CN105969484A - 一种提高润滑油抗氧防腐性能的添加剂 - Google Patents
一种提高润滑油抗氧防腐性能的添加剂 Download PDFInfo
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Abstract
本发明公开了一种提高润滑油抗氧防腐性能的添加剂,由下列物质制成:甲基丙烯酸、叔丁基对苯二酚、环已六醇六磷酸酯、二乙胺、硼酸、硫磷丙辛仲伯烷基锌盐、硫磷双辛伯烷基锌盐、硫化烯烃、羽扇醇棕榈酸酯、聚硅氧烷、油茶籽壳提取物、纳米颗粒混合物。本发明润滑油各成分间相互作用,协同配合,显著提高了润滑油抗氧化、防腐蚀的效果,其稳定性、抗磨性、分散性、润滑性等均得到较好的改善,此润滑油可广泛应用于各种机械设备的润滑,能显著提升机械设备的抗氧化腐蚀效果,具有较强的市场竞争力。
Description
技术领域
本发明涉及一种润滑油添加剂,具体涉及一种提高润滑油抗氧防腐性能的添加剂。
背景技术
摩擦磨损是普遍存在的自然现象,而润滑油是降低摩擦减少及抗御磨损最有效的途径之一,对磨损表面在运动中进行原位修复一直是润滑工作者不断追求的目标。润滑油一般由基础油和添加剂两部分组成,基础油是润滑油的主要成分,决定着润滑油的基本性质,添加剂则可以弥补和改善基础油的某些性能。润滑油按其来源分动、植物油,石油润滑油和合成润滑油三大类。石油润滑油的用量占总用量 97% 以上,因此润滑油常指石油润滑油。主要用于减少运动部件表面间的摩擦,同时对机器设备具有冷却、密封、防腐、防锈、绝缘、功率传送、清洗杂质等作用,主要以来自原油蒸馏装置的润滑油馏分和渣油馏分为原料。润滑油最主要的性能是粘度、氧化安定性和润滑性,它们与润滑油馏分的组成密切相关。粘度是反映润滑油流动性的重要质量指标,不同的使用条件具有不同的粘度要求,重负荷和低速度的机械要选用高粘度润滑油,氧化安定性表示油品在使用环境中,由于温度、空气中氧以及金属催化作用所表现的抗氧化能力。油品氧化后,根据使用条件会生成细小的沥青质为主的碳状物质,呈粘滞的漆状物质或漆膜,或粘性的含水物质,从而降低或丧失其使用性能。润滑性表示润滑油的减磨性能。润滑油添加剂概念是加入润滑剂中的一种或几种化合物,以使润滑剂得到某种新的特性或改善润滑剂中已有的一些特性。添加剂按功能分主要有抗氧化剂、抗磨剂、摩擦改善剂(又名油性剂)、极压添加剂、清净剂、分散剂、泡沫抑制剂、防腐防锈剂、流点改善剂、粘度指数增进剂等类型。
目前市场上常见的润滑油抗氧化添加剂组分较为单一,通常添加一些抗氧化、防腐蚀的成分,但通常对润滑油的功能提升不显著,因为润滑油的各个性能是所有成分共同作用的结果,且不同成分对不同性能都会有所影响,单纯的添加某种功能性成分的效果不甚明显。
发明内容
为了解决上述问题,本发明提供了一种提高润滑油抗氧防腐性能的添加剂,对润滑油的抗氧防腐性能提升显著,对其他性能亦有所提高。
本发明通过以下技术方案来实现:
一种提高润滑油抗氧防腐性能的添加剂,由如下重量份的物质制成:
10份甲基丙烯酸、6份叔丁基对苯二酚、8份环已六醇六磷酸酯、3份二乙胺、3份硼酸、4份硫磷丙辛仲伯烷基锌盐、4份硫磷双辛伯烷基锌盐、5份硫化烯烃、8份羽扇醇棕榈酸酯、6份聚硅氧烷、2份油茶籽壳提取物、10份纳米颗粒混合物;所述纳米颗粒混合物是由纳米改性石墨与纳米改性膨润土按质量比2:1混合而成。
进一步的,所述油茶籽壳提取物的制备方法包括如下步骤:
a.将油茶籽壳放于质量分数为1.5%的食盐溶液中浸泡20min后,取出用清水冲洗晾干备用;
b.将洗净后的油茶籽壳放入低温粉碎机中,控制温度为-40~-30℃,粉碎成粒径为0.2~0.3mm的颗粒,制成油茶籽壳粉备用;
