CN118222348A

CN118222348A - Thin-layer lubrication antirust oil and preparation process thereof

Info

Publication number: CN118222348A
Application number: CN202410353196.6A
Authority: CN
Inventors: 屈啸天; 文明涛; 王译乐; 任真金
Original assignee: Zhejiang Lvhu Lubrication Technology Co ltd
Current assignee: Zhejiang Lvhu Lubrication Technology Co ltd
Filing date: 2024-03-26
Publication date: 2024-06-21

Abstract

The invention discloses a thin-layer lubrication rust-preventive oil and a preparation process thereof, wherein the rust-preventive oil comprises the following components in parts by mass: no. 10 white oil, no. 26 white oil, kitchen waste oil, barium dinonylnaphthalene sulfonate or calcium dinonylnaphthalene sulfonate, barium petroleum sulfonate or calcium petroleum sulfonate, dodecenyl succinic acid, dodecanedioic acid, lanolin magnesium soap, a film forming agent, an antioxidant and an auxiliary agent. The thin-layer lubricating rust preventive oil is prepared by the components according to a specific preparation process. The thin-layer lubrication rust-proof oil prepared by the invention can achieve the effects of sealing and rust prevention for more than 2 years, and simultaneously has excellent lubrication and noise reduction effects, for example, the thin-layer lubrication rust-proof oil can reduce the noise of a bearing by 4 dB-6 dB in the rotation process of the bearing ring.

Description

Thin-layer lubrication antirust oil and preparation process thereof

The invention relates to the technical field of rust prevention, in particular to thin-layer lubrication rust prevention oil and a preparation process thereof.

Background

The number of materials or articles scrapped each year due to metal corrosion is counted. The metal corrosion causes the metal to generate speckles and affects the appearance color; the mechanical properties such as strength, plasticity, toughness and the like of the metal material are reduced; shortening the service life. The metal corrosion not only consumes resources, but also easily causes disastrous accidents such as fire and explosion.

The thin-layer rust-proof oil is a lubricating grease product specially designed for protecting metal surfaces and preventing oxidation and rust. After being smeared on the surface of metal, the film can form a layer of transparent, compact and strong-adhesion soft oil film, has good rust resistance and a certain lubrication effect, and can effectively isolate air and moisture from contacting with the metal, thereby delaying or preventing rust.

The preparation of thin layer rust inhibitive oil generally comprises the steps of:

(1) Base oil selection: firstly, deeply refined mineral oil or synthetic oil is selected as base oil, which is required to have good permeability and volatility, can be uniformly distributed on the surface of metal and can be quickly dried to form a film.

(2) And (3) additive blending: composite rust and corrosion resistant additives are added, and the additives may contain various rust inhibitors (such as nitrite, sulfonate, amine compounds and the like), antioxidants and other functional aids to enhance the rust resistance of the oil product and improve the stability of the oil product under various environmental conditions. Emulsification process (if water-soluble): for the water-soluble thin-layer rust preventive oil, emulsification treatment is also needed, and the oil phase and the water phase are stably mixed together under the action of an emulsifier to form stable emulsion.

(3) The blending process comprises the following steps: under the condition of strictly controlling the temperature and the stirring speed, the base oil and all additives are fully and uniformly mixed according to a specific proportion, so that each component can fully play a role.

(4) And (3) filtering and packaging: the blended rust preventive oil is subjected to fine filtration to remove impurities, and is filled and sealed and packaged by adopting a proper container, so that the quality and storage stability of the product are ensured.

(5) And (3) quality detection: after the production is completed, the final product is subjected to strict performance tests, such as rust prevention tests, viscosity measurement, corrosion tests and the like, so that the final product is ensured to achieve the expected rust prevention effect and service life.

However, the conventional thin-layer rust preventive oil cannot meet the new application scene, so that the research on the improvement technology is always paid attention to by many researchers, and mainly comprises the following improvements

(1) Base oil optimization: research and development of novel environmentally-friendly and good-biodegradability base oils, such as synthetic esters or bio-based lubricating oils, etc., are performed to reduce the influence on the environment and improve the durability and stability of the oil film.

(2) High-efficiency antirust agent: the novel efficient antirust additive, such as a nanomaterial modified antirust agent, is adopted to enhance the adsorption force and the covering effect of the antirust additive on the metal surface, so that a denser, uniform and self-repairing antirust film is formed.

