Crystallization behavior of poly(ε-caprolactone)/layered double hydroxide nanocomposites

Poly(ε-caprolactone) (PCL)/layered double hydroxide (LDH) nanocomposites were prepared successfully via simple solution intercalation. The nonisothermal melt crystallization kinetics of neat PCL and its LDH nanocomposites was investigated with the Ozawa, Avrami, and combined Avrami-Ozawa methods. Th...

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Veröffentlicht in:Journal of applied polymer science Jg. 116; H. 5; S. 2658 - 2667
Hauptverfasser: Yang, Zhe, Peng, Hongdan, Wang, Weizhi, Liu, Tianxi
Format: Journal Article
Sprache:Englisch
Veröffentlicht: Hoboken Wiley Subscription Services, Inc., A Wiley Company 05.06.2010
Wiley
Schlagworte:
Activation energy
Applied sciences
Composites
Crystallization
Exact sciences and technology
Forms of application and semi-finished materials
Hydroxides
Intercalation
Mathematical models
Melts
morphology
Nanocomposites
Nucleation
poly(ϵ-caprolactone)
Polymer industry, paints, wood
Reproduction
Technology of polymers
Aluminium Hydroxides
Experimental study
Lactone polymer
Modeling
nanocomposites
Composite material
Kinetic model
Melt crystallization
poly(ε-caprolactone)
Cobalt Hydroxides
Layered double hydroxide
Morphology
Aliphatic polymer
crystallization
Nanocomposite
Kinetics
Polycaprolactone
Activation energy
ISSN:0021-8995, 1097-4628, 1097-4628
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Zusammenfassung:Poly(ε-caprolactone) (PCL)/layered double hydroxide (LDH) nanocomposites were prepared successfully via simple solution intercalation. The nonisothermal melt crystallization kinetics of neat PCL and its LDH nanocomposites was investigated with the Ozawa, Avrami, and combined Avrami-Ozawa methods. The Ozawa method failed to describe the crystallization kinetics of the studied systems. The Avrami method was found to be useful for describing the nonisothermal crystallization behavior, but the parameters in this method do not have explicit meaning for nonisothermal crystallization. The combined Avrami-Ozawa method explained the nonisothermal crystallization behavior of PCL and its LDH nanocomposites effectively. The kinetic results and polarized optical microscopy observations indicated that the addition of LDH could affect the mechanism of nucleation and growth of the PCL matrix. The Takhor model was used to analyze the activation energies of nonisothermal crystallization.
Bibliographie:http://dx.doi.org/10.1002/app.31787
National Natural Science Foundation of China - No. 50873027
Shanghai Leading Academic Discipline Project - No. B113
ark:/67375/WNG-FLN904C1-8
Fudan's Undergraduate Research Opportunities Program (through the Wangdao project) - No. 08093
ArticleID:APP31787
istex:A4E5234BA7746C1D19CC5C36769DEFA93462E502
ObjectType-Article-1
SourceType-Scholarly Journals-1
ObjectType-Feature-2
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ISSN:0021-8995
1097-4628
1097-4628
DOI:10.1002/app.31787