【摘要】 研究了有机纳米丁苯吡粉末橡胶、无机纳米粒子添加到聚对苯二甲酸乙二酯（PET）后对PET结晶行为的影响。并探讨了不同降温速率下3种体系降温过程中的结晶行为及基于Jeziorny理论和莫氏理论的结晶动力学。研究表明,3种纳米粒子对PET结晶动力学的影响是不同的,纳米粉末橡胶在较低结晶度时符合Jeziorny理论,而无机纳米粒子则对莫氏理论有较好的相关性。由莫氏理论计算出的参数表明,达到同样结晶度时有机化黏土促进PET结晶的效果比纳米CaCO₃好。更多还原

【Abstract】 The authors investigated the effects of nano-powders of butadiene-styrene-vinyl pyridine（BSV） rubber, nano-CaCO₃ and nano-organoclay on the crystallization of poly（ethylene terephthalate）（PET）,and studied crystallization of the three systems at different cooling rates and crystallization kinetics based on Jeziorny’s and Mo’s theories.Experiments demonstrate that the three types of nano-powders have different influences on non-isothermal crystallization kinetics of PET.Nano-powders of BSV function according to Jeziorny’s at low temperature,while inorganic nano-powders have good correlation with Mo’s theory.Data calculated with Mo’s theory indicate that lower cooling rate needed in PET/nano-organoclay than in PET/nano-CaCO₃ to attain the same crystallinity.更多还原