CN109652162A - 一种降噪型超低温润滑脂的制备方法 - Google Patents

一种降噪型超低温润滑脂的制备方法 Download PDF

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CN109652162A
CN109652162A CN201811285278.2A CN201811285278A CN109652162A CN 109652162 A CN109652162 A CN 109652162A CN 201811285278 A CN201811285278 A CN 201811285278A CN 109652162 A CN109652162 A CN 109652162A
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吕方敏
张菊
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Suzhou Nine City Lubricating Oil Co Ltd
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Abstract

本发明提供了一种降噪型超低温润滑脂的制备方法,包括以下步骤:配制NaOH溶液和氯乙酸钠溶液;将田菁胶、无水乙醇和去离子水混合搅拌;滴加NaOH溶液搅拌处理;加氯乙酸钠溶液反应;冷却,抽滤,洗涤干燥,研磨成粉得改性田菁胶;取改性牡蛎壳粉均匀地平铺在低温等离子处理装置中处理得二次改性牡蛎壳粉;将基础油、硬脂酸和硫化棉籽油加入制脂釜中,升温搅拌;加入改性田菁胶继续搅拌;加层状二硅酸钠和硬脂酸锌搅拌;降至室温,加二次改性牡蛎壳粉、丁基羟基茴香醚,混合搅拌均匀,经三辊研磨机研磨即得。本法所制备的降噪型超低温润滑脂的噪音级别为GN3,为静音润滑脂,具有非常好的降噪效果;同时其具有良好的超低温流动性。

