螺杆转速对PA6/LiCl复合材料性能的影响  

Effect of Screw Speed on Properties of PA6/LiCl Composites

作　　者：张敏[1,2] 许恩惠[1,2] 李诚[1,2] 王彩红[1,2] 鲁圣军[1,2] 

机构地区：[1]贵州大学材料与冶金学院,贵州贵阳550025 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550014

出　　处：《塑料科技》2013年第11期60-64,共5页Plastics Science and Technology

基　　金：贵州省自然科学基金项目([2012]2123号);贵阳市工业振兴科技计划项目([2012101]2-11)

摘　　要：通过FTIR、DSC、XRD研究了挤出机螺杆转速对聚酰胺6/氯化锂(PA6/LiCl)复合材料结晶和力学性能的影响。结果表明:随着螺杆转速的提高,LiCl和PA6络合反应程度增大,PA6/LiCl复合材料的结晶不完善程度增加,结晶度减小;当螺杆转速为240 r/min时,复合材料的拉伸强度和弯曲强度均达到最大值,分别为51.72和133.9 MPa;当螺杆转速为220 r/min时,复合材料的缺口冲击强度达到最大值7.9 kJ/m2。The effect of shear intensity on crystallization and mechanical properties of PA6/LiCI composites was researched by FTIR, DSC and XRD. The results show that with the increase of shear intensity, the degree of complexation reactions between PA6 and LiCI increases, the crystallinity of PA6/LiCI composites becomes imperfect, and the degree of crystallinity of PA6 decreases. The tensile strength and bending strength of PA6/LiCI composites can be maximum when the shear rate is 240 r/min, which respectively are 51.72 MPa and 133.9 MPa; and then the notched impact strength of the composites can be maximum when the screw speed is 220 r/min, which is 7.9 k Jim2.

关 键 词：聚酰胺6 氯化锂 螺杆转速 力学性能 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]