螺杆组合及工艺条件对玻纤增强回收PP性能的影响  

Effects of screw combination and process conditions on properties of glass fiber reinforced recycled PP

作　　者：李诚 李建军 汪海 罗鹏 徐冲 胡志华 杨霄云 刘思扬 LI Cheng;LI Jianjun;WANG Hai;LUO Peng;XU Chong;HU Zhihua;YANG Xiaoyun;LIU Siyang(Kingfa Science&Technology Co.,Ltd.,Guangzhou 510663,China;Guangdong Kingfa Science and Technology Co.,Ltd.,Qingyuan 511515,China)

机构地区：[1]金发科技股份有限公司,广东广州510663 [2]广东金发科技有限公司,广东清远511515

出　　处：《再生资源与循环经济》2022年第1期44-46,共3页Recyclable Resources and Circular Economy

摘　　要：采用熔融挤出的方法制备了玻璃纤维增强废旧聚丙烯(RPP)复合材料(GF/RPP),研究了不同挤出温度、螺杆转速、螺杆组合等工艺参数对玻纤增强再生聚丙烯材料性能的影响。结果表明:随着加工温度的上升,材料的拉伸强度和弯曲强度都是先增大后减小,随着螺杆转速的增加,玻纤的保留长度逐渐降低,材料的拉伸强度先增大后减小,在转速超过400 r/min后,材料的强度开始下降。螺杆组合对比发现,增强螺杆剪切有利于玻纤分散,对材料的性能有提升。Glass fiber reinforced waste polypropylene(RPP) composites(GF/RPP) were prepared by melt extrusion.The influences of the extrusion temperature, screw speed, screw configuration on mechanical properties of glass fiber reinforced waste polypropylene. The results show that: with the increase of extrusion temperature the tensile strength and bending strength of GF/RPP increases and then decreases. With the increasing of screw speed the retention length of glass fiber decreased gradually, the tensile strength of GF/RPP increases,when the screw speed over 400 r/min the tensile strength decreases. Compared with the screw combination, it was found that the reinforcement of screw shear is beneficial to the dispersion of glass fiber and the performance of the material is improved.

关 键 词：再生聚丙烯 玻纤增强 工艺参数 力学性能 

分 类 号：X783[环境科学与工程—环境工程]