期刊
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
卷 94, 期 1, 页码 119-127出版社
SPRINGER
DOI: 10.1007/s10973-007-8908-8
关键词
crystallization; interfacial free energies; polypropylene; wood flour
资金
- Secretaria Xeral de Investigacion e Desenrolo, Xunta de Galicia [XUGA-PGIDIT05TMT17201PR]
- Hamburg (Hasylab, DESY)
- European Commission [R113-CT-2004-506008 (IA-SFS)]
Isothermal crystallization and melting of isotactic polypropylene in binary polypropylene-wood flour composites has been studied by DSC, and the influence of an ethylene-methacrylic acid copolymer interfacial agent analyzed. Wood flour induces a slight nucleating effect, reducing the basal interfacial free energy of nucleation and increasing the overall crystallization rate. The interfacial agent generates a compatibilization phenomenon and an increase in the basal interfacial free energies with respect to the binary composites. In both binary and ternary systems the melting behaviour is a function of undercooling and is unaltered by the presence of either wood flour or the interfacial agent.
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