MC尼龙/Dy2O3纳米复合材料的制备及性能研究

• 作 者: 陈绮虹
• 机 构: 湛江师范学院基础教育学院,
• 出 处: 化工新型材料
• 发表日期: 2010年06期
• 关键词: MC尼龙 纳米Dy2O3 复合材料 原位聚合 力学性能

用原位分散聚合法制备了MC尼龙/Dy2O3纳米复合材料,采用SEM、XRD、力学性能测试等对复合材料进行了分析。研究表明,加入少量纳米Dy2O3可明显改善MC尼龙的力学性能和耐磨性,起到同时增强、增韧和耐磨的作用,当纳米Dy2O3的用量为0.5%时,复合材料的拉伸强度和断裂伸长率达到最大值,分别比MC基体提高15.9%和49.3%,当纳米Dy2O3的用量为1.0%时,复合材料的缺口冲击强度达到最大值,比MC尼龙提高26.8%,磨耗体积达到最小值,比MC尼龙降低84.6%。

The MC nylon / Dy2O3 nanocomposites were prepared by in-situ dispersion polymerization. The composites were analyzed by SEM, XRD and mechanical properties tests. The results show that the addition of a small amount of nano-Dy2O3 can obviously improve the mechanical properties and wear resistance of MC nylon, and at the same time enhance, toughen and wear-resistant effect. When the dosage of nano-Dy2O3 is 0.5%, the tensile strength and The maximum elongation at break was 15.9% and 49.3% higher than that of MC matrix, respectively. When the content of nano-Dy2O3 was 1.0%, the notched impact strength of composite reached the maximum, which was 26.8% higher than MC nylon and the wear volume reached the minimum Value, lower than MC nylon 84.6%.