ẢNH HƯỞNG CỦA THAN CHÌ VÀ MOLIPDEN DISUNFUA TỚI HÌNH THÁI VÀ TÍNH CHỊU MÀI MÒN CỦA VẬT LIỆU COMPOSITE NỀN POLYETYLEN TRỌNG LƯỢNG PHÂN TỬ SIÊU CAO
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Tóm tắt
THE IMPACT OF GRAPHITE AND MOLYBDENUM DISULFIDE ON STRUCTURE AND PROPERTIES OF COMPOSITE MATERIALS BASED ON ULTRA HIGH MOLECULAR WEIGHT-POLYETHYLENE
The effect of various fillers (graphite, MoS2) on the mechanical and tribological properties of ultra high molecular weight polyethylene (UHMW-PE) is studied. The modification of UHMW-PE by graphite or MoS2 leads to a substantially enhance in its tribological properties but not change substantially their mechanical properties. The results of analysis SEM shows that modification UHMW-PE by these fillers leads to the formation of supramolecular spherulitic structure. The friction resistance of UHMW-PE increases about two times with 5% graphite (particle size 2 - 3 μm).
Từ khóa
Ultra high molecular weight polyethylene, tribological, mechanical properties, graphite, molybdenum disulphide
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Tài liệu tham khảo
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