Conductive composites based on PDVF-C/sub 2/F/sub 3/H and substituted or pure poly(pyrroles)

1994 ◽  
Author(s):  
G. Boiteux ◽  
A. Ho-Hoang ◽  
F. Fache ◽  
M. Lemaire ◽  
J.K. Jeszka
1995 ◽  
Vol 69 (1-3) ◽  
pp. 487-489 ◽  
Author(s):  
G. Boiteux ◽  
A. Ho-Hoang ◽  
F. Fache ◽  
M. Lemaire ◽  
I. Glowaski ◽  
...  

2020 ◽  
pp. 089270572096564
Author(s):  
Xiao Wang ◽  
Hui Lu ◽  
Jun Chen

In this work, ultra-high molecular weight polyethylene (UHMWPE)/natural flake graphite (NG) polymer composites with the extraordinary high thermal conductivity were prepared by a facile mixed-heating powder method. Morphology observation and X-ray diffraction (XRD) tests revealed that the NG flakes could be more tightly coated on the surface of UHMWPE granules by mixed-heating process and align horizontally (perpendicular to the hot compression direction of composites). Laser flash thermal analyzer (LFA) demonstrated that the thermal conductivity (TC) of composites with 21.6 vol% of NG reached 19.87 W/(m·K) and 10.67 W/(m·K) in the in-plane and through-plane direction, respectively. Application experiment further demonstrated that UHMWPE/NG composites had strong capability to dissipate the heat as heat spreader. The obtained results provided a valuable basis for fabricating high thermal conductive composites which can act as advanced thermal management materials.


2021 ◽  
Vol 321 ◽  
pp. 171-176
Author(s):  
Jana Majerová ◽  
Rostislav Drochytka

The electrical conductivity of concrete can be achieved by adding steel wires or functional fillers. Commonly used fillers are nanotubes, carbon black, nickel powder and so on. These fillers are expensive, but there is a possibility to use waste materials. This is the subject of this experiment. The conductive properties of conductive sand, sludge from the wire drawing process, iron grinding dust waste and waste carbon were verified. From these fillers, waste carbon showed the best electrical properties (impedance). The impedance of the waste carbon was 0.31 Ω and the impedance of the cement composite containing 70% of the weight of waste carbon was less than 670 Ω.


2017 ◽  
Vol 46 (6) ◽  
pp. 266-276 ◽  
Author(s):  
Duxin Li ◽  
Qian Chen ◽  
Yisha Yang ◽  
Yue Chen ◽  
Chunguang Xiao

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