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    薛小芙, 李三喜. PVA／PVP共混体系的非等温结晶动力学[J]. 功能高分子学报, 1993, 6(2): 150-156.
    引用本文: 薛小芙, 李三喜. PVA／PVP共混体系的非等温结晶动力学[J]. 功能高分子学报, 1993, 6(2): 150-156.
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    Non-isothermal Crystallization Kinetics of Polyvinyl alcohol/Polyvinylpyrrolidone Blends[J]. Journal of Functional Polymers, 1993, 6(2): 150-156.
    Citation: Non-isothermal Crystallization Kinetics of Polyvinyl alcohol/Polyvinylpyrrolidone Blends[J]. Journal of Functional Polymers, 1993, 6(2): 150-156.
    shu

    PVA／PVP共混体系的非等温结晶动力学

    Non-isothermal Crystallization Kinetics of Polyvinyl alcohol/Polyvinylpyrrolidone Blends

      摘要
    • 摘要: 用Mandelkern和Ziabicki理论方法求得PVA及PVA/PVP共混物结晶动力学参数Z_C和动力学结晶能力G_C值,并进行了讨论。得到的Avrami指数n不随冷却速度变化,但随非晶组分PVP的加入有所减小,加入量达百分之四十以后n由3降到2;G_C值则随非晶组分的加入而增大,当PVP加入量大于百分之三十时,G_C值不再发生明显变化。同时实验表明该高聚物及其共混体系不适合于Ozawa非等温结晶动力学方程。

       

      Abstract: Based on the Mandelkern and Ziabicki theories, the kinetic crystallizability G_c and rate constant Z_c of PVA/PVP blends have been determined and discussed under non-isothermal condition by using differential scanning calorimetry. Avrami exponent n is alm

       

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