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Preparation method for lubricating oil of graphene loaded nanometer oxides

A nano-oxide and graphene technology, applied in the field of lubricating oil, can solve problems such as poor lubricity and short service life, and achieve high load-carrying capacity, convenient preparation, excellent dispersion and stability

Active Publication Date: 2015-12-23
TANGSHAN XIRUN SCI TECH DEV CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the problems of short service life of traditional lubricating oil, poor lubricity, and agglomeration and precipitation of existing lubricating oil nano-additives, the present invention discloses a method for preparing a lubricating oil loaded with graphene nano-oxides. The lubricating oil prepared by the present invention has Good lubricating performance and stability, and can have beneficial effects on lubricating oil in terms of viscosity-temperature characteristics, heat conduction effect, etc.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] A kind of preparation method of the lubricating oil of graphene-loaded nano-oxide, carries out as follows:

[0024] (1) Centrifuge the graphene oxide solution at a centrifugal force of 4000×g for 15 minutes, and take the supernatant for use; take 100 g of the supernatant of graphene oxide and 1 g of zinc oxide for physical mixing, and freeze-dry the uniformly mixed solution. A composite powder of fluffy few-layer graphene oxide and nano-zinc oxide is obtained.

[0025] (2) The composite powder obtained in step (1) was heated under vacuum until constant dryness, and the heating temperature was 150°C.

[0026] (3) Blend the composite powder obtained in step (2) with base oil, emulsify and sonicate until it is evenly dispersed, and then place it in a closed reactor for heat treatment. The treatment temperature range is 150°C and the absolute pressure is 1.4Mpa. After constant temperature for 1 hour and natural cooling to room temperature, the reaction product was centrifu...

Embodiment 2

[0029] A kind of preparation method of the lubricating oil of graphene-loaded nano-oxide, carries out as follows:

[0030] (1) Centrifuge the graphene oxide solution at a centrifugal force of 4000×g for 15 minutes, and take the supernatant for use; take 1000 g of the supernatant of graphene oxide and 1 g of zinc oxide for physical mixing, and freeze-dry the uniformly mixed solution. A composite powder of fluffy few-layer graphene oxide and nano-zinc oxide is obtained.

[0031] (2) The composite powder obtained in step (1) was heated under vacuum until constant dryness, and the heating temperature was 180°C.

[0032] (3) Blend the composite powder obtained in step (2) with base oil, emulsify and sonicate until it is evenly dispersed, and then place it in a closed reactor for heat treatment. The treatment temperature range is 150°C and the absolute pressure is 1.4Mpa. After constant temperature for 1.5 hours and natural cooling to room temperature, the reaction product was cent...

Embodiment 3

[0035] A kind of preparation method of the lubricating oil of graphene-loaded nano-oxide, carries out as follows:

[0036] (1) Centrifuge the graphene oxide solution at a centrifugal force of 4000×g for 15 minutes, and take the supernatant for use; take 1000 g of the supernatant of graphene oxide and 1 g of titanium oxide for physical mixing, and freeze-dry the uniformly mixed solution. A composite powder of fluffy few-layer graphene oxide and nano-titanium oxide is obtained.

[0037] (2) The composite powder obtained in step (1) was heated under vacuum until constant dryness, and the heating temperature was 150°C.

[0038] (3) Blend the composite powder obtained in step (2) with base oil, emulsify and sonicate until it is evenly dispersed, and then place it in a closed reactor for heat treatment. The treatment temperature range is 150°C and the absolute pressure is 1.4Mpa. After constant temperature for 1.2 hours and natural cooling to room temperature, the reaction product ...

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Abstract

The invention relates to a preparation method for lubricating oil of graphene loaded nanometer oxides, and belongs to the technical field of lubricating oil. The preparation method adopts the technical scheme that a graphene oxide solution is subjected to low-speed separation, and supernatant liquid is taken for use; the supernatant liquid and nanometer oxides are mixed and are subjected to freeze drying to obtain fluffy few-layer graphene oxide and nanometer oxide composite powder; the composite powder is heated in a vacuum state until the constant drying condition is reached, the composite powder in the constant drying condition and base oil are blended to be put in a sealed reaction kettle for heating treatment, and after the filtering or centrifugal separation, the repeated washing is carried out for 3 to 5 times to obtain an oleophylic graphene nanometer oxide compound; the oleophylic graphene nanometer oxide compound is uniformly mixed with composite additives and the base oil to obtain the lubricating oil of the graphene loaded nanometer oxides. The preparation method has the advantages that the process is simple; the performance price ratio is high; all ingredients have excellent dispersibility and stability. The prepared lubricating oil has good lubricating performance and high carrying capacity, and the beneficial influence can be generated on the lubricating oil in the aspects of viscosity-temperature characteristics, heat conduction effect and the like.

Description

technical field [0001] The invention relates to a preparation method of lubricating oil loaded with graphene nano-oxides, and belongs to the technical field of lubricating oil. Background technique [0002] As an important petroleum product with high technical content, lubricating oil has a wide range of applications and is used in almost all mechanical fields. Lubricating oil generally consists of two parts: base oil and additives. Base oil is the main component of lubricating oil, which determines the basic properties of lubricating oil. Additives are an important part of lubricating oil, which can make up for and improve the performance of base oil, and endow some new properties to oil products. The same base oil Different additive components and ratios have a great influence on oil quality. The quantity and types of lubricating oil products in our country are constantly increasing, but the product quality and grade need to be improved. [0003] Nano-oxides have unique...

Claims

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Application Information

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IPC IPC(8): C10M125/00C10M169/04C10M177/00C10N30/06
Inventor 吴洪鹏孟英侯林艳王建华李小莉
Owner TANGSHAN XIRUN SCI TECH DEV CO LTD
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