辐照交联GO/UHMWPE复合材料在人工海水润滑介质下的摩擦学性能研究  

Research on Tribology Property of Cross-linked GO/UHMWPE Composites under the Lubrication of Artificial Seawater

作　　者：段为朋 冒浴沂 庞文超 厉相宝 李冰月 倪自丰 DUAN Wei-peng;MAO Yu-yi;PANG Wen-chao;LI Xiang-bao;LI Bing-yue;NI Zi-feng(Additive Manufacturing Products Supervision and Inspection Center of Jiangsu Province, Institution of Supervision and Testing on Product Quality,Wuxi 224201,China;School of Mechatronic Engineering,Qilu Institute of Technology,Jinan 250200,China;Wuxi machinery and electron higher professional and technical school,Wuxi 214028,China;School of Mechanical Engineering,Jiangnan University,Wuxi 214222,China)

机构地区：[1]无锡市产品质量监督检验院国家增材制造产品质量监督检验中心,江苏无锡214101 [2]齐鲁理工学院机械与车辆工程学院,山东济南250200 [3]无锡机电高等职业技术学校,江苏无锡214028 [4]江南大学机械工程学院,江苏无锡214122

出　　处：《塑料工业》2018年第12期114-118,共5页China Plastics Industry

基　　金：国家自然科学基金(51305166);山东省高校科研计划项目(J18KA046)

摘　　要：为改善超高分子量聚乙烯(UHMWPE)在海水润滑介质下的耐磨损性能,采用氧化石墨烯(GO)填充与辐照交联对UHMWPE进行改性处理。利用摩擦磨损试验机研究了辐照前后UHMWPE与GO/UHMWPE复合材料在人工海水润滑介质下的摩擦学性能,利用扫描电子显微镜(SEM)与三维表面轮廓仪扫描试样磨痕表面形貌,计算其磨损率,并分析了其摩擦磨损机理。结果表明,在人工海水润滑介质下,GO填充与辐照交联改性处理均略微增加了UHMWPE的摩擦因数,降低了磨损率;二者共同使用可以协同增强UHMWPE的耐磨性能,降低复合材料的摩擦因数与磨损率; GO填充显著提高了UHMWPE的抗磨粒磨损与抗疲劳磨损性能;辐照交联改性处理进一步提高了GO/UHMWPE复合材料的抗磨粒磨损性能。To improve its wear resistance under seawater lubrication medium,ultra high molecular weight polyethylene (UHMWPE)was modified with the filler of graphene oxide (GO)and irradiation crosslinked with γ-ray.The tribology properties of UHMWPE and GO/UHMWPE composites before/after irradiation in artificial seawater were studied.The surface morphology of wear was scanned by scanning electron microscopy (SEM)and profilometer,the wear rate of specimen was calculated and the mechanism of tribology was analyzed.The results show that under the artificial sea water lubrication medium,the friction coefficient of UHMWPE is slightly increased by GO filling and irradiation crosslinking modification,and the wear rate is reduced.The combined using of two methods could synergistically enhance the wear resistance of UHMWPE,and reduce the friction coefficient and wear rate of the composites.The abrasive wear and fatigue wear properties of UHMWPE could be significantly improved with the filling of GO and the performance of abrasive wear could be further improved by radiation cross-linking modification.

关 键 词：超高分子量聚乙烯 氧化石墨烯 辐照交联 人工海水润滑 摩擦学性能 

分 类 号：TQ320.7[化学工程—合成树脂塑料工业]