熔融纺丝法制备UHMWPE/MMT复合纤维的研究  

The Preparation of UHMWPE/MMT Composite Fiber by Melt Spinning Process

作　　者：甄万清[1] 王庆昭[1] 吴进喜[2] 王海敏[1] 

机构地区：[1]山东科技大学化学与环境工程学院,山东青岛266510 [2]新疆工业高等专科学校,新疆乌鲁木齐830091

出　　处：《合成纤维》2011年第3期5-9,共5页Synthetic Fiber in China

摘　　要：以超高相对分子质量聚乙烯/蒙脱土(UHMWPE/MMT)纳米复合材料为原料,采用熔融纺丝法,在自行设计制造的实验纺丝机上制备出纤维,利用DSC、XRD、SEM等手段对其结构进行了表征,并对其性能进行了测试。拉伸条件试验表明,水浴温度85℃、拉伸倍率14倍,是纤维最佳拉伸温度与倍率;纤维在拉伸过程中存在一个最佳的甬道停留时间。微观结构分析表明,拉伸后得到的纤维熔点、取向度都得到了提高,并在一定条件下出现了正交晶形到六方晶形的转变。The ultra high molecular weight polyethylene（UHMWPE）/montmorillonite（MMT） nanocompo-sites were used to produce composite nanofiber by self-made experimental melt spinning machine.Microstructure characteristics and mechanical properties of the composite nano fiber were studied by SEM observation,X-ray analyses,DSC analyses and tensile strength measurement.The results showed that the top-quality fiber could be produced under the following conditions： draw ratio 14,drawing temperature 85 ℃ in water.There was a best residence time when the fibers passed through spinning cabinet.Microstructure characteristics showed that the crystal structure of the fiber transformed from tetragonal phase to hexagonal phase during super drawing.The degree of orientation and melting temperature of the fiber were increased at the stage of drawing.

关 键 词：熔融纺丝法 超高相对分子质量聚乙烯纤维 拉伸 六方晶形 

分 类 号：TQ342.61[化学工程—化纤工业]