摘要
通过转矩流变仪制备了聚苯乙烯/聚对苯二甲酸-乙二醇-1,4-环己烷二甲醇酯(PS/PETG)共混物和PS/改性PETG(PETG-M)共混物,采用旋转流变仪和熔体流动速率测定仪测定了PS、PETG和PETG-M的流变性能;采用扫描电子显微镜观测了共混物的相态结构。结果表明,随着PETG和PETG-M含量的提高,PS/PETG和PS/PETG-M共混物中PETG和PETG-M分散相颗粒平均粒径均增大,分散相颗粒密度均降低;在含量相同的情况下,PETG-M的分散相颗粒平均粒径小于PETG,PETG-M的分散相颗粒密度高于PETG,PETG-M的分散相粒径分布宽度更窄。
Polystyrene/poly （ethylene terephthalate-co-1, 4-cyclohexane dimethanol terephthalate） （PS/PETG） blends and PS/modified PETG blends were prepared by a torque rheometer. The rheological behavior of PS, PETG, and modified PETG at different temperature and shearing rate were tested using a rotational rheometer and melt flow rate tester; morphology structure of blends was investigated using scanning electron microscope. It was found that the average particle size of PETG in PS/PETG blends was increased, the particle density of PETG decreased with increasing PETG content, the average particle size decreased with increasing viscosity of PETG.
出处
《中国塑料》
CAS
CSCD
北大核心
2013年第11期59-65,共7页
China Plastics
