Nonisothermal crystallization and microstructural behavior of poly(ε-caprolactone) and granular tapioca starch-based biocomposites

被引：12
|
作者：
Achla [1 ]
Maiti, S. N. [1 ]
Jacob, Josemon [1 ]
机构：
[1] Indian Inst Technol Delhi, Ctr Polymer Sci & Engn, New Delhi 110016, India
来源：
INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION | 2017年 / 22卷 / 03期
关键词：
Nonisothermal crystallization; nucleation; PCL; spherulite growth; GLASS-FORMING MELTS; CATALYZED NUCLEATION; COLD CRYSTALLIZATION; KINETICS; COMPOSITES; BARRIER;
D O I：
10.1080/1023666X.2017.1282017
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 nonisothermal crystallization behavior of poly(epsilon-caprolactone) (PCL) in the presence of varying concentrations of granular tapioca starch (GTS) was studied. Various crystallization parameters were studied by differential scanning calorimeter at four different cooling rates and these parameters were analyzed using Jeziorny, Ozawa, and Liu models. Kissinger method was used to estimate the activation energy (Delta E) of the PCL/GTS composites. The Delta E results suggested that the speed of crystallization was inhibited by GTS particles. Polarized light optical microscopy suggests formation of spherulite structure in PCL and PCL/GTS composites while no evidence of nucleation by GTS particles was observed.
引用
收藏
页码：222 / 236
页数：15
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