scholarly journals Enhanced thermal properties of poly(vinylidene fluoride) composites with ultrathin nanosheets of MXene

RSC Advances ◽  
2017 ◽  
Vol 7 (33) ◽  
pp. 20494-20501 ◽  
Author(s):  
Yong Cao ◽  
Qihuang Deng ◽  
Zhiduo Liu ◽  
Dianyu Shen ◽  
Ting Wang ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Vinylidene Fluoride ◽  
Ultrathin Nanosheets ◽  
Poly Vinylidene Fluoride

We report a facile method to delaminate MXenes and prepare poly(vinylidene fluoride)/MXene composites with excellent thermal properties.

Enhancement of the Dielectric Constant and Thermal Properties of α-Poly(vinylidene fluoride)/Zeolite Nanocomposites

2010 ◽  
Vol 114 (34) ◽  
pp. 14446-14452 ◽  
Author(s):  
Ana Catarina Lopes ◽  
Marco P. Silva ◽  
Renato Gonçalves ◽  
Manuel F. R. Pereira ◽  
Gabriela Botelho ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Thermal Properties ◽  
Vinylidene Fluoride ◽  
Poly Vinylidene Fluoride

scholarly journals 3D Porous Graphene Based Aerogel for Electromagnetic Applications

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Hossein Cheraghi Bidsorkhi ◽  
Alessandro Giuseppe D’Aloia ◽  
Alessio Tamburrano ◽  
Giovanni De Bellis ◽  
Andrea Delfini ◽  
...  
Keyword(s):  
Thermal Properties ◽  
Vinylidene Fluoride ◽  
Mechanical Stability ◽  
Electronic Devices ◽  
Cost Effective ◽  
Water Repellent ◽  
Processing Temperature ◽  
Porous Graphene ◽  
Poly Vinylidene Fluoride ◽  
Selection Of

Abstract Lightweight multifunctional electromagnetic (EM) absorbing materials with outstanding thermal properties, chemical resistance and mechanical stability are crucial for space, aerospace and electronic devices and packaging. Therefore, 3D porous graphene aerogels are attracting ever growing interest. In this paper we present a cost effective lightweight 3D porous graphene-based aerogel for EM wave absorption, constituted by a poly vinylidene fluoride (PVDF) polymer matrix filled with graphene nanoplatelets (GNPs) and we show that the thermal, electrical, mechanical properties of the aerogel can be tuned through the proper selection of the processing temperature, controlled either at 65 °C or 85 °C. The produced GNP-filled aerogels are characterized by exceptional EM properties, allowing the production of absorbers with 9.2 GHz and 6.4 GHz qualified bandwidths with reflection coefficients below −10 dB and −20 dB, respectively. Moreover, such aerogels show exceptional thermal conductivities without any appreciable volume change after temperature variations. Finally, depending on the process parameters, it is shown the possibility to obtain water repellent aerogel composites, thus preventing their EM and thermal properties from being affected by environmental humidity and allowing the realization of EM absorber with a stable response.

Investigation of electrical and thermal properties of poly (vinylidene fluoride)/strontium hexaferrite polymer composites

2020 ◽  
Vol 31 (24) ◽  
pp. 22687-22698
Author(s):  
Deeptimayee Khatua ◽  
Minakshi Padhy ◽  
Rajesh K. Singh ◽  
R. N. P. Choudhary ◽  
P. Ganga Raju Achary
Keyword(s):  
Thermal Properties ◽  
Polymer Composites ◽  
Vinylidene Fluoride ◽  
Strontium Hexaferrite ◽  
Poly Vinylidene Fluoride

scholarly journals Electrochemical and thermal properties of polymer-layered silicate nanocomposites for energy storage applications

2021 ◽  
pp. 096739112110128
Author(s):  
A.K. Nath ◽  
Bhaswati Sarma
Keyword(s):  
Electron Microscopy ◽  
Thermal Properties ◽  
Vinylidene Fluoride ◽  
Layered Silicate ◽  
Decomposition Temperature ◽  
X Ray Diffraction ◽  
Silicate Nanocomposites ◽  
Transmission Electron ◽  
Poly Vinylidene Fluoride ◽  
Ion Conducting

The present work gives an outline of electrochemical and thermal properties of single ion conducting polymer-layered silicate nanocomposites. High resolution transmission electron microscopy and X-ray diffraction studies prove the intercalation of poly(vinylidene fluoride-co-hexafluoropropylene) (PVdF-HFP) inside the interlayer galleries of montmorillonite (MMT) silicate. Scanning electron microscopy reveals porosity increases with increasing MMT concentration. Room temperature ionic conductivity of 1.2 × 10−5 S cm−1 has been obtained. Electrochemical stability increases with increasing MMT concentration attaining the highest value of 4.2 V at 20 wt.% of MMT. Thermal properties substantiate decomposition temperature in the range of 300–374°C for the nanocomposites.

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