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Extremely-low-volatility PAO (polyalpha-olefin) lubricating grease and preparation method thereof

A volatile, lubricating grease technology, applied in the direction of lubricating compositions, petroleum industry, etc., can solve the problems that cannot meet the actual use requirements, and achieve the effect of simple composition, simple process and cost reduction

Pending Publication Date: 2018-04-17
东莞市欧迪斯润滑剂科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, the vacuum environment we are familiar with includes the production of aerospace vehicles, liquid crystal displays, and some high-precision electronic components. The grease used in the high vacuum environment is all imported. After research and analysis, the basic grease used in these greases The raw materials are available in the market, but the grease made of these basic materials cannot meet the actual use requirements in a vacuum environment, so it can be inferred that these raw materials have been specially treated, especially the base oil, so it is necessary to find a kind of Solve the problem that the base oil itself evaporates at high temperature

Method used

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  • Extremely-low-volatility PAO (polyalpha-olefin) lubricating grease and preparation method thereof
  • Extremely-low-volatility PAO (polyalpha-olefin) lubricating grease and preparation method thereof
  • Extremely-low-volatility PAO (polyalpha-olefin) lubricating grease and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] A very low-volatile PAO grease is prepared from the following raw materials by weight percentage: 60% of PAO after rectification, 39% of PTFE, and 1% of dialkyldiphenylamine.

[0018] It should be noted that in this example, the kinematic viscosity of PAO at 100° C. is 10 mm2 / s, which is composed of a single PAO; the PTFE powder is a single type, with a particle size of about 7 microns.

[0019] The performance of the product is shown in Table 1 below:

[0020] Table 1 is the product performance test table of Example 1

[0021]

Embodiment 2

[0023] An extremely low volatility PAO grease is prepared by using the following raw materials by weight percentage: 65% of PAO after rectification, 34.5% of PTFE, and 0.5% of dialkyldiphenylamine.

[0024] It should be noted that in this example, the kinematic viscosity of PAO at 100° C. is 25 mm2 / s, which is composed of two kinds of PAOs; the PTFE powder is a single type, and the particle size is about 4 microns.

[0025] The performance of the product is shown in Table 2 below:

[0026] Table 2 is the product performance test table of embodiment 2

[0027]

Embodiment 3

[0029] A very low volatility PAO grease, prepared from the following raw materials by weight: 78% PAO after rectification, 21.5% PTFE, 0.5% dialkyldiphenylamine

[0030] It should be noted that in this example, the kinematic viscosity of PAO at 100°C is 36 mm2 / s, which is composed of two kinds of PAOs; the PTFE powder is composed of three different kinds of PTFE, and the particle size is about 4-6 microns.

[0031] The performance of the product is shown in Table 3 below:

[0032] Table 3 is the product performance test table of embodiment 3

[0033]

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Abstract

The invention provides extremely-low-volatility PAO (polyalpha-olefin) lubricating grease and a preparation method thereof. The extremely-low-volatility PAO lubricating grease is prepared by, by weight percentage, 55-80% of rectified low-viscosity polyalpha-olefin, 19.5-44% of teflon micro-powder and 0.5-1% of dialkyl diphenylamine. The preparation method includes the steps of firstly, evenly mixing different-viscosity PAO in 1-3 with dialkyl diphenylamine according to the proportion for standby; secondly, rectifying base oil obtained in the first step; thirdly, taking out heavy components obtained after the rectifying, proportionally adding the heavy components and PTFE into a stirring kettle, and evenly stirring at the stirring speed of 35-45rpm; fourthly, after visual observation showsthat the heavy components and the PTFE are evenly stirred, grinding once, evenly mixing, then grinding twice, and loading into a grease barrel.

Description

technical field [0001] The invention belongs to the field of extremely low volatility PAO grease, in particular to an extremely low volatility PAO grease and a preparation method. Background technique [0002] With the progress of society, the proportion of high and new technology in life is getting higher and higher, especially the vigorous development of aerospace and electronic technology, which has put forward new requirements for the grease industry. This requirement is mainly reflected in the high vacuum of grease The evaporation rate is lower. [0003] At present, the well-known vacuum environments include aerospace aircraft, the production of liquid crystal displays, and some high-precision electronic components. All greases used in high-vacuum environments are imported. After research and analysis, the basic components used in these greases are Raw materials can be purchased in the market, but the grease made of these basic materials cannot meet the actual use re...

Claims

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Application Information

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IPC IPC(8): C10M169/04C10N50/10
CPCC10M169/041C10M2215/064C10M2213/062C10M2205/0206C10N2020/06C10N2020/02C10N2050/10
Inventor 丘长木
Owner 东莞市欧迪斯润滑剂科技有限公司
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