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

3 Cites 2 Cited by

AI-Extracted 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 avail...

Method used

S9: when test ends, rotary joint is forwarded to small container directio...

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.

Application Domain

Lubricant composition

Technology Topic

Visual observationBase oil +2

Image

Examples

Experimental program(5)

Example Embodiment

[0016] Example 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]

Example Embodiment

[0022] Example 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]

Example Embodiment

[0028] Example 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]

PUM

Property	Measurement	Unit
Kinematic viscosity	10.0	mm²/s
Particle size	7.0	µm
Kinematic viscosity	25.0	mm²/s

Description & Claims & Application Information

We can also present the details of the Description, Claims and Application information to help users get a comprehensive understanding of the technical details of the patent, such as background art, summary of invention, brief description of drawings, description of embodiments, and other original content. On the other hand, users can also determine the specific scope of protection of the technology through the list of claims; as well as understand the changes in the life cycle of the technology with the presentation of the patent timeline. Login to view more.

Classification and recommendation of technical efficacy words

simple composition
Simple process

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

AI-Extracted Technical Summary

Problems solved by technology

Method used

Abstract

Image

Examples

Example Embodiment

Example Embodiment

Example Embodiment

PUM

Description & Claims & Application Information

Similar technology patents

Composite aminophenol feedstuff additive and preparation method thereof

Component and preparation method of alkoxy magnesium particle

Sampling device for chlorinated organic compounds

Nozzle position correcting mechanism and application device with same

Cleaning agent for removing radionuclides and using method of cleaning agent

Classification and recommendation of technical efficacy words

Method and device for selecting mobility management mechanism for terminal as required

Novel fuel for vehicles

Formula of rice cake of castanopsis chinensis hance and production process thereof

Tellurium containing alkane ammoxidation reaction catalyst

Fuel Cell Resin Frame Equipped Membrane Electrode Assembly

Multimedia data recording apparatus, monitor system, and multimedia data recording method

Simultaneously desulfurization and denitration wet ammonia flue gas cleaning technology and system thereof

Method for recycling metal oxide from waste flue gas denitration catalyst

Method for removing COS from a stream of hydrocarbon fluid and wash liquid for use in a method of this type

Method for preparing graphite alkyne film