A long-lasting rust-proof and high-lubricating easy-to-clean rust-proof oil and its preparation method

Abstract

This invention discloses a long-lasting rust-preventive oil with high lubricity and easy cleaning properties, and its preparation method. The rust-preventive oil comprises the following components: a compounded deeply refined mineral oil, a compounded synthetic oil, a compounded high-efficiency rust inhibitor, a compounded extreme pressure anti-wear agent, a compounded oiliness agent, a compounded antioxidant, a compounded metal passivator, a compounded viscosity index improver, and a compounded easy-to-clean surfactant. Through innovative formula design and preparation process, a novel, high-performance rust-preventive oil product has been developed. This product not only improves the rust protection effect of metal materials and effectively extends their service life, but also solves many problems of traditional rust-preventive oils in terms of rust prevention effect, lubrication durability, and difficulty in cleaning after use.

Description

Technical Field

[0001] This invention belongs to the field of metal material protection technology, specifically relating to a long-lasting rust-preventive oil with high lubricity and easy-to-clean properties, and its preparation method. Background Technology

[0002] Metallic materials, especially steel products, are highly susceptible to corrosion in harsh environments such as humidity and acid / alkali conditions. This not only shortens the material's lifespan but can also lead to a series of safety problems. Therefore, how to effectively prevent metal rust and improve material lifespan and performance has always been a focus of attention in industry and academia. Rust-preventive oil, as one of the important means of metal rust prevention, directly affects the protective effect on metallic materials. While traditional rust-preventive oils can, to some extent, prevent metal from contacting moisture and oxygen, thus inhibiting rust formation, they often suffer from insufficient lubrication, short-lasting rust prevention, and difficulty in cleaning after use. In modern industry, especially in high-end fields such as machinery manufacturing, automobile manufacturing, and aerospace, higher demands are placed on the performance of rust-preventive oils. In addition to basic rust prevention, they also need good lubrication properties to reduce friction and wear on mechanical equipment, improving operating efficiency and lifespan. Simultaneously, with increasingly stringent environmental regulations and heightened environmental awareness, the ease of cleaning rust-preventive oil has also become an important evaluation indicator. Easy-to-clean rust-preventive oils not only reduce energy consumption and chemical reagent use during cleaning, thus lowering environmental pollution, but also improve equipment maintenance efficiency and reduce downtime. However, achieving long-lasting rust prevention, high lubrication performance, and easy cleaning simultaneously requires in-depth research and innovation in rust-preventive oil formulation design and preparation processes. Summary of the Invention

[0003] This invention, through innovative formula design and preparation process, develops a novel, high-performance rust-preventive oil product to meet the high demands of modern industry for rust protection of metal materials. This new rust-preventive oil product not only improves the rust protection effect of metal materials, effectively extends their service life, and reduces material loss due to corrosion, but also lowers equipment maintenance costs and downtime, improving equipment operating efficiency and service life.

[0004] To achieve the above-mentioned objectives, this invention provides a long-lasting rust-preventive oil with high lubricity and easy-to-clean properties. The rust-preventive oil comprises the following components in parts by weight: 50-70 parts of compounded deeply refined mineral oil, 15-25 parts of compounded synthetic oil, 8-12 parts of compounded high-efficiency rust inhibitor, 4-6 parts of compounded extreme pressure anti-wear agent, 1-4 parts of compounded oiliness agent, 0.5-5 parts of compounded antioxidant, 0.5-3 parts of compounded metal passivator, 0.5-3 parts of compounded viscosity index improver, and 0.5-3 parts of compounded easy-to-clean surfactant.

[0005] In the above technical solution, the compounded deep refined mineral oil is further prepared by mixing light mineral oil and medium mineral oil in a weight ratio of (6-7):3, and the compounded deep refined mineral oil serves as the base oil component.

[0006] The compound synthetic oil is prepared by mixing polyalphaolefin synthetic oil, ester synthetic oil and polyether synthetic oil in a weight ratio of (2-3):2:1. This compound synthetic oil enables the lubricant to have excellent low-temperature fluidity, high-temperature stability and antioxidant properties.

