CN115491244A - 一种减震抗磨高温润滑脂组合物及其制备方法 - Google Patents
一种减震抗磨高温润滑脂组合物及其制备方法 Download PDFInfo
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- CN115491244A CN115491244A CN202211218892.3A CN202211218892A CN115491244A CN 115491244 A CN115491244 A CN 115491244A CN 202211218892 A CN202211218892 A CN 202211218892A CN 115491244 A CN115491244 A CN 115491244A
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Abstract
本申请涉及润滑脂领域,具体而言,涉及一种减震抗磨高温润滑脂组合物及其制备方法,按质量百分数计包括以下组分:基础油38.5%‑70.2%;稠化剂10%‑28%;增黏剂:10.5%‑35%;防锈剂:0.4%‑2%;极压抗磨剂:1%‑5%;抗氧化剂:0.5%‑2.5%;抗氧抗腐剂:0.5%‑2.5%;其中,所述稠化剂包括氢氧化锂、氢氧化钙、12‑羟基硬脂酸和葵二酸,本申请的润滑脂,其耐高温性能优异,适用于高速运转的离心机轴承,以及其他的高温轴承,其具有优异的高温性、抗磨性、减震性等,能够在长期高温的工况下,让轴承保持良好的润滑效果。
Description
技术领域
本申请涉及润滑脂领域,具体而言,涉及一种减震抗磨高温润滑脂组合物及其制备方法。
背景技术
润滑剂用于减小摩擦的能量损耗,保护机械的摩擦面,延长机械的使用寿命,其在工业生产中应用广泛。离心机在进行高速离心工作时,其轴承的温度较高,若润滑脂失效,则会直接导致轴承高温卡死。
目前,用于离心机轴承的润滑脂的耐高温性能差,离心机在高速运动下,润滑脂容易失效。例如锂基润滑脂,其使用温度在-20℃-120℃,在超过200℃的环境下使用时,锂基润滑脂的理化性质发生改变,失去润滑功效,再者,在长时间在高温工况下,润滑脂的润滑性能急速下降,导致部件的磨损加剧,降低了部件的使用寿命。
发明内容
本申请的目的在于提供一种减震抗磨高温润滑脂组合物,其耐高温性能优异,适用于高速运转的离心机轴承,以及其他的高温轴承,其具有优异的高温性、抗磨性、减震性等,能够在长期高温的工况下,让轴承保持良好的润滑效果。
本申请的另一目的在于提供一种减震抗磨高温润滑脂组合物的制备方法,通过加热和研磨的方法制得该润滑脂组合物,其制备方法简单,对设备的要求低。
本申请解决其技术问题是采用以下技术方案来实现的。
一方面,本申请实施例提供一种减震抗磨高温润滑脂组合物,按质量百分数计包括以下组分:基础油38.5%-70.2%;稠化剂10%-28%;增黏剂: 10.5%-35%;防锈剂:0.4%-2%;极压抗磨剂:1%-5%;抗氧化剂:0.5%- 2.5%;抗氧抗腐剂:0.5%-2.5%;
其中,所述稠化剂包括氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸。
另一方面,本申请实施例提供一种减震抗磨高温润滑脂组合物的制备方法,其包括以下步骤:将第一部分基础油与稠化剂混合,搅拌加热至 90-100℃;
加入氢氧化钙和氢氧化锂,皂化反应30-40min;升温至140-160℃,加入剩余的基础油,继续升温至205-210℃,加入防锈剂;
冷却至室温,加入剩余原料,研磨。
