玻纤增强PA66和PA6共混红磷阻燃材料熔点偏移研究  

Study on Melting Point Shift of Glass Fiber Reinforced PA66 and PA6 Blended Red Phosphorus Flame Retardant Material

作　　者：徐亮[1] 吴文安[2] 朱江 闵良 胡仁其[2] Xu Liang;Wu Wen-an;Zhu Jiang;Min Liang;Hu Ren-qi

机构地区：[1]南京聚隆科技股份有限公司,南京210032 [2]上海汽车集团股份有限公司乘用车公司,上海201804

出　　处：《化工设计通讯》2023年第3期53-55,68,共4页Chemical Engineering Design Communications

摘　　要：玻纤增强PA66和PA6共混红磷阻燃体系经过双螺杆挤出造粒得到的塑料粒子,在客户端注塑的制件进行差示扫描量热(DSC)测试出现了熔点偏移现象,分别是205℃和246℃。针对出现的问题进行了相关研究,结果表明:PA66与PA6共混其结晶状态互有影响,熔点会产生偏移甚至出现单一熔点;温度和停留时间对共混阻燃材料影响明显,会产生不同程度降解和结晶状态的改变,导致熔点偏移甚至出现单一熔点;高黏度的PA6以及合理的工艺参数对材料的熔点控制具有重要意义;采用此材料注塑的制件,不同结构和不同位置熔点有明显差异。Glass fiber reinforced PA66 and PA6 blended red phosphorus flame retardant system,in the twin screw extrusion granulation of plastic particles in the client injection parts for differential scanning calorimetry(DSC) test,melting point offset phenomenon,respectively is 205℃ and 246℃.The results show that the crystallization state of PA66 and PA6 blends has mutual influence,and the melting point will shift or even appear a single melting point.The influence of temperature and residence time on the blended flame retardant materials is obvious,resulting in different degrees of degradation and change of crystallization state,leading to melting point shift or even a single melting point.High viscosity PA6 and reasonable process parameters are of great significance to the melting point control of materials.This type of material injection parts,different structure and different position melting point has obvious differences.

关 键 词：玻纤增强 PA66和PA6共混 阻燃 结晶 熔点偏移 

分 类 号：TQ560.1[化学工程—炸药化工]