Crystallization behavior of biodegradable poly(ethylene adipate) modulated by a benign nucleating agent: Zinc phenylphosphonate
Autor: | Rong Liang, Jinjun Yang, Rui Kong, Xue-lei Liu, Jing Yin, Lu-kai Wang, Yichun Chen, Chunqiu Zhang, Xin Feng |
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Rok vydání: | 2017 |
Předmět: |
Ethylene
Materials science Polymers and Plastics General Chemical Engineering Nucleation chemistry.chemical_element 02 engineering and technology Zinc 010402 general chemistry 01 natural sciences law.invention Crystal chemistry.chemical_compound Crystallinity law Adipate Polymer chemistry Crystallization Organic Chemistry food and beverages 021001 nanoscience & nanotechnology 0104 chemical sciences Avrami equation chemistry Chemical engineering 0210 nano-technology |
Zdroj: | Chinese Journal of Polymer Science. 35:558-568 |
ISSN: | 1439-6203 0256-7679 |
Popis: | Zinc phenylphosphonate (PPZn), a benign and biocompatible nucleating agent, was prepared and incorporated into the biodegradable poly(ethylene adipate) (PEA) to investigate its effect on the crystallization behavior, crystallization kinetics and spherulite morphology of PEA. Upon addition of PPZn, the crystallization temperature and crystallinity of PEA in the non-isothermal crystallization process increased significantly. Analysis of crystallization kinetics by Avrami equation suggests that the crystallization time shortened greatly and crystallization rate increased markedly after addition of PPZn. In the presence of PPZn, the spherulite size decreased and spherulite density increased significantly. It suggests that PPZn is an efficient nucleating agent for the crystallization of PEA. The accelerated crystallization in the presence of PPZn is mainly attributed to the epitaxial nucleation of PEA crystals on the surface of PPZn crystals, that is, a perfect lattice matching between PEA crystal and PPZn crystal occurs. |
Databáze: | OpenAIRE |
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