CN107142137A - 复合钠‑脲基润滑脂及其制备方法 - Google Patents

复合钠‑脲基润滑脂及其制备方法 Download PDF

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CN107142137A
CN107142137A CN201710362386.4A CN201710362386A CN107142137A CN 107142137 A CN107142137 A CN 107142137A CN 201710362386 A CN201710362386 A CN 201710362386A CN 107142137 A CN107142137 A CN 107142137A
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urea
compound sodium
base grease
oil
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周忠太
李保莉
周征寰
宋尚珍
王利霞
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Xinxiang Hengxing Technology Co Ltd
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Abstract

本发明提供一种复合钠‑脲基润滑脂,由以下重量份的原料制备而成的:基础油75‑85份、异氰酸酯5‑9份、有机胺3.5‑8.5份、有机酸0.5‑2份、氢氧化钠0.3‑1.5份和添加剂1‑2份。本发明提供的复合钠‑脲基润滑脂具有良好的粘附性,极压抗磨性和抗氧化性能,特别是在高温下能够延长轴承寿命。

Description

复合钠-脲基润滑脂及其制备方法
技术领域
本发明涉及润滑脂技术领域,尤其涉及复合钠-脲基润滑脂及其制备方法。
背景技术
随着我国工业和军事的快速发展,市场上对润滑脂的要求越来越高,目前市场上的脲基脂很多,但脲基脂的机械安定性差,粘附性不好,而且生产成本高,限制了脲基脂的应用,所以迫切需要研制更高性能的润滑脂来适应市场的需要。
发明内容
本发明的目的是提供复合钠-脲基润滑脂及其制备方法,所制备的复合钠-脲基润滑脂的具有良好的粘附性,极压抗磨性和抗氧化性能。
为了解决上述技术问题,本发明提供的复合钠-脲基润滑脂及其制备方法是这样实现的:
一种复合钠-脲基润滑脂,由以下重量份的原料制备而成的:基础油75-85份、异氰酸酯5-9份、有机胺3.5-8.5份、有机酸0.5-2份、氢氧化钠0.3-1.5份和添加剂1-2份。
可选的,所述添加剂为:有机胺抗氧剂、抗氧抗腐剂和极压抗磨剂。
可选的,所述有机胺抗氧剂为二苯胺,重量份为0.4-0.8份。
可选的,所述抗氧抗腐剂为二烷基二硫代磷酸锌T202,重量份为0.5-1.0份。
可选的,极压抗磨剂为硼酸盐T361B,重量份为0.8-1.5份。
可选的,所述异氰酸酯为二异氰酸酯或多异氰酸酯。
可选的,所述有机胺为:C8-C24的脂肪胺一种或多种的组合。
可选的,所述有机酸为:所述的有机酸为C2-C4的有机酸的一种或者多种。
可选的,所述基础油为:矿物油或者合成油或者两者的混合。
复合钠-脲基润滑脂的制备方法,包括以下合成步骤:
(1)取基础油50份加热升温至80℃后,分成两份,一份加有机胺,另一份加异氰酸酯,分别搅拌10min混合均匀,然后将有机胺油溶液缓慢加入异氰酸酯的油溶液中进行反应,温度控制在50-90℃,反应时间控制在30min左右;
(2)加入浓度为10-20%的氢氧化钠水溶液,温度控制在80-100℃,恒温搅拌均匀;
(3)将有机酸与余下的基础油混合,搅拌均匀,然后将其缓慢加入到反应好的(2)中,温度控制在90-110℃,反应时间控制在60-90min;
(4)缓慢升温脱水,脱完水后温度升到180℃进行炼制;
(5)降温到90℃左右时,加入添加剂,搅拌均匀后过均质机出脂。
本发明选用普通工业原料,采用简单的制备方法,通过向聚脲分子中引入羧酸钠盐制备出复合钠-脲基润滑脂。本发明所制备的复合钠-脲基润滑脂的具有良好的粘附性,极压抗磨性和抗氧化性能,特别是在高温下能够延长轴承寿命。并且在具有优异性能的前提下,控制了生产成本,扩大了聚脲润滑脂的适用范围。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白,以下实施例,对本发明进行进一步详细说明。应当理解,此处所描述的具体实施例仅仅用以解释本发明,并不用于限定本发明。
