CN106635262B - 一种减速机润滑脂及其制备方法 - Google Patents

一种减速机润滑脂及其制备方法 Download PDF

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CN106635262B
CN106635262B CN201611108012.1A CN201611108012A CN106635262B CN 106635262 B CN106635262 B CN 106635262B CN 201611108012 A CN201611108012 A CN 201611108012A CN 106635262 B CN106635262 B CN 106635262B
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lubricating grease
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CN106635262A (zh
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武文平
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Suzhou Shanhe Xingcheng Material Technology Co ltd
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Abstract

本发明涉及一种减速机润滑脂及其制备方法，按重量百分含量计，所述减速机润滑脂的原料配方包括以下组分：基础油75‑91%；混合皂稠化剂3‑8%；自修复功能添加剂1‑2.5%；石墨烯或氧化石墨烯1‑2%；结构改善剂1‑18%；抗氧剂0.4‑1%；防锈剂0.2‑2%，其中，所述混合皂稠化剂为锂钙混合皂稠化剂。本发明的减速机润滑脂通过添加石墨烯使得润滑脂具有优异的抗磨性能，特别是协同自修复添加剂，抗磨性能非常突出，而且还具有优异的机械安定性和氧化安定性，抗水性能突出。

Description

一种减速机润滑脂及其制备方法
技术领域
本发明涉及润滑脂及其制备方法，具体涉及一种含有石墨烯基高分子润滑膜的减速机润滑脂及其制备方法。
背景技术
近年来，石墨烯逐渐进入人们的视线，在润滑脂中也得到了应用，如专利CN104560313A公开了一种复合锂钙基润滑脂及制备方法，该润滑脂采用基础油、复合锂钙稠化剂和石墨烯作为原料制备润滑脂，该专利中使用石墨烯主要是为了增强皂分子固化基础油的能力，而且石墨烯的分散性很难保证。
而对于减速机润滑脂，目前市场上常用的减速机润滑脂大都采用通用的润滑脂，能够满足一般减速机润滑、密封的要求，但市场上的润滑脂不能满足精密减速机对润滑脂的要求。后来也有出现针对减速机用润滑脂的专利，如中国专利CN103805322A公开了一种减速机润滑脂及其制备方法，该减速机润滑脂采用基础油、皂基稠化剂、胶溶剂、抗磨添加剂等制备减速机润滑脂，该减速机润滑脂具有好的耐温性，但其抗磨性和磨损自修复性差。而且未见到石墨烯应用在减速机润滑脂中的报道。
发明内容
本发明所要解决的技术问题是克服现有技术的不足，提供一种减速机润滑脂及其制备方法，该减速机润滑脂具有优异的抗磨性能。
为解决以上技术问题，本发明采用如下技术方案：
一种减速机润滑脂，按重量百分含量计，所述减速机润滑脂的原料配方包括以下组分：
其中，所述混合皂稠化剂为锂钙混合皂稠化剂。
根据本发明的进一步实施方案：
所述基础油为精制石蜡基、环烷基矿物油中的一种或几种的混合。
所述自修复功能添加剂为超高分子量聚乙烯粉末、超高分子量聚丙烯粉末、羟基硅酸镁复合物、纳米抗磨剂中的至少一种。
其中，所述羟基硅酸镁复合物是指羟基硅酸镁和其他分散剂的复合物。如北京奥克摩公司的ART。
所述锂钙混合皂稠化剂为锂基稠化剂和钙基稠化剂的混合物，其中，锂基稠化剂为硬脂酸锂、十二羟基硬脂酸锂中的一种或多种的组合，钙基稠化剂为硬脂酸钙、十二羟基硬脂酸钙中的一种或几种的混合。
优选地，所述锂基稠化剂和钙基稠化剂的质量比为9：1至7：3。
所述石墨烯为石墨烯粉末、石墨烯分散液、石墨烯浆料中的一种或几种的组合。
优选地，所述石墨烯采用分散性良好的石墨烯分散液或浆料，避免石墨烯在使用时由于团聚而降低自身的性能。
更优选地，所述石墨烯分散液包括碳源单层石墨烯分散液、上海新能量石墨烯分散液中的一种或几种的组合，所述石墨烯浆料包括油性石墨烯浆料。
所述石墨烯粉末如成都有机化学研究所TNRGO；所述油性石墨烯浆料如合肥微晶材料科技油性石墨烯浆料WJSG1420。
优选地，所述氧化石墨烯为氧化石墨烯浆料。
所述氧化石墨烯浆料包括碳源氧化石墨烯浆料。
