纤维含量对长玻纤增强聚丙烯注塑制品性能影响  

Effects of Fiber Content on Properties of Long Glass Fiber Reinforced PP Injection Molded Parts

作　　者：陈生超 杨永良[1] 陈金涛[1] 宋刚 徐建伟[1] 李海梅[1,2,3,4] 

机构地区：[1]郑州大学材料科学与工程学院,郑州450001 [2]工业装备结构分析国家重点实验室,辽宁大连116024 [3]高分子材料国家工程重点实验室,成都610065 [4]聚合物成型加工工程教育部重点实验室,广州510640

出　　处：《工程塑料应用》2013年第12期44-48,共5页Engineering Plastics Application

基　　金：国家自然科学基金项目(10972201;11272291);国家重点基础研究发展计划项目(2012CB025903);高分子材料国家工程重点实验室(四川大学)项目(KF201206);工业装备结构分析国家重点实验室(大连理工大学)项目(GZ1203);聚合物成型加工工程教育部重点实验室(华南理工大学)项目(2012004)

摘　　要：制备了不同纤维含量长玻纤增强聚丙烯注塑试样,测量了试样不同位置处的玻纤长度,通过金相显微镜观测了长玻纤的分布,研究了玻纤含量对复合材料力学性能的影响,同时对长玻纤注射成型的制品进行数值模拟。微观试验观测发现,纤维含量的增加使得长纤维的断裂加剧,同时增加了纤维在制品内的团聚。宏观性能测试发现,高纤维含量增加了复合材料的力学性能,试验范围内试样的冲击强度最多增加了6倍。最后,比较了模拟结果与试验结果的变化趋势。Long glass fiber reinforced polypropylene（LGFR-PP） injection molded parts were made by different fiber contents.The fiber average length of selected locations of different fiber content injection molded part was measurement by self made platform and the dispersity of long glass fiber was observed by metallographic microscope.The effects of fiber content on the mechanical properties of the composites were studied.The numerical simulation for LGFR-PP injection molding process was done by simulationg software.The micro-morphology results show that higher fiber content increases breakage and the probability of the fiber aggregation in the products.Macro-properties show that higher fiber content increases the mechanical properties of composites with maximum impact strength increasing seven times.The change trend of simulation was compared with that of experiment.

关 键 词：长玻纤增强聚丙烯 纤维含量 纤维长度与分散 力学性能 数值模拟 

分 类 号：TQ327.11[化学工程—合成树脂塑料工业]