Isothermal-crystallization Kinetics and Spherulite Growth of Aliphatic Polyketone/Polyamide-6 Blends

In this research, the morphologies, isothermal-crystallization kinetics, and spherulite growth of aliphatic polyketone/polyamide-6 blends were studied. A single glass-transition temperature （Tg） was determined, and the composition dependence of Tg for these blends was well described by the Kwei equa...

Full description

Saved in:
Bibliographic Details
Published in:Chinese journal of polymer science 2017-06, Vol.35 (6), p.782-792
Main Authors: Zhang, He-xin, Huh, Seong-Rok, Ko, Eun-Bin, Park, Byung-Sik, Yoon, Keun-Byoung
Format: Article
Language:English
Subjects:
Aliphatic compounds
Characterization and Evaluation of Materials
Chemistry
Chemistry and Materials Science
Composition
Condensed Matter Physics
Crystallization
Glass transition temperature
Industrial Chemistry/Chemical Engineering
Kinetics
Melting points
Polyamide resins
Polyketones
Polymer blends
Polymer Sciences
Spherulites
Temperature dependence
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:In this research, the morphologies, isothermal-crystallization kinetics, and spherulite growth of aliphatic polyketone/polyamide-6 blends were studied. A single glass-transition temperature （Tg） was determined, and the composition dependence of Tg for these blends was well described by the Kwei equation. The strong intermolecular interaction between the two polymer components was confirmed by melting-point depression. The isothermal-crystallization kinetics were analyzed on the basis of the Avrami approach. A linear increase in the radii of the spherulites with time was observed for all compositions. All the spherulites continued to grow at nearly identical growth rates. With increasing polyamide-6 content, the size of the spherulites in the polyketone/polyamide-6 blends gradually decreased, and the number of spherulites in the blends increased.
ISSN:0256-7679
1439-6203
DOI:10.1007/s10118-017-1936-3