摘要
制备胶粉/高密度聚乙烯(HDPE)热塑性弹性体(TPE),并研究其性能。结果表明,混炼温度从150℃提高到200℃时,胶粉/HDPE TPE的强伸性能降幅较大,但流变性能较好,且挤出物表观质量较好,混炼温度以150℃为宜;胶粉改性时过辊次数增加可使其粒径进一步减小,从而提高改性胶粉/HDPE TPE的物理性能,但过辊次数增至一定程度时会使胶粉分子链降解,致使改性胶粉/HDPE TPE的物理性能降低;胶粉/HDPE TPE的返炼性能良好。
A crumb rubber/HDPE thermoplastic elastomer（TPE） was prepared and its properties were investigated. The results showed that the tensile strength of crumb rubber/HDPE TPE decreased significantly, but its rheological property and appearance quality of its extrudate improved by increasing the mixing temperature from 150℃ to 200℃,and the most suitable mixing temperature was 150℃ ;the increase of mill runs during modification of crumb rubber would make the particle size of crumb rubber finer resulting in the improved physical properties of modified crumb rubber/HDPE TPE,but as the mill runs increased over a certain level, the molecular chains of crumb rubber would break down resulting in poorer physical properties of modified crumb rubber/HDPE TPE; and the modified crumb rubber/HDPE TPE had good remillability.
出处
《橡胶工业》
CAS
北大核心
2007年第3期137-140,共4页
China Rubber Industry
基金
国家自然科学基金资助项目(59903001)
