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Nonisothermal crystallization kinetics of poly(butylene terephthalate)/poly(ethylene terephthalate)/glass fiber composites
Author(s) -
Zhang Zhonghou,
Feng Li,
Li Yadong,
Wang Yintao,
Yan Chunmian
Publication year - 2015
Publication title -
polymer composites
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.577
H-Index - 82
eISSN - 1548-0569
pISSN - 0272-8397
DOI - 10.1002/pc.22966
Subject(s) - materials science , crystallization , differential scanning calorimetry , ethylene , kinetics , composite material , poly ethylene , optical microscope , glass fiber , polarized light microscopy , fiber , glass transition , polymer chemistry , chemical engineering , scanning electron microscope , polymer , thermodynamics , organic chemistry , chemistry , catalysis , physics , optics , quantum mechanics , engineering
The influences of the glass fiber (GF) content and the cooling rate for nonisothermal crystallization process of poly(butylene terephthalate)/poly(ethylene terephthalate) (PBT/PET) blends were investigated. The nonisothermal crystallization kinetics of samples were detected by differential scanning calorimetry (DSC) at cooling rates of 5°C/min, 10°C/min, 15°C/min, 20°C/min, 25°C/min, respectively. The Jeziony and Mozhishen methods were used to analyze the DSC data. The crystalline morphology of samples was observed with polarized light microscope. Results showed that the Jeziony and Mozhishen methods were available for the analysis of the nonisothermal crystallization process. The peaks of crystallization temperature ( T p ) move to low temperature with the cooling rate increasing, crystallization half‐time ( t 1/2 ) decrease accordingly. The crystallization rate of PBT/PET blends increase with the lower GF contents while it is baffled by higher GF contents. POLYM. COMPOS. 36:510–516, 2015. © 2014 Society of Plastics Engineers