CN107227195B - 柴油发动机机油及其制备方法 - Google Patents
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Abstract
本发明公开了一种柴油发动机机油及其制备方法,柴油发动机机油含有的组分及各组分质量百分比如下:降凝剂:1.6%~2%;粘度指数改进剂:2%~3%;复合抗氧剂:5%~7%;所述复合抗氧剂中包含有屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂;碱性清净剂:11%~13%;抗氧抗腐剂:2%~3%;抗磨剂:1.5%~3%;分散剂:3~5%;余量为基础油,总计100%。本发明具有合适且相对较高的碱值,抗酸性腐蚀能力强,而且具有良好的抗磨性和抗腐蚀性,良好的高温清净性和抗氧化性能。
Description
技术领域
本发明涉及一种柴油发动机机油及其制备方法。
背景技术
目前,作为世界上最大的发展中国家,中国的三大产业比重虽不平衡但各自的总量仍然巨大,这也对润滑油行业提出了多重要求。一个显著的例子是,随着中国汽车保有量的快速增加,汽车后市场规模也随之扩大,车用油需求量也在逐步增高。
未来10年中,亚太地区润滑油需求量将达到1550万吨,而中国就将占该地区需求量的40%。到2020年,中国市场的润滑油需求将会翻一番,消费量将可能超过美国。国内对车用油需求的高速增长和车用油高档化趋势将推动车用润滑油行业进入快速发展期。在车用润滑油需求量逐年上升的同时,用油档次也将实现跨越式发展,高档油品直接与国际接轨。未来润滑油行业发展过程中,与节能、高效、高端化的内燃机油发展趋势相适应,需要高性能基础油、高品质添加剂的不断研究与使用,这样才能满足高品质内燃机发展的需求。
发明内容
本发明所要解决的技术问题是克服现有技术的缺陷,提供一种柴油发动机机油,它具有合适且相对较高的碱值,抗酸性腐蚀能力强,而且具有良好的抗磨性和抗腐蚀性,良好的高温清净性和抗氧化性能。
为了解决以上技术问题,本发明的技术方案是:一种柴油发动机机油,它含有的组分及各组分质量百分比如下:
降凝剂:1.6%~2%;
粘度指数改进剂:2%~3%;
复合抗氧剂:5%~7%;所述复合抗氧剂中包含有屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂;
碱性清净剂:11%~13%;
抗氧抗腐剂:2%~3%;
抗磨剂:1.5%~3%;
分散剂:3~5%;
余量为基础油,总计100%。
进一步,所述基础油为异构加氢窄馏分基础油。
进一步,所述降凝剂为聚甲基丙烯酸酯。
进一步,所述粘度指数改进剂为乙烯丙烯共聚物。
进一步,所述抗磨剂为二烷基二硫代磷酸硫化氧钼。
进一步,所述分散剂为聚异丁烯双丁二酰亚胺。
进一步,复合抗氧剂中的屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂的质量比为(2~3):(2~5)。
进一步,所述碱性清净剂为高碱值烷基水杨酸钙和高碱值硫化烷基酚钙的混合物;其中,各组分按质量比为(2~4):(3~5)。
进一步,所述抗氧抗腐剂为硫磷双辛基碱性锌盐和硫磷仲醇基锌盐的复合混合物,各组分质量比为(2~3):(4~5)。
本发明还提供了一种柴油发动机机油的制备方法,方法的步骤中含有:
(a)按照各组分质量百分比备料;
(b)将基础油投入调配釜中,进行搅拌,并加热至50℃~60℃,60分钟~80分钟后测量其理化指标,根据测量结果调整基础油;
(c)然后将降凝剂、粘度指数改进剂、复合抗氧剂、碱性清净剂、抗氧抗腐剂、抗磨剂和分散剂进行复合,并投入调配釜,充分混合搅拌5~6小时,得到成品。
