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EffectofMetalConcentrationonSomePhysical Properties of Polypropylene-Nickel Composites | ||
| Journal of College of Education | ||
| Article 1, Volume 0, Issue 3, 2017, Pages 1067-1087 | ||
| Author | ||
| Ghassan Adnan Naeem | ||
| Abstract | ||
| Metal-polymer composites based on polypropylene (PP) blend as matrix and dispersed nickel (Ni) as filler have been prepared by hot press, and their electrical propertieq thermal ion?uctivity and- hardness have been investigated. The -effect of filler content on the above properties was studied' The results show that the value of thi electrical resistivity of (PPilD ;;;ses rapidly over several orders of magnitude when the critical content of filler @, (percolation threshold) is reached. The dielectric constant found to increase slowly up to i the percolation concentration and beyond it a sudden increase i" iil value is observed. The thermal conductivity increases ,,noo.r,rywithincreasingtheconcentrationofthenickelfiller. Hardness ir.r"u.., *itli increase in metal concentration' but beyond @, it becomes almost constant' | ||
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