欢迎访问润滑与密封官方网站!

咨询热线:020-32385313 32385312 RSS EMAIL-ALERT
合成酯基固体润滑脂的制备及生物降解性能研究
作者:
作者单位:

作者简介:

通讯作者:

中图分类号:

基金项目:


Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
  • |
  • 文章评论
    摘要:

    为减少轮缘与铁轨之间的摩擦,制备以己二酸二异辛酯为基础油的锂基固体润滑脂,对其滴点、锥入度、腐蚀性能、含水量、分油率、抗磨性能和降解性能进行测定,并对结构进行表征。研究结果表明:当异辛醇与己二酸的摩尔比为2.5∶1,带水剂用量为7mL,催化剂用量为0.146g,反应时间为60min时,合成双酯的酯化率最高,达到99.13%。当双酯基础油为81%,稠化剂为14%,反应温度为105℃左右,反应时间为3h,以及添加少量添加剂时,所制得的润滑脂性能最好,其滴点为196.5℃,锥入度为280.4×0.1mm,最大无卡咬负荷为490N。微生物降解实验表明,己二酸二异辛酯基础油和制得的润滑脂均具有一定的生物降解性,降解率分别为78.2%和69.6%。

    Abstract:

    A lithium based solid grease was prepared with diisooctyl adipate as based oil to decrease the wearing between the rim and rail. The drop point,penetration,erosion property,moisture content,points oil rate,anti-wear property and biodegradability as-prepared grease were determined,and its structure characters were characterized. The results show that,when the molar ratio of hexane di-acid and 2-ethyl hexanol is 2.5∶1,the amount of water carrying agent is 7mL,catalyst is 0.146 g and the reaction time is 60min,the highest esterification rate of 99.13 % is reached. The grease with the best performance,whose drop point is 196.5℃,penetration is 280.4×0.1mm,and the maximum non seizure load is 490N,is obtained when the base oil accounts for 81% and thickening agent for 14%,the reaction temperature is controlled at about 105 ℃ for 3h,and a small amount of additives are added. The microbial degradation experiment shows that the di isooctyl adipate and the as prepared grease are biodegradable on a certain extent,the degradation rate is 78.2% and 69.6% separately.

    参考文献
    相似文献
    引证文献
引用本文

刘 洋,祝 超,胡 萍,谭淼淼,潘 濛,黄樟华,史均达.合成酯基固体润滑脂的制备及生物降解性能研究[J].润滑与密封,2014,39(5):87-92.
.[J]. Lubrication Engineering,2014,39(5):87-92.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
  • HTML阅读次数:
  • 引用次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2014-11-25
  • 出版日期: