Leveraging Shape Memory Coupled Piezoelectric Properties in Melt Extruded Composite Filament Based on Polyvinylidene Fluoride and Polyurethane,Macromolecular Materials and Engineering

当前位置： X-MOL 学术 › Macromol. Mater. Eng. › 论文详情

Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)

Leveraging Shape Memory Coupled Piezoelectric Properties in Melt Extruded Composite Filament Based on Polyvinylidene Fluoride and Polyurethane
Macromolecular Materials and Engineering ( IF 4.2 ) Pub Date : 2020-11-05 , DOI: 10.1002/mame.202000296
Anupam Chowdhury ₁ , Satyaranjan Bairagi ₁ , Syed Wazed Ali ₁ , Bipin Kumar ₁

Affiliation

Multifunctional piezoelectric nanocomposites are promising in terms of strain sensors and actuators having ability to switch their dimensional states in a programmed temperature depending on their chemical compositions. In this research work, the effect of immiscible blends of polyurethane and polyvinylidene fluoride to induce polar β‐phase in the melt extruded composite filament and the effect of reduced graphene oxide (r‐GO) in combined properties of piezoelectricity and shape memory behavior are studied with the aid of different characterization techniques. The thermal analysis by differential scanning calorimetry also reiterates the similar behavior of crystalline phases in melting transitions and compatibilization effect of r‐GO is well supported by field emission scanning electron microscopy. Moreover, some of these filaments possess promising shape memory behavior with recovery ratios up to 100%. One of the nanocomposite filament‐based energy harvesters generates average open circuit maximum voltage of ≈349 mV. These types of melt extruded nanocomposite filament‐based energy harvesters are promising in terms of miniaturized power sources fitting into different conformed surfaces having varied contours.

中文翻译：

利用聚偏氟乙烯和聚氨酯的熔融挤出复合长丝中的形状记忆耦合压电特性

就应变传感器和致动器而言，多功能压电纳米复合材料有望根据其化学成分在程序设定的温度下切换其尺寸状态。在这项研究工作中，研究了聚氨酯和聚偏二氟乙烯的不混溶共混物在熔融挤出复合长丝中诱导极性β相的作用以及还原型氧化石墨烯（r-GO）对压电性和形状记忆行为的综合影响。借助不同的表征技术。通过差示扫描量热法进行的热分析还重申了结晶相在熔融转变中的相似行为，并且r-GO的增容作用得到了场发射扫描电子显微镜的良好支持。此外，其中一些长丝具有良好的形状记忆性能，回收率高达100％。其中一种基于纳米复合纤维的能量收集器产生的平均开路最大电压约为349 mV。这些类型的熔融挤出纳米复合长丝基能量收集器在将微型电源安装到轮廓各异的不同贴合表面方面很有前途。

更新日期：2020-12-15

点击分享查看原文

点击收藏

阅读更多本刊最新论文本刊介绍/投稿指南11