Journal
INTERNATIONAL JOURNAL OF POLYMER ANALYSIS AND CHARACTERIZATION
Volume 15, Issue 7, Pages 438-449Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/1023666X.2010.510110
Keywords
Carbon nanotube; Chemical dissolution; Nanocomposite; Physical characterization; Polyethylene; Solid state mixing; Static mechanical tests
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Multiwalled carbon nanotubes, CNTs (0.3-1.0wt.%), were incorporated in the ultra high molecular weight polyethylene (UHMWPE) matrix by solid state dry mixing in order to avoid the use of high temperature, solvents, and materials pretreatments. Physical, morphological, and mechanical tests were performed on both the pristine materials and the nanocomposites. Experimental results showed that the CNTs are homogeneously dispersed into the polymeric matrix but no close interaction occurs between the two components. In fact, no appreciable mechanical or thermal improvement was observed. Instead, a bi-dimensional CNT conductive network was formed within the polymeric matrix, which increased its crystalline order.
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