparation method thereof, which specifically include:

[0033] In parts by weight, a mixed solvent of 20 parts of polyurethane rubber, 3 parts of vulcanizing agent, 2 parts of antifungal agent, 2 parts of antiaging agent and 27 parts of xylene, butyl acetate, n-butanol and cyclohexanone is added to In a beaker, heat and stir in a water bath until evenly mixed, then add 68 parts of sendust powder to fully mix the sendust powder in the glue, then grind the material to a fineness of less than 100 μm, cast and dry to obtain a thickness of 0.08mm Thick and thin green embryos are superimposed and placed in the mold and heated and pressurized by a flat vulcanizer to obtain a harmonic and stray electromagnetic radiation suppression material with a thickness of 1.6mm. The processing temperature is 140°C, the pressure is 23MPa, and the vulcanization time is for...

Embodiment 3

[0035] Embodiments of the present invention provide a harmonic and stray electromagnetic radiation suppression material and a preparation method thereof, which specifically include:

[0036] In parts by weight, a total of 22 parts of polyurethane rubber and EPDM rubber, 4 parts of vulcanizing agent, 1 part of antifungal agent, 3 parts of antiaging agent and 27 parts of xylene, butyl acetate, n-butanol, cyclic Add the mixed solvent of hexanone into the beaker, heat and stir in a water bath until the mixture is uniform, then add 75 parts of sendust powder, so that the sendust powder is fully mixed in the glue solution, and then grind the material to a fineness of less than 100 μm for casting , drying to obtain a thin green body with a thickness of 0.08 mm, which is superimposed and placed in a mold, heated and pressurized by a flat vulcanizer to obtain a harmonic and stray electromagnetic radiation suppression material with a thickness of 1.6 mm, wherein the processing temperatur...

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PUM

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Abstract

The invention discloses a harmonic and stray electromagnetic radiation restraining material and a preparation method thereof. The harmonic and stray electromagnetic radiation restraining material is prepared from the following components in parts by weight: a radar absorbent, liquid rubber, a sulfurizing agent, a mildew preventive, an anti-aging agent and a diluent. The preparation method comprises the following steps: heating the liquid rubber, the sulfurizing agent, the mildew preventive, the anti-aging agent and the diluent, and uniformly mixing according to a formula amount; adding the radar absorbent; fully mixing; grinding; performing curtain coating and drying to obtain a thin green body; preforming vulcanization to obtain the restraining material disclosed by the invention. The restraining material has the characteristics of high harmonic and stray electromagnetic radiation restraining capability and superior mechanical property, and the problem of interference of harmonic andstray electromagnetic radiation generated by large-power frequency equipment on peripheral precision electronic equipment can be solved effectively.

Description

technical field [0001] The invention belongs to the field of radar absorbing materials, in particular to a harmonic and stray electromagnetic radiation suppressing material and a preparation method thereof. Background technique [0002] Electromagnetic radiation refers to the process in which the energy of the electromagnetic field propagates to the surrounding space in the form of electromagnetic waves, including ionizing radiation and non-ionizing radiation. There is an electric field around any charged object, and the periodically changing electric field will generate a periodically changing magnetic field, forming electromagnetic waves, thereby generating electromagnetic radiation, and excessive electromagnetic radiation will cause electromagnetic pollution. [0003] On the one hand, electronic equipment has obvious sensitivity and vulnerability to electromagnetic radiation interference. The operation of high-power equipment makes the equipment around it subject to stron...

Claims

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Application Information

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IPC IPC(8): C09K3/00
CPCC09K3/00
Inventor 肖勇陈海亚周超马雪松
Owner 湖北航聚科技有限公司
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