CN107254340A - 一种内燃机油添加剂及其制备方法 - Google Patents
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Abstract
一种内燃机油添加剂,其特征在于所述的内燃机油添加剂按质量百分比组成如下:固相润滑剂0.12%~2.22%,稠化剂40.0~48.66%%,复合抗氧剂1.22%~6.67%,复合金属清净剂和复合无灰分散剂之和为44.44%~48.67%,抗泡剂0.12%~2.22%,降凝剂1.22%~4.44%。一种内燃机油添加剂的制备方法,其特征在于包括以下步骤:1)在线自动计量入乳化罐,剪切乳化分散;2)将固相润滑剂混合后利用负压管道送入调和罐中,使用脉冲调和装置搅拌混合添加剂,使添加剂混合均匀;3)经过滤机过滤,去除直径大于10μm的固体润滑颗粒,用油泵将添加剂打入高位储存罐中,自流入不同体积的灌装机。本发明所具有的有益效果是:可以有效去除发动机内积碳;可以较大幅度节约油耗;③可以减少摩擦,延长发动机寿命。
Description
技术领域
本发明涉及一种添加剂及其制备方法,特别是涉及一种内燃机油添加剂及其制备方法。
背景技术
内燃机油是一种由石油润滑油或合成润滑油为主,加入清净分散剂和抗氧化抗腐蚀添加剂等调制而成的润滑油。其组成包含分子量为400~800的各种烃类以及少量的含硫、氮、氧等化合物。它有良好的油性,广泛用于各种汽油机和柴油机摩擦部位的减摩、防锈和冷却,同时兼具密封、清洗润滑表面杂质等作用,其用量占润滑油总量的40%以上。
内燃机油是在比较荷刻的条件下工作的,例如活塞环对气缸壁的摩擦速度很大(大型发动机在转速为3500~4000 r/min时为10~12m/s,小型发动机在转速为3800~4000r/min时为9~11m/s),并且发动机燃烧室的温度变化范围很大,从-35℃(冬天起动时)到2200℃以上(燃烧时)。因此,它要求具备以下几个主要性能:
(1)粘度
发动机油低温(-5~-30℃)一般要求起动粘度在6000~3000 mPa•s 范围内;油品在高温高速下(100℃)能保持油膜的最低运动粘度,一般不小于3.8mm2/s。否则,油膜容易破坏,密封作用不好。内燃机油的粘度要兼顾到有较好的高温和低温粘度,即粘温性好。
(2)氧化安定性
加入抗氧剂以提高油品的抗氧化性能
(3)清净分散性
一方面能够抑制氧化胶状物和积炭的生成,另一方面要能将沉积物洗涤下来,使悬浮在油中,从而减小活塞上漆膜和积炭生成倾向。
(4)抗磨损性能
润滑油在金属表面能否保持一层紧密牢固油膜的能力。
随着我国汽车行业的快速发展,汽车数量不断增长。公安部交管局2016年发布统计数据,截至2015年底,全国机动车保有量达2.79亿辆,其中汽车1.72亿辆。全国私家车保有量已达1.24亿辆,平均每百户家庭拥有31辆。发动机是汽车的心脏,目前市场上的汽车开久了,尤其是在城市道路上长时间行驶,心脏内容易积聚大量油污,同时油路积碳、胶质,使燃油不能充分燃烧,出现启动困难、加速缓慢、怠速抖动的问题。使得油品的质量提高难以实现,既不经济,也不环保。
发明内容
本发明的目的旨在克服现有技术的不足,提供一种内燃机油添加剂及其制备方法,通过合理的配方设计和分散工艺提高汽车用内燃机油的性能,起到去除发动机内积碳,节约油耗,减少汽车尾气排放以及减少摩擦力,延长发动机寿命的作用。
为实现本发明的目的采用的技术方案是,一种内燃机油添加剂,按质量百分比组成如下:固相润滑剂0.12%~2.22%,稠化剂40.0~48.66%%,复合抗氧剂1.22%~6.67%,复合金属清净剂和复合无灰分散剂之和为44.44%~48.67%,抗泡剂0.12%~2.22%,降凝剂1.22%~4.44%。
