CN108570347A - 一种柴油机用润滑油组合物 - Google Patents

一种柴油机用润滑油组合物 Download PDF

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CN108570347A
CN108570347A CN201810531532.6A CN201810531532A CN108570347A CN 108570347 A CN108570347 A CN 108570347A CN 201810531532 A CN201810531532 A CN 201810531532A CN 108570347 A CN108570347 A CN 108570347A
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diesel engine
lubricating oil
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hindered phenol
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刘俊义
张力
张春风
张伟
李树晓
崔艳斌
李久盛
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Shanxi Lu'an Taihang Lubricating Oil Co ltd
Shanxi Lu'an Coal Based Synthetic Oil Co ltd
Shanghai Advanced Research Institute of CAS
Shanxi Luan Mining Group Co Ltd
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Shanxi Lu'an Taihang Lubricating Oil Co ltd
Shanxi Lu'an Coal Based Synthetic Oil Co ltd
Shanghai Advanced Research Institute of CAS
Shanxi Luan Mining Group Co Ltd
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Abstract

本发明一种柴油机用润滑油组合物,属于润滑油添加技术领域;所要解决的技术问题是提供了一种长换油周期低排放柴油机用润滑油组合物;解决该技术问题采用的技术方案为:一种柴油机用润滑油组合物,包括下述重量百分比的组分:受阻酚抗氧剂0.4‑2.5%,胺类抗氧剂0.9‑2.0%,抗氧减摩多功能添加剂0.8‑3.0%,金属减摩剂0.2‑1.5%,复合剂4.0‑15.0%,余量为基础油;本发明柴油机用润滑油组合物换油周期长、挥发性低,具有优异的稳定性;本发明可广泛应用于柴油机润滑领域。