c.将油茶籽壳粉与其质量2倍的清水混合均匀,然后加入清水质量1.5%的复合酶制剂,保持水温为40~42℃,酶解20min后得酶解液备用,所述复合酶制剂中含有纤维素酶、半纤维素酶和果胶酶;
d.将酶解液放入其质量3倍的质量分数为95%的乙醇溶液中,辅以频率为32KHz的超声波进行提取,1~1.5h后得醇提液备用;
e.对醇提液进行去醇去水处理后即得油茶籽壳提取物。添加的油茶籽壳提取物可提高各成分间与基油间的融合性,又具有一定的抗氧化功能。
进一步的,所述纳米改性石墨的制备方法包括如下步骤:
a.将石墨放入质量分数为2%的胡萝卜酸溶液中,浸渍15min后取出,然后放入质量分数为2%的小苏打溶液中,浸渍15min后取出,最后用清水冲洗后干燥备用;
b.将干燥后的石墨放入质量分数为12%的氯化钾溶液中,保持溶液温度为30~35℃,同时施加频率为28KHz的超声波,20~22h后取出干燥得氯化改性石墨备用;
c.将氯化改性石墨放入球磨机中,控制温度为-30~-25℃,不断研磨至粒径为30~35nm,得纳米石墨备用;
d.将纳米石墨放入其质量3倍的猪油脂中,加热保持猪油脂温度为100~105℃,不断搅拌,30~35min后滤出干燥即得纳米改性石墨。改性后石墨的耐高温、耐腐蚀性得到提升,在基油中的分散性和稳定性得到改善。
进一步的,所述纳米改性膨润土的制备方法包括如下步骤:
a.将膨润土放入质量分数为2.5%的酒石酸溶液中,浸渍15min后取出,然后放入质量分数为2.5%的小苏打溶液中,浸渍15min后取出,最后用清水冲洗后干燥备用;
b.将干燥后的膨润土放入窑中煅烧2~2.5h,煅烧的温度为800~900℃,取出后得高温改性膨润土备用;
c.将高温改性膨润土放入球磨机中,控制温度为-25~-23℃,不断研磨至粒径为25~30nm,得纳米膨润土备用;
d.将纳米膨润土放入其质量3倍的猪油脂中,加热保持猪油脂温度为108~110℃,不断搅拌,30~35min后滤出干燥即得纳米改性膨润土。改性后膨润土的耐高温、耐腐蚀、强度和承载性得到提升,在基油中的分散性和稳定性得到改善,与改性石墨一起提高了润滑油的整体性能。
进一步的,所述添加剂在润滑油中添加的质量分数为8~12%。
本发明具有如下有益效果:
(1)本添加剂中的纳米颗粒混合物是由纳米改性石墨与纳米改性膨润土共混而成,相比现有单一的纳米颗粒添加物而言,具有如下优点:纳米改性石墨颗粒为片层结构,纳米改性膨润土为球形结构,两者共同添加到润滑油中,即能减轻零件相对运动时产生的摩擦力,又能保证油膜的完整性,充分发挥了纳米颗粒的作用;经过特殊改性后,其与润滑油的融合性更佳,为抗氧防腐添加成分功效的发挥奠定了基础。
(2)本发明润滑油各成分间相互作用,协同配合,显著提高了润滑油抗氧化、防腐蚀的效果,其稳定性、抗磨性、分散性、润滑性等均得到较好的改善,此润滑油可广泛应用于各种机械设备的润滑,能显著提升机械设备的抗氧化腐蚀效果,具有较强的市场竞争力。
具体实施方式
实施例1
一种提高润滑油抗氧防腐性能的添加剂,由如下重量份的物质制成:
10份甲基丙烯酸、6份叔丁基对苯二酚、8份环已六醇六磷酸酯、3份二乙胺、3份硼酸、4份硫磷丙辛仲伯烷基锌盐、4份硫磷双辛伯烷基锌盐、5份硫化烯烃、8份羽扇醇棕榈酸酯、6份聚硅氧烷、2份油茶籽壳提取物、10份纳米颗粒混合物;所述纳米颗粒混合物是由纳米改性石墨与纳米改性膨润土按质量比2:1混合而成。
进一步的,所述油茶籽壳提取物的制备方法包括如下步骤:
a.将油茶籽壳放于质量分数为1.5%的食盐溶液中浸泡20min后,取出用清水冲洗晾干备用;
b.将洗净后的油茶籽壳放入低温粉碎机中,控制温度为-40~-30℃,粉碎成粒径为0.2~0.3mm的颗粒,制成油茶籽壳粉备用;