[0007] The compound high-efficiency rust inhibitor is prepared by mixing barium petroleum sulfonate, dodecenyl succinic acid, and calcium sulfonate in a weight ratio of (1-2):2:1. This compound rust inhibitor will provide long-term and effective rust prevention for metal surfaces.

[0008] The compound extreme pressure anti-wear agent is prepared by mixing sulfide isobutylene, chlorinated paraffin and tricresyl phosphate in a weight ratio of (2-3):2:1. This compound extreme pressure anti-wear agent will significantly improve the extreme pressure performance and anti-wear performance of the lubricant.

[0009] The compound oiling agent is prepared by mixing rapeseed oil and stearic acid in a weight ratio of (3-4):1. This compound oiling agent will ensure that the lubricant has good adhesion and long-lasting lubrication effect on the metal surface.

[0010] Furthermore, the compound antioxidant is prepared by mixing 2,6-di-tert-butyl-p-cresol, N-phenyl-α-naphthylamine, and phenothiazine in a weight ratio of (1-2):2:1. This compound antioxidant is a key component in protecting the lubricant from oxidative degradation.

[0011] The compound metal passivating agent is prepared by mixing sodium benzoate, benzotriazole, and mercaptobenzothiazole in a weight ratio of (1-2):2:1. This compound metal passivating agent can form a protective film on the metal surface, isolating the metal from direct contact with the external environment, thereby effectively preventing metal oxidation. This protective film is dense, fine, and uniform, and is not easy to fall off, and can protect the metal surface from the corrosion of oxygen, water, and chemicals for a long time.

[0012] Furthermore, the compound viscosity index improver is prepared by mixing polymethyl methacrylate and polyisobutylene in a weight ratio of (6-7):3, which will ensure that the lubricant has stable viscosity performance under different temperature conditions.

[0013] The compound easy-to-clean surfactant is prepared by mixing fatty alcohol polyoxyethylene ether, sodium alkylbenzene sulfonate and alkylphenol polyoxyethylene ether in a weight ratio of (2-3):2:1. This compound cleaning surfactant enhances the cleanability and compatibility of the lubricant.

[0014] A method for preparing the above-mentioned long-lasting rust-preventive oil with high lubricity and easy-to-clean properties, the method comprising the following steps:

[0015] ① Add light mineral oil and medium mineral oil to the reactor in proportion, set the reactor temperature to 65℃~85℃, the stirring speed to 300~500 rpm, and continue stirring for 30~45 minutes to obtain compounded deep refined mineral oil.

[0016] ② The poly-α-olefin synthetic oil, ester synthetic oil and polyether synthetic oil are compounded in proportion to obtain a compound synthetic oil. The compound synthetic oil is added to a reaction vessel. The temperature of the reaction vessel is 70℃~85℃, the stirring speed is 400~600 rpm, and the stirring is continued for 90~120 minutes.

[0017] ③ A compound high-efficiency rust inhibitor is obtained by compounding barium petroleum sulfonate, dodecenyl succinic acid and calcium sulfonate in a certain proportion. The compound high-efficiency rust inhibitor is added to a reaction vessel. The reaction vessel temperature is 75℃~85℃, the stirring speed is 500~600 rpm, and the stirring time is 60~90 minutes.

[0018] ④ A compound extreme pressure anti-wear agent is prepared by compounding isobutylene sulfide, chlorinated paraffin and tricresyl phosphate in a certain proportion. The compound extreme pressure anti-wear agent is added to the reaction vessel, the reaction vessel temperature is maintained at 80℃~85℃, the stirring speed is 600~800 rpm, and the stirring time is 90~120 minutes.

[0019] ⑤ A compound oily agent is obtained by compounding rapeseed oil and stearic acid in a certain proportion. The compound oily agent is added to the reaction vessel, the temperature of the reaction vessel is maintained at 75℃~80℃, the stirring speed is 600~800 rpm, and the stirring time is 30~45 minutes.

[0020] ⑥ The compound antioxidant, compound metal passivator, compound viscosity index improver, and compound easy-to-clean surfactant are compounded in proportion and then added to the reaction vessel in sequence. The reaction vessel temperature is 80℃~85℃, the stirring speed is 800~1000 rpm, and the stirring time is 90~120 minutes to obtain a long-lasting rust-preventive oil with high lubrication performance and easy-to-clean properties.