Description

一种柴油机用润滑油组合物
技术领域
本发明涉及一种柴油机用润滑油组合物,特别涉及一种长换油周期低排放柴油机用润滑油组合物,属于润滑油添加剂技术领域。
背景技术
节能、环保排放和延长换油期是推动汽车工业和内燃机油突飞猛进发展的三大驱动力,汽车发动机新技术的应用对润滑油配方提出了越来越严格的要求:(1)环保要求的提高、节能意识的增强都需要高品质低硫、低灰分的润滑油产品。(2)节能性发动机油的需求增长促使润滑油向高粘度指数和低粘度方向发展。(3)延长换油期和高性能的发动机要求基础油必须具备较低的挥发性、较高的抗氧化性能、热稳定性、以及良好的低温流动性和剪切安定性。
这些对润滑油提出的新要求,除提高润滑油基础油品质和使用更高类别的基础油外,添加剂更需要有较大的改变和提升,如:必须使用低硫、低灰分的添加剂,因为润滑油中99%的硫与灰分均来自添加剂;必须使用抗磨和挤压性能更好的抗磨减摩剂,以弥补更低粘度油品对抗磨减摩的要求;更长的换油期,需要使用多种优质的抗氧剂复合,保证油品具有更优异的抗氧化、抗衰老变质的性能。
当前市场上的优质低硫、低灰分的优质抗氧剂、抗磨减摩剂功效单一,功效均衡、满足长换油周期发动机润滑油的专用复合添加剂为数不多,而且价格极其昂贵。
发明内容
本发明克服现有技术存在的不足,提供了一种柴油机用润滑油组合物。本发明提供的柴油机用润滑油组合物具有很长的使用寿命,同时可极大降低发动机各附件间的摩擦,降低柴油机用润滑油在设备中的使用温度。
本发明以受阻酚抗氧剂、胺类抗氧剂、抗氧减摩多功能添加剂、金属减摩剂为主要组分,通过调整组合物中各组分间的比例及其用量,调制低硫、低灰分、长寿命的复合功能添加剂组合物,并满足API CI-4的10W-X、或15W-X、或20W-X(其中X为30,40,50中的任何一个)规格要求。
为了解决上述技术问题,本发明采用的技术方案为:
一种柴油机用润滑油组合物,包括下述重量百分比的组分:受阻酚抗氧剂0.4-2.5%,胺类抗氧剂0.9-2.0%,抗氧减摩多功能添加剂0.8-3.0%,金属减摩剂0.2-1.5%,复合剂4.0-15.0%,余量为基础油。
优选地,所述柴油机用润滑油组合物包括下述重量百分比的组分:受阻酚抗氧剂0.6-1.2%,胺类抗氧剂1-1.5%,抗氧减摩多功能添加剂0.8-1%,金属减摩剂0.3-0.8%,复合剂4.0-15.0%,基础油81-92%。
所述受阻酚抗氧剂为酯型受阻酚BHC与2,6-二叔丁基含硫双酚两种的混合物,或酯型受阻酚BHC与2,6-二叔丁基对甲酚两种的混合物,或酯型受阻酚BHC与2,6-二叔丁基含硫双酚混合物和2,6-二叔丁基对甲酚三种的混合物。
所述胺类抗氧剂为二烷基化二苯胺与辛基二苯胺两种的混合物。
所述抗氧减摩多功能添加剂为亚甲基双二丁基二硫代氨基甲酸酯、有机硼酸酯中的一种或二种的混合物。
所述金属减摩剂为纳米铜抗磨剂、钼胺络合物中的一种或二种的混合物。
所述基础油为API III类基础油、酯类油、PAO合成油的两种或三种的混合物。
所述PAO合成油为PAO6、PAO8、PAO10、PAO40、PAO65、PAO100中一种或两种以上的组合,所述酯类油包括双酯、饱和多元醇酯、复酯等中的一种或两种。
本发明与现有技术相比具有以下有益效果。
1、本发明酯型受阻酚抗氧剂克服了传统抗氧剂易挥发的缺陷,较好改善高温性能,有效延长了柴油机用润滑油的换油周期5-9倍,换油周期达到6万公里以上。
2、本发明抗氧减摩多功能添加剂和金属减磨剂的使用极大降低了发动机各摩擦副间的摩擦,降低了柴油机用润滑油在设备中的使用温度,节油率达1.0%以上,同时有效降低了废气排放,避免对尾气后处理设备造成不利影响。
3、本发明力求使各功能添加剂除了充分发挥其自身的性能优点外,尽可能使各功能添加剂组分间产生较强的“协合效应”,避免出现“对抗效应”,从而使该组合物的各项性能达到最佳,同时控制油品的硫、磷含量,满足发动机各项使用性能的要求,在国内处于领先水平。
具体实施方式
下面结合具体实施例对本发明作进一步说明。应当理解,此处所描述的具体实施例,仅仅用于解释本发明,并不用于限定本发明。
实施例1
一种柴油机用润滑油组合物,各组分及相应重量百分比如下:
酯型受阻酚BHC 0.6%、2,6-二叔丁基含硫双酚0.6%、二烷基化二苯胺0.6%、辛基二苯胺0.4%、亚甲基双二丁基二硫代氨基甲酸酯0.5%、有机硼酸酯0.3%、纳米铜抗磨剂0.5%、钼胺络合物0.3%、复合剂8.4%、PAO合成油50%、美孚(A51)酯类油37.8%。
实施例2
一种柴油机用润滑油组合物,各组分及相应重量百分比如下:
酯型受阻酚BHC 0.5%、2,6-二叔丁基含硫双酚0.2%、2,6-二叔丁基对甲酚0.4%、二烷基化二苯胺0.6%、辛基二苯胺0.3%、亚甲基双二丁基二硫代氨基甲酸酯0.5%、有机硼酸酯0.6%、钼胺络合物0.8、复合剂8.1%、4cst API III类基础油50%、美孚(A51)酯类油38%。
实施例3
一种柴油机用润滑油组合物,各组分及相应重量百分比如下:
酯型受阻酚BHC 0.6%、2,6-二叔丁基对甲酚0.6%、二烷基化二苯胺0.4%、辛基二苯胺1.2%、亚甲基双二丁基二硫代氨基甲酸酯0.9%、纳米铜抗磨剂0.7%、钼胺络合物0.4%、复合剂8.2%、4cst API III类基础油50.0%、美孚(A51)酯类油37.0%。
实施例4
一种柴油机用润滑油组合物,各组分及相应重量百分比如下:
酯型受阻酚BHC 0.5%、2,6-二叔丁基含硫双酚0.2%、2,6-二叔丁基对甲酚0.4%、二烷基化二苯胺0.5%、辛基二苯胺0.5%、亚甲基双二丁基二硫代氨基甲酸酯0.8%、有机硼酸酯0.5%、纳米铜抗磨剂0.7%、钼胺络合物0.4%、复合剂7.9%、PAO合成油20%、4cst API III类基础油30%、美孚(A51)酯类油37.6%。
实施例5
一种柴油机用润滑油组合物,各组分及相应重量百分比如下:
酯型受阻酚BHC 0.1%、2,6-二叔丁基含硫双酚0.3%、二烷基化二苯胺0.5%、辛基二苯胺0.4%、亚甲基双二丁基二硫代氨基甲酸酯0.5%、有机硼酸酯0.3%、纳米铜抗磨剂0.1%、钼胺络合物0.1%、复合剂4.0%、PAO合成油20.0%、4cst API III类基础油30.0%、美孚(A51)酯类油43.7%。
实施例6
一种柴油机用润滑油组合物,各组分及相应重量百分比如下:
酯型受阻酚BHC 1.5%、2,6-二叔丁基对甲酚1%、二烷基化二苯胺0.5%、辛基二苯胺1.5%、亚甲基双二丁基二硫代氨基甲酸酯2.0%、有机硼酸酯1.0%、纳米铜抗磨剂0.7%、钼胺络合物0.8%、复合剂15.0%、PAO合成油20.0%、美孚(A51)酯类油56.0%。
实施例7
一种柴油机用润滑油组合物,各组分及相应重量百分比如下:
酯型受阻酚BHC 0.5%、2,6-二叔丁基含硫双酚0.1%、二烷基化二苯胺0.3%、辛基二苯胺0.7%、亚甲基双二丁基二硫代氨基甲酸酯0.2%、有机硼酸酯0.6%、纳米铜抗磨剂0.1%、钼胺络合物0.2%、复合剂4%、PAO合成油20.0%、4cst API III类基础油30.0%、美孚(A51)酯类油43.3%。
实施例8
一种柴油机用润滑油组合物,各组分及相应重量百分比如下:
酯型受阻酚BHC 0.5%、2,6-二叔丁基含硫双酚0.7%、二烷基化二苯胺0.5%、辛基二苯胺1.0%、亚甲基双二丁基二硫代氨基甲酸酯0.8%、有机硼酸酯0.2%、纳米铜抗磨剂0.7%、钼胺络合物0.1%、复合剂14.5%、PAO合成油20.0%、4cst API III类基础油30.0%、美孚(A51)酯类油31.0%。
上述实施例1-8中所用的复合剂为巴斯夫IRGALUBE ML2030A润滑油复合剂。
配制油品时,将各个实施例中的组分混合充分搅拌至少2小时,至组合物混合均匀,即可得到CI-4发动机油产品。选择不同粘度的基础油组分,即可调制10W-40、10W-30、15W-40、30、40等不同粘度级别的CI-4+发动机油产品。
对比例:
一种柴油机用润滑油组合物,各组分及相应重量百分比如下:
复合功能添加剂12%、4cst API III类基础油50%、余量为美孚(A51)酯类油。
配制油品时,上述各组分充分搅拌至少2小时,至组合物混合均匀。
本发明采用了板式成焦器试验、热管氧化试验、PDSC氧化诱导期模拟来确定基础油和各种添加剂的加入量,这些试验有效的模拟了润滑油的实际工作工况,性能评价见表1。
表1
从表1中可以看出本发明的柴油机用润滑油综合性能高于对比例中的柴油机用润滑油,具有更高的稳定性和更长的使用周期,符合节能、环保的要求。
将上述实施例1、4中所得的柴油机用润滑油分别经过两辆不同型号的重卡(中国重汽SITRAK系列和驰久重卡)分别进行的100000公里不同路况实际行车试验,结果显示:车辆运行平稳,发动机噪音小,各部件磨损小,油温低,换油期长达60000-70000公里,路况优良时可达72000公里,平均柴油机用润滑油节油率1-1.5%,测定尾气成分:CO,NOx,SOx排放物减少55-60%,达到保护环境,节能减排的目的。
本发明可用其他的不违背本发明的精神或主要特征的具体形式来概述。因此,无论从那一点来看,本发明的上述实施方案都只能认为是对本发明的说明而不能限制发明,权利要求书指出了本发明的范围,而上述的说明并未指出本发明的范围,因此,在与本发明的权利要求书相当的含义和范围内的任何变化,都应认为是包括在权利要求书的范围内。

