材料科学
复合材料
润湿
流变学
碳纳米管
炭黑
聚乙烯
渗流阈值
聚合物
填料(材料)
超高分子量聚乙烯
纳米颗粒
粒子(生态学)
渗透(认知心理学)
纳米技术
电阻率和电导率
天然橡胶
神经科学
工程类
地质学
电气工程
海洋学
生物
作者
Nadka Tzankova Dintcheva,Elisabetta Morici,Rossella Arrigo,Giulia Zerillo,Valeria Marona,Maurizio Sansotera,Luca Magagnin,W. Navarrini
标识
DOI:10.1016/j.compositesb.2016.03.095
摘要
Ultra High Molecular Weight Polyethylene (UHMWPE) based composites filled with carbon nanotubes (CNTs) and carbon black (CB) modified by perfluoropolyethers (PFPE) have been formulated. All composites show a segregated morphology with nanofillers selectively localized at the polymer particle–particle interface. The composites rheological properties have been deeply investigated: the PFPE functionalities linked on CNTs facilitate the semi-3D nanofillers network formation in the composites that show a solid-like behaviour even at lower investigated filler contents, reaching the rheological percolation threshold at lower nanofiller content than bare CNTs filled composites. For composites containing CB, the presence of PFPE is useful to prevent the CB re-aggregation but does not significantly affect the rheological behaviour. Finally, the UHMWPE-based composites containing CNTs-PFPE and CB-PFPE show tunable wettability, due to the inherent hydrophobicity of PFPE chains.
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