Schiff碱铜(Ⅱ)配合物微纳米粉体改性UHMWPE初探

摘要

制备出稳定分散的乙二胺缩水杨醛Schiff碱铜(Ⅱ)配合物微纳米粉体,并用扫描电镜和红外光谱鉴定其结构和粒径.在25％(体积分数)小牛血清去离子水溶液边界润滑条件下,以5％(质量分数)微纳米乙二胺缩水杨醛Schiff碱铜(Ⅱ)配合物作为添加剂改性UHMWPE,与Ti6A14V配对进行往复摩擦磨损试验,并与其微米级粉体改性UHMWPE的摩擦学性能进行对比.结果表明,在改性添加剂质量分数为5％时,对于减少改性UHMWPE自身和对偶件Ti6Al4V的磨损和降低摩擦副的摩擦,乙二胺缩水杨醛Schiff碱铜(Ⅱ)配合物微纳米粉体比其微米级粉体更加有效.%A kind of stable dispersed micro-nano-powder of copper (Ⅱ) complex with ethlenediamion-N, N' -bis ( sali-cylidene) was prepared,and its structure and partial size were identified by IR and SEM. Reciprocating friction and wear behaviors of UHMWPE modified with 5% ( mass fraction) of the micro-nano-powder of copper (II) complex with ethlenediamion-N, N' -bis (salicylidene) was investigated and compared with the one with micro size by pairing up with Ti6A14V under the condition of boundary lubrication with 25% (volume fration) calf serum deionized water solution. Results showthat the micro-nano-powder of copper (Ⅱ) complex with ethlenediamion-N, N' -bis ( salicylidene) is more effective for improving anti-wear property of the modified UHMWPE itself and the counterpart ( Ti6A14V) and for reducing friction of modified UHMWPE/Ti6A14V than the one with micro size when additive amount is 5% (mass fraction).