Ultrahigh-temperature-resistant lubricating oil and synthesis method thereof

Abstract

The invention discloses ultrahigh-temperature-resistant lubricating oil and a synthesis method thereof, and belongs to the field of lubricating oil. The lubricating oil is prepared from, by weight, 120-150 parts of base oil, 2-20 parts of inorganic thickener, 0.1-15 parts of modified graphene and 0.1-10 parts of additive. The lubricating oil has the advantages that phenylmethylsilicone fluid is adopted as the base oil of an ultrahigh-temperature-resistant lubricating agent; through the addition of modified graphene and in coordination with the effect of the inorganic thickener, the viscosity and abrasion resistance of the lubricating oil are adjusted, so that the lubricating oil still remains in a paste shape at 450 DEG C, shows an excellent lubricating effect and has good lubricating durability.

Description

technical field

[0001] The invention relates to the field of lubricating oil, in particular to an ultra-high temperature resistant lubricating oil and a synthesis method thereof. Background technique

[0002] Conventional lubricants are not suitable for high-temperature applications, since they are destroyed at high temperatures, for example via oxidation and / or thermal decomposition and polymerization reactions, and their lubricating properties are severely limited. In the decomposition reaction, the lubricant is broken down into low molecular weight volatile components. Its evaporation leads to undesired viscosity changes, oil loss and excessive vapor formation. This results in a loss of lubricating effect. Likewise, lubricants lose their lubricating effect through polymerization due to the formation of insoluble polymer products.

[0003] High temperature grease is divided into grease lubrication and powder lubrication: grease lubrication is generally within 350 degree...

Examples

preparation example Construction

[0046] Two of the object of the present invention is to provide a kind of synthetic method according to above-mentioned ultra-high temperature resistant lubricating oil, comprise the steps:

[0047] Step 1: Disperse graphene in a solvent, stir and disperse evenly, add modifier, heat and stir at 60°C for 1-4 hours, filter with suction or press, and dry to obtain modified graphene.

[0048] Step 2: Put the modified graphene, base oil, inorganic thickening, and additives into the lubricating oil production equipment according to the weight ratio, and adjust the speed by frequency conversion to make the stirring blade fully stir and mix the materials at a suitable speed, and mix the materials ,Discharge.

[0049] Step 3: Put the materials obtained in Step 2 into a defoaming machine, vacuum degassing and dehydrating, and pack in cans to obtain the required overtemperature-resistant lubricating oil.

[0050] As a preferred embodiment, the solvent is a common solvent, such as deioni...

Embodiment 1

[0056] The synthetic method of lubricant in the present embodiment, comprises the steps:

[0057] Step 1: Disperse graphene in a solvent, stir and disperse evenly, add POSS with good solubility, heat and stir at 60°C for 2 hours, press filter, and dry to obtain modified graphene.

[0058] Step 2: put 5 parts by weight of modified graphene, 130 parts by weight of dimethyl diphenyl silicone oil, 10 parts by weight of bentonite, and 5 parts by weight of additives into the high-speed shear emulsification stirring equipment, and adjust the speed of the stirring paddle by frequency conversion. The leaves fully stir and mix the materials at an appropriate speed, mix and discharge; the additives are one or more mixtures of antioxidants, anti-wear additives, stabilizers, corrosion inhibitors or defoamers.

[0059] Step 3: Put the material obtained in Step 2 into a degassing machine, vacuum defoam and dehydrate it, and pack it in a can to obtain the required lubricating oil.

Embodiment 2

[0061] The synthetic method of lubricant in the present embodiment, comprises the steps:

[0062] Step 1: Disperse graphene in a solvent, stir and disperse evenly, add POSS with good solubility, heat and stir at 60°C for 1 hour, press filter, and dry to obtain modified graphene.