(3) Multifunctional composite additive: the composite additive integrating multiple functions of rust prevention, lubrication, oxidation resistance and the like is developed, so that the oil is multipurpose, the cost is saved, and the process flow is simplified.

(4) Water solubility and emulsification techniques: aiming at different application scenes, water-soluble rust preventive oil which can be diluted by water is developed, and long-term stability of emulsion and uniform dispersion in the use process are ensured by optimizing the selection of an emulsifying system and a stabilizer.

(5) Green harmless: the use of harmful heavy metal salts or other substances harmful to human bodies and the environment is reduced or avoided, and the green process of the product is promoted.

(6) Adaptability improvement: according to the requirements of different metal materials, working temperature, humidity conditions and workpiece storage time, a rust-preventive oil product with more pertinence and applicability is designed.

(7) Intelligent responsiveness: the intelligent response material is explored and introduced, so that the rust preventive oil can automatically enhance the rust preventive effect under specific conditions (such as when the humidity is increased), thereby improving the protective performance.

(8) The detection and evaluation method is standardized: and establishing and perfecting a quality evaluation standard system of the rust-preventive oil, ensuring that the improved product is subjected to strict test verification and meets various severe application requirements.

CN 108913312B discloses a preparation method of multifunctional rust preventive oil and multifunctional rust preventive oil, wherein the preparation method of multifunctional rust preventive oil comprises the following steps: s10, providing base oil, mineral oil, a film forming agent, an oil solvent, an antirust agent A and an antirust agent B, and dissolving the antirust agent A and the film forming agent into the mineral oil to prepare a mixture; s20, dispersing an oil solvent, an antirust agent B and base oil in the mixture to prepare multifunctional antirust oil; the rust inhibitor A is any one or a mixture of at least two of barium petroleum sulfonate, calcium petroleum sulfonate, sodium petroleum sulfonate and barium dinonyl naphthalene sulfonate; the rust inhibitor B is one or a mixture of at least two of dodecenyl succinic acid, dodecenyl succinic acid ester, heptadecenyl imidazolinyl succinic acid salt and zinc naphthenate. The raw materials adopt a specific adding sequence, and the rust inhibitor A and the rust inhibitor B are added in two steps, so that the multifunctional rust inhibitor with proper viscosity, oil film thickness, rust resistance, corrosion resistance, separation stability and water displacement property can be prepared.

The rust preventive oil on the market has a plurality of types and good quality. In the long-term sealing and protecting of metals, the anti-rust effect of many anti-rust oil is often short, the initial period can be prolonged along with the storage time of a warehouse, and some parts in stock for half a year or even a plurality of months are corroded, so that the loss is difficult to recover. Meanwhile, the formula defect is caused by the defects of many rust-proof oil production processes and the fact that the synergistic effect principle of additives is not exerted, after the rust-proof oil is adopted for rust-proof treatment of the fastener, a rust-proof oil film on a workpiece is extremely easy to oxidize to form brown oily sludge, metal under the oil film is corroded darkly, rust prevention and lubrication functions are not achieved, and the problems of increased machine joint jamming noise and the like are caused.

Disclosure of Invention

According to the invention, through long-term researches on the formula, the production process and the application, the formula is optimized to select a proper material proportion, the material synergistic effect is fully exerted, the production process flow is improved, and the product quality is improved.

The invention provides thin-layer lubrication rust-preventive oil which comprises the following components in parts by weight:

48-52 parts of No. 10 white oil

11-13 Parts of No. 26 white oil

0-30 Parts of kitchen waste oil

14-16 Parts of barium dinonyl naphthalene sulfonate or calcium dinonyl naphthalene sulfonate

14-16 Parts of barium petroleum sulfonate or calcium petroleum sulfonate

Dodecenyl succinic acid 1-3 parts

0-4 Parts of dodecanedioic acid

1-2 Parts of lanolin magnesium soap

2-4 Parts of film forming agent

1-2 Parts of antioxidant

0-3 Parts of an auxiliary agent.

The formula of the rust preventive oil disclosed by the invention adopts the mixture of the No. 10 white oil, the No. 26 white oil and the kitchen waste oil, especially the addition of the kitchen waste oil, increases the polarity of base oil, is favorable for dissolving a film forming agent and a rust preventive, and has a good synergistic effect.

