CN115247094A - 一种聚脲-无水钙基润滑脂及其制备方法 - Google Patents
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Abstract
本发明公开了一种聚脲‑无水钙基润滑脂,由无水钙基脂与脲基脂组成,所述无水钙基脂由稠化剂A、基础油、防锈剂和抗氧剂组成,其中稠化剂A由氢氧化钙、硬脂酸和12羟基硬脂酸组成;所述脲基脂由稠化剂B、基础油、防锈剂和抗氧剂组成,其中稠化剂B由MDI、脂肪胺和脂环胺组成;所述聚脲‑无水钙基润滑脂中无水钙基脂的质量分数为25‑80%,脲基脂的质量分数为20‑75%。本发明的聚脲‑无水钙基润滑脂的润滑脂性能与锂基脂性能相当,能够完全替代锂基脂的应用。
Description
技术领域
本发明属于润滑脂技术领域,具体涉及一种聚脲-无水钙基润滑脂及其制备方法。
背景技术
2021年以来新能源汽车始终保持高速增长的态势,在新能源汽车需求端增长确定性加强的逻辑下,动力电池行业景气度不断上行,上游原材料形成巨大的市场需求。作为动力电池核心原材料,锂盐成为最火热的大宗商品,价格一路暴涨,持续居高不下。作为我们润滑脂中的锂基脂产品也需要用到氢氧化锂,目前我们的氢氧化锂价格持续居高不下,对于普通应用的锂基脂成本也上涨很多,开发一种新型产品性能与锂基脂相同,能够应用在类似工况条件迫在眉睫,这样既能满足应用也可降低成本,带来巨大的经济效益。
发明内容
本发明的目的在于针对现有技术的不足,提供一种聚脲-无水钙基润滑脂及其制备方法。
为实现上述目的,本发明采用如下技术方案:
一种聚脲-无水钙基润滑脂,由无水钙基脂与脲基脂组成,所述无水钙基脂由稠化剂A、基础油、防锈剂和抗氧剂组成,其中稠化剂A由氢氧化钙、硬脂酸和12羟基硬脂酸组成;所述脲基脂由稠化剂B、基础油、防锈剂和抗氧剂组成,其中稠化剂B由MDI、脂肪胺和脂环胺组成。
优选地,按质量百分数计,无水钙基脂的各组分含量为:12.78% 稠化剂A、85.22%基础油、1.0% 防锈剂、1.0% 抗氧剂。
优选地,按质量百分数计,脲基脂的各组分含量为:7.50% 稠化剂B、90.50% 基础油、1.0% 防锈剂、1.0% 抗氧剂。
优选地,所述聚脲-无水钙基润滑脂中无水钙基脂的质量分数为25-80%,脲基脂的质量分数为20-75%。
优选地,按质量百分数计,稠化剂A的各组分含量为:1.0-3.0%氢氧化钙、2.5-5.0%硬脂酸、6.5-10.0% 12羟基硬脂酸。
优选地,按质量百分数计,稠化剂B的各组分含量为:2.0-6.0%MDI、2.5-6.5%脂肪胺、0.5-2.5%脂环胺;所述脂肪胺包括C8胺~C22胺,脂环胺包括环己胺。
优选地,所述的基础油为矿物油、酯类油、合成烃油、醚类油中的一种或多种。
优选地,所述的防锈剂为高碱值合成磺酸钙、石油磺酸钡、司盘80中的一种或多种。
优选地,所述的抗氧剂为丁基辛基二苯胺、二异辛基二苯胺、酚酯、烷基苯基胺中的一种或多种。
上述聚脲-无水钙基润滑脂的制备方法包括以下步骤:
(1)将硬脂酸,12羟基硬脂酸、氢氧化钙、基础油投入反应釜,升温至150~160℃进行皂化反应,反应后冷却至室温,均质研磨,加入防锈剂和抗氧剂,脱气得到无水钙基脂;
(2)将MDI溶解在基础油中,脂肪胺和脂环胺溶解在基础油中,在80~100℃反应,升温至150~160℃,反应结束后冷却至室温,均质研磨,加入防锈剂和抗氧剂,脱气得到脲基脂;
(3)将无水钙基脂与脲基脂混合均匀,经过滤、脱气得到聚脲-无水钙基润滑脂。
本发明的有益效果在于:
本发明的无水钙与聚脲基混合,可以制备性能与锂基脂相当的产品。
具体实施方式
以下结合具体实施例对本发明做进一步说明,但本发明不仅仅限于这些实施例。
实施例1
一种聚脲-无水钙基润滑脂,由无水钙基脂与脲基脂组成,所述无水钙基脂由稠化剂A、基础油、防锈剂和抗氧剂组成,其中稠化剂A由氢氧化钙、硬脂酸和12羟基硬脂酸组成;所述脲基脂由稠化剂B、基础油、防锈剂和抗氧剂组成,其中稠化剂B由MDI、脂肪胺和脂环胺组成。
本实施例中,按质量百分数计,无水钙基脂的各组分含量为:12.78% 稠化剂A、85.22% 基础油、1.00% 防锈剂、1.00% 抗氧剂。
本实施例中,按质量百分数计,脲基脂的各组分含量为:7.50% 稠化剂B、90.50%基础油、1.00% 防锈剂、1.00% 抗氧剂。
本实施例中,所述聚脲-无水钙基润滑脂中无水钙基脂的质量分数为80%,脲基脂的质量分数为20%。
本实施例中,按质量百分数计,稠化剂A的各组分含量为:1.51%氢氧化钙、3.37%硬脂酸、7.9% 12羟基硬脂酸。