相对于现有技术,本申请的实施例至少具有如下优点或有益效果:
在本申请提供的减震抗磨高温润滑脂组合物中,以基础油为主要成分,将基础油与氢氧化锂稠化剂、高粘增黏剂进行复配,提高润滑脂的高温稳定性;以氢氧化锂、氢氧化钙和12-羟基硬脂酸的复配物作为稠化剂,该稠化剂既具有复合锂的高温性能,又具有复合钙的抗水性,使得润滑脂在240℃高温的有水环境下,仍具有优异的润滑效果;增稠剂的加入可提高润滑脂的粘附性,进而提高润滑脂与被润滑部件的附着力,在使用时,润滑脂与轴承等部件的附着力强,避免在使用过程中,润滑脂因轴承的转动而与轴承分离,导致润滑失效,进而可减小设备在运转过程中的震动。在润滑脂中加入极压抗磨剂,润滑脂在高极压冲击负荷下,仍具有抗磨性和抗氧化性。
在各原料的配合下,该润滑脂具有优异的高温性,抗磨性,减震性,降噪性,抗水性,应用在高速离心机轴承上,可防止轴承高温卡死,降低轴承座震动,能够长期高温下让轴承保持润滑;增加设备使用寿命。
本申请提高的制备方法,其先将一部分的基础油与稠化剂中的12-羟基硬脂酸和葵二酸混合,搅拌并升温至90-100℃,使得基础油与酸混合均匀,随后再加入氢氧化钙和氢氧化锂,体系中发生皂化反应,在体系中生钙皂和锂皂,以提高润滑脂的抗水淋性、抗磨性。
附图说明
为了更清楚地说明本申请实施例的技术方案,下面将对实施例中所需要使用的附图作简单地介绍,应当理解,以下附图仅示出了本申请的某些实施例,因此不应被看作是对范围的限定,对于本领域普通技术人员来讲,在不付出创造性劳动的前提下,还可以根据这些附图获得其他相关的附图。
图1为本申请实验例中抗水淋前后对比图;
图2为本申请实验例中烘烤后润滑脂的形貌图。
其中,图1所使用的润滑脂为实施例1制得;图2中,a图为实施例 1制得的润滑脂,b图为市面购得的锂基脂。
具体实施方式
为使本申请实施例的目的、技术方案和优点更加清楚,下面将对本申请实施例中的技术方案进行清楚、完整地描述。实施例中未注明具体条件者,按照常规条件或制造商建议的条件进行。所用试剂或仪器未注明生产厂商者,均为可以通过市售购买获得的常规产品。
需要说明的是,在不冲突的情况下,本申请中的实施例及实施例中的特征可以相互组合。下面将参考具体实施例来详细说明本申请。
一方面,本申请实施例提供一种减震抗磨高温润滑脂组合物,按质量百分数计包括以下组分:基础油38.5%-70.2%;稠化剂10%-28%;增黏剂: 10.5%-35%;防锈剂:0.4%-2%;极压抗磨剂:1%-5%;抗氧化剂:0.5%- 2.5%;抗氧抗腐剂:0.5%-2.5%;
其中,所述稠化剂包括氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸。氢氧化锂和氢氧化钙为无机化合物,其与12-羟基硬脂酸和葵二酸混合后皂化,用作稠化剂,该稠化剂既具有复合锂的高温性能,又具有复合钙的抗水性,使得润滑脂在240℃高温的有水环境下,仍具有优异的润滑效果。
在本申请的一些实施例中,上述润滑脂中的基础油为聚α烯烃PAO。
聚α烯烃PAO是由乙烯经聚合反应制成α烯烃,再进一步经聚合及氢化而制成,具有良好的粘温性能和低温流动性。根据粘度的不同,可以分为低粘度PAO,中粘度PAO和高粘度PAO;低粘度:PAO2,PAO2.5,PAO4, PAO5,PAO6,PAO7,PAO8,PAO9,PAO10等;中粘度:包括PAO25等;高粘度:包括PAO40,PAO100,PAO150,PAO300等。
在本申请的一些实施例中,所述极压抗磨剂为是硫化三异丁烯、硫化异丁烯、氯化石蜡、环烷酸铅和二烷基二硫代磷酸锌中的一种或多种;
