PMMA/纳米三氧化二镧复合材料的制备及性能  

Study on Preparation and Properties of PMMA/La_2O_3 Composites

作　　者：王君龙[1] 祝保林[1] Wang Junlong;Zhu Baolin(Materials Chemistry, College of Chemistry and Life science, Wei Nan Normal University, Weinan 714000, China)

机构地区：[1]渭南师范学院化学与生命科学学院,陕西渭南714000

出　　处：《工程塑料应用》2017年第9期18-22,27,共6页Engineering Plastics Application

基　　金：陕西省科技厅工业攻关课题(2013K09-31);陕西省教育厅专项基金项目(2015 JK1266);西部军民融合技术产业发展研究院项目(17 JMR22)

摘　　要：制备了聚2–甲基–2–丙烯酸甲酯(PMMA)/纳米三氧化二镧(La_2O_3)系列复合材料,对复合材料浇注体板材进行了力学性能、腐蚀性及吸湿率测试。结果表明,表面经PMMA接枝处理后的纳米La_2O_3质量分数为0.3%时,浇铸体复合材料板材的力学性能最佳,冲击强度比纯PMMA板材提高了154.7%,弯曲强度提高了52.0%;当纳米La_2O_3含量为0.5%时,浇铸体板材的耐酸、碱腐蚀性及吸湿性得到明显改善;在实验含量范围内,随着纳米La_2O_3含量的增加,浇铸体板材的邵氏硬度线性上升。得到了性能优异的复合材料浇铸体板材,并总结了浇铸体板材性能得以综合提升的原因。PMMA/nano-La2O3composite was prepared,and the mechanical properties,corrosion resistance,moistureabsorption and resistance test of the castable composite sheet were tested.The results show that when the content of nano-La2O3is0.3%,the mechanical properties were the best,the impact strength and bending strength is254.7%and152.0%higher than those ofpure plate respectively;and water absorption rate and acid and alkali corrosion rate are improved when adding0.5%content of nano-La2O3;Shore hardness increases linearly with the increase of nano-La2O3.Cast iron sheet with excellent properties is prepared,andthe reasons for the comprehensive improvement of composite cast slab are summarized.

关 键 词：纳米三氧化二镧 聚2–甲基–2–丙烯酸甲酯 复合材料 性能 改性 

分 类 号：TQ323.9[化学工程—合成树脂塑料工业]