本实施例中,按质量百分数计,稠化剂B的各组分含量为:2.91% MDI、3.14%脂肪胺、1.15%脂环胺;所述脂肪胺为十八胺,脂环胺为环己胺。
本实施例中,所述的基础油为BT 150(基础油),所述的防锈剂为合成磺酸钙盐,所述的抗氧剂为L57(丁基辛基二苯胺)。
上述聚脲-无水钙基润滑脂的制备方法包括以下步骤:
(1)将硬脂酸,12羟基硬脂酸、氢氧化钙、基础油按比例投入反应釜,升温至150~160℃进行皂化反应,反应后冷却至室温,均质研磨,加入防锈剂和抗氧剂,脱气得到无水钙基脂;
(2)将MDI溶解在基础油中,脂肪胺和脂环胺溶解在基础油中,升温至150~160℃进行反应,反应结束后冷却至室温,均质研磨,加入防锈剂和抗氧剂,脱气得到脲基脂;
(3)将无水钙基脂与脲基脂按比例混合均匀,经过滤、脱气得到聚脲-无水钙基润滑脂。
实施例2
与实施例1一致,区别在于:所述聚脲-无水钙基润滑脂中无水钙基脂的质量分数为75%,脲基脂的质量分数为25%。
实施例3
与实施例1一致,区别在于:所述聚脲-无水钙基润滑脂中无水钙基脂的质量分数为50%,脲基脂的质量分数为50%。
实施例4
与实施例1一致,区别在于:所述聚脲-无水钙基润滑脂中无水钙基脂的质量分数为25%,脲基脂的质量分数为75%。
对比例1
与实施例1一致,区别在于:所述聚脲-无水钙基润滑脂中无水钙基脂的质量分数为0,脲基脂的质量分数为100%。
对比例2
市售锂基脂U-221(福建优立盛油脂有限公司)
性能测试:
由上表的各项数据可以看出本发明的实施例1~4均有较好的性能,各项指标均与我们现有的对比例2指标相当,说明性能基本接近一致;实施例1~4的各项指标除了滴点的数值小于对比例1外,其他性能均与对比例1接近甚至稍好一些。
以上所述仅为本发明的较佳实施例,凡依本发明申请专利范围所做的均等变化与修饰,皆应属本发明的涵盖范围。
Claims (10)
1.一种聚脲-无水钙基润滑脂,其特征在于:由无水钙基脂与脲基脂组成,所述无水钙基脂由稠化剂A、基础油、防锈剂和抗氧剂组成,其中稠化剂A由氢氧化钙、硬脂酸和12羟基硬脂酸组成;所述脲基脂由稠化剂B、基础油、防锈剂和抗氧剂组成,其中稠化剂B由MDI、脂肪胺和脂环胺组成。
2.根据权利要求1所述的聚脲-无水钙基润滑脂,其特征在于:按质量百分数计,无水钙基脂的各组分含量为:12.78% 稠化剂A、85.22% 基础油、1.0% 防锈剂、1.0% 抗氧剂。
3.根据权利要求1所述的聚脲-无水钙基润滑脂,其特征在于:按质量百分数计,脲基脂的各组分含量为:7.50% 稠化剂B、90.50% 基础油、1.0% 防锈剂、1.0% 抗氧剂。
4.根据权利要求1所述的聚脲-无水钙基润滑脂,其特征在于:所述聚脲-无水钙基润滑脂中无水钙基脂的质量分数为25-80%,脲基脂的质量分数为20-75%。
5.根据权利要求1所述的聚脲-无水钙基润滑脂,其特征在于:按质量百分数计,稠化剂A的各组分含量为:1.0-3.0%氢氧化钙、2.5-5.0%硬脂酸、6.5-10.0% 12羟基硬脂酸。
6.根据权利要求1所述的聚脲-无水钙基润滑脂,其特征在于:按质量百分数计,稠化剂B的各组分含量为:2.0-6.0%MDI、2.5-6.5%脂肪胺、0.5-2.5%脂环胺;所述脂肪胺包括C8胺~C22胺,脂环胺包括环己胺。
7.根据权利要求1所述的聚脲-无水钙基润滑脂,其特征在于:所述的基础油为矿物油、酯类油、合成烃油、醚类油中的一种或多种。
8.根据权利要求1所述的聚脲-无水钙基润滑脂,其特征在于:所述的防锈剂为合成磺酸钙盐、石油磺酸钡盐、山梨糖醇单油酸酯、有机胺中的一种或多种。
9.根据权利要求1所述的聚脲-无水钙基润滑脂,其特征在于:所述的抗氧剂为丁基辛基二苯胺、二异辛基二苯胺、酚酯、烷基苯基胺中的一种或多种。
10.一种如权利要求1-9任一项所述聚脲-无水钙基润滑脂的制备方法,其特征在于:包括以下步骤:
(1)将硬脂酸,12羟基硬脂酸、氢氧化钙、基础油投入反应釜,升温至150~160℃进行皂化反应,反应后冷却至室温,均质研磨,加入防锈剂和抗氧剂,脱气得到无水钙基脂;
(2)将MDI溶解在基础油中,脂肪胺和脂环胺溶解在基础油中,在80~100℃时反应,升温至150~160℃,反应结束后冷却至室温,均质研磨,加入防锈剂和抗氧剂,脱气得到脲基脂;
(3)将无水钙基脂与脲基脂混合均匀,经过滤、脱气得到聚脲-无水钙基润滑脂。
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