Carbon-based porous flexible composite wave-absorbing material and preparation method thereof

A composite wave-absorbing material and wave-absorbing material technology, applied in the field of wave-absorbing materials and composite materials, can solve the problems of inability to meet material performance requirements, complex process methods, low temperature resistance, etc., and achieve low cost, good repeatability, The effect of easy operation
CN105086472AActive Publication Date: 2015-11-25INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
INST OF NUCLEAR PHYSICS & CHEM CHINA ACADEMY OF
Publication Date
2015-11-25

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Abstract

The invention discloses a carbon-based porous flexible composite wave-absorbing material and a preparation method thereof. The carbon-based porous flexible composite wave-absorbing material and the preparation method thereof are characterized in that pretreatment is conducted on one part of a carbon-based wave-absorbing agent, and then mixing molding is conducted on the treated carbon-based wave-absorbing agent, 0.2-0.4 part of a fluxing agent, 40-100 parts of silicone rubber, 10-30 parts of reinforcing agents, 0-5 parts of radiosensitizer and 0-3 parts of flame retardants; rubber materials molded through mixing are put into a mold, rolling is conducted on the rubber materials at 100-150 kg.cm<-2>, and a thin sheet with the thickness ranging from 0.5 mm to 5 mm is prepared; after plastic sealing is conducted on the thin sheet with the mold, the plastic-sealed thin sheet with the mold is put into a gamma-ray irradiation field or an electron beam accelerator to enable the total absorbed dose to be kept at 30-100 kGy, radiation crosslinking is conducted, after a plastic package and the mold are removed, edges are cut off, and the carbon-based porous flexible composite wave-absorbing material is obtained. According to the carbon-based porous flexible composite wave-absorbing material and the preparation method thereof, the technology is simple, complex chemical process control or professional auxiliary equipment is not needed, only simple equipment such as a double-roller mixing mill is needed, and the cost is lower; the prepared material is excellent in flexibility and wave-absorbing performance, the preparation process is easy and rapid to control, the repeatability is good, and energy conservation and environment protection are achieved.
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Description

technical field

[0001] The invention belongs to the technical field of wave-absorbing materials and composite materials, and in particular relates to a carbon-based porous flexible composite material with wave-absorbing performance and a preparation method thereof. Background technique

[0002] With the rapid development of modern science and technology, due to its ability to effectively absorb electromagnetic waves, wave-absorbing materials help to improve the survival and penetration of equipment systems and deep strike capabilities, eliminate / reduce electromagnetic interference between electronic equipment, and improve system performance. Electromagnetic compatibility is widely used in military and civilian fields such as various aircraft, weapons and equipment, electronic devices, and communications.

[0003] Flexible absorbing materials belong to the category of composite materials. Because of their flexibility, they are different from the rigidity of conventional absor...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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