实施例一
1、取部分矿物油50kg加热升温到80℃,分成两份,一份加5.4kg对甲苯胺和2.1kg环己胺,一份加8kg4,4-二苯基甲烷二异氰酸酯,分别搅拌10min后,将有机胺的油溶液缓慢加入到4,4-二苯基甲烷二异氰酸酯的油溶液中进行反应,温度控制在50-90℃,反应时间为30min。
2、将1kg氢氧化钠10%的水溶液加入到上述反应中,温度控制在80-100℃,恒温搅拌均匀。
3、将1.5kg丁二酸和剩下的30kg矿物油混合后加入到反应釜中,温度控制在100℃左右,反应60min。
4、缓慢升温脱水,脱完水后温度升到180℃。
5、降温到90℃左右时,加入添加剂0.5kg二苯胺,0.5kg二烷基二硫代磷酸锌T202,1kg硼酸盐T361B,搅拌均匀后过均质机出脂。
本实施例制备的复合钠-脲基润滑脂,黏附性在[(66±1)℃,(150±10)r/min]的条件下测试达到95,极压抗磨性能测试达1200N,起始氧化温度高达210℃,因此其具有良好的粘附性,极压抗磨性和抗氧化性能,特别是在高温下能够延长轴承寿命。
实施例二
1、取部分合成油50kg加热升温到80℃,分成两份,一份加7.5kg环己胺,一份加8kg甲苯-2,4- 二异氰酸酯,分别搅拌10min后,将有机胺的油溶液缓慢加入到甲苯二异氰酸酯的油溶液中进行反应,温度控制在50-90℃,反应时间为30min。
2、将1kg氢氧化钠10%的水溶液加入到上述反应中,温度控制在80-100℃,恒温搅拌均匀。
3、将1.5kg乙酸和剩下的30kg合成油混合后加入到反应釜中,温度控制在100℃左右,反应60min。
4、缓慢升温脱水,脱完水后温度升到180℃。
5、降温到90℃左右时,加入添加剂0.5kg二苯胺,0.5kg二烷基二硫代磷酸锌T202,1kg硼酸盐T361B,搅拌均匀后过均质机出脂。
本实施例制备的复合钠-脲基润滑脂,黏附性在[(66±1)℃,(150±10)r/min]的条件下测试达到92,极压抗磨性能测试达1190N,起始氧化温度高达208℃,因此其具有良好的粘附性,极压抗磨性和抗氧化性能,特别是在高温下能够延长轴承寿命。
实施例三
1、取合成油55kg加热升温到80℃,分成两份,一份加8.5kg十八胺,一份加5kg甲苯-2,4- 二异氰酸酯,分别搅拌10min后,将有机胺的油溶液缓慢加入到甲苯二异氰酸酯的油溶液中进行反应,温度控制在50-90℃,反应时间为30min。
2、将1kg氢氧化钠10%的水溶液加入到上述反应中,温度控制在80-100℃,恒温搅拌均匀。
3、将0.5kg乙酸和剩下的20kg矿物油混合后加入到反应釜中,温度控制在100℃左右,反应60min。
4、缓慢升温脱水,脱完水后温度升到180℃。
5、降温到90℃左右时,加入添加剂0.5kg二苯胺,0.5kg二烷基二硫代磷酸锌T202,1kg硼酸盐T361B,搅拌均匀后过均质机出脂。
本实施例制备的复合钠-脲基润滑脂,黏附性在[(66±1)℃,(150±10)r/min]的条件下测试达到91,极压抗磨性能测试达1180N,起始氧化温度高达207℃,因此其具有良好的粘附性,极压抗磨性和抗氧化性能,特别是在高温下能够延长轴承寿命。
实施例四
1、取矿物油60kg加热升温到80℃,分成两份,一份加3.5kg十八胺,一份加9kg甲苯-2,4- 二异氰酸酯,分别搅拌10min后,将有机胺的油溶液缓慢加入到甲苯-2,4- 二异氰酸酯的油溶液中进行反应,温度控制在50-90℃,反应时间为30min。
2、将1kg氢氧化钠10%的水溶液加入到上述反应中,温度控制在80-100℃,恒温搅拌均匀。
3、将0.2kg丁二酸和剩下的25kg矿物油混合后加入到反应釜中,温度控制在100℃左右,反应60min。
4、缓慢升温脱水,脱完水后温度升到180℃。
5、降温到90℃左右时,加入添加剂0.5kg二苯胺,0.5kg二烷基二硫代磷酸锌T202,1kg硼酸盐T361B,搅拌均匀后过均质机出脂。
本实施例制备的复合钠-脲基润滑脂,黏附性在[(66±1)℃,(150±10)r/min]的条件下测试达到96,极压抗磨性能测试达1210N,起始氧化温度高达215℃,因此其具有良好的粘附性,极压抗磨性和抗氧化性能,特别是在高温下能够延长轴承寿命。
以上所述仅为本发明的较佳实施例而已,并不用以限制本发明,凡在本发明的精神和原则之内所作的任何修改、等同替换和改进等,均应包含在本发明的保护范围之内。

