摘要
采用光学解偏振法和DSC技术研究了易水解聚酯(EHDPET)的结晶性能,讨论了EHDPET的等温结晶动力学性质及第三、四单体含量对其影响和EHDPET的变温结晶动力学性质,并求出了其结晶活化能。实验结果表明:增大SIPE含量或降低脂肪族化合物A的含量均会使EHDPET的结晶速率下降,并且会使结晶速率对温度的变化越发不敏感;SIPE系列EHDPET随结晶温度的下降,结晶熔点降低;A系列EHDPET则随结晶温度的下降,结晶熔点变化不明显。
The crystallization properties of easy hydrolysis degradable polyester (EHDPET) were studied by means of polarimetry and DSC techniques. The influence of the content of SIPE and aliphatic compound A on the isothermal crystallization kinetics and the crystalline thermodynamic of EHDPET were investigated, the crystallization activation energy of EHDPET was also calculated. The results showed that with the increase in the content of SIPE or decrease in the content of A, the crystallization rate became slow and less sensitive to temperature. The series of SIPE and series of A showed different charaectr in the relationship between crystallization temperature and melt point.
出处
《北京服装学院学报（自然科学版）》
CAS
2003年第1期1-5,共5页
Journal of Beijing Institute of Fashion Technology：Natural Science Edition
基金
国家自然科学基金(59973002)
