表面粗糙化聚甲醛/聚丙烯共混纤维的制备与性能  

Preparation and Properties of Polyformaldehyde/Polypropylene Blend Fibers with Rough Surface

作　　者：杨汪洋 杨新华 刘园园 陈龙[1] 孙俊芬[1] Wangyang Yang;Xinhua Yang;Yuanyuan Liu;Long Chen;Junfen Sun(State Key Laboratory for Modification of Chemical Fibers and Polymer Materials,College of Materials Science and Engineering,Donghua University,Shanghai 201620,China;Zhejiang Hengyi Petrochemical Research Institute Co.,Ltd.,Jiaxing 311200,China)

机构地区：[1]东华大学材料科学与工程学院纤维材料改性国家重点实验室,上海201620 [2]浙江恒逸石化研究院有限公司,浙江嘉兴311200

出　　处：《高分子材料科学与工程》2025年第1期53-60,共8页Polymer Materials Science & Engineering

摘　　要：文中采用熔融共混法制备了不同聚甲醛(POM)含量(5%,10%和15%)的聚甲醛/聚丙烯(PP)共混物,并使用“熔纺-拉伸”两步法制备了POM/PP共混纤维,使用旋转流变仪、扫描电镜、纤维拉力仪等分析手段研究了POM含量对POM/PP共混物流变性能以及对共混纤维表面形貌、力学性能及基体结合性能的影响。结果表明,POM的加入改善了共混物的熔体加工性能与热稳定性以及纤维的表面粗糙度、抗蠕变性能与基体结合性能。当POM质量分数为10%时,纤维的断裂强度达到3.32 cN/dtex,在环氧树脂中的基体结合强度为68.9 kPa,是性能良好的增强材料。The polyformaldehyde(POM)/polypropylene(PP)blends with different POM contents(5%,10%and 15%)were prepared by melt blending method,and the POM/PP blend fibers were prepared by a two-step process of"melt spinning and stretching".The effects of POM content on the physical properties of POM/PP blends and the surface morphology,mechanical properties and matrix bonding properties of the blend fibers were studied by rotational rheometer,scanning electron microscope and fiber tensile force meter.The results show that the addition of POM improves the melt processability and thermal stability of the blends,as well as the surface roughness,creep resistance and matrix bonding of the fibers.When the POM mass fraction is 10%,the fracture strength of the fiber reaches 3.32 cN/dtex,and the matrix bonding strength in epoxy resin is 68.9 kPa,making it a high-performance reinforcing material.

关 键 词：聚丙烯纤维 聚甲醛 纤维增强复合材料 流变性能 基体结合性能 

分 类 号：TQ342[化学工程—化纤工业]