Corrosion-resistant anti-rust oil and preparation method thereof

Abstract

The invention belongs to the technical field of anti-rust oil and discloses anti-corrosion anti-rust oil and a preparation method thereof, and the anti-corrosion anti-rust oil comprises 80-90 parts of base oil, 10-20 parts of an anti-rust agent and 1-3 parts of an antioxidant. The rust remover is formed by mixing calcium carbonate and sorbitan monooleate, so that a more comprehensive anti-rust effect can be provided, and the corrosion resistance of the anti-rust oil is enhanced; the weight part ratio of the calcium to the sorbitan monooleate is 1: (1-75); the type of the base oil is 150N base oil, 150SN base oil and refined kerosene; a more stable base oil system is formed by mixing, so that the lubricity and adhesiveness of the anti-rust oil are enhanced; the calcium sulfonate is chemically adsorbed on the metal surface to form a layer of barrier which is not easily permeated by water and oxygen; and the sorbitan monooleate enhances the compactness and durability of the antirust agent by utilizing the good spreadability and adhesion of the sorbitan monooleate on the metal surface.

Description

Technical Field

[0001] The present application relates to the technical field of rust-proof oil and its preparation, and more specifically, to a corrosion-resistant rust-proof oil and its preparation method. Background Art

[0002] Lubricating anti-rust oil can effectively protect materials such as steel and iron from rusting. Chinese patent number CN107011976A discloses a long-lasting anti-rust oil for cast iron parts and a preparation method thereof. The long-lasting anti-rust oil for cast iron parts is made of the following raw materials in parts by weight: 90-110 parts of base oil, 3-5 parts of calcium petroleum sulfonate, 1.5-2.5 parts of N-oleoylsarcosine-2-aminoethyl heptadecenyl imidazoline, 0.1-0.4 parts of ricinoleic acid, 0.5-0.8 parts of benzotriazole, 1-3 parts of triglycerol monostearate, alkylphenol polyoxyethylene, 1-2 parts of glycerol monostearate, 1-3 parts of alkylphenol polyoxyethylene, 1-2 parts of glycerol monostearate ... 0.2-0.6 parts of olefin ether, 1-2 parts of octadecyl methacrylate, 0.2-0.4 parts of silane coupling agent KH540, 0.5-1 parts of microcrystalline wax, 0.05-0.15 parts of tetrapod-shaped zinc oxide whiskers, 0.05-0.1 parts of nanorectorite, and 0.6-1.2 parts of phenolic antioxidant can form a beautiful, uniform and stable oil film on the surface of the cast iron parts, which can effectively improve the corrosion resistance and moisture and heat resistance of the cast iron parts, has a good protective effect on the surface of the cast iron parts, and has a long anti-rust time.

[0003] However, the above technical solution has the following defects: the above technical solution uses calcium petroleum sulfonate as one of the main rust inhibitors, but the rust prevention effect of calcium petroleum sulfonate may be affected by environmental conditions (such as temperature, humidity, pH, etc.), and it is not enough to provide long-term and comprehensive rust prevention protection when it acts alone. Although corrosion inhibitors such as benzotriazole help to enhance the rust prevention effect, their content range is relatively narrow (0.5-0.8 parts), which is not enough to provide sufficient corrosion resistance in complex environments.

[0004] To this end, the present application proposes a corrosion-resistant and rust-proof oil and a preparation method thereof to solve the above-mentioned problems.

[0005] Application Contents

[0006] In order to solve the above problems, the present application provides a corrosion-resistant and rust-proof oil and a preparation method thereof.

[0007] The present application provides a corrosion-resistant and rust-proof oil and a preparation method thereof using the following technical solutions:

[0008] A corrosion-resistant and rust-proof oil, comprising the following components by weight:

[0009] 80-90 parts of base oil, 10-20 parts of rust inhibitor, 1-3 parts of antioxidant.

[0010] Furthermore, the rust remover is a mixture of calcium carbonate and sorbitan monooleate.

[0011] Through the above technical solution, a more comprehensive anti-rust effect can be provided and the corrosion resistance of the anti-rust oil can be enhanced.

[0012] Furthermore, the weight ratio of calcium sorbate and sorbitan monooleate is 1:(1-75).

[0013] Furthermore, the base oil is a mixture of 150N base oil, 150SN base oil and refined kerosene.

[0014] Through the above technical solution, a more stable base oil system is provided, and the lubricity and adhesion of the rust-proof oil are enhanced.

[0015] Furthermore, the mixing weight ratio of 150N base oil, 150SN base oil and refined kerosene is 1:(2-4):(0.5-1.5):(0.05-0.2).

[0016] Furthermore, the antioxidant is di-tert-butyl-p-cresol.

[0017] Through the above technical solution, di-tert-butyl-p-cresol is used as an antioxidant, which can improve the antioxidant performance of the rust-proof oil and extend its service life.