采用了上述技术方案后,本柴油发动机机油适用于大功率增压及自吸式柴油发动机及要求使用CF-4级别的柴油发动机,如潍柴、玉柴、锡柴等满足国Ⅱ(欧Ⅱ)要求的柴油发动机的润滑,本发明的柴油发动机机油碱值保持性好,抗酸性腐蚀能力强,优秀的高温稳定性、抗氧化性和清净分散性能,确保各种燃料状况下的发动机清洁,减少发动机高温积碳及低温油泥的生成,有效防止活塞环粘结;较强的油膜厚度保持性,高温条件下减少设备磨损,能够有效延长发动机运转寿命;合理的配方体系有效地降低机油消耗量,特别适用于燃料复杂(如硫含量较高)、低速大扭矩输出工况的发动机,如发电机组、推土机、挖掘机、采矿设备、装甲运输车辆等军用或民用柴油发动机。
具体实施方式
为了使本发明的内容更容易被清楚地理解,下面根据具体实施例,对本发明作进一步详细的说明。
实施例一
一种柴油发动机机油,它含有的组分及各组分质量百分比如下:
降凝剂:1.6%;
粘度指数改进剂:2%;
复合抗氧剂:5%;所述复合抗氧剂中包含有屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂;
碱性清净剂:11%;
抗氧抗腐剂:2%;
抗磨剂:1.5%;
分散剂:3%;
余量为基础油,总计100%。
所述基础油为异构加氢窄馏分基础油。
所述降凝剂为聚甲基丙烯酸酯。
所述粘度指数改进剂为乙烯丙烯共聚物。
所述抗磨剂为二烷基二硫代磷酸硫化氧钼。
所述分散剂为聚异丁烯双丁二酰亚胺。
复合抗氧剂中的屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂的质量比为2:5。
所述碱性清净剂为高碱值烷基水杨酸钙和高碱值硫化烷基酚钙的混合物;其中,各组分质量比为2:3。
所述抗氧抗腐剂为硫磷双辛基碱性锌盐和硫磷仲醇基锌盐的复合混合物,各组分按质量比为2:4。
该柴油发动机机油的制备方法的步骤中含有:
(a)按照各组分质量百分比备料;
(b)将基础油投入调配釜中,进行搅拌,并加热至50℃,60分钟后测量其理化指标,根据测量结果调整基础油;
(c)然后将降凝剂、粘度指数改进剂、复合抗氧剂、碱性清净剂、抗氧抗腐剂、抗磨剂和分散剂进行复合,并投入调配釜,充分混合搅拌5小时,得到成品。
实施例二
一种柴油发动机机油,它含有的组分及各组分质量百分比如下:
降凝剂:2%;
粘度指数改进剂:3%;
复合抗氧剂:7%;所述复合抗氧剂中包含有屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂;
碱性清净剂:13%;
抗氧抗腐剂:3%;
抗磨剂:3%;
分散剂:5%;
余量为基础油,总计100%。
所述基础油为异构加氢窄馏分基础油。
所述降凝剂为聚甲基丙烯酸酯。
所述粘度指数改进剂为乙烯丙烯共聚物。
所述抗磨剂为二烷基二硫代磷酸硫化氧钼。
所述分散剂为聚异丁烯双丁二酰亚胺。
复合抗氧剂中的屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂的质量比为3:2。
所述碱性清净剂为高碱值烷基水杨酸钙和高碱值硫化烷基酚钙的混合物;其中,各组分质量比为4:5。
所述抗氧抗腐剂为硫磷双辛基碱性锌盐和硫磷仲醇基锌盐的复合混合物,各组分按质量比为3:5。
该柴油发动机机油的制备方法的步骤中含有:
(a)按照各组分质量百分比备料;
(b)将基础油投入调配釜中,进行搅拌,并加热至60℃,80分钟后测量其理化指标,根据测量结果调整基础油;
(c)然后将降凝剂、粘度指数改进剂、复合抗氧剂、碱性清净剂、抗氧抗腐剂、抗磨剂和分散剂进行复合,并投入调配釜,充分混合搅拌6小时,得到成品。
实施例三
一种柴油发动机机油,它含有的组分及各组分质量百分比如下:
降凝剂:1.8%;
粘度指数改进剂:2.5%;
复合抗氧剂:6%;所述复合抗氧剂中包含有屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂;