Claims (7)

1.一种柴油机用润滑油组合物,其特征在于,包括下述重量百分比的组分:受阻酚抗氧剂0.4-2.5%,胺类抗氧剂0.9-2.0%,抗氧减摩多功能添加剂0.8-3.0%,金属减摩剂0.2-1.5%,复合剂4.0-15.0%,余量为基础油。
2.根据权利要求1所述的一种柴油机用润滑油组合物,其特征在于,所述柴油机用润滑油组合物包括下述重量百分比的组分:受阻酚抗氧剂0.6-1.2%,胺类抗氧剂1-1.5%,抗氧减摩多功能添加剂0.8-1%,金属减摩剂0.3-0.8%,复合剂4.0-15.0%,基础油81-92%。
3.根据权利要求1所述的一种柴油机用润滑油组合物,其特征在于,所述受阻酚抗氧剂为酯型受阻酚BHC与2,6-二叔丁基含硫双酚两种的混合物,或为酯型受阻酚BHC与2,6-二叔丁基对甲酚两种的混合物,或为酯型受阻酚BHC与2,6-二叔丁基含硫双酚混合物和2,6-二叔丁基对甲酚三种的混合物。
4.根据权利要求1所述的一种柴油机用润滑油组合物,其特征在于,所述胺类抗氧剂为二烷基化二苯胺与辛基二苯胺两种的混合物。
5.根据权利要求1所述的一种柴油机用润滑油组合物,其特征在于,所述抗氧减摩多功能添加剂为亚甲基双二丁基二硫代氨基甲酸酯、有机硼酸酯中的一种或二种的混合物。
6.根据权利要求1所述的一种柴油机用润滑油组合物,其特征在于,所述金属减摩剂为纳米铜抗磨剂、钼胺络合物中的一种或二种的混合物。
7.根据权利要求1所述的一种柴油机用润滑油组合物,其特征在于,所述基础油为APIIII类基础油、酯类油、PAO合成油的两种或三种的混合物。
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