CN105296053B - The preparation method of graphene lube oil additive - Google Patents
The preparation method of graphene lube oil additive Download PDFInfo
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- CN105296053B CN105296053B CN201510677968.2A CN201510677968A CN105296053B CN 105296053 B CN105296053 B CN 105296053B CN 201510677968 A CN201510677968 A CN 201510677968A CN 105296053 B CN105296053 B CN 105296053B
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Abstract
The present invention relates to a kind of its preparation method of graphene lube oil additive, belong to technical field of lubricating oil.Graphene oxide solution low-speed centrifugal is separated, takes upper liquid, graphene oxide powder is obtained through low temperature drying；It is heated under vacuo permanent dry, obtain graphene oxide powder, mixed with dispersant, base oil, it is placed in high-temperature high-pressure reaction kettle and handles after well mixed, obtain lipophilic graphene, mixed with dispersant, base oil or lipophilic graphene mixes with finished lube, obtain graphene lube oil additive.Present invention process is simply, conveniently, cost-effective, has excellent dispersiveness and stability between each component, solves the problems, such as nanometer additive long-time stability.Lubricating oil added with the present invention is applied in machine operation, it is possible to increase mechanical devices abrasion resistance and bearing capacity, while also there is protection and high repair function to mechanical devices surface.
Description
Technical field
The present invention relates to a kind of preparation method of graphene lube oil additive, belong to technical field of lubricating oil.
Background technology
A kind of lubricating oil oil product very high as important, technology content, application is very extensive, nearly all
Mechanical field will use.The value volume and range of product of China's lube product is constantly increasing, but product quality and class and hair
Compared up to country and very big gap also be present, therefore it is compeling for China's lubricating oil industry to improve production quality, improve product specification
Being essential will.
Lubricating oil is typically made up of base oil and additive two parts.The quality of base oil is the basic of lubricating oil, addition
The quality and performance of agent are the marrow of lubricating oil, and the quality and performance of additive and the ratio of addition directly influence lubricating oil
Performance.As a kind of novel nano-material, graphene is applied to have what Conventional nano particle did not possessed in lubricating oil
Many advantages.For the coefficient of friction of graphene in itself close to zero, greasy property is outstanding, and two-dimensional structure physicochemical properties are stable,
Heat conductivility with superelevation, proportion is small, and easily carries out a variety of modifications, can solve nanometer additive long-time stability and ask
Topic.
Therefore, using novel nano-material graphene as lube oil additive, develop with good abrasion resistance, Gao Cheng
Loading capability, the lubricating oil to mechanical surface with certain repair function, a series of new lube product is formed, produced for lubricating oil
Product are quickly marched toward high-end make contributions by low side.
The content of the invention
For the problems such as conventional lubrication oil service life is short, wear resistence is poor, the invention provides a kind of graphene lubricating oil
The preparation method of additive, it is applied to using nano-graphene as lube oil additive in lubricating oil, there is protection and repair
Function, i.e., diaphragm is formed in mechanical inner wall surface, even this tunic hydrogen atom can not also penetrate.When graphene is begun to wear out
When, hydrogen atom transition simultaneously repairs lattice, and this represents that the lubricating oil of addition nano-graphene can keep permanent effective.
The technical solution adopted by the present invention is as follows：
A kind of preparation method of graphene lube oil additive, is carried out in accordance with the following steps：
(1) graphene oxide solution low-speed centrifugal is separated, takes upper liquid, the few layer oxidation of puffy is obtained through low temperature drying
Graphene powder；
(2) graphene oxide powder obtained by step (1) is heated under vacuo until permanent dry, heating-up temperature 40-200
℃；
(3) graphene oxide powder obtained after step (2) processing is mixed with dispersant, base oil, its quality
Part proportioning is as follows：Graphene oxide powder 0.1-20 parts, dispersant 0.1-20 parts, base oil 60-99.8 parts；Each component mixing is equal
It is placed in high-temperature high-pressure reaction kettle and handles after even, treatment temperature is 100-200 DEG C, and absolute pressure is less than 1.6MPa, takes out reaction
Product, after being filtered or being centrifuged, obtain lipophilic graphene；
(4) the lipophilic graphene that step (3) obtains is mixed with dispersant, base oil according to following proportion by weight：
Lipophilic graphene 0.1-20 parts, dispersant 0.1-20 parts, base oil 60-99.8 parts；Or step (3) is obtained
Lipophilic graphene mixed with finished lube according to following proportion by weight：Lipophilic graphene 0.1-20 parts, finished product profit
Lubricating oil 80-99.9 parts；Finally give graphene lube oil additive.
