聚酰胺酯结晶行为研究  

Research on crystallization behavior of polyamide ester

作　　者：李乃祥[1,2] 潘小虎[1,2] 庞道双[1] 樊云婷[1] 戴钧明[1,2] 

机构地区：[1]中国石化仪征化纤有限责任公司研究院,江苏仪征211900 [2]江苏省高性能纤维重点实验室,江苏仪征211900

出　　处：《合成技术及应用》2016年第1期14-18,共5页Synthetic Technology & Application

摘　　要：利用差式扫描量热法对聚酰胺酯进行结晶行为分析。结果表明:与常规PET相比,聚酰胺酯玻璃化温度、冷结晶温度、熔点、熔融结晶温度均较低,同时其熔融结晶速率也较慢;且随着共聚酯中聚酰胺成分的增加,玻璃化温度、熔点、熔融结晶温度逐渐降低并呈现一定的变化关系;在相同结晶温度下,聚酰胺成分增加,共聚酯半结晶周期t_(1/2)增加,结晶随之变慢。The crystallization behavior of polyamide ester with different composition was investigated by using differential scanning calorimetry（ DSC）. Results revealed that： the copolymers ＇ glass transition temperature（ Tg）,crystallization peaks（ Tc）,melting peaks（ Tm） and melting crystallization peaks（ Tmc） were all lower compared with normal PET,meanwhile the crystallization speed was slower too. Also,as the polyamide component of the copolymers increases,the Tg,Tm and Tmcare gradually decreased and showed a certain relationship between the change. Under the same crystallization condition,as the polyamide component increased,the half- time crystallization（ t_（1/2）） prolonged,indicating a slow crystallization speed.

关 键 词：聚酰胺酯 结晶行为 

分 类 号：TQ323.6[化学工程—合成树脂塑料工业]