scholarly journals A study of the layered microstructure and electrical resistivity of an injection-molded metallic fiber-filled polymer composites

2012 ◽  
Vol 44 (11) ◽  
pp. 1138-1144 ◽  
Author(s):  
Haihong Wu ◽  
Xingzhi Sun ◽  
Gangyi Cai ◽  
Zhenfeng Zhao
Keyword(s):  
Electrical Resistivity ◽  
Polymer Composites ◽  
Filled Polymer ◽  
Injection Molded ◽  
Metallic Fiber

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.

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

Polymer composites as sensing materials for liquid organic solvents – preliminary results

e-Polymers ◽  
2011 ◽  
Vol 11 (1) ◽  
Author(s):  
Stanislaw Frackowiak ◽  
Monika Maciejewska ◽  
Andrzej Szczurek ◽  
Marek Kozlowski
Keyword(s):  
Electrical Resistivity ◽  
Carbon Black ◽  
Polymer Composites ◽  
Percolation Theory ◽  
Liquid Mixtures ◽  
Organic Liquids ◽  
Volumetric Fraction ◽  
Factors Influencing ◽  
Benzene Toluene ◽  
Main Factors

AbstractCarbon black-filled polymer composites were investigated as sensing materials for organic liquids. Polypropylene and polystyrene which were selected as matrices and various amounts of carbon black were considered as the main factors influencing sensitivity of the composites in view of the percolation theory. Disposable filaments were produced of these materials. Change in their electrical resistivity was measured upon immersion in benzene, toluene, xylene, ethylbenzene and their mixtures. It has been found that studied materials were sensitive to the composition of liquid mixtures of organic solvent. Relationships between the filament response and volumetric fraction of the components were presented. The studied materials have shown promising sensing properties, which suggest their applicability for identification and quantification of multicomponent organic liquids.

How the work of adhesion affects the mechanical properties of silica-filled polymer composites

1994 ◽  
Vol 29 (9) ◽  
pp. 2406-2416 ◽  
Author(s):  
S. W. Shang ◽  
J. W. Williams ◽  
K. -J. M. Söderholm
Keyword(s):  
Mechanical Properties ◽  
Polymer Composites ◽  
Work Of Adhesion ◽  
Filled Polymer
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