[0018] A method for preparing corrosion-resistant and rust-proof oil, based on the corrosion-resistant and rust-proof oil according to claim 1, characterized in that the method comprises the following steps:

[0019] S1. Put 80-90 parts of base oil into a conical flask, then introduce nitrogen to expel the air, and heat the conical flask in a water bath in an environment filled with nitrogen;

[0020] S2, add 10-20 parts of rust inhibitor to the conical flask and continue to heat it in a water bath to raise the temperature. At this temperature, add 1-3 parts of phenolic antioxidant to the conical flask and keep it warm, then cool it to room temperature;

[0021] S3, subjecting the mixture obtained in step S2 to ultrasonic dispersion treatment at 200-300W for 10-15min;

[0022] S4, heating the mixture obtained in step S3 in an oil bath, then stopping the heating and cooling directly, keeping warm and stirring for 30 minutes, standing and cooling to room temperature, and then degassing and filtering to obtain a finished product.

[0023] Furthermore, in step S1, the water bath heating needs to be heated to 90° C. and heated for 65 to 75 minutes.

[0024] Through the above technical solution, the temperature and time of water bath heating are controlled to ensure sufficient heating of the base oil and effective discharge of nitrogen, laying a good foundation for subsequent steps.

[0025] Furthermore, in step S2, the water bath heating needs to be heated to 90° C. and heated for 60-70 min; after adding the phenolic antioxidant, the temperature is kept for 20 min, and then the temperature is cooled to 40° C. at room temperature.

[0026] Through the above technical solution, it can be ensured that the anti-rust components of the anti-rust oil are fully mixed and reacted, thereby improving its performance.

[0027] Furthermore, the oil bath heating temperature in step S4 needs to be 120-125° C. and last for 10-15 minutes; after the heating stops, it needs to be cooled to 70-75° C.

[0028] Through the above technical solution, the stability of the anti-rust oil at high temperature can be ensured, and its performance can be further improved through cooling and heat preservation stirring.

[0029] In summary, the present application includes at least one of the following beneficial technical effects:

[0030] (1) The uniformity and stability of the rust-proof oil can be ensured through a specific preparation method, including nitrogen evacuation, water bath heating, ultrasonic dispersion treatment, oil bath heating, and degassing filtration. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a flow chart of the method of this application. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present application in conjunction with the drawings in the embodiments of the present application; it is obvious that the described embodiments are only part of the embodiments of the present application, rather than all the embodiments, and all other embodiments obtained by ordinary technicians in this field based on the embodiments in the present application without making creative work are within the scope of protection of the present application.

[0033] Example:

[0034] The following is combined with Figure 1 - Provide further details on this application.

[0035] The present application embodiment discloses Figure 1 .

[0036] The implementation principle of a corrosion-resistant and rust-proof oil and a preparation method thereof in the present application is as follows:

[0037] A corrosion-resistant and rust-proof oil, comprising the following components by weight:

[0038] 80-90 parts of base oil, 10-20 parts of rust inhibitor, 1-3 parts of antioxidant.

[0039] The rust remover is a mixture of calcium carbonate and sorbitan monooleate, which can provide a more comprehensive anti-rust effect and enhance the corrosion resistance of the anti-rust oil.

[0040] The weight ratio of calcium sorbitan monooleate and sorbitan monooleate is 1:(1-75).

[0041] The types of base oils are 150N base oil, 150SN base oil and refined kerosene; they are mixed to form a more stable base oil system to enhance the lubricity and adhesion of the rust preventive oil; calcium sulfonate is chemically adsorbed on the metal surface to form a barrier that is not easily penetrated by water and oxygen; sorbitan monooleate utilizes its good spreadability and adhesion on the metal surface to enhance the density and durability of the rust preventive.

[0042] Calcium sulfonate, as an inorganic rust inhibitor, can form a dense protective film on the metal surface, effectively isolating moisture and oxygen to prevent metal corrosion. Sorbitan monooleate, as an organic rust inhibitor, can further enhance the adhesion and stability of the rust inhibitor and improve the rust prevention effect. The two mixed in a certain proportion can play a synergistic role and significantly improve the rust prevention performance

[0043] Further, the mixing weight ratio of 150N base oil, 150SN base oil and refined kerosene is 1:(2-4):(0.5-1.5):(0.05-0.2);

[0044] 150N and 150SN base oils have good lubricity and oxidation resistance, and can provide a stable matrix for rust inhibitors; refined kerosene, due to its low viscosity and good volatility, helps the rust inhibitor to be evenly distributed and quickly dried on the metal surface, forming an effective protective layer. By selecting base oils and optimizing the ratio, the fluidity and permeability of the rust inhibitor are improved, allowing it to better penetrate into the tiny gaps on the metal surface, forming a more comprehensive rust protection.

[0045] The antioxidant is di-tert-butyl-p-cresol. Di-tert-butyl-p-cresol is used; as an antioxidant, it can improve the antioxidant performance of rust-proof oil and extend its service life.

