氧化镧对低介电玻璃纤维性能的影响  

The Effect of Lanthanum Oxide on Properties of Low Dielectric Glass Fibers

作　　者：钟报安 赵文略 林文桂 徐少锋 曾云浩 钱奇 ZHONG Baoan;ZHAO Wenlue;LIN Wengui;XU Shaofeng;ZENG Yunhao;QIAN Qi(Qingyuan Zhongxin Century Electronic Materials Co.,Ltd.,Qingyuan 511545,China;School of Materials Science and Engineering,South China University of Technology,Guangzhou 510640,China;Guangdong Glass Fiber Materials Engineering Technology Research Center,Qingyuan 511545,China;State Key Laboratory of Luminescent Materials and Devices,Guangzhou 510640,China)

机构地区：[1]清远忠信世纪电子材料有限公司,清远511545 [2]华南理工大学材料科学与工程学院,广州510640 [3]广东省玻纤材料工程技术研究中心,清远511545 [4]发光材料与器件国家重点实验室,广州510640

出　　处：《玻璃》2023年第5期1-7,共7页Glass

基　　金：清远市新型高性能材料产业人才振兴计划(扬帆计划)项目(2021YFJH02001)。

摘　　要：通过在玻璃中分别引入La_(2)O_(3)和Na_(2)O,对比研究了La_(2)O_(3)加入后对低介电玻璃黏度、玻璃熔制温度、拉丝作业温度、玻璃膨胀系数、玻璃介电常数和介电损耗的影响规律。研究结果表明,玻璃中引入La_(2)O_(3)能有效降低玻璃熔制温度和拉丝作业温度。与引入Na_(2)O相比,玻璃中引入La_(2)O_(3)对膨胀系数和介电常数的影响与引入Na_(2)O相当,但是含La_(2)O_(3)玻璃具有更低的介电损耗和电导率。含4%La_(2)O_(3)和4%Na_(2)O玻璃的介电常数分别为5.76和5.75,介电损耗分别为5.4×10^(-3)和13.7×10^(-3),电导率分别为2.39×10^(-8) S/m和7.5×10^(-8) S/m。By introducing La_(2)O_(3) and Na_(2)Ointo the glass fibers,the influence of La_(2)O_(3) on glass viscosity,23223 glass melting temperature,glass fiber drawing temperature,glass expansion coefficient,glass dielectric constant and dielectric loss was studied.The results show that the introduction of La_(2)O_(3) into the glass can 23 effectively reduce the glass melting temperature and glass fiber drawing temperature.Compared with the introduction of Na_(2)O,the glasses containing La_(2)O_(3) have the similar expansion coefficient and dielectric 223 constant with that of the glasses containing Na_(2)O,but the glass containing La_(2)O_(3) has lower dielectric loss 223 and electrical conductivity.The dielectric constants and of 4%La_(2)O_(3) and 4%Na_(2)Oglasses are 5.76 and 5.75 respectively,the dielectric losses of the two glasses are 5.4×10^(-3) and 13.7×10^(-3) respectively,and the-8-8 conductivity of the two glasses are 2.39×10^(-8) S/m and 7.5×10^(-8)S/m respectively.

关 键 词：氧化镧 氧化钠 玻璃纤维 熔制温度 介电常数 介电损耗 电导率 

分 类 号：TQ171.77[化学工程—玻璃工业]