PA6/Zn(st)2复合材料的发泡行为与力学性能  

Foaming Behavior and Mechanical Properties of PA6/Zn(st)2 Composites

作　　者：顾军 蒋团辉[2] 曾祥补 龚维[3] 何力[2] Gu Jun;Jiang Tuanhui;Zeng Xiangbu;Gong Wei;He Li(The Institute of Chemistry and Chemical Industry of Guizhou University, Guiyang, Guizhou,550022;National Engineering Research Center for Compounding and Modification Polymeric Materials,Guiyang,Guizhou,550022;The Institute of Materials and Construction of Guizhou Normal University, Guiyang, Guizhou,550022)

机构地区：[1]贵州大学化学与化工学院,贵州贵阳550022 [2]国家复合改性聚合物材料工程技术研究中心,贵州贵阳550022 [3]贵州师范大学材料与工程学院,贵州贵阳550022

出　　处：《现代塑料加工应用》2020年第3期26-29,共4页Modern Plastics Processing and Applications

基　　金：贵州省自然科学基金资助项目(黔科合基础[2019]1176号);贵州省科研机构服务企业行动计划(黔科服企[2018]4010号);贵阳市白云区科技计划项目(白科合同[2018]8号,[2018]9号)。

摘　　要：通过熔融共混法制备聚酰胺6/硬脂酸锌[PA6/Zn(st)2]复合材料,并采用二次开模注射成型工艺制备PA6/Zn(st)2复合材料发泡样条。考察了Zn(st)2含量对PA6/Zn(st)2复合材料流变性能、结晶行为、发泡行为及力学性能的影响。结果表明:Zn(st)2的加入,提高了复合材料低频区的储能模量,降低了复合材料低频区的损耗因子;当Zn(st)2质量分数为3.0%时,储能模量达到最大值,损耗因子达到最小值。当Zn(st)2质量分数低于5.0%时,对PA6/Zn(st)2复合材料的力学性能影响不大。当Zn(st)2质量分数为0.5%时,复合材料的泡孔密度和泡孔直径都最佳。Polyamide 6/zinc stearate[PA6/Zn(st)2]composite was prepared by melt blending,and foaming spline of PA6/Zn(st)2 composite was prepared by the second injection molding process.The effects of Zn(st)2 content on rheological properties,crystallization behavior,foaming behavior and mechanical properties of PA6/Zn(st)2 composite were investigated.The results show that the addition of Zn(st)2 increases the energy storage modulus and reduces the loss factor in the low frequency region.When the mass fraction of Zn(st)2 is 3.0%,the energy storage modulus reaches the maximum value and the loss factor reaches the minimum value.When the mass fraction of Zn(st)2 is lower than 5.0%,the mechanical properties of PA6/Zn(st)2 composite are not affected much.When the mass fraction of Zn(st)2 is 0.5%,the pore density and pore diameter of the composite are both best.

关 键 词：聚酰胺6 硬脂酸锌 注射成型 发泡 

分 类 号：TQ3[化学工程]