The antirust agent is formed by mixing a plurality of substances, has a formula containing barium ions and a formula not containing barium ions, can select whether barium ions are needed according to different application scenes, and has a synergistic antirust effect and good performance. Especially, the introduction of acid substances, especially the addition of dodecanedioic acid, can form a buffer system with sulfonate, has better compatibility, not only increases the antirust performance, but also has better application effect for the application under acidic and alkaline conditions.

Further, the film forming agent is at least one of natural rosin, vaseline and oxidized paraffin. The film forming agent contains polar groups such as hydroxyl and the like, has good compatibility with base oil, forms an adsorption film more complete and compact, forms a layer of isolation film on the surface of metal to play a role in protecting, and simultaneously prevents the rust preventive oil from being washed away by condensed dew in salt fog and damp-heat environments to run off.

Further, the antioxidant is benzotriazole or span 80.

Further, the auxiliary agent is a mixture of tetrabutyl urea and diisobutyl methanol, and the mass ratio of the tetrabutyl urea to the diisobutyl methanol is (1-3) to 1. The addition of the auxiliary diisobutyl methanol is more favorable for the exertion of the rust-proof performance of the oil, can accelerate the formation of the rust-proof film due to the volatilization characteristic of the alcoholic hydroxyl, and the addition of the tetrabutyl urea has better solubility for the rust-proof agent and the film forming agent due to the high boiling point and the polarity, and is more favorable for improving the long-term service performance, especially the high-temperature service performance, of the rust-proof oil.

Further, the kitchen waste oil is subjected to pretreatment, wherein the pretreatment comprises the steps of acid washing, hydrogen peroxide oxidation, alkali washing, water washing and drying. The kitchen waste oil is pretreated to ensure the cleanliness of the prepared rust-preventive oil, and meanwhile, due to the introduction of polar bonds in the kitchen waste oil, the polarity of the prepared rust-preventive oil is increased, the compatibility is better, and the preparation cost can be reduced.

The invention also provides a preparation process of the thin-layer lubricating rust-preventive oil, which comprises the following steps:

s1, sequentially adding barium dinonylnaphthalene sulfonate or calcium dinonylnaphthalene sulfonate, an antioxidant, barium petroleum sulfonate or calcium petroleum sulfonate into a reaction kettle, heating to 55-65 ℃, fully stirring and reacting for 0.5-1.5 h, stopping heating, adding dodecenyl succinic acid into the reaction kettle, and fully stirring and reacting for 0.5-1.5 h;

S2, sequentially adding No. 26 white oil, kitchen waste oil, an auxiliary agent, lanolin magnesium soap, a film forming agent and dodecanedioic acid into a reaction kettle, heating to 95-105 ℃, completely dissolving, cooling to room temperature after the mixture is completely dissolved, standing for 24 hours, filtering, and storing in an oil tank for later use;

s3, adding the white oil No. 10 into a reaction kettle, adding the mixture in the step S1 into the reaction kettle in the step S3, heating to 40 ℃ and stirring for 1h, adding the mixed solution in the step S2 into the reaction kettle in the step S3, continuously stirring for 1h, and transferring into an oil tank after full stirring;

And S4, placing the oil product in the oil tank in the step S3 for a week, filtering the oil product in a dust-free workshop through a precise filter element filter, and directly placing the filtered oil product in a 200L clean new barrel for packaging to obtain the thin-layer lubrication antirust oil.

The invention controls the special feeding sequence and the process condition, and the finally prepared rust preventive oil has good performance and longer service cycle.

Furthermore, the prepared rust-proof oil can achieve the aim of sealing and rust prevention for more than 2 years.

Further, the cleanliness of the thin-layer lubricating rust preventive oil prepared in step S4 was 7 grade.

The thin-layer lubrication rust-proof oil prepared by the invention can achieve the effects of sealing and rust prevention for more than 2 years, and simultaneously has excellent lubrication and noise reduction effects, for example, the thin-layer lubrication rust-proof oil can reduce the noise of a bearing by 4 dB-6 dB in the rotation process of the bearing ring.

