Preparation method for anti-wear reagent at extreme pressure and application in full synthetic water-based molding liquid

An anti-wear agent and molding fluid technology, applied in additives, lubricating compositions, petroleum industry and other directions, can solve the problems of anti-oxidation, anti-detergency, weak repair function and poor multi-functionality, and achieve good biodegradability, Good abrasion resistance, excellent anti-corrosion effect

Inactive Publication Date: 2019-06-14
SHANDONG YUANGEN PETROLEUM CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Because traditional extreme pressure antiwear agents face various environmental protection problems, and have poor multifunctionality, anti-oxidation, anti-cleaning properties, and weak repair functions, people have paid more attention to rare earths and their compounds in recent years.

Method used

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  • Preparation method for anti-wear reagent at extreme pressure and application in full synthetic water-based molding liquid

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] A preparation method of an antiwear agent, comprising the following steps,

[0034] (1) Preparation of DMF homogeneous dispersion of carboxylated graphene oxide:

[0035] Take 1mg / mL graphene oxide uniform dispersion, add hydrobromic acid, stir vigorously at room temperature for 8h, add oxalic acid, continue to react for 3h, wash with deionized water until neutral, and then use DMF to make the solution concentration 1mg / mL, continuous ultrasonic dispersion for 20h, to obtain a homogeneous dispersion of carboxylated graphene oxide in DMF.

[0036] (2) Graphene oxide composite modified by lanthanum phthalocyanine

[0037] Take the DMF homogeneous dispersion of carboxylated graphene oxide, tetraaminolanthanum phthalocyanine EDC, and DMAP, heat at 80°C under vacuum nitrogen protection, react for 45h, cool and centrifuge and wash to obtain the graphene oxide compound modified by lanthanum phthalocyanine , that is, the antiwear agent.

[0038] The EDC is 1-(3-dimethylamino...

Embodiment 2

[0040] A preparation method of an antiwear agent, comprising the following steps,

[0041] (1) Preparation of DMF homogeneous dispersion of carboxylated graphene oxide:

[0042] Take 1mg / mL graphene oxide uniform dispersion, add hydrobromic acid, stir vigorously at room temperature for 15h, add oxalic acid, continue to react for 5h, wash with deionized water until neutral, and then use DMF to make the solution concentration 1mg / mL, continuous ultrasonic dispersion for 30h, to obtain a homogeneous dispersion of carboxylated graphene oxide in DMF.

[0043] (2) Graphene oxide composite modified by lanthanum phthalocyanine

[0044] Take the DMF homogeneous dispersion of carboxylated graphene oxide, tetraaminolanthanum phthalocyanine EDC, and DMAP, heat at 99°C under vacuum nitrogen protection, react for 55h, cool and centrifuge and wash to obtain the graphene oxide compound modified by lanthanum phthalocyanine , that is, the antiwear agent.

[0045] The EDC is 1-(3-dimethylamin...

Embodiment 3

[0047] A preparation method of an antiwear agent, comprising the following steps,

[0048] (1) Preparation of DMF homogeneous dispersion of carboxylated graphene oxide:

[0049] Take 1mg / mL graphene oxide uniform dispersion, add hydrobromic acid, stir vigorously at room temperature for 12h, add oxalic acid, continue to react for 4h, wash with deionized water until neutral, and then use DMF to make the solution concentration 1 mg / mL, continuous ultrasonic dispersion for 24 hours, to obtain a homogeneous dispersion of carboxylated graphene oxide in DMF.

[0050] (2) Graphene oxide composite modified by lanthanum phthalocyanine

[0051] Take the DMF homogeneous dispersion of carboxylated graphene oxide, tetraaminolanthanum phthalocyanine EDC, DMAP, heat at 90°C under vacuum nitrogen protection, react for 48h, cool and centrifuge and wash to obtain the graphene oxide compound modified by lanthanum phthalocyanine , that is, the antiwear agent.

[0052] The EDC is 1-(3-dimethylam...

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Abstract

The invention discloses a preparation method for an anti-wear reagent at extreme pressure and an application in full synthetic water-based molding liquid and relates to the field of metal forming lubricant. The anti-wear reagent at extreme pressure comprises the following components by weight percent: 70%-85% of base liquor, 10%-19% of oiliness agent, 2.3-8% of anti-wear reagent at extreme pressure and 2-8.7% of antirust agent. The full synthetic water-based molding liquid is prepared according to the following steps: weighting mixture of water and ethylene glycol, water-soluble polyether, benzotriazole and phthalocyanine lanthanum modified graphene oxide compound; putting the weighted mixture of water and ethylene glycol into a stirring reaction kettle; adding water-soluble polyether; heating to 60 DEG C in water bath and continuously stirring till the solution in kettle is transparent and uniform, and then stopping heating; adding benzotriazole and phthalocyanine lanthanum modified graphene oxide compound into the acquired solution in turn, wherein another reagent shall be added after uniformly stirring and mixing each previously added component; stirring 10-30 minutes till uniformly mixing after adding all the components.

Description

technical field [0001] The invention relates to the field of metal forming lubricants, in particular to a preparation method of an extreme pressure antiwear agent and its application in a fully synthetic water-based forming fluid. Background technique [0002] Since the advent of water-based metalworking fluids in the 1940s, due to the incomparable cooling performance and low cost of oil-based fluids, it has attracted widespread attention in the market, resulting in the original oil-based metalworking fluids being gradually replaced by water-based metalworking fluids. (especially fully synthetic water-based metalworking fluid) instead. [0003] Water-based metalworking fluids have gone through the process of developing from emulsions to synthetic fluids and then to microemulsions in western developed countries, and microemulsions have been developed and applied unprecedentedly. In my country, metalworking fluids are still dominated by emulsions. In the 1980s, there was an u...

Claims

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Application Information

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IPC IPC(8): C10M125/02C10M141/06C10M173/00C10N30/06C10N30/12C10N40/20
Inventor 何茂伟袁俊洲徐金玲纪祥娟乔良
Owner SHANDONG YUANGEN PETROLEUM CHEM
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