[0021] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0022] This invention, through innovative formulation design and preparation process, develops a novel, high-performance rust-preventive oil product to meet the high demands of modern industry for rust protection of metal materials. This new rust-preventive oil product not only improves the rust protection effect of metal materials and effectively extends their service life, but also reduces material loss caused by corrosion. This technical solution benefits environmental protection and sustainable development, aligns with the modern industrial requirements for environmental protection and energy conservation, and will have broad application prospects and enormous market potential in the industrial field. Detailed Implementation

[0023] The present invention will be further described below with reference to specific embodiments, but this does not limit the invention in any way. To avoid redundancy, unless otherwise specified, the raw materials used in the following embodiments are all commercially available products, and the methods used are all conventional methods unless otherwise specified.

[0024] A long-lasting rust-preventing and highly lubricating rust-preventing oil that is easy to clean, comprising the following components in parts by weight: 50-70 parts of compounded deeply refined mineral oil, 15-25 parts of compounded synthetic oil, 8-12 parts of compounded high-efficiency rust inhibitor, 4-6 parts of compounded extreme pressure anti-wear agent, 1-4 parts of compounded oiliness agent, 0.5-5 parts of compounded antioxidant, 0.5-3 parts of compounded metal passivator, 0.5-3 parts of compounded viscosity index improver, and 0.5-3 parts of compounded easy-to-clean surfactant.

[0025] A method for preparing the above-mentioned long-lasting rust-preventive oil with high lubricity and easy-to-clean properties, the method comprising the following steps:

[0026] ① Add light mineral oil and medium mineral oil to the reactor in proportion, set the reactor temperature to 65℃~85℃, the stirring speed to 300~500 rpm, and continue stirring for 30~45 minutes to obtain compounded deep refined mineral oil;

[0027] ② The poly-α-olefin synthetic oil, ester synthetic oil and polyether synthetic oil are compounded in proportion to obtain a compound synthetic oil. The compound synthetic oil is added to a reaction vessel. The reaction vessel temperature is 70℃~85℃, the stirring speed is 400~600 rpm, and the stirring is continued for 90~120 minutes.

[0028] ③ A compound high-efficiency rust inhibitor is obtained by compounding barium petroleum sulfonate, dodecenyl succinic acid and calcium sulfonate in a certain proportion. The compound high-efficiency rust inhibitor is added to a reaction vessel. The reaction vessel temperature is 75℃~85℃, the stirring speed is 500~600 rpm, and the stirring time is 60~90 minutes.

[0029] ④ The compound extreme pressure anti-wear agent is prepared by compounding isobutylene sulfide, chlorinated paraffin and tricresyl phosphate in a certain proportion. The compound extreme pressure anti-wear agent is added to the reaction vessel, the reaction vessel temperature is maintained at 80℃~85℃, the stirring speed is 600~800 rpm, and the stirring time is 90~120 minutes.

[0030] ⑤ A compound oily agent is obtained by compounding rapeseed oil and stearic acid in a certain proportion. The compound oily agent is added to the reaction vessel, the temperature of the reaction vessel is maintained at 75℃~80℃, the stirring speed is 600~800 rpm, and the stirring is carried out for 30~45 minutes.

[0031] ⑥ The compound antioxidant, compound metal passivator, compound viscosity index improver, and compound easy-to-clean surfactant are compounded in proportion and then added to the reaction vessel in sequence. The reaction vessel temperature is 80℃~85℃, the stirring speed is 800~1000 rpm, and the stirring time is 90~120 minutes to obtain a long-lasting rust-preventive oil with high lubrication performance and easy-to-clean properties.

[0032] Any aspects not described in the following embodiments are the same as those described in the specific embodiments above.

[0033] Example

[0034] A long-lasting rust-preventing oil with high lubrication performance and easy cleaning is described in Table 1. The components and their mass content of the rust-preventing oils in Examples 1-10 are shown in Table 1.

