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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 behavior of bio-based nylon 56 was investigated using a differential scanning calorimeter and a polarizing microscope with a hot stage. The Avrami equation was used to analyze the isothermal crystallization process and its kinetics. The Avrami index (n value) was between 2.30 and 3.37, suggesting that the crystal growth mode was three-dimensional spherical growth. The Arrhenius equation was used to calculate the bio-based nylon 56 The isothermal crystallization activation energy (ΔE) was -99.04 kJ / mol. Polarimetric microscopy confirmed the above speculation, and found that the spherulite radius and crystallization time was linear, obtained spherulite growth rate.