所述抗氧化剂为二烷基二苯胺或2,6-二叔丁基苯酚或两者的混合物,抗氧抗腐剂为聚异丁烯或硫磷双辛基锌盐或两者的混合物。以二烷基二苯胺和2,6-二叔丁基苯酚的混合物作为抗氧化剂,其可显著的提高润滑脂的抗氧化性,相较于单一的抗氧化剂,复合抗氧化剂的效果更优。
在本申请的一些实施例中,氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的质量比为(2-5):(0.5-2):(1-3):1。通过该比例复配的稠化剂,其具有优异的抗水淋性和高温性。为进一步的提高润滑脂的高温性,在本申请的一些实施例中,氢氧化锂、氢氧化钙和12-羟基硬脂酸的质量比为3:1:2:1,在该比例范围内,润滑脂的高温性能、抗水淋性以及抗磨性等综合性能达到最优,润滑脂的效果最好。
在本申请的一些实施例中,上述润滑脂中的增黏剂具体为聚异丁烯 PB2400和500N胶的混合物。聚异丁烯PB2400和500N胶的复配,可提高润滑脂的粘附性,使得润滑脂具有非常好的拉丝性,能够让润滑脂附着在轴承上,起到让设备减少震动的作用。其中,在本申请中所用到的500N 胶指的是型号为500N的基础油与牌号为J-0010胶(三元乙丙橡胶)混合调制而成,其中J0010胶购买于中国石油天然气股份有限公司吉林石化分公司,500N基础油购买于广州厚升新材料有限公司。
在本申请的一些实施例中,聚异丁烯PB2400和500N胶的质量比为 1:1。其中,聚异丁烯PB2400购于上海三联实业有限公司。
在本申请的一些实施例中,上述润滑脂中的防锈剂为磺酸盐或石油环烷基金属盐。在润滑脂中加入防锈剂,可防止轴承在有水的工况下生锈,提高润滑脂的防腐性能。
其中石油环烷基金属盐可以是环烷酸锌、环烷酸镁、环烷酸钙、石油磺酸盐、十二烯丁二酸酯等。
另一方面,本申请的一些实施例中提供减震抗磨高温润滑脂组合物的制备方法,包括以下步骤,
将第一部分基础油与12-羟基硬脂酸和葵二酸混合,搅拌加热至90- 100℃;
加入氢氧化钙和氢氧化锂,皂化反应30-40min;升温至140-160℃,加入剩余的基础油,继续升温至205-210℃,加入防锈剂;
冷却至室温,加入剩余原料,研磨。
其研磨次数为3-5次。
在本申请的实施例中,分多次加入基础油,一是因为基础油再与12- 羟基硬脂酸和葵二酸混合加热的过程中,反应体系易膨胀,以至于溢出反应容器外,二是因为一次加入全部的基础溶,其于物质在反应体系中的浓度较低,尤其是稠化剂各原料的浓度较小,稠化剂各原料之间不容易接触,导致皂化反应不完全,进而影响润滑脂的性能。
以下结合实施例对本申请的特征和性能作进一步的详细描述。
实施例1
按入下质量百分比,准备给原料:
聚α烯烃PAO:70.2%;稠化剂10%;增黏剂:20%;防锈剂:1%;极压抗磨剂:3.8%;抗氧化剂:2.5%;抗氧抗腐剂:2%;其中,稠化剂为氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的混合物,四者的质量比为 3:1:2:1。
增黏剂为聚异丁烯PB2400和500N胶的混合物,二者的质量比为1:1。除锈剂为C14-C22的石油磺酸钠,极压抗磨剂为硫化异丁烯。抗氧化剂为二烷基二苯胺,抗氧抗腐剂为聚异丁烯。
按照如下方法制备本实施例的润滑脂:
将聚α烯烃PAO总质量的30%,加入到反应釜中,再加入稠化剂中的 12-羟基硬脂酸和葵二酸,加热搅拌,待反应釜中的物料升温至100±1℃时,再向反应釜中加入氢氧化锂和氢氧化钙,在该温度下皂化反应30min,随后升温至140±1℃,向反应釜中加入剩余的聚α烯烃PAO,继续加热升温至205±1℃,加入防锈剂,搅拌均匀后自然冷却至室温,再加入剩余的原料,用三辊研磨3次,既得到本实施例的润滑脂。