当石墨烯或氧化石墨烯选用分散液或浆料时，配方中的石墨烯或氧化石墨烯的质量百分含量是以石墨烯或氧化石墨烯的质量来计算，而不是以分散液或浆料的质量计算。
所述抗氧剂是液态二苯胺、二异辛基二苯胺、高分子液态酚中的至少一种。
所述结构改善剂是乙丙共聚物、聚甲基丙烯酸甲酯、氢化苯乙烯嵌段共聚物、聚异丁烯中的一种或几种的组合。
所述防锈剂是十二烯基丁二酸酐、环烷酸锌、苯并三氮唑、噻二唑衍生物中的一种或几种的组合。
本发明中，全部原料均可通过商购和/或采取已知的手段来制备得到，没有加以特别说明时，均满足标准化工产品要求。
本发明的又一技术方案是：一种上述减速机润滑脂的制备方法，所述制备方法包括以下步骤：
(1)将基础油、混合皂稠化剂搅拌混合均匀，升温至200℃～220℃进行炼制，然后回流冷却至110℃～130℃均化分散；
(2)继续冷却，温度低于90℃时，加入自修复功能添加剂、石墨烯或氧化石墨烯、结构改善剂、抗氧剂和除锈剂，搅拌混合均匀，即得所述减速机润滑脂。
步骤(1)中，所述搅拌混合均匀的搅拌时间为40min～80min；所述炼制时间为15min～30min；所述均化分散采用均质机处理。
步骤(2)中，所述搅拌混合均匀的搅拌时间为30min～60min。
于上述技术方案的实施，本发明与现有技术相比具有如下优点：
本发明的减速机润滑脂通过添加石墨烯使得润滑脂具有优异的抗磨性能，特别是协同自修复添加剂，抗磨性能非常突出，而且还具有优异的机械安定性和氧化安定性，抗水性能突出。
本发明的润滑脂非常适用于精密减速机。
本发明的制备方法反应时间短，重复性稳定性高，明显优于现有技术。本发明的减速机润滑脂采用锂钙混合皂稠化剂，便于生产控制，简化工艺，提高生产效率。
具体实施方式
本发明配方中采用石蜡基和/或环烷基作为基础油，提高润滑脂油皂结合能力，稠化剂使用预制锂钙混合皂，便于生产控制，简化工艺，提高生产效率。
所述润滑脂是含有自修复功能和具有降噪性能的减速机润滑脂。该润滑脂具有极好的极压抗磨性和超长润滑寿命，同时还具有优良的金属磨损自修复，金属减活抗氧化，降噪音效果。
下面结合具体实施例对本发明做进一步详细的说明，但本发明并不限于以下实施例。
实施例1
将75g500N油、10gK10H油、5g混合皂稠化剂加入釜中混合搅拌60min，加热至210℃炼制15min，然后回流冷却至120℃均化分散，继续冷却，待温度低于90℃，按顺序依次将1g自修复功能添加剂北京奥克摩ART、4g油性石墨烯浆料WJSG1420(石墨烯含量30％)、1g乙丙共聚物(购自上海方田公司)、0.5g液态二苯胺、0.3g十二烯基丁二酸酐加入釜中，搅拌混合均匀，即得减速机润滑脂，其性能如表1所示。
上述混合皂稠化剂为硬脂酸锂和硬脂酸钙按质量比为8：2的混合物。
实施例2
将60g 500N油、23g150BS(国产)、5g混合皂稠化剂加入釜中混合搅拌60mi n，加热至210℃炼制15min，然后回流冷却至120℃均化分散，继续冷却，待温度低于90℃，按顺序依次将2g三井化学超高分子量聚乙烯粉末MIPELON、6g油性石墨烯浆料WJSG1420(石墨烯含量30％)、1.5g乙丙共聚物、0.6g高分子液态酚、0.3g苯并三氮唑加入釜中，搅拌混合均匀，即得减速机润滑脂，其性能如表1所示。
上述混合皂稠化剂为十二羟基硬脂酸锂和硬脂酸钙按质量比为8：2的混合物。
实施例3
将50g 500N油、35g150BS(国产)、4g混合皂稠化剂加入釜中混合搅拌60min，加热至210℃炼制20min，然后回流冷却至120℃均化分散，继续冷却，待温度低于90℃，按顺序依次将1.1g自修复功能添加剂北京奥克摩ART、1g石墨烯粉末成都有机化学研究所TNRGO、15g聚甲基丙烯酸甲酯、0.5g二异辛基二苯胺、0.5g环烷酸锌加入釜中，搅拌混合均匀，即得减速机润滑脂，其性能如表1所示。
上述混合皂稠化剂为十二羟基硬脂酸锂和硬脂酸钙按质量比为7：3的混合物。
实施例4
将40g 500SN油、40g150BS(国产)、5g混合皂稠化剂加入釜中混合搅拌60min，加热至210℃炼制15min，然后回流冷却至120℃均化分散，继续冷却，待温度低于90℃，按顺序依次将2g三井化学超高分子量聚乙烯粉末MIPELON、10g石墨烯分散液(来源于上海新能量纳米科技有限公司，石墨烯含量为10％)、15g聚异丁烯PB2400、0.5g二异辛基二苯胺、1g环烷酸锌加入釜中，搅拌混合均匀，即得减速机润滑脂，其性能如表1所示。
上述混合皂稠化剂为十二羟基硬脂酸锂和十二羟基硬脂酸钙按质量比为8：2的混合物。
对比例
该对比例为市售昆仑0号减速机润滑脂(-20℃)。
表1为实施例1～4和对比例的润滑脂的性能测试结果
以上对本发明做了详尽的描述，其目的在于让熟悉此领域技术的人士能够了解本发明的内容并加以实施，并不能以此限制本发明的保护范围，且本发明不限于上述的实施例，凡根据本发明的精神实质所作的等效变化或修饰，都应涵盖在本发明的保护范围之内。

