CN106635345A - 一种低温抗燃液压油的制备方法 - Google Patents

一种低温抗燃液压油的制备方法 Download PDF

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CN106635345A
CN106635345A CN201611224899.0A CN201611224899A CN106635345A CN 106635345 A CN106635345 A CN 106635345A CN 201611224899 A CN201611224899 A CN 201611224899A CN 106635345 A CN106635345 A CN 106635345A
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皮蒙
雷春生
王龙
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Changzhou University
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Abstract

本发明涉及一种低温抗燃液压油的制备方法,属于液压油技术领域。本发明以生物降解性能好的季戊四醇油酸酯为基础油,复配高粘度指数中性油和癸二酸二辛酯,制得耐低温基础油,再通过超声辅助剥离法,在表面活性剂水溶液中剥离二硫化钼晶体,制得单层结构二硫化钼,将单层结构二硫化钼与抗氧剂、极压剂、防锈剂等研磨混合均匀,最后将其与复配基础油混合均匀,制得低温抗燃液压油,本发明利用单层结构二硫化钼,在摩擦副表面形成低剪切应力膜,以此降低摩擦系数,对摩擦表面起到填补和修复作用,再复合添加剂,使本发明制备的低温抗燃液压油具有优异的润滑性和抗磨性、优良的低温稳定性、良好的抗燃性、可生物降解性和长久的使用寿命。

