纳米氧化镧/聚甲基丙烯酸丁酯复合材料的制备及性能  

La_2O_3/poly Butyl Methacrylate Preparation and Properties of Composites

作　　者：姚焕英[1] 王君龙[1] 

机构地区：[1]渭南师范学院化学与生命科学学院,陕西渭南714099

出　　处：《渭南师范学院学报》2015年第18期38-42,共5页Journal of Weinan Normal University

基　　金：渭南师范学院化学校级特色学科:秦东化工;材料技术调研(14TSXK04);西部军民融合技术产业发展研究院项目:稀土元素掺杂及表面有机化处理/氰酸酯树脂基复合材料的研究及应用(15JMR17);渭南师范学院教育科学研究项目:农村中学校本课资源开发与利用研究(2015JYKX020)

摘　　要：在实验基础上,对氰酸酯树脂进行增强、增韧改性.通过偶氮二异丁腈(AIBN)引发链式反应,通过本体聚合法,制备(La2O3/PBMA)系列的复合材料.分析总结复合材料板材的最佳制备工艺,讨论制备工艺对浇铸体板材性能的影响,表征稀土纳米粒子加入前后复合材料力学性能、邵氏硬度的变化.结果表明,随着纳米La2O3粒子的引入,在La2O3粒子量为0.3%时,冲击及弯曲强度都达到了最大值,与纯PBMA板相比,冲击、弯曲强度分别提高了217%和91.4%;邵氏硬度随无机纳米粒子的引入呈线性增加.Based on experiments, to enhance and modify the ester resin, the chain reaction is triggered by the reaction of azo- bisisobutyronitrile （AIBN）, and the La2O3/PBMA series of composite materials were synthesized by bulk polymerization with AIBN as initiator. The best preparation technology of composite material is summarized, and the effect of preparation process on the proper- ties of the cast is discussed. The experiment is summarized the impact of the preparation process of casting sheet activity and charac- terized the change of the mechanical properties of the composites and Shore hardness before and after the performance of rare earth nano particles added. The results showed that the impact and the flexural strength have reached the maximum when La2O3 particle content is 0.3% with the introduction of nanometer La2O3 particles. Comparing with the pure PBMA board, it increased by 217% and 91.4%. Shore hardness is increasing linearly with the introduction of inorganic nano-particles. Preliminary exploration of the re- search in this field is carried out.

关 键 词：甲基丙烯酸丁酯 氧化镧 弯曲强度 冲击强度 邵氏硬度 

分 类 号：O631[理学—高分子化学]