Effect of Organoclay Platelets on Crystallization of PTT/EPDM-g-MA Blends: Isothermal Crystallization

被引：2
作者：
Wang, Kunyan [1 ]
Chen, Yanmo [1 ]
机构：
[1] Donghua Univ, Coll Mat Sci & Engn, State Key Lab Modificat Chem Fibers & Polymer Mat, Shanghai 201620, Peoples R China
来源：
JOURNAL OF MACROMOLECULAR SCIENCE PART B-PHYSICS | 2009年 / 48卷 / 05期
关键词：
crystallization kinetics; isothermal crystallization; poly(trimethylene terephthalate) (PTT); DIFFERENTIAL SCANNING CALORIMETRY; MODIFIED LAYERED SILICATE; IN-SITU POLYMERIZATION; MECHANICAL-PROPERTIES; POLY(TRIMETHYLENE TEREPHTHALATE); THERMOMECHANICAL PROPERTIES; NANOCOMPOSITE FIBERS; MELTING BEHAVIOR; MORPHOLOGY; POLYPROPYLENE;
D O I：
10.1080/00222340903028985
中图分类号：
O63 [高分子化学（高聚物）];
学科分类号：
070305 ; 080501 ; 081704 ;
摘要：
The effects of organoclay platelets and ethylene-propylene-diene copolymer grafted with maleic anhydride (EPDM-g-MA) on the isothermal crystallization kinetics of poly(trimethylene terephthalate) (PTT) were investigated by differential scanning calorimeter (DSC) over the crystallization temperature range of 164 degrees C-180 degrees C. The crystallization kinetics under isothermal conditions could be described by the Avrami equation, with values of the Avrami exponent between 2.4 and 2.9 for all samples. The crystallization rate parameters (K) decrease with increasing of the melt crystallization temperature for all samples. The activation energies were determined by the Arrhenius equation for isothermal crystallization. The equilibrium melting point of isothermally crystallized samples was also evaluated.
引用
收藏
页码：877 / 888
页数：12
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