高速扫描量热法对聚丙烯受限结晶的研究  

The Fast Scanning Calorimetry Research on the Fractionated Crystallization of Polypropylene

作　　者：李红梅[1] 杨榕[1] 姜菁 黄以能[1] 周东山 LI Hong-mei;YANG Ron;JIANG Jing;HUANG Yi-neng;ZHOU Dong-shan(Xinjiang Laboratory of Phase Transitions and Microstructures in Condensed Matter Physics,College of Physical Science and Technology,Yili Normal University,Yining,Xinjiang 835000,China;China School of Chemistry and Chemical Engineering,The State Key Laboratory of Coordination Chemistry,Nanjing University,Nanjing,Jiangsu 210093,China)

机构地区：[1]伊犁师范学院物理科学与技术学院,新疆凝聚态相变与微结构实验室,新疆伊宁835000 [2]南京大学化学化工学院,配位化学国家重点实验室,江苏南京210093

出　　处：《伊犁师范学院学报（自然科学版）》2018年第3期15-20,共6页Journal of Yili Normal University：Natural Science Edition

摘　　要：利用高速扫描量热法(FSC)对聚丙烯(PP)本体、聚丙烯(PP)/聚苯乙烯(PS)(30/70)共混体系中PP液滴的受限结晶动力学进行研究,获得了本体PP以及受限态PP在玻璃化转变至熔点整个温度区间的等温结晶动力学曲线.实验结果表明:PP/PS(30/70)体系的总结晶速率接近本体PP的结晶速率,这为共混物的改性提供了有效的依据.We studied the fractionated crystallization kinetics of Polypropylene(PP)confined in Polypropylene/Polystyrene(PP/PS 30/70)blends by fast scanning calorimetry(FSC)at a wide temperature region from glass transition temperature to melting temperature.Our FSC results indicated that compared to bulk PP,we observed the crystallization rate of PP/PS(30/70)back to the level of bulk PP.This result provided an effective basis for the modification of blends.

关 键 词：高速扫描量热仪 聚丙烯 受限结晶 共混 

分 类 号：O631[理学—高分子化学]