Low-temperature-resistant graphene lubricating oil and preparation method thereof

A technology of graphene and lubricating oil, which is applied in the field of lubricating oil, can solve the problems of small lubricating performance improvement of lubricating oil, decline of lubricating oil lubricating performance, and inability to disperse graphite, so as to improve low-temperature flow performance, enhance anti-friction performance, and improve anti-friction The effect of oxidation properties

Inactive Publication Date: 2020-02-07
蔡樟森
View PDF3 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the existing problem is that graphene is prone to agglomeration due to its flake structure, and ordinary dispersants cannot effectively disperse graphite; The effect of coagulant on improving the low-temperature fluidity of lubricating oil is not significant, and the low-temperature resistance performance of lubricating oil needs to be further improved
[0003] Chinese Patent Publication No. CN106479652 discloses a preparation method of degradable lubricating oil for vehicles. Emulsifier, extreme pressure machine, antioxidant, anti-corrosion rust agent, flake graphite and water, but the thicker flake graphite has not been stripped and dispersed, so the lubricating performance of lubricating oil is less improved; China Patent Publication No. CN106010755 discloses a joint lubricating oil for injection molding machines, which is prepared from the following raw materials in parts by weight: mineral base oil, nonylphenol polyoxyethylene ether, hexachlorocy

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation method of modified graphene comprises the following steps:

[0026]Add flake graphite according to the mass volume ratio of 1g / 100mL to a sulfuric acid solution with a mass concentration of 75% and stir for 30min under ice-water bath conditions, then add potassium permanganate, the mass ratio of potassium permanganate to flake graphite is 1:40, Heat in a water bath to 42°C, stir for 40 minutes, add sulfuric acid solution volume 0.5 times the mass concentration of 10% hydrogen peroxide aqueous solution after cooling, let it stand for 2 hours, filter, wash, and dry at 50°C to obtain graphite oxide; the silane coupling agent Add KH-560 to 20% ethanol aqueous solution according to the mass ratio of 1:60, adjust the pH to 6, stir and hydrolyze at 50°C for 30min, add graphite oxide into the silane coupling agent solution according to the mass-volume ratio of 1g / 80mL Under the power of 200W, carry out ultrasonic exfoliation and dispersion for 30min, stir for 1....

Embodiment 2

[0033] The preparation method of modified graphene comprises the following steps:

[0034] Add flake graphite according to the mass volume ratio of 1g / 100mL to a sulfuric acid solution with a mass concentration of 75% and stir for 20min under ice-water bath conditions, then add potassium permanganate, the mass ratio of potassium permanganate to flake graphite is 1:40, Heat in a water bath to 42°C, stir for 40 minutes, add sulfuric acid solution volume 0.5 times the mass concentration of 10% hydrogen peroxide aqueous solution after cooling, let it stand for 2 hours, filter, wash, and dry at 50°C to obtain graphite oxide; the silane coupling agent Add KH-560 into 20% ethanol aqueous solution according to the mass ratio of 1:60, adjust the pH to 5, stir and hydrolyze at 50°C for 30min, add graphite oxide into the silane coupling agent solution according to the mass-volume ratio of 1g / 80mL Under the power of 200W, carry out ultrasonic exfoliation and dispersion for 30min, stir for...

Embodiment 3

[0041] The preparation method of modified graphene comprises the following steps:

[0042] Add flake graphite according to the mass volume ratio of 1g / 100mL to a sulfuric acid solution with a mass concentration of 75% and stir for 25min under ice-water bath conditions, then add potassium permanganate, the mass ratio of potassium permanganate to flake graphite is 1:40, Heat in a water bath to 45°C, stir for 30 minutes, add sulfuric acid solution volume 0.5 times the mass concentration of 10% hydrogen peroxide aqueous solution after cooling, let it stand for 3 hours, filter, wash, and dry at 50°C to obtain graphite oxide; the silane coupling agent Add KH-560 into 20% ethanol aqueous solution according to the mass ratio of 1:60, adjust the pH to 5.5, stir and hydrolyze at 50°C for 30min, add graphite oxide into the silane coupling agent solution according to the mass-volume ratio of 1g / 80mL Under the power of 200W, perform ultrasonic stripping and dispersion for 30min, stir for 2...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention relates to the technical field of lubricating oil and discloses low-temperature-resistant graphene lubricating oil and a preparation method thereof. The lubricating oil comprises, by weight, 70-80 parts of base oil, 10-15 parts of modified graphene, 3-6 parts of sepiolite powder, 1-3 parts of di-n-butyl phosphite anti-wear agent, 1-2 parts of polymethacrylate pour point depressant, 0.5-1 part of siloxane defoamer and 0.5-1 part of aromatic amine antioxidant. According to the preparation method, firstly, the modified graphene, the sepiolite powder and the base oil are added into astirrer to be stirred and dispersed, then the di-n-butyl phosphite anti-wear agent, the polymethacrylate pour point depressant, the siloxane defoamer and the aromatic amine antioxidant are added, themixture continues to be stirred and dispersed, and the lubricating oil is obtained. According to the lubricating oil, the graphene can be dispersed at a high degree, and the lubricating oil has goodlubricating performance and low-temperature flowing performance.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a low-temperature resistant graphene lubricating oil and a preparation method thereof. Background technique [0002] Lubricating oil is generally composed of base oil and additives. The main component is base oil. The quality of base oil determines the properties of lubricating oil, while additives mainly improve the properties of lubricating oil and make up for the lack of performance. The main functions of lubricating oil are: 1. Lubricating oil can reduce mechanical friction. Adding lubricating oil to the friction surface can reduce resistance, reduce energy consumption, reduce damage, and reduce friction; 2. Lubricating oil can absorb heat generated by friction and has the function of cooling Cooling effect; 3. Lubricating oil spreads on the surface of mechanical parts to form a protective film to prevent the erosion of moisture in the air and prevent oxidation and ru...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C10M169/04C10M125/02C10M125/26C10N30/08C10N30/04C10N30/06
CPCC10M125/02C10M125/26C10M169/048C10M2201/102C10M2205/0206C10M2207/401C10M2209/08C10M2215/06C10M2223/049
Inventor 蔡樟森
Owner 蔡樟森
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap