Composite lubricating oil of styreneic block copolymers and graphene and preparation method of composite lubricating oil

A block copolymer and graphene composite technology, applied in the field of lubricating oil, can solve problems such as no reports of lubricating oil, achieve excellent lubricating performance, and improve the effect of viscosity-temperature performance

Inactive Publication Date: 2017-10-10
SICHUAN CARBON WORLD TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, Styreneic Block Copolymers (Styreneic Block Copolymers) are the most similar thermoplastic elastomers to rubber, and are currently mainly used in rubber products, resin modifiers, adhesives and asphalt modifiers. See its report for lubricating oil

Method used

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  • Composite lubricating oil of styreneic block copolymers and graphene and preparation method of composite lubricating oil

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] A preparation method of styrene-based block copolymer and graphene composite lubricating oil, comprising the following steps: adding graphene to base oil for ultrasonic dispersion for 0.5h, then adding styrene-butadiene copolymer SBS to continue ultrasonic dispersion 0.5h, to obtain the composite lubricating oil of styrene-butadiene copolymer and graphene, hereinafter referred to as "lubricating oil A";

[0020] The graphene of this embodiment is oligolayer graphene of 3-5 layers prepared by redox method, the sheet diameter of graphene is 1 μm, and the mass content of graphene is 0.01%;

[0021] The mass content of PS of the SBS of the present embodiment is 3-10%, and the mass content of SBS is 2-10%

[0022] The blended lubricating oil was subpackaged, and the storage stability test was carried out at the same time. The sample container after one month had no sedimentation and stratification, and the liquid oil was uniform and stable.

Embodiment 2

[0024] A preparation method of a styrene-based block copolymer and graphene composite lubricating oil, comprising the steps of: adding graphene to base oil for ultrasonic dispersion for 1 hour, then adding hydrogenated styrene block copolymer SEBS to continue ultrasonic dispersion for 1 hour, Promptly obtain the composite lubricating oil of hydrogenated styrene block copolymer and graphene, hereinafter referred to as "lubricating oil B";

[0025] The graphene of the present embodiment is oligolayer graphene of 3-5 layers prepared by redox method, and the sheet diameter of graphene is 0.1-1 μm, and the mass content of graphene is 0.03%.

[0026] The mass content of PS in the SEBS of this embodiment is 35%, and the mass content of SEBS is 1%.

Embodiment 3

[0028] A preparation method of a styrene-based block copolymer and graphene composite lubricating oil, comprising the following steps: adding graphene to base oil for ultrasonic dispersion for 2 hours, then adding hydrogenated styrene block copolymer SEBS to continue ultrasonic dispersion for 2 hours, Promptly obtain the composite lubricating oil of hydrogenated styrene block copolymer and graphene, hereinafter referred to as "lubricating oil C";

[0029] The graphene of the present embodiment is oligolayer graphene of 3-5 layers prepared by redox method, the sheet diameter of graphene is 0.2-0.8 μm, and the mass content of graphene is 0.05%.

[0030] The mass content of the PS of the SEBS of the present embodiment is 5-20%, and the mass content of SEBS is 0.01-0.2%

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Abstract

The invention discloses a composite lubricating oil of styreneic block copolymers and graphene and a preparation method of the composite lubricating oil, and belongs to the technical field of lubricating oil. The preparation method comprises the following steps: the graphene is added to basic oil and ultrasonic dispersion is performed for 0.5-2h, then the styreneic block copolymers are added, and ultrasonic dispersion is continued for 0.5-2h, so that the composite lubricating oil of the styreneic block copolymers and the graphene is obtained. According to the invention, a small amount of the styreneic block copolymers is added to the lubricating oil, so that the viscosity-temperature performance of the composite lubricating oil can be improved, and influence of temperature variation on the viscosity index of the composite lubricating oil influenced is lessened; and meanwhile, styreneic block copolymer molecular chains enter spaces among graphene layers, so that pi-pi stacking is formed and inhibits agglomeration of the graphene layers, and the graphene can stably disperse in a good solvent of the styreneic block copolymers, and accordingly, excellent usage performance is brought for lubricating oil used for aircraft engines and motor vehicles in cold highland areas.

Description

technical field [0001] The invention relates to the technical field of lubricating oil, in particular to a composite lubricating oil of a styrene-based block copolymer and graphene and a preparation method thereof. Background technique [0002] Today, 50%-70% of the world's energy is consumed in friction. Friction is inevitable, but it can be reduced. Reducing friction and wear and energy consumption between machines is saving energy from another direction. In addition, 80% of machine failures in the mechanical production process are scrapped due to excessive wear of parts and have to be replaced. If mechanical friction and wear are reduced, the number of maintenance and the cost of replacing parts can be reduced, thereby reducing economic losses. [0003] Graphene is a two-dimensional flat film material composed of sp2 hybridization of carbon atoms, with a hexagonal honeycomb lattice and a single-atom thickness. Graphene is currently the thinnest, hardest, most conductive...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C10M161/00C10M169/04C10N30/06C10N30/04C10N30/02C10N40/25
CPCC10M161/00C10M169/044C10M2201/041C10M2205/04C10M2205/06C10N2030/02C10N2030/04C10N2030/06C10N2040/25
Inventor 康武丽刘军辉丁立连金杯张仲才
Owner SICHUAN CARBON WORLD TECH CO LTD
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