c.将油茶籽壳粉与其质量2倍的清水混合均匀,然后加入清水质量1.5%的复合酶制剂,保持水温为40~42℃,酶解20min后得酶解液备用,所述复合酶制剂中含有纤维素酶、半纤维素酶和果胶酶;
d.将酶解液放入其质量3倍的质量分数为95%的乙醇溶液中,辅以频率为32KHz的超声波进行提取,1~1.5h后得醇提液备用;
e.对醇提液进行去醇去水处理后即得油茶籽壳提取物。
进一步的,所述纳米改性石墨的制备方法包括如下步骤:
a.将石墨放入质量分数为2%的胡萝卜酸溶液中,浸渍15min后取出,然后放入质量分数为2%的小苏打溶液中,浸渍15min后取出,最后用清水冲洗后干燥备用;
b.将干燥后的石墨放入质量分数为12%的氯化钾溶液中,保持溶液温度为30~35℃,同时施加频率为28KHz的超声波,20~22h后取出干燥得氯化改性石墨备用;
c.将氯化改性石墨放入球磨机中,控制温度为-30~-25℃,不断研磨至粒径为30~35nm,得纳米石墨备用;
d.将纳米石墨放入其质量3倍的猪油脂中,加热保持猪油脂温度为100~105℃,不断搅拌,30~35min后滤出干燥即得纳米改性石墨。
进一步的,所述纳米改性膨润土的制备方法包括如下步骤:
a.将膨润土放入质量分数为2.5%的酒石酸溶液中,浸渍15min后取出,然后放入质量分数为2.5%的小苏打溶液中,浸渍15min后取出,最后用清水冲洗后干燥备用;
b.将干燥后的膨润土放入窑中煅烧2~2.5h,煅烧的温度为800~900℃,取出后得高温改性膨润土备用;
c.将高温改性膨润土放入球磨机中,控制温度为-25~-23℃,不断研磨至粒径为25~30nm,得纳米膨润土备用;
d.将纳米膨润土放入其质量3倍的猪油脂中,加热保持猪油脂温度为108~110℃,不断搅拌,30~35min后滤出干燥即得纳米改性膨润土。
进一步的,所述添加剂在润滑油中添加的质量分数为8~12%。
对比实施例1
本对比实施例1与实施例1相比,纳米颗粒混合物中仅含有纳米改性石墨,所用质量与实施例1中的纳米颗粒混合物质量相同,除此外的方法步骤均相同。
对比实施例2
本对比实施例2与实施例1相比,纳米颗粒混合物中仅含有纳米改性膨润土,所用质量与实施例1中的纳米颗粒混合物质量相同,除此外的方法步骤均相同。
对照组1
市售具有抗氧防腐性能的润滑油。
对照组2
市售20#标准机械油。
为了对比本发明效果,设置了抗磨减摩试验,具体如下:
本试验方法采用四球试验方法,四球试验参数标准为:转速1450r/min,载荷392N,时间
80min。试验所用钢球按照 GB/308-89 制造,GCr15,二级钢球,直径 13.4mm,硬度为 64-66HRC。试验中,将试验用油注入容纳钢球的油杯中,使液面刚好没过钢球的表面,施加垂直载荷 P 为400N,测量出摩擦力矩,由公式:μ=0.233×T/P(其中 μ 为摩擦因数;T 为摩擦力矩)计算出摩擦因数,一次用于评价检测油的摩擦因数 μ 与磨损量。检测油为上述四种润滑油与20#标准机械油,试验前后对钢球和环块进行充分清洗,然后用万分之一电子天平称量试验前后钢球的磨损量,用金相显微镜测量钢球的磨斑直径,对比数据如下:
磨前质量(g) | 磨后质量(g) | 质量磨损量(g) | |
实施例1 | 36.3778 | 36.3775 | 0.0003 |
对比实施例1 | 36.4213 | 36.4207 | 0.0006 |
对比实施例2 | 36.4025 | 36.4017 | 0.0008 |
对照组1 | 36.3922 | 36.3903 | 0.0019 |
对照组2 | 36.4137 | 36.4099 | 0.0038 |
通过实际观察发现,对照组1和对照组2对应的钢球表面有明显磨损现象,而实施例1、对比实施例1和对比实施例2对应的钢球表面几乎无磨损。
