论文部分内容阅读
用双螺杆挤出机制备了废聚丙烯/废轮胎胶粉/废尼龙短纤维(WPP/GRT/WSF)复合材料,通过正交实验得出了制备该复合材料的最佳配方,讨论了增容剂用量、氯化聚丙烯的含氯质量分数、GRT用量及其粒径、WSF用量及预处理对该复合材料力学性能的影响。结果表明,制备该复合材料的最佳配方(质量份,下同)是WPP100,GRT30,WSF8,二甲基二硫代氨基甲酸锌、二硫化二苯并噻唑、多乙烯多胺及重油用量依次为0.6,1.2,0.3,2,聚丙烯接枝马来酸酐、氯化聚丙烯用量依次为8,4;在最佳配方下,该复合材料的非缺口冲击强度为25.2kJ/m2,拉伸强度为13.6MPa;GRT用量为30份时,该复合材料的拉伸强度和非缺口冲击强度最大,GRT的最佳粒径为40目;WSF经D法预处理后,提高了该复合材料的力学性能,拉伸强度为16.3MPa,非缺口冲击强度为27.8kJ/m2。
The best formula of WPP / waste nylon staple fiber (WPP / GRT / WSF) composites was prepared by twin-screw extruder. The optimum formulation of the composites was obtained by orthogonal experiments. The content of solvent, chlorinated polypropylene content of chlorine, GRT content and particle size, WSF dosage and pretreatment on the mechanical properties of the composite. The results showed that the best formulation (mass parts, the same below) of the composite material is WPP100, GRT30, WSF8, zinc dimethyldithiocarbamate, dibenzothiazyl disulfide, polyethylene polyamine and heavy oil 0.6, 1.2, 0.3, 2, polypropylene grafted maleic anhydride, chlorinated polypropylene dosage followed by 8,4; in the best formula, the composite notched Izod impact strength of 25.2kJ / m2, stretching The tensile strength and non-notched impact strength of the composites were the highest, the optimum particle size of GRT was 40 meshes. When the amount of GRT was 30, the optimum particle size of GRT was 40 meshes. Mechanical properties, tensile strength of 16.3MPa, non notched impact strength of 27.8kJ / m2.