所述固相润滑剂由石墨烯、石墨粉、二硫化钼组成,其中石墨烯、石墨粉与二硫化钼重量比值为1~70:6~280:3~150,并且石墨烯的单层厚度≤2nm,片层直径为0.2~5.0μm,石墨粉和二硫化钼的颗粒度为1.0μm~5.0μm。由于石墨烯的分子颗粒非常小,因此它能在缸壁与活塞之间进行摩擦时产生滚珠效应,把滑动摩擦变为滚动摩擦,与石墨粉和二硫化钼协同润滑,同时还能像腻子一样把缸壁上不平整的地方抹平。
所述稠化剂为油溶性高分子分散型乙烯丙烯共聚物(OCP),内燃机油的粘温性能对改善和提高发动机在宽温度范围内的使用性能起着极为重要的作用,添加OCP以提高合成内燃机油粘温性能,弥补基础油粘度不足。
所述复合抗氧剂由二烷基二硫化磷酸锌(ZDDP)、辅助抗氧剂A和R组成,其中ZDDP、A和R的重量比值为8~120:1~15:1~15。在高温下具有终止自由基和分散过氧化物的双重作用,热分解产物能够在金属表面形成保护膜,使金属免遭腐蚀,并具有抗磨作用。
所述复合金属清净剂为硫化烷基酚盐、磺酸盐和环烷酸盐,三者比值为1:1.4~2.5:0.6~1.0。
所述复合无灰分散剂为抗氧型无灰分散剂与丁二酰亚胺类无灰分散剂,二者比值为1:2~4,同时复合无灰分散剂与复合金属清净剂比值为1:0.75~1.1。
一种内燃机油添加剂制备方法,其特征在于包括以下步骤:
1)先将不同调和釜中的稠化剂、复合抗氧化剂、复合金属清净剂、复合无灰分散剂、抗泡剂和降凝剂分别经自动质量流量计系统按比例进入乳化罐中,剪切乳化分散3~5h(功率24KWh,转速3000rad/min)后,将混合液送入调和罐中;
2)再将固相润滑剂石墨烯、石墨粉和二硫化钼按比例配比混合后利用负压管道送入调和罐中,使用脉冲调和装置,利用压缩空气来搅拌混合添加剂(用气量0.1m3)1h,使添加剂混合均匀;
3)上述添加剂经过滤机过滤,去除直径大于10μm的固体润滑颗粒,用油泵将添加剂打入高位储存罐中,自流入不同体积的灌装机中。
本发明所具有的有益效果是:可以有效去除发动机内积碳;可以较大幅度节约油耗;③可以减少摩擦,延长发动机寿命。
附图说明
图1是本发明一种内燃机油添加剂制备方法的工艺流程图。其中附图标记:1-稠化剂罐;2-ZDDP罐;3-辅助抗氧剂A罐;4-辅助抗氧剂R罐;5-复合金属清净剂罐1;6-复合金属清净剂罐2;7-复合金属清净剂罐3;8-复合分散剂1;9-复合分散剂2;10-抗泡剂罐;11-降凝剂罐;12-阀门;13-乳化罐;14-调和罐;15-固体料仓;16-负压计量器;17-过滤器;18-高位储存罐;19-灌装机。
具体实施方式
下面结合具体实施例,进一步阐明本发明,应理解这些实施例仅用于说明本发明而不用于限制本发明的范围,在阅读了本发明之后,本领域技术人员对本发明的各种等价形式的修改均落于本申请所附权利要求所限定。
实施例1
一种内燃机油添加剂,其特征在于所述的内燃机油添加剂按质量百分比组成如下:固相润滑剂2.0%,稠化剂44.0%,复合抗氧剂4.0%,复合金属清净剂23.0%,复合无灰分散剂23.0%,抗泡剂1.5%,降凝剂2.5%。
所述固相润滑剂由石墨烯、石墨粉、二硫化钼组成,按质量百分比为:石墨烯0.04%,石墨粉0.98%,二硫化钼0.98%,并且石墨烯的单层厚度≤2nm,片层直径为0.2~5.0μm,石墨粉和二硫化钼的颗粒度为1.0μm~5.0μm。
所述复合抗氧剂由二烷基二硫化磷酸锌(ZDDP)、辅助抗氧剂A和R组成,按质量百分比为:ZDDP 3.2%,A 0.4%,R 0.4%。
