溶剂对PET纤维聚集态结构的影响 |
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引用本文: | 王海琳 傅树人. 溶剂对PET纤维聚集态结构的影响[J]. 合成纤维工业, 1992, 15(2): 33-37 |
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作者姓名: | 王海琳 傅树人 |
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摘 要: | 用密度法、DSC,偏光显微镜(PLM)和测定收缩率研究了1,2-二氯乙烷对不同纺速PET纤维聚集态结构的影响。结果表明,纺速不同,溶剂诱导结晶(SINC)及其动力学过程不同。高速纺纤维系取向晶态结构,对溶剂扩散有抑制作用。低、中速纺纤维基本为非晶态结构,SINC过程易于进行,但中速纺纤维取向非晶态含量高,溶胀度和收缩率较小。从而印证了关于不同纺速PET纤维结构特征的结论。
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关 键 词: | 1,2-二氯乙烷 PET纤维 溶剂诱导结晶 聚集态结构 |
EFFECTS OF SOLVENT ON AGGREGATION STRUCTURE OF PET FIBERS |
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Abstract: | The effects of solvent (1,2-dichloroethane) on aggregation structure of PETfibers at different winding speed were studied by using DSC, polarized lightmicroscope(PLM), and measuring density and shrinkage. The results show that thesolvent-induced crystallization(SINC) and its dynamics of PET fibers at differentwinding speed is different. The orientational crystalline structure of high-speedspun fiber inhibits solvent diffusion, but SINC process can perform easily for lowand medium-speed spun fibers with non-crystallinestructure fundamentally. Theorientational noncrystalline structure content of medium-speed spun fiber is higherthan that of low one, so that swelling and shrinkage capacity are smaller. |
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Keywords: | 1, 2-dichloroethane PET fiber spinning speed molecular crystalline structure |
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