[0035] Table 1. Components and proportions of long-lasting rust-preventive and highly lubricating rust-preventive oils for Examples 1-10

[0036]

[0037] A method for preparing a long-lasting rust-preventive oil with high lubricity and easy-to-clean properties, the specific process steps are as follows:

[0038] ① Add light mineral oil and medium mineral oil to the reactor at a weight ratio of 7:3. Set the reactor temperature to 85℃ and the stirring speed to 500 rpm. Stir continuously for 45 minutes to obtain a compounded deep refined mineral oil.

[0039] ② A compound synthetic oil is obtained by blending polyα-olefin synthetic oil, ester synthetic oil and polyether synthetic oil in a weight ratio of 3:2:1. The compound synthetic oil is added to a reaction vessel at a temperature of 85°C and a stirring speed of 600 rpm for 120 minutes.

[0040] ③ A compound high-efficiency rust inhibitor is obtained by compounding barium petroleum sulfonate, dodecenyl succinic acid and calcium sulfonate in a certain proportion. The compound high-efficiency rust inhibitor is added to a reaction vessel, the reaction vessel temperature is 85℃, the stirring speed is 600 rpm, and the stirring time is 90 minutes.

[0041] The compound high-efficiency rust inhibitor is prepared by mixing barium petroleum sulfonate, dodecenyl succinic acid, and calcium sulfonate in a weight ratio of 2:2:1 and stirring at a stirring speed of 600 rpm for 90 minutes.

[0042] ④ A compound extreme pressure anti-wear agent is prepared by compounding isobutylene sulfide, chlorinated paraffin and tricresyl phosphate in a certain proportion. The compound extreme pressure anti-wear agent is added to the reaction vessel, the reaction vessel temperature is maintained at 85°C, the stirring speed is 800 rpm, and the stirring is carried out for 120 minutes.

[0043] The compound extreme pressure anti-wear agent is prepared by mixing sulfurized isobutylene, chlorinated paraffin and tricresyl phosphate in a weight ratio of 3:2:1 and stirring at a stirring speed of 400 rpm for 20 minutes.

[0044] ⑤ A compound oily agent is obtained by compounding rapeseed oil and stearic acid in a certain proportion. The compound oily agent is added to the reaction vessel, the temperature of the reaction vessel is kept at 80°C, the stirring speed is 800 rpm, and the stirring is carried out for 45 minutes.

[0045] The compound oiliness agent is prepared by mixing rapeseed oil and stearic acid at a weight ratio of 4:1 and stirring at a stirring speed of 300 rpm for 20 minutes.

[0046] ⑥ The compound antioxidant, compound metal passivator, compound viscosity index improver, and compound easy-to-clean surfactant are compounded in proportion and then added to the reaction vessel in sequence. The reaction vessel temperature is 85℃, the stirring speed is 1000 rpm, and the stirring time is 120 minutes to obtain a long-lasting rust-preventive oil with high lubrication performance and easy-to-clean properties.

[0047] The compound antioxidant was prepared by mixing 2,6-di-tert-butyl-p-cresol, N-phenyl-α-naphthylamine, and phenothiazine in a weight ratio of 2:2:1 and stirring at 400 rpm for 20 minutes.

[0048] The compound metal passivating agent is prepared by mixing sodium benzoate, benzotriazole and mercaptobenzothiazole in a weight ratio of 2:2:1 and stirring at 300 rpm for 30 minutes.

[0049] The compound viscosity index improver is prepared by mixing polymethyl methacrylate and polyisobutylene in a weight ratio of 7:3 and stirring at a stirring speed of 400 rpm for 15 minutes.

[0050] The compounded easy-to-clean surfactant is prepared by mixing fatty alcohol polyoxyethylene ether, sodium alkylbenzene sulfonate, and alkylphenol polyoxyethylene ether in a weight ratio of 3:2:1 and stirring at 300 rpm for 20 minutes.

[0051] A long-lasting rust-preventing oil with high lubricity and easy cleaning properties was prepared according to the above process. Test pieces were immersed in the long-lasting rust-preventing oil with high lubricity and easy cleaning properties prepared in Examples 1-10. After the test pieces were removed, the rust-preventing performance was tested according to SHT0533 "Rust-preventing oil rust-preventing test piece rust corrosion evaluation method". The technical implementation effect of the products prepared in Examples 1-10 is shown in Table 2.

