Anti-oxidation property of 3,7-di-iso-octyl-phenothiazine in lubricants

WANG Hui; WU Zuwang; LI Chuncheng; WU Fuli; SUN Jie

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Anti-oxidation property of 3,7-di-iso-octyl-phenothiazine in lubricants

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- Anti-oxidation property of 3,7-di-iso-octyl-phenothiazine in lubricants
- CIESC Journal Issue 1, (2007)
- 作者机构：
  
  1. 大连理工大学精细化工国家重点实验室
  2. 中国石油大连润滑油研发中心
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Online First：05 January 2007，
  
  Published：05 January 2007
- 稿件说明：
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WANG Hui, WU Zuwang, LI Chuncheng, et al. Anti-oxidation property of 3,7-di-iso-octyl-phenothiazine in lubricants[J]. CIESC Journal, 2007, (1).
DOI：

WANG Hui, WU Zuwang, LI Chuncheng, et al. Anti-oxidation property of 3,7-di-iso-octyl-phenothiazine in lubricants[J]. CIESC Journal, 2007, (1). DOI：

摘要

采用旋转氧弹（RPVOT）、压力差示扫描量热仪（PDSC）和润滑油老化特性等试验方法对比了3

7-二异辛基吩噻嗪和4

4’-二异辛基二苯胺在溶剂精制基础油、加氢基础油和聚α烯烃（PAO）中的抗氧化性能，并考察了二者的复配效应，结果表明3

7-二异辛基吩噻嗪延长氧化诱导期和抑制酸值增长的能力优于其母体4

4’-二异辛基二苯胺，二者复配具有明显的协同效应，同时发现基础油的组成对抗氧剂的作用有较大的影响。

Abstract

The anti-oxidation performance of 3

7-di-iso-octyl-phenothiazine was measured in group Ⅰ

Ⅱ and Ⅳ base oils by rotating pressure vessel oxidation testing(RPVOT)

pressure differential scanning calorimetry(PDSC)and aging test

and its synergistic effect with 4

4′-di-iso-octyl-diphenylamine was examined. The results indicated that 3

7-di-iso-octyl-phenothiazine showed longer oxidation induction period and lower acid number increase than 4

4′-di-iso-octyl-diphenylamine

and their notable synergistic effect was observed. It was found that the anti-oxidation characteristics of the above-mentioned antioxidants were strongly affected by the composition of the corresponding base oil.

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