Ozawa方程处理PET非等温结晶动力学过程研究  

Study on PET non-isothermal crystallization kinetics by Ozawa equation

作　　者：董知之[1] 张志英[1] 王学哲[1] 宋娜[1] 宋正红[1] 

机构地区：[1]天津工业大学改性与功能纤维天津市重点实验室,天津300160

出　　处：《合成纤维工业》2005年第6期12-14,共3页China Synthetic Fiber Industry

基　　金：天津市高等学校科技发展基金(20050511)

摘　　要：采用Monte Carlo法计算机模拟在预先成核条件和不同降温速率下PET非等温结晶曲线，将模拟的结果用Ozawa方程及改进的Ozawa方程进行处理。结果表明，用Ozawa方程解析的Avrami指数与理论值相近，用改进的Ozawa方程可直接得到结晶速率常数，求出的线生长速率与理论值基本吻合。The non-isothermal crystallization of PET was simulated under prenucleation conditions and various cooling rates by Monte Carlo method. The simulated data were processed with the original and advanced Ozawa equations. The results showed that the Avrami index obtained from Ozawa equation was close to the theoretical value, the crystallization rate constant can be obtained directly from the advanced Ozawa equation, and the calculated linear growth rate almost coincided with the theoretical value.

关 键 词：聚对苯二甲酸乙二醇酯 非等温结晶 Ozawa方程 Avrami指数 结晶速率常数 线生长速率 

分 类 号：O781[理学—晶体学]