文献类型：期刊文献

中文题名：改性Ca_(0.7)La_(0.2)TiO_(3)陶瓷增强乙烯基含硅芳炔树脂复合材料的界面与性能

英文题名：Properties and the Interface of Modified Ca_(0.7)La_(0.2)TiO_(3) Ceramics Reinforced Vinyl Silicon-containing Aryne Resin Composites

作者：缪金波[1];彭海益[2];黄燕春[1];姚晓刚[2];邓诗峰[1]

机构：[1]华东理工大学材料科学与工程学院,特种功能高分子材料及相关技术教育部重点实验室,上海200237;[2]中国科学院上海硅酸盐研究所信息功能材料与器件研究中心,上海200050

年份：2022

卷号：52

期号：3

起止页码：30

中文期刊名：宇航材料工艺

外文期刊名：Aerospace Materials & Technology

收录：CSTPCD;;北大核心:【北大核心2020】；CSCD:【CSCD2021_2022】；

基金：装备发展部重点基金(61409220301);中央高校基本科研业务费专项资金资助(50321042017001)。

语种：中文

中文关键词：氢键;物理吸附;微波介质复合材料;力学性能;介电性能

外文关键词：Hydrogen bonding;Physical adsorption;Microwave Dielectric composites;Mechanical properties;Dielectric properties

摘要：采用30%H_(2)O_(2)和乙烯基三甲氧基硅烷(VTMS)对Ca_(0.7)La_(0.2)TiO_(3)(CLT)进行了羟基化(CLT-OH)和硅烷化(CLT-VT)改性,分别在陶瓷表面获得了亲水和疏水层,两者分别与树脂间形成氢键作用和物理吸附。采用熔融浇铸法,将改性后的陶瓷和乙烯基含硅芳炔树脂树脂(PSAE)制备成具有系列化介电常数微波介质复合材料,研究了不同陶瓷/树脂界面作用力对复合材料性能的影响。结果表明,40vol%CLT-VT/PSAE获得了10 GHz下最优的介电性能,介电常数13.8,介电损耗3.16×10^(-3);40vol%CLT-OH/PSAE获得了最优的综合性能,弯曲强度达50 MPa,介电常数14.77,介电损耗3.29×10^(-3)。
Ca_(0.7)La_(0.2)TiO_(3)(CLT) was respectively hydroxylated(CLT-OH)by 30% H_(2)O_(2) and modified(CLT-VT)by Trimethoxy(vinyl)silane(VTMS).The hydrophilic and hydrophobic layers are respectively obtained on the ceramic surface,and they form hydrogen bonding and physical adsorption with the resin.By melt casting method,the modified ceramics and vinyl silicon-containing aryne resins(PSAE)were prepared into a series of microwave dielectric composite materials with different dielectric constants.The effect of different ceramic/resin interface forces on the properties of composite materials was studied.It was found that 40 vol%CLT-VT/PSAE achieved the best dielectric performance at 10 GHz,with a dielectric constant of 13.8 and a dielectric loss of 3.16×10^(-3) and 40 vol%CLT-OH/PSAE has obtained the best overall performance,with a bending strength of 50 MPa,a dielectric constant of 14.77,and a dielectric loss of 3.29×10^(-3).