Title:
TERNARY COMPOSITE WAVE-ABSORBING AGENT AND PREPARATION METHOD THEREFOR
Document Type and Number:
WIPO Patent Application WO/2020/119242
Kind Code:
A1
Abstract:
Disclosed are a ternary composite wave-absorbing agent and a preparation method therefor. The preparation method comprises the following steps: S1: wrapping a conductive polymer on the surface of oxidized graphene to obtain a binary composite body; and S2: compositing magnetic particles with the binary composite body and performing reduction on the binary composite body to obtain a ternary composite wave-absorbing agent. The conductive polymer is uniformly clad on the surface of graphene, which does not destroy the wrinkled structure of the oxidized graphene so as to offset the problem of electrical conductivity degradation due to a defect produced in a reduction process of the oxidized graphene, and enables the wave-absorbing agent and base materials to have good compatibility so as to improve the absorbing property of the wave-absorbing agent; furthermore, electromagnetic parameters of the composite material are controlled to adjust impedance matching, and interface loss produced by a multi-layer interface of the ternary composite material under an external electrical field also facilitates the improvement in the dielectric loss of the material, thereby significantly improving the wave-absorbing properties of the graphene-based wave-absorbing agent.
Inventors:
LIU RUOPENG (CN)
ZHAO ZHIYA (CN)
NAN XI (CN)
ZHAO ZHIYA (CN)
NAN XI (CN)
Application Number:
PCT/CN2019/111306
Publication Date:
June 18, 2020
Filing Date:
October 15, 2019
Export Citation:
Assignee:
LUOYANG INSTITUTE OF CUTTING EDGE TECH (CN)
LUOYANG CUTTING EDGE EQUIPMENT TECH LTD (CN)
LUOYANG CUTTING EDGE EQUIPMENT TECH LTD (CN)
International Classes:
C08G61/12; C08K3/04; C08K3/22
Domestic Patent References:
| WO2018157400A1 | 2018-09-07 |
Foreign References:
| CN103304807A | 2013-09-18 | |||
| CN103450463A | 2013-12-18 |
Other References:
LIU, PANBO: "Preparation and Microwave Absorption Properties of Graphene-conducting Polymers-magnetic Nanoparticles Composites", CHINESE DOCTORAL DISSERTATIONS FULL-TEXT DATABASE, ENGINEERING SCIENCE & TECHNOLOGY I, no. 01, 15 January 2017 (2017-01-15)
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