Description

一种降噪型超低温润滑脂的制备方法
技术领域
本发明涉及一种降噪型超低温润滑脂的制备方法。
背景技术
机械设备是工业生产的重要工具,良好的设备运行取决于润滑状况。润滑是指用液体、气体、固体等将摩擦表面分开,避免摩擦面直接接触,减少摩擦和磨损。润滑脂是工业润滑剂的重要组成部分,是由稠化剂和基础油组成的具有可塑性的半固体润滑材料,被广泛应用于电子、电力、钢铁和汽车等工业。润滑脂由于其固有的优良性能,不仅能满足常规的润滑要求,与液体润滑剂相比还具备以下优点:黏附性好,不易流失;在高负荷下能保持良好的润滑能力;润滑周期长;适用的温度范围与工作条件宽;具有密封作用。因此,机械使用润滑脂可简化机械润滑系统、避免漏油、降低能源消耗、减少环境污染,符合绿色化学提倡的理念。另一方面,为满足苛刻的工况,润滑脂会经过特殊处理来提高性能,降噪性就是其中一种。因此,研究开发降噪性能优良、同时能够适应超低温度环境的润滑脂成为了研究的热点。
发明内容
要解决的技术问题:提供一种降噪型超低温润滑脂的制备方法,所得降噪型超低温润滑脂的噪音级别为GN3,评价为静音润滑脂,具有非常好的降噪效果;同时其具有良好的超低温流动性。
技术方案:一种降噪型超低温润滑脂的制备方法,成分按重量份计,包括以下步骤:
(1)配制1L浓度为0.1-0.2mol/L的NaOH溶液和1L浓度为0.15-0.25mol/L的氯乙酸钠溶液;
(2)将5-10份田菁胶、20-30份无水乙醇和20-30份去离子水混合搅拌20-30min;
(3)滴加NaOH溶液,在温度30-50℃下搅拌处理40-50min;
(4)加入氯乙酸钠溶液,置于40-50℃的水浴中反应3-4h;
(5)冷却,抽滤,用无水乙醇洗涤2-3次,干燥,研磨成粉,得到改性田菁胶;
(6)取2-3份改性牡蛎壳粉均匀地平铺在低温等离子处理装置中的地电极上,在电源频率8-10kHz、工作电压20kV、放电功率70-80W条件下处理6-9min得二次改性牡蛎壳粉;
(7)将50-70份基础油、3-5份硬脂酸和10-20份硫化棉籽油加入制脂釜中,升温至60℃,在转速600-800rpm下搅拌20-30 min;
(8)加入5-9份改性田菁胶,继续搅拌20-30 min;
(9)加入1-3份层状二硅酸钠和1-2份硬脂酸锌,在转速1500-2000rpm下搅拌40-50min;
(10)降至室温,加入2-3份二次改性牡蛎壳粉、0.2-0.5份丁基羟基茴香醚,混合搅拌均匀,经三辊研磨机研磨即得降噪型超低温润滑脂。
进一步的,所述的改性牡蛎壳粉的制备方法为:
第一步:将牡蛎壳粉碎,过100目筛;
第二步:将10份γ-氨丙基三乙氧基硅烷和30份去离子水混合水解25min,加入6份牡蛎壳粉,加热至50℃,搅拌反应1-2h;
第三步:抽滤、烘干、打散后即得改性牡蛎壳粉。
进一步的,所述(6)中电源频率为9kHz,放电功率为75W。
进一步的,所述基础油的40℃运动粘度为20-30mm2/s。
有益效果:
1. 改性田菁胶作为稠化剂,经过改性后,水溶性增强,纤维变短且变均匀,降噪能力大幅度提升。
2. 牡蛎壳粉经改性后形成密集且均匀的小孔,能够有效的吸收声波,降低噪音。
3. 本发明降噪型超低温润滑脂的噪音级别为GN3,评价为静音润滑脂,具有非常好的降噪效果;同时其具有良好的超低温流动性。
具体实施方式
实施例1
一种降噪型超低温润滑脂的制备方法,成分按重量份计,包括以下步骤:
(1)配制1L浓度为0.1mol/L的NaOH溶液和1L浓度为0.15mol/L的氯乙酸钠溶液;
(2)将5份田菁胶、20份无水乙醇和20份去离子水混合搅拌20min;
(3)滴加NaOH溶液,在温度30℃下搅拌处理40min;
(4)加入氯乙酸钠溶液,置于40℃的水浴中反应3h;
(5)冷却,抽滤,用无水乙醇洗涤2次,干燥,研磨成粉,得到改性田菁胶;
(6)取2-3份改性牡蛎壳粉均匀地平铺在低温等离子处理装置中的地电极上,在电源频率8kHz、工作电压20kV、放电功率70W条件下处理6min得二次改性牡蛎壳粉;
(7)将50份基础油、3份硬脂酸和10份硫化棉籽油加入制脂釜中,升温至60℃,在转速600pm下搅拌20 min;
(8)加入5份改性田菁胶,继续搅拌20 min;
(9)加入1份层状二硅酸钠和1份硬脂酸锌,在转速1500rpm下搅拌40 min;
(10)降至室温,加入2份二次改性牡蛎壳粉、0.2份丁基羟基茴香醚,混合搅拌均匀,经三辊研磨机研磨即得降噪型超低温润滑脂。
实施例2
一种降噪型超低温润滑脂的制备方法,成分按重量份计,包括以下步骤:
(1)配制1L浓度为0.12mol/L的NaOH溶液和1L浓度为0.18mol/L的氯乙酸钠溶液;
(2)将7份田菁胶、25份无水乙醇和25份去离子水混合搅拌25min;
(3)滴加NaOH溶液,在温度35℃下搅拌处理45min;
(4)加入氯乙酸钠溶液,置于45℃的水浴中反应3.5h;
(5)冷却,抽滤,用无水乙醇洗涤2次,干燥,研磨成粉,得到改性田菁胶;
(6)取2.2份改性牡蛎壳粉均匀地平铺在低温等离子处理装置中的地电极上,在电源频率9kHz、工作电压20kV、放电功率75W条件下处理7min得二次改性牡蛎壳粉;
(7)将55份基础油、4份硬脂酸和12份硫化棉籽油加入制脂釜中,升温至60℃,在转速650rpm下搅拌25 min;
(8)加入6份改性田菁胶,继续搅拌25 min;
(9)加入1.5份层状二硅酸钠和1.5份硬脂酸锌,在转速1700rpm下搅拌45 min;
(10)降至室温,加入2.5份二次改性牡蛎壳粉、0.3份丁基羟基茴香醚,混合搅拌均匀,经三辊研磨机研磨即得降噪型超低温润滑脂。
实施例3
一种降噪型超低温润滑脂的制备方法,成分按重量份计,包括以下步骤:
(1)配制1L浓度为0.15mol/L的NaOH溶液和1L浓度为0.20mol/L的氯乙酸钠溶液;
(2)将8份田菁胶、25份无水乙醇和25份去离子水混合搅拌25min;
(3)滴加NaOH溶液,在温度40℃下搅拌处理45min;
(4)加入氯乙酸钠溶液,置于45℃的水浴中反应3.5h;
(5)冷却,抽滤,用无水乙醇洗涤3次,干燥,研磨成粉,得到改性田菁胶;
(6)取2.5份改性牡蛎壳粉均匀地平铺在低温等离子处理装置中的地电极上,在电源频率9kHz、工作电压20kV、放电功率75W条件下处理8min得二次改性牡蛎壳粉;
(7)将60份基础油、4份硬脂酸和15份硫化棉籽油加入制脂釜中,升温至60℃,在转速700rpm下搅拌25 min;
(8)加入7份改性田菁胶,继续搅拌25 min;
(9)加入2份层状二硅酸钠和1.5份硬脂酸锌,在转速1800rpm下搅拌45 min;
(10)降至室温,加入2.5份二次改性牡蛎壳粉、0.4份丁基羟基茴香醚,混合搅拌均匀,经三辊研磨机研磨即得降噪型超低温润滑脂。
实施例4
一种降噪型超低温润滑脂的制备方法,成分按重量份计,包括以下步骤:
(1)配制1L浓度为0.18mol/L的NaOH溶液和1L浓度为0.20mol/L的氯乙酸钠溶液;
(2)将9份田菁胶、25份无水乙醇和25份去离子水混合搅拌25min;
(3)滴加NaOH溶液,在温度45℃下搅拌处理45min;
(4)加入氯乙酸钠溶液,置于45℃的水浴中反应3.5h;
(5)冷却,抽滤,用无水乙醇洗涤3次,干燥,研磨成粉,得到改性田菁胶;
(6)取2.5份改性牡蛎壳粉均匀地平铺在低温等离子处理装置中的地电极上,在电源频率9kHz、工作电压20kV、放电功率75W条件下处理8min得二次改性牡蛎壳粉;
(7)将65份基础油、4份硬脂酸和18份硫化棉籽油加入制脂釜中,升温至60℃,在转速750rpm下搅拌25 min;
(8)加入8份改性田菁胶,继续搅拌25 min;
(9)加入2.5份层状二硅酸钠和1.5份硬脂酸锌,在转速1800rpm下搅拌45 min;
(10)降至室温,加入2.5份二次改性牡蛎壳粉、0.4份丁基羟基茴香醚,混合搅拌均匀,经三辊研磨机研磨即得降噪型超低温润滑脂。
实施例5
一种降噪型超低温润滑脂的制备方法,成分按重量份计,包括以下步骤:
(1)配制1L浓度为0.2mol/L的NaOH溶液和1L浓度为0.25mol/L的氯乙酸钠溶液;
(2)将10份田菁胶、30份无水乙醇和30份去离子水混合搅拌30min;
(3)滴加NaOH溶液,在温度50℃下搅拌处理50min;
(4)加入氯乙酸钠溶液,置于50℃的水浴中反应4h;
(5)冷却,抽滤,用无水乙醇洗涤2-3次,干燥,研磨成粉,得到改性田菁胶;
(6)取3份改性牡蛎壳粉均匀地平铺在低温等离子处理装置中的地电极上,在电源频率8-10kHz、工作电压20kV、放电功率80W条件下处理9min得二次改性牡蛎壳粉;
(7)将70份基础油、5份硬脂酸和20份硫化棉籽油加入制脂釜中,升温至60℃,在转速800rpm下搅拌30 min;
(8)加入9份改性田菁胶,继续搅拌30 min;
(9)加入3份层状二硅酸钠和2份硬脂酸锌,在转速2000rpm下搅拌50 min;
(10)降至室温,加入3份二次改性牡蛎壳粉、0.5份丁基羟基茴香醚,混合搅拌均匀,经三辊研磨机研磨即得降噪型超低温润滑脂。
用 Bequiet+润滑脂噪音测定仪来鉴别六种进口润滑脂的噪音性能。测定润滑脂对轴承中频带
(300 Hz~1.8 kHz,以GDM 表示)和高频带(1.8 kHz~10 kHz,以GDH 表示)噪音的衰减能力,GDM 和GDH 的值越大,表明润滑脂对轴承中频带和高频带噪音的衰减能力越强。
表1 降噪型超低温润滑脂的降噪低温性能
本发明降噪型超低温润滑脂的噪音级别为GN3,评价为静音润滑脂,具有非常好的降噪效果;同时其具有良好的超低温流动性。

