Study on Preparation of Hard Elastic Polypropylene Fibers
Polypropylene pre-oriented multifilament were made by melt spinning with fast winding,and then hard elastic polypropylene fibers were made followed by annealing treatment under some conditions.The effects of the conditions of melt spinning and annealing process on the elasticity of polypropylene fibers were studied.The structure and property of hard elastic polypropylene fibers were analyzed by DSC,WAXD,SAXS and Sound velocity anisotropy.The results showed that the hard elasticity of annealed fibers increased with the improving of speed of winding,and the elasticity also increased with the improving of annealing temperature and extension of annealing time,and the elastic recovery rate of PP multifilament can be as high as 93.6%.The crystal phase of unannealed and annealed PP fibers did not change.Annealing leaded to form perfectly the characteristic crystalline structure of crystals of being perpendicular to fiber axis.
Hard elasticity Polypropylene fibers Annealing Elastic recovery rate Melt spinning
Sideng Zhang Xuzhen Zhang Bin Sun Long Chen Zhiyan Ma Meifang Zhu
State Key Lab for Modification of Chemical Fibers and Polymer Materials, College of Material Science and Engineering, Donghua University, Shanghai 201620, China
国际会议
the Chinese Materials Congress 2012(2012年中国材料大会(CMC2012))
太原
英文
414-419
2012-07-13（万方平台首次上网日期，不代表论文的发表时间）