Description

一种低温抗燃液压油的制备方法
技术领域
本发明涉及一种低温抗燃液压油的制备方法,属于液压油技术领域。
背景技术
抗燃液压油是一种以有机酸酯为基础油,具有火焰自动熄灭功能和很强的生物降解性的抗燃液压油。不仅具有优秀的抗氧化、防磨损、防锈和防泡沫性能,还可以把油品与火焰或炽热表面接触时发生火灾和爆炸的危险降到最低。是一种以有机酸酯为基础油,具有火焰自动熄灭功能和很强的生物降解性的抗燃液压油。不仅具有优秀的抗氧化、防磨损、防锈和防泡沫性能,还可以把油品与火焰或炽热表面接触时发生火灾和爆炸的危险降到最低。
抗燃液压液的发展始于第二次世界大战末,首先是在飞机液压系统上的应用,并逐步推广到民用工业上使用,主要应用于冶金、采矿、电厂、机械加工等行业易接近高温明火的液压系统,以避免因使用传统的矿物油型液压油泄露引起的火灾事故的发生。
抗燃性液压液具有润滑性能好。粘度指数高,使用安全,寿命长等优点。广泛用于炼铁、炼钢、压铸、连铸、热轧、煤矿、玻璃制品加工以及挖掘机等接近热源、有火灾危险的各种设备的液压系统中。随着液压技术不断发展,设备工况日益苛刻,安全环保的要求不断提高,促使各种类型的抗燃液压液得到不断发展和完善。目前最广泛采用的抗燃液压液是水-乙二醇液体,但其在使用中存在腐蚀金属和润滑性不良等问题。
发明内容
本发明所要解决的技术问题:针对目前采用最广泛的抗燃液压油水-乙二醇,其在使用中存在腐蚀金属、低温稳定性不佳、润滑性不良、抗燃性和抗磨性不良、消泡时间长的问题,本发明提供了一种低温抗燃液压油的制备方法,本发明以生物降解性能好的季戊四醇油酸酯为基础油,复配高粘度指数中性油和癸二酸二辛酯,制得耐低温基础油,再通过超声辅助剥离法,在表面活性剂水溶液中剥离二硫化钼晶体,制得单层结构二硫化钼,将单层结构二硫化钼与抗氧剂、极压剂、防锈剂等研磨混合均匀,最后将其与复配基础油混合均匀,制得低温抗燃液压油,本发明利用单层结构二硫化钼,在摩擦副表面形成低剪切应力膜,以此降低摩擦系数,对摩擦表面起到填补和修复作用,再复合添加剂,使本发明制备的低温抗燃液压油具有较低的挥发性、优异的润滑性和抗磨性、优良的低温稳定性、良好的抗燃性、可生物降解性和长久的使用寿命。
为解决上述技术问题,本发明采用的技术方案是:
(1)按质量比5:1~8:1,将季戊四醇油酸酯与高粘度指数中性油HVI-500混合,在30~40℃下搅拌1~2h,得混合油,向混合油中再加入相当于混合油质量3~5%的癸二酸二辛酯,继续搅拌1~2h,得复配基础油,备用;
(2)称取5~8g二硫化钼,装入研钵中研磨,过100目筛,将过筛后的二硫化钼粉末与1.8~2.5g胆酸钠混合后,加入1.0~1.2L去离子水中,在40~50℃恒温水浴下,以300W超声波超声分散5~8h,随后转入离心机中,以3000~4000r/min离心分离20~30min,收集上清液,将上清液以10000~12000r/min离心分离30~40min,收集沉淀,并置于干燥箱中,在105~110℃下干燥至恒重,得单层结构二硫化钼;
(3)称取1~3g上述单层结构二硫化钼,3~8g烷基化二苯胺,装入研钵中研磨20~30min,再加入1~3g硫代磷酸三苯酯,0.1~1.0g三乙醇胺硼酸酯,继续研磨20~30min,随后出料得复合添加剂;
(4)按重量份数计,称取80~90份步骤(1)备用的复配基础油,1~2份二异丙基萘磺酸钠,装入烧杯中,加热至50~60℃,并以300~400r/min搅拌20~30min,再加入1~2份石油磺酸钠,继续搅拌30~40min,随后加入10~12份上述复合添加剂,加热至70~90℃,并以800~1000r/min搅拌1~2h,过滤并收集滤液,得低温抗燃液压油。
本发明的应用方法是:清洗液压油箱,清除剩油、废油和沉淀物后,再加入本发明制备的低温抗燃液压油,本发明制备的低温抗燃液压油具有良好的防锈性、抗氧化安定性,在-40~-30℃下仍具有较好的抗凝和低温流动性,且具有优异的润滑性和抗磨性,使用时间较常用产品延长100~120%。
本发明的有益技术效果是:
(1)本发明制备的低温抗燃液压油,具有良好的的抗凝和低温流动性,可在-40~-30℃使用;
(2)本发明制备的低温抗燃液压油,具有良好的气相和液相防锈性,所用油箱内壁无需附加不锈钢板或涂漆处理,对各种金属构件和密封、软管材质都能适用。
具体实施方式
按质量比5:1~8:1,将季戊四醇油酸酯与高粘度指数中性油HVI-500混合,在30~40℃下搅拌1~2h,得混合油,向混合油中再加入相当于混合油质量3~5%的癸二酸二辛酯,继续搅拌1~2h,得复配基础油;称取5~8g二硫化钼,装入研钵中研磨,过100目筛,将过筛后的二硫化钼粉末与1.8~2.5g胆酸钠混合后,加入1.0~1.2L去离子水中,在40~50℃恒温水浴下,以300W超声波超声分散5~8h,随后转入离心机中,以3000~4000r/min离心分离20~30min,收集上清液,将上清液以10000~12000r/min离心分离30~40min,收集沉淀,并置于干燥箱中,在105~110℃下干燥至恒重,得单层结构二硫化钼;称取1~3g上述单层结构二硫化钼,3~8g烷基化二苯胺,装入研钵中研磨20~30min,再加入1~3g硫代磷酸三苯酯,0.1~1.0g三乙醇胺硼酸酯,继续研磨20~30min,随后出料得复合添加剂;按重量份数计,称取80~90份上述复配基础油,1~2份二异丙基萘磺酸钠,装入烧杯中,加热至50~60℃,并以300~400r/min搅拌20~30min,再加入1~2份石油磺酸钠,继续搅拌30~40min,随后加入10~12份上述复合添加剂,加热至70~90℃,并以800~1000r/min搅拌1~2h,过滤并收集滤液,得低温抗燃液压油。
实例1
按质量比5:1,将季戊四醇油酸酯与高粘度指数中性油HVI-500混合,在30℃下搅拌1h,得混合油,向混合油中再加入相当于混合油质量3%的癸二酸二辛酯,继续搅拌1h,得复配基础油;称取5g二硫化钼,装入研钵中研磨,过100目筛,将过筛后的二硫化钼粉末与1.8g胆酸钠混合后,加入1.0L去离子水中,在40℃恒温水浴下,以300W超声波超声分散5h,随后转入离心机中,以3000r/min离心分离20min,收集上清液,将上清液以10000r/min离心分离30min,收集沉淀,并置于干燥箱中,在105℃下干燥至恒重,得单层结构二硫化钼;称取1g上述单层结构二硫化钼,3g烷基化二苯胺,装入研钵中研磨20min,再加入1g硫代磷酸三苯酯,0.1g三乙醇胺硼酸酯,继续研磨20min,随后出料得复合添加剂;按重量份数计,称取80份上述复配基础油,1份二异丙基萘磺酸钠,装入烧杯中,加热至50℃,并以300r/min搅拌20min,再加入1份石油磺酸钠,继续搅拌30min,随后加入10份上述复合添加剂,加热至70℃,并以800r/min搅拌1h,过滤并收集滤液,得低温抗燃液压油。
本发明的应用方法是:清洗液压油箱,清除剩油、废油和沉淀物后,再加入本发明制备的低温抗燃液压油,本发明制备的低温抗燃液压油具有良好的防锈性、抗氧化安定性,在-30℃下仍具有较好的抗凝和低温流动性,且具有优异的润滑性和抗磨性,使用时间较常用产品延长100%。
实例2
按质量比6:1,将季戊四醇油酸酯与高粘度指数中性油HVI-500混合,在35℃下搅拌1.2h,得混合油,向混合油中再加入相当于混合油质量4%的癸二酸二辛酯,继续搅拌1.5h,得复配基础油;称取6g二硫化钼,装入研钵中研磨,过100目筛,将过筛后的二硫化钼粉末与2.2g胆酸钠混合后,加入1.1L去离子水中,在45℃恒温水浴下,以300W超声波超声分散6h,随后转入离心机中,以3200r/min离心分离25min,收集上清液,将上清液以11000r/min离心分离35min,收集沉淀,并置于干燥箱中,在108℃下干燥至恒重,得单层结构二硫化钼;称取2g上述单层结构二硫化钼,6g烷基化二苯胺,装入研钵中研磨25min,再加入2g硫代磷酸三苯酯,0.6g三乙醇胺硼酸酯,继续研磨25min,随后出料得复合添加剂;按重量份数计,称取85份上述复配基础油,1份二异丙基萘磺酸钠,装入烧杯中,加热至55℃,并以350r/min搅拌25min,再加入1份石油磺酸钠,继续搅拌35min,随后加入11份上述复合添加剂,加热至80℃,并以900r/min搅拌1.5h,过滤并收集滤液,得低温抗燃液压油。
本发明的应用方法是:清洗液压油箱,清除剩油、废油和沉淀物后,再加入本发明制备的低温抗燃液压油,本发明制备的低温抗燃液压油具有良好的防锈性、抗氧化安定性,在-35℃下仍具有较好的抗凝和低温流动性,且具有优异的润滑性和抗磨性,使用时间较常用产品延长110%。
实例3
按质量比8:1,将季戊四醇油酸酯与高粘度指数中性油HVI-500混合,在40℃下搅拌2h,得混合油,向混合油中再加入相当于混合油质量5%的癸二酸二辛酯,继续搅拌2h,得复配基础油;称取8g二硫化钼,装入研钵中研磨,过100目筛,将过筛后的二硫化钼粉末与2.5g胆酸钠混合后,加入1.2L去离子水中,在50℃恒温水浴下,以300W超声波超声分散8h,随后转入离心机中,以4000r/min离心分离30min,收集上清液,将上清液以12000r/min离心分离40min,收集沉淀,并置于干燥箱中,在110℃下干燥至恒重,得单层结构二硫化钼;称取3g上述单层结构二硫化钼,8g烷基化二苯胺,装入研钵中研磨30min,再加入3g硫代磷酸三苯酯,1.0g三乙醇胺硼酸酯,继续研磨30min,随后出料得复合添加剂;按重量份数计,称取90份上述复配基础油,2份二异丙基萘磺酸钠,装入烧杯中,加热至60℃,并以400r/min搅拌30min,再加入2份石油磺酸钠,继续搅拌40min,随后加入12份上述复合添加剂,加热至90℃,并以1000r/min搅拌2h,过滤并收集滤液,得低温抗燃液压油。
本发明的应用方法是:清洗液压油箱,清除剩油、废油和沉淀物后,再加入本发明制备的低温抗燃液压油,本发明制备的低温抗燃液压油具有良好的防锈性、抗氧化安定性,在-40℃下仍具有较好的抗凝和低温流动性,且具有优异的润滑性和抗磨性,使用时间较常用产品延长120%。