The invention has the advantages that：
The preparation method of graphene lube oil additive provided by the invention, simple production process, conveniently is cost-effective,
There is excellent dispersiveness and stability between each component, solve the problems, such as nanometer additive long-time stability.Added with this
The lubricating oil of invention is applied in machine operation, it is possible to increase mechanical devices abrasion resistance and bearing capacity, while also to machinery
Device surface has protection and high repair function.
Further, prioritization scheme of the invention is：
Low-speed centrifugal is that centrifugal force is less than 5000 × g in the step (1).
Few layer graphene oxide is that the number of plies is less than 6 layers in the step (1).
Base oil is using the mineral oil or artificial oil commonly used in lubricating oil blending production in the step (3).
Dispersant uses oleic acid or imine compound or neopelex surface-active in the step (3)
Agent.
Step (3) the high temperature reaction under high pressure processing time is 1-2 hours.
Embodiment
Be below specific embodiment to the detailed description that carries out of the present invention, but embodiment the present invention is not done it is any type of
Limit.
Embodiment 1：
A kind of preparation method of graphene lube oil additive, is carried out in accordance with the following steps：
(1) graphene oxide solution is centrifuged in the case where centrifugal force is 4000 × g, takes upper liquid, obtained through low temperature drying
To the few layer graphene oxide powder of puffy.
(2) graphene oxide powder obtained by step (1) is heated under vacuo until permanent dry, heating-up temperature 40-200
℃。
(3) graphene oxide powder obtained after step (2) processing is mixed with dispersant, base oil, its quality
Part proportioning is as follows：Graphene oxide powder 0.1g, oleic acid 0.1g, base oil 99.8g；High temperature height is placed in after each component is well mixed
Handled in pressure reactor, treatment temperature is 150 DEG C, and absolute pressure 1.5MPa, constant temperature naturally cools to room temperature after 1 hour, takes
Go out reaction product, after being centrifuged, obtain lipophilic graphene；
(4) the lipophilic graphene that step (3) obtains is mixed with dispersant, base oil according to following proportion by weight：
Lipophilic graphene 0.1g, oleic acid 0.1g, base oil 99.8g；It is mixed uniformly, that is, obtains graphene lube oil additive.
Embodiment 2：
A kind of preparation method of graphene lube oil additive, is carried out in accordance with the following steps：
(1) graphene oxide solution is centrifuged in the case where centrifugal force is 3500 × g, takes upper liquid, obtained through low temperature drying
To the few layer graphene oxide powder of puffy.
(2) graphene oxide powder obtained by step (1) is heated under vacuo until permanent dry, heating-up temperature 40-200
℃。
(3) graphene oxide powder obtained after step (2) processing is mixed with dispersant, base oil, its quality
Part proportioning is as follows：Graphene oxide powder 10g, oleic acid 10g, base oil 80g；High temperature high pressure reverse is placed in after each component is well mixed
Answer in kettle and handle, treatment temperature is 180 DEG C, absolute pressure 1.5MPa, and constant temperature naturally cools to room temperature after 1 hour, is taken out anti-
Product is answered, after being centrifuged, obtains lipophilic graphene；
(4) the lipophilic graphene that step (3) obtains is mixed with dispersant, base oil according to following proportion by weight：
Lipophilic graphene 10g, oleic acid 10g, base oil 80g；It is mixed uniformly, that is, obtains the addition of graphene lubricating oil
Agent.
Embodiment 3：
A kind of preparation method of graphene lube oil additive, is carried out in accordance with the following steps：
(1) graphene oxide solution is centrifuged in the case where centrifugal force is 4000 × g, takes upper liquid, obtained through low temperature drying
To the few layer graphene oxide powder of puffy.
(2) graphene oxide powder obtained by step (1) is heated under vacuo until permanent dry, heating-up temperature 40-200
℃。
(3) graphene oxide powder obtained after step (2) processing is mixed with dispersant, base oil, its quality
Part proportioning is as follows：Graphene oxide powder 20g, oleic acid 20g, base oil 60g；High temperature high pressure reverse is placed in after each component is well mixed
Answer in kettle and handle, treatment temperature is 150 DEG C, absolute pressure 1.5MPa, and constant temperature naturally cools to room temperature after 1.5 hours, is taken out
Reaction product, after being centrifuged, obtain lipophilic graphene；
(4) the lipophilic graphene that step (3) obtains is mixed with finished lube according to following proportion by weight：
Lipophilic graphene 20g, finished lube 80g；It is mixed uniformly, that is, obtains graphene lube oil additive.
