Effect of clay on melt crystallization, crystallization kinetics and spherulitic morphology of poly(trimethylene terephthalate) nanocomposites

2015 ◽  
Vol 617 ◽  
pp. 152-162 ◽  
Author(s):  
Lawrence Smith ◽  
Nadarajah Vasanthan
Keyword(s):  
Crystallization Kinetics ◽  
Melt Crystallization ◽  
Spherulitic Morphology ◽  
Trimethylene Terephthalate

scholarly journals Non-isothermal melt-crystallization kinetics of poly(trimethylene terephthalate)

2004 ◽  
Vol 23 (7) ◽  
pp. 817-826 ◽  
Author(s):  
Nattapol Apiwanthanakorn ◽  
Pitt Supaphol ◽  
Manit Nithitanakul
Keyword(s):  
Crystallization Kinetics ◽  
Melt Crystallization ◽  
Trimethylene Terephthalate ◽  
Kinetics Of

Isothermal melt crystallization kinetics, melting behavior, and spherulitic morphology of novel biobased poly(hexylene oxalate)

RSC Advances ◽  
2015 ◽  
Vol 5 (126) ◽  
pp. 104250-104257 ◽  
Author(s):  
Rui Yan ◽  
Zhaobin Qiu
Keyword(s):  
Crystallization Kinetics ◽  
Crystallization Temperature ◽  
Melting Behavior ◽  
Melt Crystallization ◽  
Temperature Range ◽  
Spherulitic Morphology ◽  
Banded Spherulites

Banded spherulites were observed for novel biobased poly(hexylene oxalate) in a wide crystallization temperature range.

Crystallization Regimes and Spherulitic Morphology of Poly(trimethylene terephthalate/isophthalate) Random Copolyesters

2013 ◽  
Vol 834-836 ◽  
pp. 129-132
Author(s):  
Chia Hsin Tung ◽  
Tien Wei Shyr
Keyword(s):  
Growth Rate ◽  
Crystallization Kinetics ◽  
Acid Content ◽  
Isophthalic Acid ◽  
Nucleation Theory ◽  
Secondary Nucleation ◽  
Spherulitic Growth ◽  
Spherulitic Morphology ◽  
Trimethylene Terephthalate ◽  
Regime Transitions

The crystallization regimes and spherulitic morphology of poly (trimethylene terephthalate/isophthalate) (TI) random copolyesters were studied in this work. A hot stage polarizing microscope was used to observe morphology and measure growth rate of the spherulite of TI copolyesters. Lauritzen-Hoffman secondary nucleation theory was applied to investigate crystallization kinetics and regimes of TI copolyesters. Results show that the spherulitic growth rate decreased with an increase in isophthalic acid content of the copolyesters. The analysis of Lauritzen-Hoffman secondary nucleation theory shows that regime I, II, and III were observed in TI11 and TI21. Regime III was observed in TI29. The spherulitic morphology of TI11, TI21, and TI29 changed from elliptical-shaped spherulite to irregular spherulite and then to normal spherulite at the regime transitions.

Effect of Graphene Oxide on Non-Isothermal Melt Crystallization Kinetics of Poly(Trimethylene Terephthalate)

2017 ◽  
Vol 748 ◽  
pp. 74-78
Author(s):  
Kun Yan Wang ◽  
Bin Li
Keyword(s):  
Graphene Oxide ◽  
Crystallization Kinetics ◽  
Isothermal Crystallization ◽  
Degree Of Crystallinity ◽  
Crystallization Time ◽  
Melt Crystallization ◽  
Scanning Calorimetry ◽  
Melt Mixing ◽  
Trimethylene Terephthalate ◽  
Kinetics Of

Poly (trimethylene terephthalate) (PTT)/graphene oxide (GO) nanocomposites were prepared by melt mixing. The effect of GO on non-isothermal melt crystallization kinetics of PTT with different amounts of GO were investigated by differential scanning calorimetry (DSC). The Avrami, Ozawa and Mo were used to analyze the non-isothermal crystallization process. The results of Avrami analysis showed that adding GO into PTT matrix changed the crystallization nucleation of PTT. Ozawa analysis could not be used for the non-isothermal crystallization of PTT/GO nanocomposites. According to the results of Mo analysis, a higher cooling rate would be needed in order to obtain a higher degree of crystallinity at unit crystallization time.

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