【作者】 李凯夫； 谢雪甜；

【Author】 Li Kaifu, Xie xuetian (College of South China Agricultural University, Guangzhou 510642)

【机构】 华南农业大学林学院；

【摘要】 本文研究了在人工加速老化中,温湿度对稻糠/高密度聚乙烯复合材料外观和力学性能的影响。研究表明:温湿度交变使稻糠/高密度聚乙烯复合材料的小分子添加剂随着水份在材料结构中流动上浮到材料表面,形成雾层,颜色差异也不断增大;拉伸强度呈下降趋势,而拉伸断裂伸长率以及冲击韧性则呈先增大后减小的变化趋势,弯曲性能对温湿度交变的环境不敏感。更多还原

【Abstract】 The humiture affect to appearance and mechanic properties of rice chaff/HDPE composite was studied. It was indicated that: small molecule additive was moved to the surface of material following the water by the changing humiture, fog layer was formed, and the difference of color became larger; Tensile strength decreased, while the tensile break extension percentage increased first and then decreased, flexural properties was not sensible to the changing humiture.更多还原