精细石油化工
精細石油化工
정세석유화공
SPECIALITY PETROCHEMICALS
2009年
6期
30-33
,共4页
胡建强%朱焕勤%孙元宝%费逸伟
鬍建彊%硃煥勤%孫元寶%費逸偉
호건강%주환근%손원보%비일위
二烷基二硫代氨基甲酸锡%对,对二辛基二苯胺%合成润滑油%季戊四醇酯%聚-α-烯烃%协同效应
二烷基二硫代氨基甲痠錫%對,對二辛基二苯胺%閤成潤滑油%季戊四醇酯%聚-α-烯烴%協同效應
이완기이류대안기갑산석%대,대이신기이분알%합성윤활유%계무사순지%취-α-희경%협동효응
tin dialkyldithiocarbamate%p,p'-dioetyldiphenylamine%synthetic lubricant%pentaerythritol ester%polyalphaolefin%synergistic effect
以差示扫描量热法(DSC)和薄层油膜微氧化实验(TMOT)分别考察了二烷基二硫代氨基甲酸锡(SnD-DC)和芳胺抗氧剂对,对二辛基二苯胺(DODPA)在季戊四醇酯和聚-α-烯烃合成润滑油中的热氧化安定性,并以红外光谱跟踪考察了润滑油在氧化过程中结构组分的变化情况.DSC氧化实验结果表明,在含DODPA的季戊四醇酯中加入SnDDC,可明显提高润滑油的起始氧化温度和氧化诱导时间,二者表现出良好的抗氧协同效应.TMOT实验结果表明,SnDDC和DODPA在聚-α-烯烃中复配后,可明显降低氧化油样的蒸发损失和红外面积比值,具有良好的抗氧协同性能.
以差示掃描量熱法(DSC)和薄層油膜微氧化實驗(TMOT)分彆攷察瞭二烷基二硫代氨基甲痠錫(SnD-DC)和芳胺抗氧劑對,對二辛基二苯胺(DODPA)在季戊四醇酯和聚-α-烯烴閤成潤滑油中的熱氧化安定性,併以紅外光譜跟蹤攷察瞭潤滑油在氧化過程中結構組分的變化情況.DSC氧化實驗結果錶明,在含DODPA的季戊四醇酯中加入SnDDC,可明顯提高潤滑油的起始氧化溫度和氧化誘導時間,二者錶現齣良好的抗氧協同效應.TMOT實驗結果錶明,SnDDC和DODPA在聚-α-烯烴中複配後,可明顯降低氧化油樣的蒸髮損失和紅外麵積比值,具有良好的抗氧協同性能.
이차시소묘량열법(DSC)화박층유막미양화실험(TMOT)분별고찰료이완기이류대안기갑산석(SnD-DC)화방알항양제대,대이신기이분알(DODPA)재계무사순지화취-α-희경합성윤활유중적열양화안정성,병이홍외광보근종고찰료윤활유재양화과정중결구조분적변화정황.DSC양화실험결과표명,재함DODPA적계무사순지중가입SnDDC,가명현제고윤활유적기시양화온도화양화유도시간,이자표현출량호적항양협동효응.TMOT실험결과표명,SnDDC화DODPA재취-α-희경중복배후,가명현강저양화유양적증발손실화홍외면적비치,구유량호적항양협동성능.
Differential scanning calorimetry (DSC) and thin film micro oxidation test (TMOT) were employed to evaluate the antioxidation properties of tin dialkyldithiocarbamate (SnDDC) and p,p'-dioctyldiphenylamine (DODPA) antioxidant in pentaerythritol ester (PE) or polyalphaolefin synthetic lubricant (PAO). The chemical structures were identified by fourier transform infrared spectroscopy (FTIR). DSC results showed that incipient oxidation temperature and oxidation induction time of DODPA-containing PE were improved significantly by SnDDC addition; SnDDC had a good oxidative synergism with DODPA antioxidant. TMOT results indicated that the combination of SnDDC and DODPA in polyalphaolefin can also effectively reduce the weight lost, carbonyl peak square index and deposits of oxidized oils.
