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Study on Morphology, Crystallization and Electrical Properties of Vapor-Grown Carbon Fiber Filled Multi-Phase Polymer Blends

Author: WuHongFei
Tutor: ZhangCheng
School: Zhejiang University of Technology
Course: Materials Science
Keywords: carbon fiber phase morphology non-isothermal crystallization melting kinetics
CLC: TB332
Type: Master's thesis
Year: 2006
Downloads: 63
Quote: 0
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Abstract


In this dissertation, the effects of VGCF on morphology, non-isothermal crystallization, melting behaviors and electrical properties of Vapor-Grown Carbon Fiber(VGCF) filled HDPE/iPP, HDPE/PMMA and PVDF/PMMA polymer blends are studied. The results show that the percolation threshold of VGCF filled HDPE/iPP, HDPE/PMMA and PVDF/PMMA polymer blends are 1.5phr, 1.25phr and 5phr VGCF content, respectively. It is found that VGCF is preferentially located in the HDPE phase, resulting in double percolation phenomenon for VGCF/HDPE/iPP and VGCF/HDPE/PMMA composites. The selective location of VGCF increases the filler concentration of filler-rich phase, and conductive network can be formed in a lower percolation threshold.For the unfilled HDPE/iPP blends, the crystallization peak

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CLC: > Industrial Technology > General industrial technology > Materials science and engineering > Composite materials > Non-metallic composite materials
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