碱性清净剂:12%;
抗氧抗腐剂:2.5%;
抗磨剂:2.3%;
分散剂:4%;
余量为基础油,总计100%。
所述基础油为异构加氢窄馏分基础油。
所述降凝剂为聚甲基丙烯酸酯。
所述粘度指数改进剂为乙烯丙烯共聚物。
所述抗磨剂为二烷基二硫代磷酸硫化氧钼。
所述分散剂为聚异丁烯双丁二酰亚胺。
复合抗氧剂中的屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂的质量比为2:3。
所述碱性清净剂为高碱值烷基水杨酸钙和高碱值硫化烷基酚钙的混合物;其中,各组分质量比为3:4。
所述抗氧抗腐剂为硫磷双辛基碱性锌盐和硫磷仲醇基锌盐的复合混合物,各组分按质量比为2:5。
该柴油发动机机油的制备方法的步骤中含有:
(a)按照各组分质量百分比备料;
(b)将基础油投入调配釜中,进行搅拌,并加热至55℃,70分钟后测量其理化指标,根据测量结果调整基础油;
(c)然后将降凝剂、粘度指数改进剂、复合抗氧剂、碱性清净剂、抗氧抗腐剂、抗磨剂和分散剂进行复合,并投入调配釜,充分混合搅拌5.5小时,得到成品。
以上三个实施例制备的柴油发动机机油,其性能技术指标如下:
运动粘度(100℃):16.3~<21.9;
低温动力粘度CCS不大于(-15℃)9500;
倾点/℃不高于-20;
闪点(开口)/℃不低于215;
碱值mgKOH/g不低于9.0;
高温高剪切粘度(150℃,106s-1)不小于3.7。
以上三个实施例制备的柴油发动机机油经过使用后发现,其碱值保持性好,抗酸性腐蚀能力强,高温稳定性、抗氧化性和清净分散性好等优点,减少了高温积碳及低温油泥的生成,防止了活塞环粘结;高温条件下减少了设备磨损,延长了发动机运转寿命,降低了机油消耗量,具有良好的抗泡性能,防止了供油不良的现象。
以上所述的具体实施例,对本发明所要解决的技术问题、技术方案和有益效果进行了进一步详细说明,所应理解的是,以上所述仅为本发明的具体实施例而已,并不用于限制本发明,凡在本发明的精神和原则之内,所做的任何修改、等同替换、改进等,均应包含在本发明的保护范围之内。
Claims (2)
1.一种柴油发动机机油,其特征在于它含有的组分及各组分质量百分比如下:
降凝剂:1.6%~2%;
粘度指数改进剂:2%~3%;
复合抗氧剂:5%~7%;所述复合抗氧剂中包含有屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂;
碱性清净剂:11%~13%;
抗氧抗腐剂:2%~3%;
抗磨剂:1.5%~3%;
分散剂:3~5%;
余量为基础油,总计100%;
所述基础油为异构加氢窄馏分基础油;
所述降凝剂为聚甲基丙烯酸酯;
所述粘度指数改进剂为乙烯丙烯共聚物;
所述抗磨剂为二烷基二硫代磷酸硫化氧钼;
所述分散剂为聚异丁烯双丁二酰亚胺;
复合抗氧剂中的屏蔽酚类抗氧剂与硫化烷基酚类抗氧剂的质量比为(2~3):(2~5);
所述碱性清净剂为高碱值烷基水杨酸钙和高碱值硫化烷基酚钙的混合物;其中,各组分质量比为(2~4):(3~5);
所述抗氧抗腐剂为硫磷双辛基碱性锌盐和硫磷仲醇基锌盐的复合混合物,各组分按质量比为(2~3):(4~5)。
2.一种如权利要求1所述的柴油发动机机油的制备方法,其特征在于方法的步骤中含有:
(a)按照各组分质量百分比备料;
(b)将基础油投入调配釜中,进行搅拌,并加热至50℃~60℃,60分钟~80分钟后测量其理化指标,根据测量结果调整基础油;
(c)然后将降凝剂、粘度指数改进剂、复合抗氧剂、碱性清净剂、抗氧抗腐剂、抗磨剂和分散剂进行复合,并投入调配釜,充分混合搅拌5~6小时,得到成品。
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