Claims (1)

1.一种低温抗燃液压油的制备方法,其特征在于具体制备步骤为:
(1)按质量比5:1~8:1,将季戊四醇油酸酯与高粘度指数中性油HVI-500混合,在30~40℃下搅拌1~2h,得混合油,向混合油中再加入相当于混合油质量3~5%的癸二酸二辛酯,继续搅拌1~2h,得复配基础油,备用;
(2)称取5~8g二硫化钼,装入研钵中研磨,过100目筛,将过筛后的二硫化钼粉末与1.8~2.5g胆酸钠混合后,加入1.0~1.2L去离子水中,在40~50℃恒温水浴下,以300W超声波超声分散5~8h,随后转入离心机中,以3000~4000r/min离心分离20~30min,收集上清液,将上清液以10000~12000r/min离心分离30~40min,收集沉淀,并置于干燥箱中,在105~110℃下干燥至恒重,得单层结构二硫化钼;
(3)称取1~3g上述单层结构二硫化钼,3~8g烷基化二苯胺,装入研钵中研磨20~30min,再加入1~3g硫代磷酸三苯酯,0.1~1.0g三乙醇胺硼酸酯,继续研磨20~30min,随后出料得复合添加剂;
(4)按重量份数计,称取80~90份步骤(1)备用的复配基础油,1~2份二异丙基萘磺酸钠,装入烧杯中,加热至50~60℃,并以300~400r/min搅拌20~30min,再加入1~2份石油磺酸钠,继续搅拌30~40min,随后加入10~12份上述复合添加剂,加热至70~90℃,并以800~1000r/min搅拌1~2h,过滤并收集滤液,得低温抗燃液压油。
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CN113621431A (zh) * 2021-09-04 2021-11-09 陈伟民 一种可降解微量自修复功能润滑油及制配方法
CN114196458A (zh) * 2021-12-21 2022-03-18 徐州徐工液压件有限公司 一种起重机用液压油极压抗磨添加剂

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