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（ La2 O3／ 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La2 O3粒子的引入，在La2 O3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 La2 O3/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 La2 O3 particle content is 0.3% with the introduction of nanometer La2 O3 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.
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