期刊
POLYMER
卷 51, 期 2, 页码 469-474出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.polymer.2009.11.057
关键词
Clay nanocomposite; PVDF copolymer; Toughness
资金
- King Abdullah University of Science and Technology (KAUST) [KUS-C1-018-02]
Structure-properties relationships in poly(vinylidene fluoride-co-hexafluoropropylene), PVDF-HFP, clay nanocomposites are reported for the first time. Addition of organically modified clays to PVDF-HFP promotes an alpha to beta transformation of the polymer crystals. The degree of transformation depends on the nature of the clay surface modifier and scales with the strength of the interactions between the clay and the polymer. The nanocomposites exhibit significant increases in elongation to failure compared to the neat copolymer. In addition, their dielectric permittivity is higher over a wide temperature range. Their mechanical and dielectric properties scale similar to the amount of the beta phase present in the nanocomposites. (C) 2009 Elsevier Ltd. All rights reserved.
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