Effect of phase coarsening under melt annealing on the electrical performance of polymer composites with a double percolation structure

2018 ◽  
Vol 20 (1) ◽  
pp. 137-147 ◽  
Author(s):  
Xiao-Rong Sun ◽  
Tao Gong ◽  
Jun-Hong Pu ◽  
Rui-Ying Bao ◽  
Bang-Hu Xie ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Network Formation ◽  
Electrical Performance ◽  
Phase Coarsening ◽  
Melt Annealing ◽  
Double Percolation ◽  
Percolation Structure

Effect of phase coarsening on CB NP network formation and the electrical performance of double percolated PP/PS/CB composites under quiescent melt annealing.

The Horizontally Polarized Shear Waves in Multilayered Piezo-Composites with 2-2 Connectivity

2004 ◽  
Vol 261-263 ◽  
pp. 465-470
Author(s):  
Zheng Hua Qian ◽  
Feng Jin ◽  
Zi Kun Wang ◽  
Kikuo Kishimoto
Keyword(s):  
Thin Film ◽  
Thin Films ◽  
Phase Velocity ◽  
Polymer Composites ◽  
Piezoelectric Ceramic ◽  
Shear Waves ◽  
Electrical Performance ◽  
Sh Waves ◽  
Structural Applications ◽  
Waves Propagation

Following the advances in structural applications, composite structures are being used commonly in transducer applications to improve acoustic, mechanical and electrical performance of piezoelectric devices. Functional composite transducers for sensors and actuators generally consist of ceramics and polymers, the disadvantage of the brittleness nature of the piezoelectric ceramics can be overcome and the structures especially good for sensing can be allowed for building up. Propagation behavior of horizontally polarized shear waves (SH-waves) in piezoelectric ceramic-polymer composites with 2-2 connectivity is taken into account. The multilayer structures are consisted of piezoelectric thin films bonded perfectly with polymeric thin films alternately. The phase velocity equations of SH-waves propagation in the piezoelectric ceramic-polymer composites with 2-2 connectivity are obtained for the cases of wave propagation in the direction perpendicular to the layering and along the layering, respectively. Filter effect of this kind of structure and the effect of volume fraction and shear modulus ratio of piezoelectric layer to polymer layer on the phase velocity are discussed in detail, respectively. One practical combination of piezoelectric thin film-polymer thin film multilayer system is chosen to carry out the numerical simulation, some basic properties of SH-waves propagation in above multilayered structures are revealed.

scholarly journals Electrical Conductivity Performance of Predicted Modified Fibre Contact Model for Multi-Filler Polymer Composite

Polymers ◽  
2019 ◽  
Vol 11 (9) ◽  
pp. 1425 ◽  
Author(s):  
Nabilah Afiqah Mohd Radzuan ◽  
Abu Bakar Sulong ◽  
David Hui ◽  
Anil Verma
Keyword(s):  
Electrical Conductivity ◽  
Polymer Composite ◽  
Network Formation ◽  
Bipolar Plate ◽  
Contact Model ◽  
Electrical Performance ◽  
Hot Press ◽  
Compression Pressure ◽  
Milling Method ◽  
Predicted Model

Polymer composites have been extensively fabricated given that they are well-fitted for a variety of applications, especially concerning their mechanical properties. However, inadequate outcomes, mainly regarding their electrical performance, have limited their significant potential. Hence, this study proposed the use of multiple fillers, with different geometries, in order to improve the electrical conductivity of a polymer composite. The fabricated composite was mixed, using the ball milling method, before being compressed by a hot press machine at 3 MPa for 10 min. The composite plate was then measured for both its in-plane and through-plane conductivities, which were 3.3 S/cm, and 0.79 S/cm, respectively. Furthermore, the experimental data were then verified using a predicted electrical conductivity model, known as a modified fibre contact model, which considered the manufacturing process, including the shear rate and flow rate. The study indicated that the predicted model had a significant trend and value, compared to the experimental model (0.65 S/cm for sample S1). The resultant fabricated composite materials were found to possess an excellent network formation, and good electrical conductivity for bipolar plate application, when applying compression pressure of 3 MPa for 10 min.

The effect of chain mobility on the coarsening process of co-continuous, immiscible polymer blends under quiescent melt annealing

2017 ◽  
Vol 19 (20) ◽  
pp. 12712-12719 ◽  
Author(s):  
Tao Gong ◽  
Rui-Ying Bao ◽  
Zheng-Ying Liu ◽  
Bang-Hu Xie ◽  
Ming-Bo Yang ◽  
...  
Keyword(s):  
Polymer Blends ◽  
Immiscible Polymer Blends ◽  
Phase Coarsening ◽  
Chain Mobility ◽  
Immiscible Polymer ◽  
Melt Annealing ◽  
The Relationship

The relationship between the mobility of polymer molecular chains and the phase coarsening process of co-continuous, immiscible polymer blends under quiescent melt annealing is presented.

Three-dimensional porous stretchable and conductive polymer composites based on graphene networks grown by chemical vapour deposition and PEDOT:PSS coating

2015 ◽  
Vol 51 (15) ◽  
pp. 3169-3172 ◽  
Author(s):  
Mengting Chen ◽  
Shasha Duan ◽  
Ling Zhang ◽  
Zhihui Wang ◽  
Chunzhong Li
Keyword(s):  
Electrical Conductivity ◽  
Polymer Composites ◽  
Vapour Deposition ◽  
Conductive Polymer ◽  
Three Dimensional ◽  
Chemical Vapour ◽  
Electrical Performance ◽  
Retention Capacity ◽  
Cvd Graphene ◽  
Conductive Polymer Composites

The porous CVD graphene–PEDOT:PSS–PDMS composite has outstanding electrical performance, including higher electrical conductivity and better resistance retention capacity than the CVD graphene–PDMS composite.

Water transport in polymer composites through swelling-induced networks of hydrogel particles

Soft Matter ◽  
2020 ◽  
Vol 16 (35) ◽  
pp. 8254-8261 ◽  
Author(s):  
Johannes Eiler ◽  
Søren Bredmose Simonsen ◽  
Daniel Hansen ◽  
Bahar Bingöl ◽  
Kristoffer Hansen ◽  
...  
Keyword(s):  
Polymer Composites ◽  
Water Transport ◽  
Network Formation ◽  
Hydrogel Particles

Upon hydration, the swelling of particles can lead to network formation within polymer composites and thus provide a pathway for water transport.

Electrical performance of carbon nanotube-polymer composites at frequencies up to 220 GHz

2011 ◽  
Vol 99 (15) ◽  
pp. 153109 ◽  
Author(s):  
Ali H. Alshehri ◽  
Malgorzata Jakubowska ◽  
Marcin Sloma ◽  
Michal Horaczek ◽  
Diana Rudka ◽  
...  
Keyword(s):  
Carbon Nanotube ◽  
Polymer Composites ◽  
Electrical Performance
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