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首页> 外文期刊>International journal of nanomechanics science and technology >STRUCTURE AND PROPERTIES OF ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE FILLED WITH TUNGSTEN BORIDE AND CARBON BLACK
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STRUCTURE AND PROPERTIES OF ULTRAHIGH MOLECULAR WEIGHT POLYETHYLENE FILLED WITH TUNGSTEN BORIDE AND CARBON BLACK

机译：硼钨和碳黑填充超高分子量聚乙烯的结构与性能

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摘要

Ultrahigh molecular weight polyethylene (UHMWPE)-based composites filled with tungsten boride W_2B_5 and carbon black were obtained by ball milling with subsequent consolidation by hot isostatic pressing. The structure, mechanical properties, thermal conductivity, and thermal expansion of the composites were investigated. It was shown that ball milling results in the formation of a composite structure with nearly homogeneous distribution of inorganic fillers in the polymer matrix. Composite samples possess high mechanical properties that are kept even at elevated temperatures. The experimental density of composites agrees well with the theoretical value, which is an evidence of nearly the absence of pores. The thermal conductivity of composites was obtained to be 3.5-4.5 times higher than that for a pure UHMWPE, whereas the thermal expansion coefficient was obtained to be 1.5-2 times less than for a pure UHMWPE, such properties seem to be advanced for possible application of composites.
机译：通过球磨并随后通过热等静压固结，获得了填充有硼化钨W_2B_5和炭黑的超高分子量聚乙烯（UHMWPE）基复合材料。研究了复合材料的结构，力学性能，导热系数和热膨胀。结果表明，球磨导致形成复合结构，其中无机填料在聚合物基体中的分布几乎均匀。复合材料样品具有很高的机械性能，即使在高温下也能保持这种性能。复合材料的实验密度与理论值非常吻合，这几乎表明没有孔。复合材料的热导率比纯UHMWPE高3.5-4.5倍，而热膨胀系数比纯UHMWPE低1.5-2倍，这种性能似乎对于可能的应用有所提高复合材料。

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