Foaming type electromagnetic wave absorption composite material and preparation method thereof
A technology of electromagnetic wave absorption and composite materials, applied in chemical instruments and methods, other chemical processes, etc., can solve problems such as sedimentation and agglomeration, affect electromagnetic wave absorption, poor dispersion, etc., achieve good absorption function, prolong service life, and reduce oxidation Effect
Inactive Publication Date: 2010-12-01
李勇
0 Cites 48 Cited by
AI-Extracted Technical Summary
Problems solved by technology
View more
Abstract
The invention discloses a foaming type electromagnetic wave absorption composite material and a preparation method thereof. The electromagnetic wave absorption composite material is prepared from 10 to 40 mass percent of an electromagnetic absorbent and 60 to 90 mass percent of a base material through a foaming process. Impedance matching between the base material and air is improved by uniform gaps formed by foaming, and a powder material with electromagnetic wave absorption function is uniformly diffused in the foaming process of the base and adsorbed on foam hole walls to form a dielectric loss and magnetic hysteresis loss electromagnetic wave absorption network, so that the electromagnetic waves entering the base are converted into heat energy and attenuated through motion such as reflection, refraction, vortex, resonance and the like. The foaming type electromagnetic wave absorption composite material is widely applied to the field of electromagnetic radiation, electromagnetic interference and electromagnetic information leakage prevention, suppression and absorption treatment.
Application Domain
Other chemical processes
Technology Topic
Dielectric lossElectromagnetic interference +10
Examples
- Experimental program(1)
Example Embodiment
PUM


Description & Claims & Application Information
We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.
Similar technology patents
Flat-mold hot extrusion process of nickel-based powder superalloy
Owner:SINO EURO MATERIALS TECH OF XIAN CO LTD
Algae oil DHA liquid beverage and preparation method thereof
Owner:WUHU HYK FOOD CO LTD
Preparation method of rapeseed oil with high anti-freezing property
Owner:合肥市晶谷米业有限公司
Conductivity Measurement Method for Reducing Conductor Oxidation
Owner:SOLTEAM OPTO
Classification and recommendation of technical efficacy words
- Extended service life
- reduce oxidation
Wind power and photovoltaic power complementary power supply system based on mixed energy accumulation of super capacitor accumulator
Owner:INST OF ELECTRICAL ENG CHINESE ACAD OF SCI
Fracturing manifold quick connecting device
Owner:YANTAI JEREH PETROLEUM EQUIP & TECH
Touch screen type mobile apparatus micro-browser webpage displaying and drifting method
Owner:SHANGHAI TONEHUB CORP
Modified asphalt composition with creeping characteristic and preparation method thereof
Owner:ZHEJIANG WOPUMAN HIGH NEW MATERIALS
Multi-layer flash-memory device, a solid hard disk and a truncation non-volatile memory system
Owner:INFOMICRO ELECTRONICS SHENZHEN