少量有机/无机残留对聚苯乙烯高频介电性能的影响  

Influences of Small Amounts of Organic/Inorganic Residues on High-frequency Dielectric Properties of Polystyrene

作　　者：兰涵茗 陈亮[1,2] 魏湖波 刘家楹 马佳俊 杨军校 LAN Han-ming;CHEN Liang;WEI Hu-bo;LIU Jia-ying;MA Jia-jun;YANG Jun-xiao(School of Materials and Chemistry,Southwest University of Science and Technology,Mianyang 621010,China;State Key Laboratory of Environmental-friendly Energy Materials,Southwest University of Science and Technology,Mianyang 621010,China)

机构地区：[1]西南科技大学材料与化学学院,绵阳621010 [2]西南科技大学环境友好能源材料国家重点实验室,绵阳621010

出　　处：《武汉理工大学学报》2024年第6期7-15,共9页Journal of Wuhan University of Technology

基　　金：四川省自然科学基金重点项目(2022NSFSC0032);环境友好能源材料国家重点实验室开放项目(22fksy03)。

摘　　要：高频高速通信技术的发展要求材料须有更低的介电常数和更低的介电损耗因子。介电常数与介电损耗因子不但与材料的化学结构有关,还与材料中的痕量杂质有关。尤其在高频下,异质残留对介电损耗因子有很大影响。工作以聚苯乙烯为标准物,将几种有一定代表性的少量的金属盐、有机分子和无机颗粒分别引入,制成标准的复合树脂测试圆片,在10 GHz的高频率下测得其介电常数与介电损耗因子,研究材料介电性能受到的影响。结果表明,高价金属离子、有机分子或无机颗粒残留明显增加了复合片的介电损耗,但其介电常数变化不大。可通过控制含量、离子价态、分子极性、界面及孔隙率实现对材料高频介电性能的调控。The development of high-frequency and high-speed communication technology requires materials to have lower dielectric constant and lower dielectric loss factor.The dielectric constant and dielectric loss factor are not only relat-ed to the chemical structure of the material,but also to the trace impurities in the material.Especially at high frequencies,heterogeneous residues have a significant impact on the dielectric loss factor.This work used polystyrene as the standard material,and introduced several representative small amounts of metal salts,organic molecules,and inorganic particles to make standard composite resin test discs.The dielectric constant and dielectric loss factor were measured at a high fre-quency of 10 GHz to study the influence of material dielectric properties.The results showed that high valence metal ions,organic molecules or inorganic particle residues significantly increased the dielectric loss of the composite sheet,but their dielectric constant did not change significantly.The high-frequency dielectric properties of materials can be controlled by controlling the content,ion valence state,molecular polarity,interface,and porosity.

关 键 词：高频率 介电性能 聚苯乙烯 有机残留 无机残留 

分 类 号：TB303[一般工业技术—材料科学与工程]