为了对比本发明效果,又设置了抗氧化腐蚀试验,具体如下:
选取同一批次、大小的互相啮合的齿轮组合五对,放入空气氧含量为50%、相对水含量为90%的密闭空间中,控制转速为800r/min,期间分别对应施加检测油进行润滑,检测油为上述四种润滑油与20#标准机械油,统计齿轮表面腐蚀面积达5%时所用的时长,对比数据如下:
实施例1 | 对比实施例1 | 对比实施例2 | 对照组1 | 对照组2 | |
表面腐蚀达5%时所用时长(h) | 326 | 274 | 265 | 223 | 135 |
Claims (5)
1.一种提高润滑油抗氧防腐性能的添加剂,其特征在于,由如下重量份的物质制成:
10份甲基丙烯酸、6份叔丁基对苯二酚、8份环已六醇六磷酸酯、3份二乙胺、3份硼酸、4份硫磷丙辛仲伯烷基锌盐、4份硫磷双辛伯烷基锌盐、5份硫化烯烃、8份羽扇醇棕榈酸酯、6份聚硅氧烷、2份油茶籽壳提取物、10份纳米颗粒混合物;所述纳米颗粒混合物是由纳米改性石墨与纳米改性膨润土按质量比2:1混合而成。
2.根据权利要求1所述的一种提高润滑油抗氧防腐性能的添加剂,其特征在于,所述油茶籽壳提取物的制备方法包括如下步骤:
a.将油茶籽壳放于质量分数为1.5%的食盐溶液中浸泡20min后,取出用清水冲洗晾干备用;
b.将洗净后的油茶籽壳放入低温粉碎机中,控制温度为-40~-30℃,粉碎成粒径为0.2~0.3mm的颗粒,制成油茶籽壳粉备用;
c.将油茶籽壳粉与其质量2倍的清水混合均匀,然后加入清水质量1.5%的复合酶制剂,保持水温为40~42℃,酶解20min后得酶解液备用,所述复合酶制剂中含有纤维素酶、半纤维素酶和果胶酶;
d.将酶解液放入其质量3倍的质量分数为95%的乙醇溶液中,辅以频率为32KHz的超声波进行提取,1~1.5h后得醇提液备用;
e.对醇提液进行去醇去水处理后即得油茶籽壳提取物。
3.根据权利要求1所述的一种提高润滑油抗氧防腐性能的添加剂,其特征在于,所述纳米改性石墨的制备方法包括如下步骤:
a.将石墨放入质量分数为2%的胡萝卜酸溶液中,浸渍15min后取出,然后放入质量分数为2%的小苏打溶液中,浸渍15min后取出,最后用清水冲洗后干燥备用;
b.将干燥后的石墨放入质量分数为12%的氯化钾溶液中,保持溶液温度为30~35℃,同时施加频率为28KHz的超声波,20~22h后取出干燥得氯化改性石墨备用;
c.将氯化改性石墨放入球磨机中,控制温度为-30~-25℃,不断研磨至粒径为30~35nm,得纳米石墨备用;
d.将纳米石墨放入其质量3倍的猪油脂中,加热保持猪油脂温度为100~105℃,不断搅拌,30~35min后滤出干燥即得纳米改性石墨。
4.根据权利要求1所述的一种提高润滑油抗氧防腐性能的添加剂,其特征在于,所述纳米改性膨润土的制备方法包括如下步骤:
a.将膨润土放入质量分数为2.5%的酒石酸溶液中,浸渍15min后取出,然后放入质量分数为2.5%的小苏打溶液中,浸渍15min后取出,最后用清水冲洗后干燥备用;
b.将干燥后的膨润土放入窑中煅烧2~2.5h,煅烧的温度为800~900℃,取出后得高温改性膨润土备用;
c.将高温改性膨润土放入球磨机中,控制温度为-25~-23℃,不断研磨至粒径为25~30nm,得纳米膨润土备用;
d.将纳米膨润土放入其质量3倍的猪油脂中,加热保持猪油脂温度为108~110℃,不断搅拌,30~35min后滤出干燥即得纳米改性膨润土。
5.根据权利要求1所述的一种提高润滑油抗氧防腐性能的添加剂,其特征在于,所述添加剂在润滑油中添加的质量分数为8~12%。
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