scholarly journals Effect of the processing of injection-molded, carbon black-filled polymer composites on resistivity

2011 ◽  
Vol 43 (11) ◽  
pp. 930-936 ◽  
Author(s):  
Haihong Wu ◽  
Lanfang Feng ◽  
Aiyun Jiang ◽  
Baofeng Zhang
Keyword(s):  
Carbon Black ◽  
Polymer Composites ◽  
Filled Polymer ◽  
Injection Molded

Calculation on the Residual Stresses of Injection-Molded Conductive-Carbon-Fiber-Filled Polymer Composites

2012 ◽  
Vol 629 ◽  
pp. 55-59
Author(s):  
Ai Yun Jiang ◽  
Jing Chao Zou ◽  
Bao Feng Zhang ◽  
Hai Hong Wu
Keyword(s):  
Carbon Fiber ◽  
Residual Stresses ◽  
Polymer Composites ◽  
Injection Molding Process ◽  
Molding Process ◽  
Filled Polymer ◽  
The Core ◽  
Packing Pressure ◽  
Core Areas ◽  
Injection Molded

For conductive-carbon-fiber-filled polymer composites, the residual stresses developed during injection molding process may affect not only the molding’s conductive property, but its dimensional stability as well. In order to improve the conductivity of the molding fabricated with this kind of composites, we investigated, using layer removal method, the distribution of the residual stresses of injection-molded conductive-carbon-fiber-filled polypropylene in this paper. The residual stresses were obtained under the actions of different processing conditions. Our results indicate that processing pressures have more significant effects on the residual stresses at the skin areas than the core areas of the sample because of fiber orientation. The tensile stresses of the molding at the core areas drop under the action of packing pressure, but the compressive stresses at the skin areas increase. The results reveal that the action of packing pressure may decrease the anisotropy of the residual stresses in the molding.

Prediction of the DC electrical conductivity of carbon black filled polymer composites

2015 ◽  
Vol 72 (10) ◽  
pp. 2561-2571 ◽  
Author(s):  
S. A. Elhad Kassim ◽  
M. E. Achour ◽  
L. C. Costa ◽  
F. Lahjomri
Keyword(s):  
Electrical Conductivity ◽  
Carbon Black ◽  
Polymer Composites ◽  
Filled Polymer ◽  
Dc Electrical Conductivity
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