所述的复合金属清净剂由硫化烷基酚盐、磺酸盐和环烷酸盐组成,按质量百分比为:硫化烷基酚盐6.0%,磺酸盐12.0%,环烷酸盐5.0%。
所述的复合无灰分散剂为抗氧型无灰分散剂与丁二酰亚胺类无灰分散剂,按质量百分比为:抗氧型无灰分散剂5.75%,丁二酰亚胺类无灰分散剂17.25%。
一种汽车用合成内燃机油制备方法,其特征在于包括以下步骤:
1)先将不同调和釜中的稠化剂、复合抗氧化剂、复合金属清净剂、复合无灰分散剂、抗泡剂和降凝剂分别经自动质量流量计系统按比例进入乳化罐中,剪切乳化分散4h(功率24KWh,转速3000rad/min)后,将混合液送入调和罐中;
2)再将固相润滑剂石墨烯、石墨粉和二硫化钼按比例配比混合后利用负压管道送入调和罐中,使用脉冲调和装置,利用压缩空气来搅拌混合添加剂(用气量0.1m3)1h,使添加剂混合均匀;
3)上述添加剂经过滤机过滤,去除直径大于10μm的固体润滑颗粒,用油泵将添加剂打入高位储存罐中,自流入不同体积的灌装机中。
上述仅为本发明的一个具体实施方式,但本发明的设计构思并不局限于此,凡利用此构思对本发明进行非实质性的改动,均应属于侵犯本发明保护的范围的行为。但凡是未脱离本发明技术方案的内容,依据本发明的技术实质对以上实施例所作的任何形式的简单修改、等同变化与改型,仍属于本发明技术方案的保护范围。
Claims (7)
1.一种内燃机油添加剂,其特征在于所述的内燃机油添加剂按质量百分比组成如下:固相润滑剂0.12%~2.22%,稠化剂40.0~48.66%%,复合抗氧剂1.22%~6.67%,复合金属清净剂和复合无灰分散剂之和为44.44%~48.67%,抗泡剂0.12%~2.22%,降凝剂1.22%~4.44%。
2.根据权利要求1所述的内燃机油添加剂,其特征在于所述固相润滑剂由石墨烯、石墨粉、二硫化钼组成,其中石墨烯、石墨粉与二硫化钼重量比值为1~70:6~280:3~150,并且石墨烯的单层厚度≤2nm,片层直径为0.2~5.0μm,石墨粉和二硫化钼的颗粒度为1.0μm~5.0μm。
3.根据权利要求1所述的内燃机油添加剂,其特征在于所述的稠化剂为油溶性高分子分散型乙烯丙烯共聚物(OCP)。
4.根据权利要求1所述的内燃机油添加剂,其特征在于所述的复合抗氧剂由二烷基二硫化磷酸锌(ZDDP)、辅助抗氧剂A和R组成,其中ZDDP、A和R的重量比值为8~120:1~15:1~15。
5.根据权利要求1所述的内燃机油添加剂,其特征在于所述的复合金属清净剂为硫化烷基酚盐、磺酸盐和环烷酸盐,三者比值为1:1.4~2.5:0.6~1.0。
6.根据权利要求1所述的内燃机油添加剂,其特征在于所述的复合无灰分散剂为抗氧型无灰分散剂与丁二酰亚胺类无灰分散剂,二者比值为1:2~4,同时复合无灰分散剂与复合金属清净剂比值为1:0.75~1.1。
7.一种内燃机油添加剂制备方法,其特征在于包括以下步骤:
1)先将不同调和釜中的稠化剂、复合抗氧化剂、复合金属清净剂、复合无灰分散剂、抗泡剂和降凝剂分别经自动质量流量计系统按比例进入乳化罐中,剪切乳化分散3~5h(功率24KWh,转速3000rad/min)后,将混合液送入调和罐中;
2)再将固相润滑剂石墨烯、石墨粉和二硫化钼按比例配比混合后利用负压管道送入调和罐中,使用脉冲调和装置,利用压缩空气来搅拌混合添加剂(用气量0.1m3)1h,使添加剂混合均匀;
3)上述添加剂经过滤机过滤,去除直径大于10μm的固体润滑颗粒,用油泵将添加剂打入高位储存罐中,自流入不同体积的灌装机中。
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