合成纤维

2017, v.46;No.336(02) 1-5+26

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生物基尼龙56的等温结晶性能研究
Study on Isothermal Crystallization Kinetics of Bio-Based Nylon 56

吴田田;王学利;俞建勇;高宇;刘修才;李乃强;
WU Tian-tian;WANG Xue-li;YU Jian-yong;GAO Yu;LIU Xiu-cai;LI Nai-qiang;College of Textiles, Donghua University;Research Institute of Donghua University;Shanghai Cathay Biotechnology R&D Center Co.Ltd.;

摘要(Abstract):

采用差示扫描量热仪和带有热台的偏光显微镜对生物基尼龙56的等温结晶性能进行了研究。用Avrami方程对等温结晶过程及其动力学进行了分析,得出Avrami指数(n值)在2.30~3.37之间,推测其晶体生长方式为三维球状生长;采用Arrhenius方程计算了生物基尼龙56的等温结晶活化能(ΔE)为-99.04 kJ/mol。偏光显微镜研究证实了上述推测,同时发现球晶半径与结晶时间呈线性关系,求得了球晶的生长速率。
The isothermal crystallization process and kinetics of bio-based Nylon56 were studied by differential scanning calorimeter and hot- stagepolarized optical microscope under different temperatures. The value of the Avrami exponent ranging from 2.30 to 3.37 was determined, which indicated that the isothermal crystallization was probably three-dimensional growth. The activation energy for isothermal crystallization of bio-based nylon 56 was calculated to be-99.04 k J/mol by the Kissinger method. Three-dimensional spherical growth in the isothermal crystallization process was confirmed by polarized optical microscopy. A linear relationship between the spherulite radius and crystallization time was found and the growing rates of spherulite under different temperatures were obtained.

关键词(KeyWords): 生物基尼龙56;等温结晶;结晶动力学
bio-based nylon 56;isothermal crystallization;crystallization kinetics

Abstract:

Keywords:

基金项目(Foundation): “纺织之光”应用基础研究项目资助(J201402);; 上海凯赛生物技术研发中心有限公司资助(HX201405000028)

作者(Author): 吴田田;王学利;俞建勇;高宇;刘修才;李乃强;
WU Tian-tian;WANG Xue-li;YU Jian-yong;GAO Yu;LIU Xiu-cai;LI Nai-qiang;College of Textiles, Donghua University;Research Institute of Donghua University;Shanghai Cathay Biotechnology R&D Center Co.Ltd.;

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DOI: 10.16090/j.cnki.hcxw.2017.02.001

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