实施例2
按入下质量百分比,准备给原料:
聚α烯烃PAO:65%;稠化剂15%;增黏剂:13.5%;防锈剂:0.4%;极压抗磨剂:2%;抗氧化剂:2.1%;抗氧抗腐剂:2%;其中,稠化剂为氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的混合物,四者的质量比为 3:1:2:1。
增黏剂为聚异丁烯PB2400和500N胶的混合物,二者的质量比为1:1。除锈剂为环烷酸锌,极压抗磨剂为硫化三异丁烯。抗氧化剂为氯化石蜡,抗氧抗腐剂为硫磷双辛基锌盐。
按照如下方法制备本实施例的润滑脂:
将聚α烯烃PAO总质量的30%,加入到反应釜中,再加入稠化剂中的 12-羟基硬脂酸和葵二酸,加热搅拌,待反应釜中的物料升温至90±1℃时,再向反应釜中加入氢氧化锂和氢氧化钙,在该温度下皂化反应30min,随后升温至160±1℃,向反应釜中加入剩余的聚α烯烃PAO,继续加热升温至205±1℃,加入防锈剂,搅拌均匀后自然冷却至室温,再加入剩余的原料,用三辊研磨5次,既得到本实施例的润滑脂。
实施例3
按入下质量百分比,准备给原料:
聚α烯烃PAO:50%;稠化剂20%;增黏剂:21%;防锈剂:2%;极压抗磨剂:5%;抗氧化剂:1.5%;抗氧抗腐剂:0.5%;其中,稠化剂为氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的混合物,四者的质量比为 3:1:2:1。
增黏剂为聚异丁烯PB2400和500N胶的混合物,二者的质量比为1:1。除锈剂为C14-C22的石油磺酸钠,极压抗磨剂为硫化异丁烯。抗氧化剂为二烷基二苯胺,抗氧抗腐剂为聚异丁烯。
按照如下方法制备本实施例的润滑脂:
将聚α烯烃PAO总质量的30%,加入到反应釜中,再加入稠化剂中的 12-羟基硬脂酸和葵二酸,加热搅拌,待反应釜中的物料升温至100±1℃时,再向反应釜中加入氢氧化锂和氢氧化钙,在该温度下皂化反应30min,随后升温至160±1℃,向反应釜中再加入30%聚α烯烃PAO,搅拌均匀后,再加入剩余的聚α烯烃PAO,继续加热升温至210±1℃,加入防锈剂,搅拌均匀后自然冷却至室温,再加入剩余的原料,用三辊研磨5次,既得到本实施例的润滑脂。
实施例4
按入下质量百分比,准备给原料:
聚α烯烃PAO:38.5%;稠化剂18%;增黏剂:35%;防锈剂:1.8%;极压抗磨剂:3.7%;抗氧化剂:0.5%;抗氧抗腐剂:2.5%;其中,稠化剂为氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的混合物,四者的质量比为3:1:2:1
增黏剂为聚异丁烯PB2400和500N胶的混合物,二者的质量比为1:1。除锈剂为环烷酸镁,极压抗磨剂为环烷酸铅。抗氧化剂为二烷基二苯胺和 2,6-二叔丁基苯酚的混合物,二者的质量比为3:7,抗氧抗腐剂为硫磷双辛基锌盐。
按照如下方法制备本实施例的润滑脂:
将聚α烯烃PAO总质量的30%,加入到反应釜中,再加入稠化剂中的 12-羟基硬脂酸和葵二酸,加热搅拌,待反应釜中的物料升温至95±1℃时,再向反应釜中加入氢氧化锂和氢氧化钙,在该温度下皂化反应30min,随后升温至150±1℃,向反应釜中加入剩余的聚α烯烃PAO,继续加热升温至205±1℃,加入防锈剂,搅拌均匀后自然冷却至室温,再加入剩余的原料,用三辊研磨3次,既得到本实施例的润滑脂。
实施例5
按入下质量百分比,准备给原料:
