氧化锆纤维增强PMMA-PMA基复合材料的制备

Preparation of Zirconia Fiber Reinforced PMMA-PMA Matrix Composites

以聚甲基丙烯酸甲酯(PMMA)和聚丙烯酸甲酯(PMA)为基体,钇稳定氧化锆纤维为增强相,采用悬浮聚合的方法,制备了氧化锆纤维增强PMMA-PMA基义齿基托复合材料。重点研究了氧化锆纤维质量分数对复合材料性能的影响。采用万能材料试验机、扫描电子显微镜、红外光谱和XRD分析测试手段分别对材料的抗折强度和断面的微观形貌等进行了测试和表征。结果表明:随ZrO2纤维含量增加,PMMA-PMA/ZrO2基复合材料的抗折强度和弯曲模量都呈现先增加后下降的变化规律。

Zirconia fiber reinforced PMMA-PMA matrix composites were prepared by a suspension polymerization process. The influence of fiber content on composites performance has been investigated. The mechanical properties and microstructure of the composites were characterized by universal testing machine, SEM, IR and XRD analyses. Results show that with the increase of ZrO2 fiber content, the flexural strength and bending modulus of PMMA-PMA/ZrO2（f） composites increase to maximum but then decreases.