Branched polyelectrolyte grafted carbon dots as the high-performance friction-reducing and antiwear additives of polyethylene glycol
作者: Zihao MouBaogang WangHongsheng LuHongping QuanZhiyu Huang
作者单位: 1College of Chemistry and Chemical Engineering, Southwest Petroleum University, Chengdu, 610500, PR China
2Oil & Gas Field Applied Chemistry Key Laboratory of Sichuan Province, Chengdu, 610500, PR China
刊名: Carbon, 2019, Vol.149 , pp.594-603
来源数据库: Elsevier Journal
DOI: 10.1016/j.carbon.2019.04.066
原始语种摘要: Abstract(#br)Branched polyethyleneimine (PEI) grafted carbon dots (CDs-PEI 0.6-10k ) were facile synthesized by hydrothermal treatments of citric acid and PEI with various molecular weights of 0.6, 1.8 and 10 k. With the aid of protonation and anion exchange (between Cl − and bistrifluoromethanesulfonimide abbreviated as NTf 2 - ) processes in aqueous phase, the branched polyelectrolyte grafted CDs (CDs-PEI 0.6-10k -NTf 2 ) derived from CDs-PEI 0.6-10k were gained as the precipitates. The tribological properties of CDs-PEI 0.6-10k -NTf 2 as the lubricant additives of polyethylene glycol (PEG200) were evaluated. The CDs-PEI 0.6-10k -NTf 2 exhibited superb friction-reducing and antiwear performances followed the sequence: CDs-PEI 10k -NTf 2 > CDs-PEI 1.8k -NTf 2 > CDs-PEI 0.6k -NTf 2 ....
全文获取路径: Elsevier  (合作)
影响因子:5.868 (2012)

  • polyethylene 聚乙烯
  • antiwear 抗磨损
  • additives 附加剂
  • glycol 甘醇
  • reducing 还原
  • friction 摩擦
  • performance 性能
  • carbon