六方氮化硼对食品级复合铝基脂摩擦学性能的影响  

Effect of h-BN on Tribological Properties of Food Grade Composite Aluminum-Based Grease

作　　者：朱忠杰 钱善华 刘森 王俊其 任海栋 卞达 倪自丰 ZHU Zhongjie;QIAN Shanhua;LIU Sen;WANG Junqi;REN Haidong;BIAN Da;NI Zifeng(School of Mechanical Engineering,Jiangnan University,Jiangsu Wuxi 214122,China;Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology,Jiangsu Wuxi 214122,China;Wuxi Beilei New Material Technology Consulting Co,Ltd,Jiangsu Wuxi 214072,China)

机构地区：[1]江南大学机械工程学院,江苏无锡214122 [2]江苏省食品先进制造装备技术重点实验室,江苏无锡214122 [3]无锡钡镭新材料技术咨询有限公司,江苏无锡214072

出　　处：《摩擦学学报(中英文)》2025年第1期140-153,共14页Tribology

基　　金：江苏省食品先进制造装备技术重点实验室自主研究课题(FMZ202204);国家自然科学基金项目(52375184)资助。

摘　　要：为提高食品级复合铝基脂的减摩抗磨性能,将不同含量的六方氮化硼(h-BN)添加到制备的食品级复合铝基脂中,主要开展在25和150℃下h-BN含量对复合铝基脂的流变特性和摩擦学性能的影响研究,并检测与润滑材料接触的人结直肠腺癌细胞(Caco2)存活率.结果表明:制备的复合铝基脂具有良好的理化性能、热稳定性和结构强度,均优于市场通用商品脂(FM222);与原始复合铝基脂相比,在25和150℃下含h-BN的质量分数为3.0%的复合铝基脂摩擦系数分别降低了约17.4%和38.1%;可能缘于不同温度下均能发挥层间滑移的作用,对应摩擦副表面磨损体积降低幅度相近,分别降低了约51.5%和51.4%,均优于FM222的减摩抗磨性能;复合铝基脂、含h-BN的质量分数为3.0%的复合铝基脂和FM222细胞存活率均高于90%,Caco2细胞形态未发生改变,表明3种复合铝基脂均具有良好的安全性.同时,h-BN在摩擦表面发挥的层间滑移和填补修复作用,有效提高了复合铝基脂的摩擦学性能,这将为新型食品级润滑材料研发提供较好的参考.In order to improve the tribological properties of food-grade composite aluminum-based grease,h-BN with different mass fractions were added to the based grease.The study mainly focused on the effects of h-BN with different mass fractions on the rheological properties and tribological properties of the composite aluminum-based greases at the temperatures of 25 and 150℃,and the survival rate of human colon adenocarcinoma cells(Caco2)in contact with the lubricating material.The results showed that the prepared composite aluminum-based grease exhibited excellent physicochemical properties,thermal stability,and structural integrity,all of which were superior to the commercially available grease(FM222).At the temperatures of 25 and 150 C,compared with the based grease,the friction coefficient of the composite aluminum-based grease containing 3.0%h-BN decreased by about 17.4%and 38.1%,respectively.The corresponding wear volume decreased by 51.5%and 51.4%,respectively.At different temperatures,the decrease in wear volume of the rubbing surface was similar,which might be due to the interlayer slips effect that could be exerted.These results also indicated that the anti-friction and anti-wear performance was superior to those of FM222.In addition,the cell survival of the composite aluminum-based grease,the grease containing 3.0%h-BN and FM222 were all above 90%with no observable changes in cell morphology,indicating that all three composite aluminum-based greases possessed the safety.Furthermore,the interlayer slips and repair effects of h-BN between the rubbing surfaces effectively improved the tribological properties of the composite aluminum-based grease.This study provided valuable insights for the development of novel food-grade lubricating materials.

关 键 词：食品级润滑脂 无机二维添加剂 六方氮化硼 细胞存活率 

分 类 号：TH117.1[机械工程—机械设计及理论]