Embodiment 4：
A kind of preparation method of graphene lube oil additive, is carried out in accordance with the following steps：
(1) graphene oxide solution is centrifuged in the case where centrifugal force is 4000 × g, takes upper liquid, obtained through low temperature drying
To the few layer graphene oxide powder of puffy.
(2) graphene oxide powder obtained by step (1) is heated under vacuo until permanent dry, heating-up temperature 40-200
℃。
(3) graphene oxide powder obtained after step (2) processing is mixed with dispersant, base oil, its quality
Part proportioning is as follows：Graphene oxide powder 10g, neopelex 10g, base oil 80g；Each component is well mixed rearmounted
Handled in high-temperature high-pressure reaction kettle, treatment temperature is 150 DEG C, and absolute pressure 1.5MPa, constant temperature naturally cools to after 1 hour
Room temperature, reaction product is taken out, after being centrifuged, obtains lipophilic graphene；
(4) the lipophilic graphene that step (3) obtains is mixed with dispersant, base oil according to following proportion by weight：
Lipophilic graphene 10g, neopelex 10g, base oil 80g；It is mixed uniformly, that is, obtains graphite
Alkene lube oil additive.
Embodiment 5：
A kind of preparation method of graphene lube oil additive, is carried out in accordance with the following steps：
(1) graphene oxide solution is centrifuged in the case where centrifugal force is 4000 × g, takes upper liquid, obtained through low temperature drying
To the few layer graphene oxide powder of puffy.
(2) graphene oxide powder obtained by step (1) is heated under vacuo until permanent dry, heating-up temperature 40-200
℃。
(3) graphene oxide powder obtained after step (2) processing is mixed with dispersant, base oil, its quality
Part proportioning is as follows：Graphene oxide powder 10g, group with imine moiety 10g, base oil 80g；High temperature is placed in after each component is well mixed
Handled in autoclave, treatment temperature is 150 DEG C, and absolute pressure 1.5MPa, constant temperature naturally cools to room after 1.5 hours
Temperature, reaction product is taken out, after being centrifuged, obtains lipophilic graphene；
(4) the lipophilic graphene that step (3) obtains is mixed with dispersant, base oil according to following proportion by weight：
Lipophilic graphene 10g, group with imine moiety 10g, base oil 80g；It is mixed uniformly, that is, obtains graphene lubrication
Oil additive.
Claims (6)
1. a kind of preparation method of graphene lube oil additive, it is characterised in that carry out in accordance with the following steps：
(1) graphene oxide solution low-speed centrifugal is separated, takes upper liquid, the few layer graphite oxide of puffy is obtained through low temperature drying
Alkene powder；
(2) graphene oxide powder obtained by step (1) is heated under vacuo until permanent dry, heating-up temperature is 40-200 DEG C；
(3) graphene oxide powder obtained after step (2) processing is mixed with dispersant, base oil, its mass parts is matched somebody with somebody
Than as follows：Graphene oxide powder 0.1-20 parts, dispersant 0.1-20 parts, base oil 60-99.8 parts；After each component is well mixed
It is placed in high-temperature high-pressure reaction kettle and handles, treatment temperature is 100-200 DEG C, and absolute pressure is less than 1.6MPa, takes out reaction generation
Thing, after being filtered or being centrifuged, obtain lipophilic graphene；
(4) the lipophilic graphene that step (3) obtains is mixed with dispersant, base oil according to following proportion by weight：
Lipophilic graphene 0.1-20 parts, dispersant 0.1-20 parts, base oil 60-99.8 parts；Or the parent for obtaining step (3)
Oil type graphene mixes with finished lube according to following proportion by weight：Lipophilic graphene 0.1-20 parts, finished lube
80-99.9 parts；Finally give graphene lube oil additive.
2. the preparation method of graphene lube oil additive according to claim 1, it is characterised in that low in step (1)
Speed centrifugation is that centrifugal force is less than 5000 × g.
3. the preparation method of graphene lube oil additive according to claim 1, it is characterised in that few in step (1)
Layer graphene oxide is that the number of plies is less than 6 layers.
4. the preparation method of graphene lube oil additive according to claim 1, it is characterised in that base in step (3)
Plinth oil is using the mineral oil or artificial oil commonly used in lubricating oil blending production.
5. the preparation method of graphene lube oil additive according to claim 1, it is characterised in that divide in step (3)
Powder uses oleic acid or imine compound or neopelex surfactant.
6. the preparation method of graphene lube oil additive according to claim 1, it is characterised in that high in step (3)
Warm reaction under high pressure processing time is 1-2 hours.
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| CN109777576B (en) * | 2019-02-22 | 2022-03-08 | 宁波石墨烯创新中心有限公司 | Graphene lubricating oil additive and preparation method thereof |
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