高模低缩涤纶工业丝的结构与性能比较  

Structure-property comparison of High Modulus and Low Shrinkage Polyester Industrial Yarns

作　　者：刘亚涛[1] 赵慧荣[2] 宋光坤 汤方明[2] 尹立新[2] 邵惠丽[1] 张耀鹏[1] 

机构地区：[1]东华大学纤维材料改性国家重点实验室材料科学与工程学院,上海201620 [2]江苏恒力化纤股份有限公司,苏州215228

出　　处：《上海塑料》2015年第1期31-35,共5页Shanghai Plastics

基　　金：中国博士后科学基金(2014M551293)

摘　　要：高模低缩(HMLS)涤纶工业丝具有弹性模量高、干热收缩小、尺寸稳定性好等优点,是子午线轮胎的重要骨架材料。本文利用同步辐射广角X射线衍射和小角X射线散射技术研究了5种HMLS涤纶工业丝的晶区结构、非晶区取向和片层散射体结构的主要差异。相比于D和E公司的产品,A,B,C公司产品的结晶度较高、晶粒体积较大,长周期较大,片层倾斜角度较小。高结晶度、高非晶区取向和较小的片层倾斜角度使HMLS涤纶工业丝表现出较高的断裂强度和较好的尺寸稳定性。High modulus and low shrinkage （HMLS） polyester industrial yarns are important reinforcement materials in radial tires due to its high modulus, low shrinkage and good dimensional stability. Synchrotron radiation wide-angle X-ray diffraction （SR- WAXD） and small-angle X-ray scattering （SR-SAXS） were performed to study the crystalline structures, amorphous orientation and lamellar structures. It was found that the yams produced by A, B and C have higher crystallinity, larger crystal size, larger long period and smaller lamellar tilting angle than the yarns produced by D and E. The unique structures of high crystallinity, high amorphous orientation and small lamellar tilting angle make HMLS yarns the combination of high breaking strength and good dimensional stability.

关 键 词：高模低缩涤纶工业丝 X射线 结构 性能 

分 类 号：TQ342.2[化学工程—化纤工业]