聚α烯烃PAO:58%;稠化剂28%;增黏剂:10.5%;防锈剂:0.5%;极压抗磨剂:1%;抗氧化剂:1%;抗氧抗腐剂:1%;其中,稠化剂为氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的混合物,四者的质量比为 3:1:2:1。
增黏剂为聚异丁烯PB2400和500N胶的混合物,二者的质量比为1:1。除锈剂为十二烯丁二酸酯和环烷酸钙,极压抗磨剂为环烷酸铅和二烷基二硫代磷酸锌。抗氧化剂为二烷基二苯胺或2,6-二叔丁基苯酚,抗氧抗腐剂为聚异丁烯。
按照如下方法制备本实施例的润滑脂:
将聚α烯烃PAO总质量的30%,加入到反应釜中,再加入稠化剂中的 12-羟基硬脂酸和葵二酸,加热搅拌,待反应釜中的物料升温至100±1℃时,再向反应釜中加入氢氧化锂和氢氧化钙,在该温度下皂化反应30min,随后升温至140±1℃,向反应釜中加入剩余的聚α烯烃PAO,继续加热升温至205±1℃,加入防锈剂,搅拌均匀后自然冷却至室温,再加入剩余的原料,用三辊研磨3次,既得到本实施例的润滑脂。
实施例6
本实施例与实施例5的不同之处在于,在本实施例中,所用到的稠化剂为氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的混合物,四者的质量比为2:1:3:1。
实施例7
本实施例与实施例5的不同之处在于,在本实施例中,所用到的稠化剂为氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的混合物,四者的质量比为5:2:1.5:1。
实施例8
本实施例与实施例5的不同之处在于,在本实施例中,所用到的稠化剂为氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的混合物,四者的质量比为5:2:1:1。
实验例
以实施例1-5制备的润滑脂为实验对象,选取市面购得的锂基润滑脂为对比例,以SH-T0109的测试方法,测试实施例1-5和对比例润滑脂的抗水淋性,其结果如表1所示。
表1实施例1-5和对比例润滑脂抗水淋数据
从表1中可以得出,实施例1-5制备的润滑脂,其抗水淋性能优异,在38℃下水淋1h后,其润滑脂的损失量在4%-4.1%之间,损失的量较少,而对比例(市面购得的锂基润滑脂)的损失量为10%,其明显高于本发明实施例1-5的润滑脂的损失量,由此可以说明,实施例1-5制备的润滑脂的抗水淋性能优异,将实施例1-5的润滑脂应用在离心机轴承上,可有水的条件下使用,其润滑脂的附着性能优异,润滑脂不易脱落,进而对轴承的润滑效果好。
图1为实施例1的润滑脂水淋前后的对比图,从图中可以看出,在经过水淋实验后,轴承中润滑脂的损失量少。
以实施例1制备的润滑脂为实验对象,选取市面购得的锂基润滑脂为对比例,进行高温性能测试,其测试方法如下所示:将各润滑脂放置在金属容器中,再置于200℃的烘箱中,烘烤1h,观察烘烤两组润滑脂的外观、润滑性等性能,烘烤后的润滑脂如图2所示,其中图2中A为实施例1的润滑脂,图2中的B为市面购得的锂基脂,从图2中可以看出,实施例1 的润滑脂在经过200℃的高温烘烤后,其颜色和形态均未发生变化,其仍具有润滑效果。而对比例的锂基脂颜色变黑,变硬,已严重结焦,失去的润滑效果。由此可见,本实施例1中制备的润滑脂,其在200℃的高温下,仍能保持润滑脂的原始的形态,润滑脂未发生明显的变化,说明本实施例的润滑脂具有耐高温性,在高温下仍具有优异的润滑效果。