Detailed Description

The technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention, and it is apparent that the described embodiments are only some embodiments of the present invention, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

The thin-layer lubrication rust-preventing oil comprises the following components in parts by weight:

500kg of No. 10 white oil

125Kg of No. 26 white oil

150Kg of barium dinonyl naphthalene sulfonate

Barium petroleum sulfonate 145kg

Dodecenyl succinic acid 20kg

Lanolin magnesium soap 10kg

Oxidized Paraffin 30kg

Span 10kg.

The preparation method of the thin-layer lubricating rust preventive oil comprises the following steps:

s1, sequentially adding barium dinonyl naphthalene sulfonate, an antioxidant and barium petroleum sulfonate into a reaction kettle, heating to 55-65 ℃, fully stirring and reacting for 1h, stopping heating, adding dodecenyl succinic acid into the reaction kettle, and fully stirring and reacting for 1h;

S2, sequentially adding No. 26 white oil, lanolin magnesium soap and a film forming agent into a reaction kettle, heating to 95-105 ℃, completely dissolving, cooling to room temperature after the mixture is clear and transparent, standing for 24 hours, filtering, and storing in an oil tank for standby;

Example 2

No. 10 white oil 510kg

No. 26 white oil 130kg

150Kg of kitchen waste oil

Dinonyl naphthalene sulfonic acid calcium 160kg

150Kg of calcium petroleum sulfonate

Dodecenyl succinic acid 25kg

Dodecanedioic acid 30kg

Lanolin magnesium soap 10kg

Vaseline 30kg

Benzotriazole 10kg

Tetrabutyl urea 10kg, diisobutyl methanol 10kg.

s1, sequentially adding dinonyl naphthalene calcium sulfonate, an antioxidant and petroleum calcium sulfonate into a reaction kettle, heating to 55-65 ℃, fully stirring and reacting for 1.5 hours, stopping heating, and then adding dodecenyl succinic acid into the reaction kettle, and fully stirring and reacting for 1.5 hours;

S2, sequentially adding No. 26 white oil, kitchen waste oil, an auxiliary agent, lanolin magnesium soap, a film forming agent and dodecanedioic acid into a reaction kettle, heating to 95-105 ℃, completely dissolving, cooling to room temperature after the mixture is completely dissolved, standing for 24 hours, filtering, and storing in an oil tank for later use; the kitchen waste oil is subjected to pretreatment, wherein the pretreatment process comprises acid washing, hydrogen peroxide oxidation, alkali washing, water washing and drying. In the pretreatment process, the acid is 3wt% sulfuric acid, the hydrogen peroxide is 3wt% hydrogen peroxide, and the alkali is 1wt% strong sodium oxide.

Example 3

No. 10 white oil 510kg

No. 26 white oil 130kg

150Kg of kitchen waste oil

Dinonyl naphthalene sulfonic acid calcium 160kg

150Kg of calcium petroleum sulfonate

Dodecenyl succinic acid 25kg

Dodecanedioic acid 30kg

Lanolin magnesium soap 10kg

20Kg of natural rosin

Span 80 kg

20Kg of tetrabutylurea and 10kg of diisobutylcarbinol.

s2, sequentially adding No. 26 white oil, kitchen waste oil, an auxiliary agent, lanolin magnesium soap, a film forming agent and dodecanedioic acid into a reaction kettle, heating to 95-105 ℃, completely dissolving, cooling to room temperature after the mixture is completely dissolved, standing for 24 hours, filtering, and storing in an oil tank for later use; the kitchen waste oil is subjected to pretreatment, wherein the pretreatment process comprises acid washing, hydrogen peroxide oxidation, alkali washing, water washing and drying.

Example 4

The dodecanedioic acid component of example 2 was removed, and the details of the procedure are not repeated in example 2.

Example 5

The tetrabutyl urea and diisobutyl methanol components of example 2 were removed and the details thereof were not repeated in the same manner as in example 2.

Example 6

The kitchen waste oil component in example 2 is replaced by the white oil No. 10 with equal mass, and the other components are the same as those in example 2, and are not repeated.

Example 7

The calcium dinonylnaphthalene sulfonate in example 2 is replaced with barium dinonylnaphthalene sulfonate, and the calcium petroleum sulfonate is replaced with barium petroleum sulfonate, and the other steps are the same as those in example 2, and are not repeated.

