【摘要】 文 摘 采用 30% H₂O₂和乙烯基三甲氧基硅烷（VTMS）对 Ca_{0. 7}La_{0. 2}TiO₃（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。更多还原

【Abstract】 Ca_0.7La_0.2TiO₃（CLT） was respectively hydroxylated（CLT—OH）by 30% H₂O₂ 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^-3and 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.更多还原