纳米SiO2增强NR/HDPE共混型热塑性弹性体的研究

Study on Nano-silica Reinforced NR/HDPE Blended Thermoplastic Elastomer

摘要: 以动态硫化法制备纳米二氧化硅(SiO2)改性天然橡胶／高密度聚乙烯(NR／HDPE)共混型热塑性弹性体。研究了纳米SiO2对NR／HDPE弹性体力学、耐热变形、耐溶剂和热塑性能的影响，并用SEM分析了弹性体的断面形貌。结果表明：纳米SiO2通过细化交联NR分散相，改善了NR与HDPE的相容性，两相界面粘结强度明显提高。当纳米SiO2质量分数为0．03时，NR／HDPE弹性体的综合性能最好。

Abstract: Dynamic vulcanized nano-silica reinforced NR/ HDPE blended thermoplastic elastomer (NR/HDPE TPV) was prepared. The modifying effect of nano-silica ware investigated by analyzing the mechanical properties, resistance to thermal distortion, resistance to so