Claims (10)

1.一种复合钠-脲基润滑脂,其特征在于,由以下重量份的原料制备而成的:基础油75-85份、异氰酸酯5-9份、有机胺3.5-8.5份、有机酸0.5-2份、氢氧化钠0.3-1.5份和添加剂1-2份。
2.根据权利要求1所述的复合钠-脲基润滑脂,其特征在于,所述添加剂为:有机胺抗氧剂、抗氧抗腐剂和极压抗磨剂。
3.根据权利要求2所述的复合钠-脲基润滑脂,其特征在于,所述有机胺抗氧剂为二苯胺,重量份为0.4-0.8份。
4.根据权利要求2所述的复合钠-脲基润滑脂,其特征在于,所述抗氧抗腐剂为二烷基二硫代磷酸锌T202,重量份为0.5-1.0份。
5.根据权利要求2所述的复合钠-脲基润滑脂,其特征在于,极压抗磨剂为硼酸盐T361B,重量份为0.8-1.5份。
6.根据权利要求1所述的复合钠-脲基润滑脂,其特征在于,所述异氰酸酯为二异氰酸酯或多异氰酸酯。
7.根据权利要求1所述的复合钠-脲基润滑脂,其特征在于,所述有机胺为:C8-C24的脂肪胺一种或多种的组合。
8.根据权利要求1所述的复合钠-脲基润滑脂,其特征在于,所述有机酸为:所述的有机酸为C2-C4的有机酸的一种或者多种。
9.根据权利要求1所述的复合钠-脲基润滑脂,其特征在于,所述基础油为:矿物油或者合成油或者两者的混合。
10.权利要求1所述的复合钠-脲基润滑脂的制备方法,其特征在于,包括以下合成步骤:
(1)取基础油50份加热升温至80℃后,分成两份,一份加有机胺,另一份加异氰酸酯,分别搅拌10min混合均匀,然后将有机胺油溶液缓慢加入异氰酸酯的油溶液中进行反应,温度控制在50-90℃,反应时间控制在30min左右;
(2)加入浓度为10-20%的氢氧化钠水溶液,温度控制在80-100℃,恒温搅拌均匀;
(3)将有机酸与余下的基础油混合,搅拌均匀,然后将其缓慢加入到反应好的(2)中,温度控制在90-110℃,反应时间控制在60-90min;
(4)缓慢升温脱水,脱完水后温度升到180℃进行炼制;
(5)降温到90℃左右时,加入添加剂,搅拌均匀后过均质机出脂。
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CN109971528A (zh) * 2019-03-26 2019-07-05 常熟理工学院 一种复合钠基四聚脲润滑脂及其制备方法

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CN102876427A (zh) * 2012-10-29 2013-01-16 郭小川 一种复合钠-脲润滑脂及其制备方法

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