Claims (4)

1.一种降噪型超低温润滑脂的制备方法,其特征在于:成分按重量份计,包括以下步骤:
配制1L浓度为0.1-0.2mol/L的NaOH溶液和1L浓度为0.15-0.25mol/L的氯乙酸钠溶液;
将5-10份田菁胶、20-30份无水乙醇和20-30份去离子水混合搅拌20-30min;
滴加NaOH溶液,在温度30-50℃下搅拌处理40-50min;
加入氯乙酸钠溶液,置于40-50℃的水浴中反应3-4h;
冷却,抽滤,用无水乙醇洗涤2-3次,干燥,研磨成粉,得到改性田菁胶;
取2-3份改性牡蛎壳粉均匀地平铺在低温等离子处理装置中的地电极上,在电源频率8-10kHz、工作电压20kV、放电功率70-80W条件下处理6-9min得二次改性牡蛎壳粉;
将50-70份基础油、3-5份硬脂酸和10-20份硫化棉籽油加入制脂釜中,升温至60℃,在转速600-800rpm下搅拌20-30 min;
加入5-9份改性田菁胶,继续搅拌20-30 min;
加入1-3份层状二硅酸钠和1-2份硬脂酸锌,在转速1500-2000rpm下搅拌40-50 min;
降至室温,加入2-3份二次改性牡蛎壳粉、0.2-0.5份丁基羟基茴香醚,混合搅拌均匀,经三辊研磨机研磨即得降噪型超低温润滑脂。
2.根据权利要求1所述的一种降噪型超低温润滑脂的制备方法,其特征在于:所述的改性牡蛎壳粉的制备方法为:
第一步:将牡蛎壳粉碎,过100目筛;
第二步:将10份γ-氨丙基三乙氧基硅烷和30份去离子水混合水解25min,加入6份牡蛎壳粉,加热至50℃,搅拌反应1-2h;
第三步:抽滤、烘干、打散后即得改性牡蛎壳粉。
3.根据权利要求1所述的一种降噪型超低温润滑脂的制备方法,其特征在于:所述(6)中电源频率为9kHz,放电功率为75W。
4.根据权利要求1所述的一种降噪型超低温润滑脂的制备方法,其特征在于:所述基础油的40℃运动粘度为20-30mm2/s。
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