综上所述,本申请实施例提供的减震抗磨高温润滑脂组合物和制备方法,以基础油为主要成分,将基础油与氢氧化锂稠化剂、高粘增黏剂进行复配,提高润滑脂的高温稳定性;以氢氧化锂、氢氧化钙和12-羟基硬脂酸的复配物作为稠化剂,该稠化剂既具有复合锂的高温性能,又具有复合钙的抗水性,使得润滑脂在240℃高温的有水环境下,仍具有优异的润滑效果;增稠剂的加入可提高润滑脂的粘附性,进而提高润滑脂与被润滑部件的附着力,在使用时,润滑脂与轴承等部件的附着力强,避免在使用过程中,润滑脂因轴承的转动而与轴承分离,导致润滑失效,进而可减小设备在运转过程中的震动。在润滑脂中加入极压抗磨剂,润滑脂在高极压冲击负荷下,仍具有抗磨性和抗氧化性。
在各原料的配合下,该润滑脂具有优异的高温性,抗磨性,减震性,降噪性,抗水性,应用在高速离心机轴承上,可防止轴承高温卡死,降低轴承座震动,能够长期高温下让轴承保持润滑;增加设备使用寿命。
本申请提高的制备方法,其先将一部分的基础油与稠化剂中的12-羟基硬脂酸和葵二酸混合,搅拌并升温至90-100℃,使得基础油与酸混合均匀,随后再加入氢氧化钙和氢氧化锂,体系中发生皂化反应,在体系中生钙皂和锂皂,以提高润滑脂的抗水淋性、抗磨性。
以上所描述的实施例是本申请一部分实施例,而不是全部的实施例。本申请的实施例的详细描述并非旨在限制要求保护的本申请的范围,而是仅仅表示本申请的选定实施例。基于本申请中的实施例,本领域普通技术人员在没有作出创造性劳动前提下所获得的所有其他实施例,都属于本申请保护的范围。
Claims (10)
1.一种减震抗磨高温润滑脂组合物,其特征在于,按质量百分数计包括以下组分:基础油38.5%-70.2%;稠化剂10%-28%;增黏剂:10.5%-35%;防锈剂:0.4%-2%;极压抗磨剂:1%-5%;抗氧化剂:0.5%-2.5%;抗氧抗腐剂:0.5%-2.5%;
其中,所述稠化剂包括氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸。
2.根据权利要求1所述的减震抗磨高温润滑脂组合物,其特征在于,所述基础油为聚α烯烃PAO。
3.根据权利要求1所述的减震抗磨高温润滑脂组合物,其特征在于,所述极压抗磨剂为是硫化三异丁烯、硫化异丁烯、氯化石蜡、环烷酸铅和二烷基二硫代磷酸锌中的一种或多种;
所述抗氧化剂为二烷基二苯胺或2,6-二叔丁基苯酚,抗氧抗腐剂为聚异丁烯或硫磷双辛基锌盐或两者的混合物。
4.根据权利要求1所述的减震抗磨高温润滑脂组合物,其特征在于,所述氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的质量比为(2-5):(0.5-2):(1-3):1。
5.根据权利要求1所述的减震抗磨高温润滑脂组合物,其特征在于,所述氢氧化锂、氢氧化钙、12-羟基硬脂酸和葵二酸的质量比为3:1:2:1。
6.根据权利要求1所述的减震抗磨高温润滑脂组合物,其特征在于,所述增黏剂包括聚异丁烯PB2400和500N胶。
7.根据权利要求1所述的减震抗磨高温润滑脂组合物,其特征在于,聚异丁烯PB2400和500N胶的质量比为1:1。
8.根据权利要求1所述的减震抗磨高温润滑脂组合物,其特征在于,所述防锈剂为磺酸盐或石油环烷基金属盐。
9.一种如权利要求1-8任一项所述的减震抗磨高温润滑脂组合物的制备方法,其特征在于,包括以下步骤,
将第一部分基础油与12-羟基硬脂酸和葵二酸混合,搅拌加热至90-100℃;
加入氢氧化钙和氢氧化锂,皂化反应30-40min;升温至140-160℃,加入剩余的基础油,继续升温至205-210℃,加入防锈剂;
冷却至室温,加入剩余原料,研磨。
10.根据权利要求6所述的减震抗磨高温润滑脂组合物的制备方法,其特征在于,研磨的次数为3-5次。
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