废橡胶粉/沥青复配改性聚丙烯的研究
China Plastics Industry(2012)
Abstract
以废橡胶粉复配沥青作为聚丙烯的低成本增韧改性剂,制得了冲击强度和断裂伸长率均显著提高,同时具有良好拉伸强度的共混复合材料。偏光显微镜观察表明:沥青的加入可显著改善废橡胶粉在聚丙烯基体中的分散,分散相尺寸由>50μm降低到2~5μm。DSC分析证实了复配改性剂的加入抑制了聚丙烯的结晶能力,其结晶度和熔点均显著降低。
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Key words
Toughing Modification,Polypropylene,Asphalt,Ground Rubber Powder
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