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Lubricating grease and preparation method thereof

A technology of lubricating grease and lubricating base oil, applied in the field of lubricating grease, can solve problems such as the inability to meet high temperature lubrication, and achieve the effect of excellent water resistance and excellent high temperature performance

Active Publication Date: 2019-01-18
CHINA PETROLEUM & CHEM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the most commonly used lubricating grease in my country is metal soap-based lubricating grease with mineral oil as the base oil. Its operating temperature does not exceed 150°C, which cannot meet the needs of high-temperature lubrication.

Method used

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  • Lubricating grease and preparation method thereof
  • Lubricating grease and preparation method thereof
  • Lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Raw material components: 150BS base oil (kinematic viscosity at 100°C is 31mm 2 / s, flash point is 288°C) 80kg; copper phthalocyanine 10kg; silica gel (average particle size 0.5μm) 5kg; diphenylamine 5kg.

[0032] Stir the base oil and copper phthalocyanine evenly at room temperature, add silica gel and continue to stir, heat up to 60°C and keep stirring for 10 minutes, then add diphenylamine, continue to stir and cool to room temperature, and grind 3 times with a grinder to obtain this example Prepared lubricating grease, test its product properties are listed in Table 1.

Embodiment 2

[0034] Raw material components: polyalphaolefin oil PAO10 (kinematic viscosity at 100°C is 10mm 2 / s, flash point is 290°C) 74kg; copper phthalocyanine 24kg; silica gel (average particle size is 10μm) 1kg; N-phenyl-α-naphthylamine 1kg.

[0035] Stir the base oil and copper phthalocyanine evenly at room temperature, add silica gel and continue stirring, heat up to 80°C and keep stirring for 20 minutes, then add N-phenyl-α-naphthylamine, continue stirring and cool to room temperature, grind 3 times through a grinder , to obtain the lubricating grease prepared in this embodiment, and its product properties were tested and listed in Table 1.

Embodiment 3

[0037] Raw material components: mixed oil of 500N base oil and methyl silicone oil 201-100 (kinematic viscosity at 100°C is 15mm 2 / s, flash point is 280°C) 79kg; copper phthalocyanine 20kg; silica gel (average particle size 50μm) 0.5kg; N-phenyl-α-naphthylamine 0.5kg.

[0038] Stir the base oil and copper phthalocyanine evenly at room temperature, add silica gel and continue stirring, heat up to 65°C and keep stirring for 30 minutes, then add N-phenyl-α-naphthylamine, continue stirring and cool to room temperature, grind 3 times through a grinder , to obtain the lubricating grease prepared in this embodiment, and its product properties were tested and listed in Table 1.

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Abstract

The invention relates to lubricating grease and a preparation method thereof. Based on the total weight of the lubricating grease, the lubricating grease contains the following components: 64wt%-95wt%of lubricating base oil, 4wt%-35wt% of a thickener, 0.1wt%-10wt% of a structural modifier and 0.1wt%-10wt% of an antioxidant, and the structure improver is at least one selected from silica gel powder, bentonite and carbon black. The lubricating grease has excellent high-temperature performance, is drip-free, has excellent water resistance, colloid stability, rust prevention and corrosion resistance, and can meet lubricating requirements of high-temperature working conditions of wateriness and humidity.

Description

technical field [0001] The present disclosure relates to the technical field of lubricating grease, in particular, to a lubricating grease and a preparation method thereof. Background technique [0002] The semi-fluid to solid lubricants prepared by thickening the base oil with a thickener are called greases. Grease is used in a wide range of fields. It can be used to lubricate rotation and lubricate mechanical friction parts, as well as protect and seal. Its applications almost cover industrial fields, agricultural fields, transportation industries, aerospace industries, electronic information industries and defense equipment. Among petroleum products, although the output of lubricating grease accounts for a small proportion, there are many varieties, and it is an indispensable and important material for all sectors of the national economy. [0003] With the continuous development of our country's economy, the level of industrialization continues to increase, the use of a...

Claims

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Application Information

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IPC IPC(8): C10M169/06C10N30/08C10N30/12
CPCC10M169/06C10M2215/065C10M2215/064C10M2215/2275C10M2201/041C10M2201/103C10M2201/105C10M2205/0285C10M2203/1065C10N2030/08C10N2030/12C10N2030/26C10N2010/02C10N2020/02C10N2020/06
Inventor 周云帆郑会何懿峰刘欣阳孙洪伟
Owner CHINA PETROLEUM & CHEM CORP
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