[0046] A method for preparing a corrosion-resistant and rust-proof oil, based on the corrosion-resistant and rust-proof oil of claim 1, characterized in that the method comprises the following steps:

[0047] S1. Put 80-90 parts of base oil into a conical flask, then introduce nitrogen to expel the air, and heat the conical flask in a water bath in an environment filled with nitrogen. Nitrogen is an inert gas that can effectively isolate oxygen and prevent oxidation reactions. Water bath heating uses water as a heat transfer medium to achieve uniform heating and ensure that all components are fully mixed and reacted at a suitable temperature. Expelling air with nitrogen reduces the oxidative effect of oxygen on the anti-rust oil components; water bath heating ensures uniform temperature and avoids component decomposition caused by local overheating.

[0048] S2, add 10-20 parts of rust inhibitor to the conical flask and continue to heat it in a water bath to raise the temperature. At this temperature, add 1-3 parts of phenolic antioxidant to the conical flask and keep it warm, then cool it to room temperature;

[0049] S3, subjecting the mixture obtained in step S2 to ultrasonic dispersion treatment at 200-300W for 10-15min;

[0050] S4, heating the mixture obtained in step S3 in an oil bath, then stopping the heating and cooling directly, keeping warm and stirring for 30 minutes, standing and cooling to room temperature, and then degassing and filtering to obtain a finished product.

[0051] See also Figure 1 In step S1, the water bath needs to be heated to 90°C and heated for 65 to 75 minutes. Controlling the temperature and time of the water bath heating can ensure sufficient heating of the base oil and effective discharge of nitrogen, laying a good foundation for subsequent steps.

[0052] See also Figure 1 In step S2, water bath heating needs to be heated to 90°C and heated for 60-70 minutes; after adding the phenolic antioxidant, the mixture is kept warm for 20 minutes, and then cooled to 40°C at room temperature to ensure that the anti-rust components of the anti-rust oil are fully mixed and reacted, thereby improving its performance.

[0053] See also Figure 1 , the oil bath heating temperature in step S4 needs to be 120-125℃ and last for 10-15min; after heating stops, it needs to be cooled to 70-75℃; it can ensure the stability of the anti-rust oil at high temperature, and further improve its performance through cooling and heat preservation and stirring; oil bath heating further promotes the interaction between the components and solidification film formation. The cavitation effect and micro-jet effect generated by ultrasound can destroy the agglomerates in the liquid and make the components more evenly dispersed; oil bath heating accelerates molecular motion through high temperature, promoting chemical reactions and physical changes.

[0054] The above are all preferred embodiments of the present application, and are not intended to limit the protection scope of the present application.

Claims

1. A corrosion-resistant and rust-proof oil, characterized in that: The following components are included by weight: 80-90 parts of base oil, 10-20 parts of rust inhibitor, 1-3 parts of antioxidant.

2. The corrosion-resistant and rust-proof oil according to claim 1, characterized in that: The rust remover is prepared by mixing calcium carbonate and sorbitan monooleate.

3. The corrosion-resistant and rust-proof oil according to claim 2, characterized in that: The weight ratio of calcium sorbitan monooleate and sorbitan monooleate is 1:(1-75).

4. The corrosion-resistant and rust-proof oil according to claim 1, characterized in that: The base oil is a mixture of 150N base oil, 150SN base oil and refined kerosene.

5. The corrosion-resistant and rust-proof oil according to claim 4, characterized in that: The mixing weight ratio of 150N base oil, 150SN base oil and refined kerosene is 1:(2-4):(0.5-1.5):(0.05-0.2).

6. The corrosion-resistant and rust-proof oil according to claim 1, characterized in that: The antioxidant is di-tert-butyl-p-cresol.

7. A method for preparing a corrosion-resistant and rust-proof oil, based on the corrosion-resistant and rust-proof oil according to claim 1, characterized in that: The method comprises the following steps: S1. Put 80-90 parts of base oil into a conical flask, then introduce nitrogen to expel the air, and heat the conical flask in a water bath while the flask is filled with nitrogen; S2, add 10-20 parts of rust inhibitor to the conical flask and continue to heat it in a water bath to raise the temperature, add 1-3 parts of phenolic antioxidant to the conical flask at this temperature and keep it warm, then cool it to room temperature; S3, subjecting the mixture obtained in step S2 to ultrasonic dispersion treatment at 200-300W for 10-15min; S4. The mixture obtained in step S3 is heated in an oil bath, and then the heating is stopped and the mixture is cooled directly. After being kept warm and stirred for 30 minutes, the mixture is allowed to stand and cool to room temperature, and then the mixture is degassed and filtered to obtain a finished product.

8. The method for preparing corrosion resistant and rust-proof oil according to claim 7, characterized in that: In step S1, the water bath needs to be heated to 90° C. and heated for 65 to 75 minutes.

9. The method for preparing corrosion resistant and rust-proof oil according to claim 7, characterized in that: Step S2: water bath heating needs to be heated to 90° C. and heated for 60-70 min; after adding the phenolic antioxidant, the mixture is kept warm for 20 min, and then cooled to 40° C. at room temperature.

10. The method for preparing corrosion resistant and rust-proof oil according to claim 7, characterized in that: The oil bath heating temperature in step S4 needs to be 120-125°C and last for 10-15 minutes; after heating stops, it needs to be cooled to 70-75°C.

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