阅读说明：本技术 一种石墨烯工业齿轮油及其制备方法 (Graphene industrial gear oil and preparation method thereof ) 是由 石帅旗 姜帅成 葛省波 于 2019-09-12 设计创作，主要内容包括：本发明公开了一种石墨烯工业齿轮油,它是由下述重量份的原料组成的：石蜡改性石墨烯3-4、烯丙基硫脲0.1-0.2、二甲氨基丙胺1-2、基础油180-200、齿轮油添加剂2-3,本发明的石蜡改性石墨烯,其不仅具有很好的润滑性能,且具有很好的抗锈性,通过poss改性,改善了石墨烯的表面活性,促进了石蜡改性石墨烯在基础油中的分散性能。(the invention discloses graphene industrial gear oil which is prepared from the following raw materials in parts by weight: 3-4 parts of paraffin modified graphene, 0.1-0.2 part of allylthiourea, 1-2 parts of dimethylaminopropylamine, 180-200 parts of base oil and 2-3 parts of gear oil additive.)

1. the graphene industrial gear oil is characterized by being prepared from the following raw materials in parts by weight:

3-4 parts of paraffin modified graphene, 0.1-0.2 part of allylthiourea, 1-2 parts of dimethylaminopropylamine, 180-200 parts of base oil and 2-3 parts of gear oil additive.

2. The graphene industrial gear oil according to claim 1, wherein the paraffin-modified graphene is composed of the following raw materials in parts by weight:

3-5 parts of graphene, 36-40 parts of microcrystalline paraffin, 8-11 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, 2-4 parts of dodecenylsuccinic acid, 0.5-1 part of calcium acetylacetonate and 1-2 parts of hydrochloric acid with the concentration of 70-85%.

3. the graphene industrial gear oil according to claim 2, wherein the preparation method of the paraffin-modified graphene comprises the following steps:

(1) adding calcium acetylacetonate into methanol 30-40 times of the weight of the calcium acetylacetonate, uniformly stirring, adding microcrystalline paraffin, feeding into a constant-temperature water bath at 55-60 ℃, adding gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane, and stirring for 1-2 hours at the constant temperature to obtain a methanol dispersion;

(2) adding graphene into nitric acid solution with the weight of 50-60 times and the concentration of 94-96%, adding dodecenylsuccinic acid, carrying out ultrasonic treatment for 10-12 hours, filtering, washing the precipitate with water, drying at 70-79 ℃ for 1-2 hours in vacuum, and cooling to normal temperature to obtain modified graphene;

(3) And adding the modified graphene into the methanol dispersion liquid, uniformly stirring, adding hydrochloric acid with the concentration of 70-85%, keeping the temperature at 60-70 ℃, stirring for 5-7 hours, discharging, cooling, performing rotary evaporation, and removing methanol to obtain the paraffin modified graphene.

4. The preparation method of the graphene industrial gear oil according to claim 1, characterized by comprising the following steps:

(1) taking 36-40% of base oil by weight, adding dimethylaminopropylamine, uniformly stirring, adding paraffin modified graphene, and stirring for 20-30 minutes at 55-60 ℃ under heat preservation to obtain a pre-dispersion liquid;

(2) And adding allyl thiourea into the rest base oil, uniformly stirring, mixing with the pre-dispersion liquid, adding a gear oil additive, and performing ultrasonic treatment for 10-15 minutes to obtain the graphene industrial gear oil.

5. the preparation method of the graphene industrial gear oil according to claim 4, wherein the gear oil additive is prepared by mixing the following raw materials in parts by weight:

0.7-1 part of polysorbate, 2-3 parts of tributyl borate, 0.1-0.2 part of isopropyl palmitate, 3-4 parts of triethanolamine borate and 20-26 parts of turpentine.

Technical Field

The invention belongs to the field of oil, and particularly relates to graphene industrial gear oil and a preparation method thereof.

Background

At present, the common problems of insufficient extreme pressure lubrication performance, insufficient antirust and anticorrosion performance, pungent smell in the machining process and the like of commercially available gear oil products can cause the service life of a cutter to be greatly shortened, the workpiece is corroded in the machining process, the surface quality of the workpiece is reduced, the machining environment is deteriorated, and the production and machining efficiency and the cost are greatly reduced.

disclosure of Invention

The invention aims to provide graphene industrial gear oil with good lubricating property and high rust resistance and a preparation method thereof.

In order to achieve the purpose, the invention adopts the following technical scheme:

the graphene industrial gear oil is prepared from the following raw materials in parts by weight:

3-4 parts of paraffin modified graphene, 0.1-0.2 part of allylthiourea, 1-2 parts of dimethylaminopropylamine, 180-200 parts of base oil and 2-3 parts of gear oil additive.

The paraffin modified graphene is prepared from the following raw materials in parts by weight:

3-5 parts of graphene, 36-40 parts of microcrystalline paraffin, 8-11 parts of gamma- (2, 3-epoxypropoxy) propyl trimethoxy silane, 2-4 parts of dodecenylsuccinic acid, 0.5-1 part of calcium acetylacetonate and 1-2 parts of hydrochloric acid with the concentration of 70-85%.

the preparation method of the paraffin-modified graphene comprises the following steps:

(1) Adding calcium acetylacetonate into methanol 30-40 times of the weight of the calcium acetylacetonate, uniformly stirring, adding microcrystalline paraffin, feeding into a constant-temperature water bath at 55-60 ℃, adding gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane, and stirring for 1-2 hours at the constant temperature to obtain a methanol dispersion;

(2) Adding graphene into nitric acid solution with the weight of 50-60 times and the concentration of 94-96%, adding dodecenylsuccinic acid, carrying out ultrasonic treatment for 10-12 hours, filtering, washing the precipitate with water, drying at 70-79 ℃ for 1-2 hours in vacuum, and cooling to normal temperature to obtain modified graphene;

(3) And adding the modified graphene into the methanol dispersion liquid, uniformly stirring, adding hydrochloric acid with the concentration of 70-85%, keeping the temperature at 60-70 ℃, stirring for 5-7 hours, discharging, cooling, performing rotary evaporation, and removing methanol to obtain the paraffin modified graphene.

a preparation method of graphene industrial gear oil comprises the following steps:

(1) taking 36-40% of base oil by weight, adding dimethylaminopropylamine, uniformly stirring, adding paraffin modified graphene, and stirring for 20-30 minutes at 55-60 ℃ under heat preservation to obtain a pre-dispersion liquid;

(2) and adding allyl thiourea into the rest base oil, uniformly stirring, mixing with the pre-dispersion liquid, adding a gear oil additive, and performing ultrasonic treatment for 10-15 minutes to obtain the graphene industrial gear oil.

The gear oil additive is prepared by mixing the following raw materials in parts by weight:

0.7-1 part of polysorbate, 2-3 parts of tributyl borate, 0.1-0.2 part of isopropyl palmitate, 3-4 parts of triethanolamine borate and 20-26 parts of turpentine.

the invention has the advantages that:

according to the preparation method, gamma- (2, 3-epoxypropoxy) propyltrimethoxysilane is adopted to treat microcrystalline paraffin and disperse the microcrystalline paraffin into methanol, graphene oxide is pretreated by dodecenyl succinic acid and then is subjected to blending reaction with a methanol dispersion liquid to prepare the pos, so that the paraffin modified graphene is obtained, and the paraffin modified graphene has good lubricating property and rust resistance, and the surface activity of the graphene is improved and the dispersing property of the paraffin modified graphene in base oil is promoted through the pos modification.

Detailed Description