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瓶级PET固相缩聚反应动力学的研究
Reaction kinetics of solid-state polycondensation for bottle grade PET
【摘要】 对含间苯二甲酸 (IPA)共聚酯固相缩聚进行了研究 ,建立了球形颗粒中可逆化学反应和小分子三维扩散共同控制的模型 ,得到了在氮气保护下 ,2 0 0~ 2 2 0℃条件下PET固相缩聚的反应动力学参数
【Abstract】 The solid state polycondensation of copolyester containing isophthalic acid is studied.A model which is controlled by reversible reaction and small molecular three dimensional diffusion within spherical pellet is established,the reaction kinetics parameters of solid state polycondensation under nitrogen protection at 200~220 ℃ are available.
【关键词】 瓶级PET;
固相缩聚;
反应动力学;
模型;
【Key words】 bottle grade PET; solid state polycondensation; reaction kinetics; model;
【Key words】 bottle grade PET; solid state polycondensation; reaction kinetics; model;
- 【文献出处】 聚酯工业 ,Polyester Industry , 编辑部邮箱 ,2001年06期
- 【分类号】TQ323.4
- 【被引频次】11
- 【下载频次】141