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首页> 外文期刊>Journal of Applied Polymer Science >Evolution of morphology, ferroelectric, and mechanical properties in poly( vinylidene fluoride)-poly(vinylidene fluoride-trifluoroethylene) blends
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Evolution of morphology, ferroelectric, and mechanical properties in poly( vinylidene fluoride)-poly(vinylidene fluoride-trifluoroethylene) blends

机译：聚（偏二氟乙烯氟化乙烯氟乙烯 - 三氟乙烯）共混物形态，铁电和机械性能的演变

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摘要

Considering the complementary properties of poly(vinylidene fluoride) (PVDF) and poly(vinylidene fluoride-trifluoroethylene) [P(VDF-TrFE)], it appears that their blends have the potential to be promising candidates for device applications. We report the evolution of morphology, ferroelectric, and mechanical properties (modulus and hardness) and their dependence on preparation temperature for PVDF-P(VDF-TrFE) blends. From ferroelectric hysteresis measurements it was found that P(VDF-TrFE) rich blends treated at higher temperature show significant values of remanent polarization. Remanent polarization values show a fourfold increase in these P(VDF-TrFE) rich blends treated at higher temperature. Interestingly, blends prepared from high temperature showed greater value of remanent polarization even though they were found to consist of smaller amount of electroactive phase as compared to their low temperature treated counterpart. Nanoindentation experiments revealed that high temperature treatment improves the modulus of blends by at least 100%. This report attempts to tie these findings to the morphology and crystallinity of these blends. (C) 2017 Wiley Periodicals, Inc.
机译：考虑到聚（偏二氟乙烯）（PVDF）和聚（偏二氟乙烯 - 三氟乙烯）的互补性能[P（VDF-TRFE）]，它们似乎它们的混合物具有对装置应用的有希望的候选者。我们报告了形态学，铁电和机械性能（模量和硬度）的演变及其对PVDF-P（VDF-TRFE）混合物的制备温度的依赖性。从铁电滞后测量中发现，在较高温度下处理的P（VDF-TRFE）富含共混物显示出重熔极化的显着值。结垢偏振值显示在较高温度下处理的这些P（VDF-TRFE）富含共混物的四倍增加。有趣的是，高温制备的混合物表明，即使发现与其低温处理的对应物相比，它们也被发现由较少量的电活性相组成的倒置极化值。纳米狭窄实验表明，高温处理将共混体的模量提高了至少100％。该报告试图将这些发现与这些混合物的形态和结晶性相结合。 （c）2017 Wiley期刊，Inc。

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