The role of electronic and ionic conduction in the electrical conductivity of carbon fiber reinforced cement

Carbon ◽  
2006 ◽  
Vol 44 (11) ◽  
pp. 2130-2138 ◽  
Author(s):  
Sihai Wen ◽  
D.D.L. Chung
Keyword(s):  
Electrical Conductivity ◽  
Carbon Fiber ◽  
Ionic Conduction ◽  
Fiber Reinforced ◽  
Reinforced Cement ◽  
Carbon Fiber Reinforced

Study on Electrical Properties of Carbon Fiber Reinforced Cement Paste with CCCW

2009 ◽  
Vol 66 ◽  
pp. 273-276
Author(s):  
Xiao Ming Fan ◽  
Xu Dong ◽  
Ming Qing Sun ◽  
Zhuo Qiu Li
Keyword(s):  
Electrical Conductivity ◽  
Electrical Properties ◽  
Carbon Fiber ◽  
Cement Paste ◽  
Compression Stress ◽  
Fiber Reinforced ◽  
Reinforced Cement ◽  
Percolation Phenomena ◽  
Carbon Fiber Reinforced ◽  
The Relationship

In this work, CCCW (cementitious capillary crystalline waterproofing materials) was added in CFRC (carbon fiber reinforced cement paste). Variations of electrical conductivity of CFRC with fiber contents (0.2%~2.0% by the weight of cement) and CCCW (3% by the weight of cement) were studied. The results showed that the resistivity of CFRC containing CCCW versus the concentration of carbon fiber curves had typical features of percolation phenomena. The percolation threshold was 1.2 wt.%. The relationship between resistance and compressive stress was repeatable in CFRC with carbon fiber content of 1.2 wt.%. The resistance decreased in nearly linearity to the compression stress during loading, and increased during unloading.

scholarly journals Effect of plasma surface modification on pullout characteristics of carbon fiber-reinforced cement composites

Carbon Trends ◽  
2021 ◽  
Vol 3 ◽  
pp. 100030
Author(s):  
Jin Hee Kim ◽  
Jong Hun Han ◽  
Seungki Hong ◽  
Doo-Won Kim ◽  
Sang Hee Park ◽  
...  
Keyword(s):  
Surface Modification ◽  
Carbon Fiber ◽  
Cement Composites ◽  
Fiber Reinforced ◽  
Plasma Surface Modification ◽  
Plasma Surface ◽  
Reinforced Cement ◽  
Carbon Fiber Reinforced

Improvement of the electrical conductivity of carbon fiber reinforced polymer by incorporation of nanofillers and the resulting thermal and mechanical behavior

2017 ◽  
Vol 52 (11) ◽  
pp. 1495-1503 ◽  
Author(s):  
K Hamdi ◽  
Z Aboura ◽  
W Harizi ◽  
K Khellil
Keyword(s):  
Electrical Conductivity ◽  
Carbon Fiber ◽  
Carbon Black ◽  
Electrical Current ◽  
Polyamide 6 ◽  
Fiber Reinforced Polymer ◽  
Carbon Fiber Reinforced Polymer ◽  
Fiber Reinforced ◽  
Reinforced Polymer ◽  
Carbon Fiber Reinforced

This work tends to characterize the effect of carbon black nanofillers on the properties of the woven carbon fiber reinforced thermoplastic polymers. First of all, composites from nanofilled Polyamide 6 resin reinforced by carbon fibers were fabricated. Scanning electron microscopy observations were performed to localize the nanoparticles and showed that particles penetrated the fiber zone. In fact, by reaching this zone, the carbon black nanofillers create a connectivity's network between fibers, which produces an easy pathway for the electrical current. It explains the noticed improvement of the electrical conductivity of the carbon black nanofilled composites. Electrical conductivity of neat matrix composite passed from 20 to 80 S/cm by adding 8 wt% of carbon black and to 140 S/cm by adding 16 wt% of the same nanofiller. The addition of nanofillers modifies the heating and cooling laws of carbon fiber reinforced polymer: the nanofilled carbon fiber reinforced polymer with 16 wt% is the most conductive so it heats less. Based on these results, the use of the composite itself as an indicator of this mechanical state might be possible. In fact, the study of the influence of a mechanical loading on the electrical properties of the composite by recording the variance of an electrical set is possible.

scholarly journals Electrical Current Map and Bulk Conductivity of Carbon Fiber-Reinforced Nanocomposites

Polymers ◽  
2019 ◽  
Vol 11 (11) ◽  
pp. 1865 ◽  
Author(s):  
Liberata Guadagno ◽  
Luigi Vertuccio ◽  
Carlo Naddeo ◽  
Marialuigia Raimondo ◽  
Giuseppina Barra ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Carbon Fiber ◽  
Electrical Current ◽  
Bulk Conductivity ◽  
Fiber Reinforced ◽  
Electrical Stability ◽  
Flame Resistance ◽  
Ac Electrical Conductivity ◽  
Multi Wall Carbon Nanotubes ◽  
Carbon Fiber Reinforced

A suitably modified resin film infusion (RFI) process was used for manufacturing carbon fiber-reinforced composites (CFRCs) impregnated with a resin containing nanocages of glycidyl polyhedral oligomeric silsesquioxane (GPOSS) for enhancing flame resistance and multi-wall carbon nanotubes (MWCNTs) to contrast the electrical insulating properties of the epoxy resin. The effects of the different numbers (7, 14 and 24) of the plies on the equivalent direct current (DC) and alternating current (AC) electrical conductivity were evaluated. All the manufactured panels manifest very high values in electrical conductivity. Besides, for the first time, CFRC strings were analyzed by tunneling atomic force microscopy (TUNA) technique. The electrical current maps highlight electrically conductive three-dimensional networks incorporated in the resin through the plies of the panels. The highest equivalent bulk conductivity is shown by the seven-ply panel characterized by the parallel (σ//0°) in-plane conductivity of 16.19 kS/m. Electrical tests also evidence that the presence of GPOSS preserves the AC electrical stability of the panels.

Enhanced thermoelectric properties of carbon fiber reinforced cement composites

2016 ◽  
Vol 42 (10) ◽  
pp. 11568-11573 ◽  
Author(s):  
Jian Wei ◽  
Qian Zhang ◽  
Lili Zhao ◽  
Lei Hao ◽  
Chunli Yang
Keyword(s):  
Carbon Fiber ◽  
Thermoelectric Properties ◽  
Cement Composites ◽  
Fiber Reinforced ◽  
Reinforced Cement ◽  
Carbon Fiber Reinforced
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