[0063] Step 2: put 15 parts by weight of modified graphene, 120 parts by weight of dimethyl diphenyl silicone oil, 2 parts by weight of silica gel thickener, and 0.1 parts by weight of additives into a vacuum high-speed mixer, and adjust the speed by frequency conversion to make the stirring blade The leaves fully stir and mix the materials at an appropriate speed, mix and discharge; the additives are one or more mixtures of antioxidants, anti-wear additives, stabilizers, corrosion inhibitors or defoamers.

[0064] Step 3: Put the material obtained in Step 2 into a degassing machine, vacuum defoam and dehydrate it, and pack it in a can to obtain the required lubricating oil.

technical field

[0001] The invention relates to the field of lubricating oil, in particular to an ultra-high temperature resistant lubricating oil and a synthesis method thereof. Background technique

[0002] Conventional lubricants are not suitable for high-temperature applications, since they are destroyed at high temperatures, for example via oxidation and / or thermal decomposition and polymerization reactions, and their lubricating properties are severely limited. In the decomposition reaction, the lubricant is broken down into low molecular weight volatile components. Its evaporation leads to undesired viscosity changes, oil loss and excessive vapor formation. This results in a loss of lubricating effect. Likewise, lubricants lose their lubricating effect through polymerization due to the formation of insoluble polymer products.

[0003] High temperature grease is divided into grease lubrication and powder lubrication: grease lubrication is generally within 350 degree...

Examples

preparation example Construction

[0046] Two of the object of the present invention is to provide a kind of synthetic method according to above-mentioned ultra-high temperature resistant lubricating oil, comprise the steps:

[0047] Step 1: Disperse graphene in a solvent, stir and disperse evenly, add modifier, heat and stir at 60°C for 1-4 hours, filter with suction or press, and dry to obtain modified graphene.

[0048] Step 2: Put the modified graphene, base oil, inorganic thickening, and additives into the lubricating oil production equipment according to the weight ratio, and adjust the speed by frequency conversion to make the stirring blade fully stir and mix the materials at a suitable speed, and mix the materials ,Discharge.

[0049] Step 3: Put the materials obtained in Step 2 into a defoaming machine, vacuum degassing and dehydrating, and pack in cans to obtain the required overtemperature-resistant lubricating oil.

[0050] As a preferred embodiment, the solvent is a common solvent, such as deioni...

Embodiment 1

[0056] The synthetic method of lubricant in the present embodiment, comprises the steps:

[0057] Step 1: Disperse graphene in a solvent, stir and disperse evenly, add POSS with good solubility, heat and stir at 60°C for 2 hours, press filter, and dry to obtain modified graphene.

[0058] Step 2: put 5 parts by weight of modified graphene, 130 parts by weight of dimethyl diphenyl silicone oil, 10 parts by weight of bentonite, and 5 parts by weight of additives into the high-speed shear emulsification stirring equipment, and adjust the speed of the stirring paddle by frequency conversion. The leaves fully stir and mix the materials at an appropriate speed, mix and discharge; the additives are one or more mixtures of antioxidants, anti-wear additives, stabilizers, corrosion inhibitors or defoamers.

[0059] Step 3: Put the material obtained in Step 2 into a degassing machine, vacuum defoam and dehydrate it, and pack it in a can to obtain the required lubricating oil.

Embodiment 2

[0061] The synthetic method of lubricant in the present embodiment, comprises the steps:

[0062] Step 1: Disperse graphene in a solvent, stir and disperse evenly, add POSS with good solubility, heat and stir at 60°C for 1 hour, press filter, and dry to obtain modified graphene.

[0063] Step 2: put 15 parts by weight of modified graphene, 120 parts by weight of dimethyl diphenyl silicone oil, 2 parts by weight of silica gel thickener, and 0.1 parts by weight of additives into a vacuum high-speed mixer, and adjust the speed by frequency conversion to make the stirring blade The leaves fully stir and mix the materials at an appropriate speed, mix and discharge; the additives are one or more mixtures of antioxidants, anti-wear additives, stabilizers, corrosion inhibitors or defoamers.

[0064] Step 3: Put the material obtained in Step 2 into a degassing machine, vacuum defoam and dehydrate it, and pack it in a can to obtain the required lubricating oil.

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