Comparative example 1

The pretreated kitchen waste oil is replaced by the white oil No. 10 and the white oil No. 26 in the embodiment 2, and the details are not repeated in the embodiment 2.

Comparative example 2

The pretreated kitchen waste oil in the embodiment 2 is changed into kitchen waste oil which is only subjected to general water washing and drying, and the other parts are the same as the embodiment 2 and are not repeated.

The lubricating rust preventive oils prepared in examples and comparative examples were subjected to performance test, and the test results are shown in table 1.

TABLE 1

Sequence number	Grade A, 45# steel sheet, tian, GB/T2361 for damp-heat experiment	Salt spray experiment grade A, 45# steel sheet, day, SH/T0081	Sealing rust-proof experiment, year
				Example 1	170	160	2.0
Example 2	205	182	2.5
				Example 3	210	179	2.5
Example 4	192	176	2.2
				Example 5	193	172	2.0
Example 6	188	169	2.2
				Example 7	215	188	2.8
Comparative example 1	151	123	1.0
				Comparative example 2	66	41	0.5

Test data of examples 1-3 show that the prepared antirust oil performance is obviously reduced due to the lack of key components; the data of example 4 shows that dodecanedioic acid can improve the performance of the prepared rust preventive oil; the data of the example 5 show that the auxiliary agent can improve the performance of the rust-preventive oil, particularly the sealing rust-preventive experiment time, and the data of the example 6 show that the kitchen waste oil can improve the performance of the prepared rust-preventive oil, and the production cost is reduced; the data of example 7 shows that the rust inhibitor containing barium ions has better rust resistance, but the rust inhibitor containing calcium can be completely replaced by the rust inhibitor containing barium ions due to the application scene of the barium ions, and the performance is slightly reduced; the data of comparative example 1 shows that the base oil used entirely with the kitchen waste oil, the performance of the prepared rust preventive oil is drastically reduced, probably because the kitchen waste oil still contains some impurities that affect the performance of the rust preventive oil; the data of comparative example 2 shows that the prepared rust preventive oil has poor performance without removing impurities by the treatment method specific to the present invention using the simply treated waste kitchen oil.

Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The thin-layer lubrication rust-preventing oil is characterized by comprising the following components in parts by weight:

48-52 parts of No. 10 white oil

11-13 Parts of No. 26 white oil

0-30 Parts of kitchen waste oil

14-16 Parts of barium petroleum sulfonate or calcium petroleum sulfonate

Dodecenyl succinic acid 1-3 parts

0-4 Parts of dodecanedioic acid

1-2 Parts of lanolin magnesium soap

2-4 Parts of film forming agent

1-2 Parts of antioxidant

0-3 Parts of an auxiliary agent.

2. The thin layer lubrication rust preventive oil according to claim 1, wherein the film forming agent is at least one of natural rosin, vaseline and oxidized paraffin.

3. The thin layer lubrication rust preventive oil according to claim 1, wherein the antioxidant is benzotriazole or span 80.

4. The thin-layer lubricating rust preventive oil according to claim 1, wherein the auxiliary agent is a mixture of tetrabutyl urea and diisobutyl methanol, and the mass ratio of the tetrabutyl urea to the diisobutyl methanol is (1-3) to 1.

5. The thin layer lubrication rust preventive oil according to claim 1, wherein the kitchen waste oil is subjected to pretreatment including acid washing, hydrogen peroxide oxidation, alkali washing, water washing and drying.

6. The preparation process of the thin-layer lubricating rust preventive oil according to any one of claims 1 to 5, characterized by comprising the following steps:

S2, sequentially adding No. 26 white oil, kitchen waste oil, an auxiliary agent, lanolin magnesium soap, a film forming agent and dodecenyl succinic acid into a reaction kettle, heating to 95-105 ℃, completely dissolving, cooling to room temperature after the mixture is completely dissolved, standing for 24 hours, filtering, and storing in an oil tank for later use;

7. The process for preparing the thin-layer lubricating rust preventive oil according to claim 6, wherein the prepared rust preventive oil can achieve seal rust prevention for more than 2 years.

8. The process for preparing a thin-layer lubricating rust preventive oil according to claim 6, wherein the cleanliness of the thin-layer lubricating rust preventive oil prepared in step S4 is 7.