中国塑料2024，Vol.38Issue(6)：19-24,6.DOI:10.19491/j.issn.1001-9278.2024.06.003
导热吸波双功能粉体改性设计研究
Study on modification and design of thermal conductive and microwave absorbing dual-functional powders
摘要
Abstract
A type of thermal conductive and microwave absorbing dual-functional powders were designed with different ra-tios and particle sizes using aluminum oxide(Al2O3)as thermal conductivity powders,sendust(FeSiAl)as microwave absorbing powders,and dodecyltriethoxysilane(C12)as a modifier.The resultant dual-functional powders were filled in a silicone oil to prepare a thermal conductive and microwave absorbing pad,thus developing a series of thermal conductiv-ity absorbing dual-function integrated materials.The results indicated that C12 generated a good lipophilic modification effect on Al2O3 and FeSiAl.The thermal conductive and microwave absorbing pad showed a thermal conductivity of 5.92 W/(m·K)at a Al2O3/FeSiAl mass ratio of 20∶80,exhibiting a good absorbing capability in the frequency range of 4.8～6.5 GHz.Ensuring a high thermal conductivity,the as-prepared powders were endowed with a wave-absorbing ca-pability.Meanwhile,it is easy for the powders to be compressed and convenient for practical assembly applications,and their 50-psi compression stress reached a compression strain of 50% .关键词
导热/吸波/改性/压缩Key words
thermal conductivity/microwave absorbing/modification/compression分类
化学化工引用本文复制引用
高玮,熊昌义,韩飞,孔泥早,颜渊巍..导热吸波双功能粉体改性设计研究[J].中国塑料,2024,38(6):19-24,6.基金项目
湖南创新型省份建设专项项目(2022GK2034) （2022GK2034）
