CAJ | 학술논문

采用16种无机化合物对UHMWPE进行改性，在载荷98 N、转速60.18 mm/s、运动半径0.5 cm和干摩擦条件下，在UMT-3型微摩擦试验机上，测定纯UHMWPE及改性UHMWPE与不锈钢球（3 mm 100Cr6钢球）对摩60 min时摩擦因数的变化，测定其磨痕宽度和深度，并对磨损表面进行XRD 分析。结果发现：10％和5％二硫化钨、15％氧化锆及5％氮化铝改性UHMWPE的平均摩擦因数较小，它们适于干摩擦条件下与钢配副；5％硫化银、10％氧化铝及15％氮化硅改性UHMWPE的磨痕宽度和深度明显较纯UHMWPE的小，其磨损面和未磨损面的XRD分析结果一致，说明在轻微磨损过程中并未发生晶型改变。
채용16충무궤화합물대UHMWPE진행개성，재재하98 N、전속60.18 mm/s、운동반경0.5 cm화간마찰조건하，재UMT-3형미마찰시험궤상，측정순UHMWPE급개성UHMWPE여불수강구（3 mm 100Cr6강구）대마60 min시마찰인수적변화，측정기마흔관도화심도，병대마손표면진행XRD 분석。결과발현：10％화5％이류화오、15％양화고급5％담화려개성UHMWPE적평균마찰인수교소，타문괄우간마찰조건하여강배부；5％류화은、10％양화려급15％담화규개성UHMWPE적마흔관도화심도명현교순UHMWPE적소，기마손면화미마손면적XRD분석결과일치，설명재경미마손과정중병미발생정형개변。
UHMWPE was modified with 16 inorganic compounds as additives.Friction coefficient of pure and modified UHMWPE was investigated by an UMT-3 microtribometer against a3 mm 100Cr6 steel ball which was the upper counter-mating specimen,under load of 98 N,with rotation rate of 60.18 mm/s and rotating radius of 0.5 cm for 60 min in dry friction,respectively.Width and depth of wear scars were determined and the analysis of XRD of worn surfaces wais also observed.Results show that average friction coefficient of modified UHMWPE with 5% and 10% WS2 ,15% ZrO2 and 5% AlN are less,and they are suitable for dry friction condition and steel pairs.Width and depth of wear scars,friction of modified UHMWPE with 5% Ag2S,10%Al2O3 and 15% N4Si3 are obviously less than that of pure UHMWPE,their XRD patterns between worn and unworn surfaces are same,and it is suggested that their crystal types are not altered dur-ing minor wear process.