钱军,邢喜全,王方河,李军,阮佳伦
QIAN Jun,XING Xi-quan,WANG Fang-he,LI Jun,RUAN Jia-lun

• 1:宁波大发化纤有限公司

摘要(Abstract)：

以再生聚酯瓶片料和泡料混合料为原料进行并列复合纺丝,并经后纺工艺处理得到并列复合再生聚酯短纤维。通过对纤维进行干热定形,研究热定形温度、时间对并列复合再生聚酯短纤的强伸性能、卷曲性能和热收缩性能的影响。结果表明:聚酯短纤维的断裂强度和断裂伸长率随着热定形温度升高而增大;断裂强度随热定形时间的延长逐渐下降,断裂伸长率先增大后减小,在20 min时达到最大值,为17.4%,声速取向因子则随着热定形时间的延长呈现下降趋势。纤维的卷曲性能随着热定形温度的升高而改善,较短的时间内,纤维的卷曲性能已经达到最佳;热定形温度的升高使纤维的热收缩率增大;并列复合再生聚酯短纤维的最佳热定形温度是140～160℃,最佳定形时间为10 min。
Side-by-side composite spinning with recycled polyester bottle flakes and foam mixture as raw materials, and processed by post-spinning process to obtain side-by-side composite recycled polyester staple fiber. Through the dry heat setting of the fibers, the effects of heat setting temperature and time on the crimping properties and tensile properties of the side-by-side composite recycled polyester staple fibers were investigated. The results show that the breaking strength and the elongation at break of fiber increase with the increase of temperature, the breaking strength decreases with the extension of heat setting time, the elongation at break increases first and then decreases, and reaches the maximum at about 20 minutes, which is about 17.4%, the sound velocity orientation factor also shows a downward trend. The crimping performance of the fiber is improved with the increase of the heat setting temperature. The curling performance of the fiber has been optimized during the short heat setting time, the increase of the heat setting temperature increases the heat shrinkage rate of the staple fiber. The optimum heat setting temperature of the side-by-side composite recycled polyesterstaple fiberis 140～160 ℃,and the optimalsetting time is 10 minutes.

关键词(KeyWords)： 并列复合再生聚酯短纤维;热定形;卷曲性能;强伸性;声速取向因子
side-by-side composite recycled polyester staple fiber;heat setting;curl performance;strength and elongation;sound velocity orientation factor

Abstract:

Keywords:

基金项目(Foundation):

作者(Author): 钱军,邢喜全,王方河,李军,阮佳伦
QIAN Jun,XING Xi-quan,WANG Fang-he,LI Jun,RUAN Jia-lun

DOI: 10.16090/j.cnki.hcxw.2019.09.007

参考文献(References)：

• [1]张师民.聚酯的生产及应用[M].北京:中国石化出版社, 1997:295-296.
• [2]段建国.再生聚酯纤维技术发展现状及前景[J].纺织导报, 2012(8):71-73.
• [3]柴国梁.探讨废塑料的市场现状与发展趋势(上)[J].上海化工,2008, 33(1):39-41.
• [4]张程,周静宜,王锐,等. COPEET/HSPET并列复合纤维结晶和热收缩性能的研究[J].合成纤维工业, 2015, 38(1):24-28.
• [5]沈新元.高分子材料加工原理[M].中国纺织出版社, 2009:224-236.
• [6]李夏,王朝生,王华平,等.热处理对并列复合双组分聚酯长丝性能的影响[J].合成纤维, 2013, 42(10):9-13.
• [7]肖红,施楣梧,刘晶.张力对PET-PTT长丝结构和性能的影响[J].纺织学报, 2008, 29(7):1-5.
• [8]肖红,施楣梧,刘晶.不同温度下PET-PTT长丝结构和性能的影响[J].纺织学报, 2008, 29(8):6-10.
• [9]肖红,刘晶,施楣梧.处理时间和介质对PET-PTT长丝结性能的影响[J].纺织学报, 2008, 29(8):17-19.
• [10]刘晶,王府梅,肖红,等.热处理条件对PET/PTT双组分复合长丝力学性能的影响[J].合成纤维, 2008, 37(2):22-26.
• [11]李夏.并列复合聚酯弹性纤维的制备及结构性能研究[D].上海:东华大学, 2014.
• [12]马艳丽.聚丁二酸丁二醇—共—对苯二甲酸丁二醇共聚酯(PBST)纤维的热定型研究[D].上海:东华大学, 2010.