Claims (7)

1.一种减速机润滑脂，其特征在于，按重量百分含量计，所述减速机润滑脂的原料配方包括以下组分：
基础油 75-91%；
混合皂稠化剂 3-8%；
自修复功能添加剂 1-2.5%；
石墨烯或氧化石墨烯 0.8-2%；
结构改善剂 1-18%；
抗氧剂 0.4-1%；
防锈剂 0.2-2%，
其中，所述混合皂稠化剂为锂钙混合皂稠化剂，所述锂钙混合皂稠化剂为锂基稠化剂和钙基稠化剂的混合物，其中，锂基稠化剂为硬脂酸锂、十二羟基硬脂酸锂中的一种或多种的组合，钙基稠化剂为硬脂酸钙、十二羟基硬脂酸钙中的一种或几种的混合；
所述自修复功能添加剂为超高分子量聚乙烯粉末、超高分子量聚丙烯粉末、羟基硅酸镁复合物中的至少一种；
所述结构改善剂是乙丙共聚物、聚甲基丙烯酸甲酯、氢化苯乙烯嵌段共聚物、聚异丁烯中的一种或几种的组合。
2.根据权利要求1所述的减速机润滑脂，其特征在于：所述基础油为精制石蜡基、环烷基矿物油中的一种或几种的混合。
3.根据权利要求1所述的减速机润滑脂，其特征在于：所述石墨烯为石墨烯粉末、石墨烯分散液、石墨烯浆料中的一种或几种的组合。
4.根据权利要求3所述的减速机润滑脂，其特征在于：所述石墨烯分散液包括碳源单层石墨烯分散液、上海新能量石墨烯分散液中的一种或几种的组合，所述石墨烯浆料包括油性石墨烯浆料。
5.根据权利要求1所述的减速机润滑脂，其特征在于：所述氧化石墨烯为氧化石墨烯浆料。
6.根据权利要求1所述的减速机润滑脂，其特征在于：所述防锈剂是十二烯基丁二酸酐、环烷酸锌、苯并三氮唑、噻二唑衍生物中的一种或几种的组合。
7.一种如权利要求1~6中任一项权利要求所述的减速机润滑脂的制备方法，其特征在于，所述制备方法包括以下步骤：
（1）将基础油、混合皂稠化剂搅拌混合均匀，升温至200℃~220℃进行炼制，然后回流冷却至110℃~130℃均化分散；
（2）继续冷却，温度低于90℃时，加入自修复功能添加剂、石墨烯或氧化石墨烯、结构改善剂、抗氧剂和防锈剂，搅拌混合均匀，即得所述减速机润滑脂。
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