[0052] Table 2. Technical Effects of the Products Obtained in Examples 1-10

[0053]

[0054] As can be seen from the results of the embodiments in Table 2, this long-lasting rust-preventive oil with high lubricity and easy-to-clean properties can improve the rust protection effect of metal materials, effectively extend the service life of metal materials, and reduce material losses caused by rust, which has important significance for industry promotion.

[0055] For anyone skilled in the art, many possible variations and modifications can be made to the technical solutions of this invention, or equivalent embodiments can be modified based on the disclosed technical content, without departing from the scope of the technical solutions of this invention. Therefore, any simple modifications, equivalent changes, and modifications made to the above embodiments based on the technical essence of this invention without departing from the content of the technical solutions of this invention should still fall within the protection scope of the technical solutions of this invention.

Claims

1. A long-lasting rust-preventive oil with high lubrication and easy-to-clean properties, characterized in that, The rust-preventive oil comprises the following components in parts by weight: 50-70 parts of compounded deep refined mineral oil, 15-25 parts of compounded synthetic oil, 8-12 parts of compounded high-efficiency rust inhibitor, 4-6 parts of compounded extreme pressure anti-wear agent, 1-4 parts of compounded oiliness agent, 0.5-5 parts of compounded antioxidant, 0.5-3 parts of compounded metal passivator, 0.5-3 parts of compounded viscosity index improver, and 0.5-3 parts of compounded easy-to-clean surfactant; The compounded deep refined mineral oil is prepared by mixing light mineral oil and medium mineral oil in a weight ratio of (6~7):3; The compound synthetic oil is prepared by mixing poly-α-olefin synthetic oil, ester synthetic oil and polyether synthetic oil in a weight ratio of (2~3):2:1; The compound high-efficiency rust inhibitor is prepared by mixing barium petroleum sulfonate, dodecenyl succinic acid, and calcium sulfonate in a weight ratio of (1~2):2:1; the compound extreme pressure anti-wear agent is prepared by mixing isobutylene sulfide, chlorinated paraffin, and tricresyl phosphate in a weight ratio of (2~3):2:

1. The compound oil-based agent is prepared by mixing rapeseed oil and stearic acid in a weight ratio of (3~4):1; the compound antioxidant is prepared by mixing 2,6-di-tert-butyl-p-cresol, N-phenyl-α-naphthylamine, and phenothiazine in a weight ratio of (1~2):2:

1. The compound metal passivating agent is prepared by mixing sodium benzoate, benzotriazole, and mercaptobenzothiazole in a weight ratio of (1~2):2:1; The compound viscosity index improver is prepared by mixing polymethyl methacrylate and polyisobutylene in a weight ratio of (6~7):3; The compounded easy-to-clean surfactant is prepared by mixing fatty alcohol polyoxyethylene ether, sodium alkylbenzene sulfonate, and alkylphenol polyoxyethylene ether in a weight ratio of (2~3):2:

1.

2. A method for preparing the long-lasting rust-preventive oil with high lubricity and easy-to-clean properties as described in claim 1, characterized in that, The preparation method includes the following steps: 1) Add light mineral oil and medium mineral oil to the reactor in proportion, set the reactor temperature to 65℃~85℃, the stirring speed to 300~500 rpm, and continue stirring for 30~45 minutes to obtain compounded deep refined mineral oil; 2) Poly-α-olefin synthetic oil, ester synthetic oil and polyether synthetic oil are compounded in proportion to obtain compound synthetic oil. The compound synthetic oil is added to the reaction vessel in step 1). The reaction vessel temperature is 70℃~85℃, the stirring speed is 400~600 rpm, and the stirring is continued for 90~120 minutes. 3) Barium petroleum sulfonate, dodecenyl succinic acid, and calcium sulfonate are compounded in proportion to obtain a compound high-efficiency rust inhibitor. The compound high-efficiency rust inhibitor is added to the reaction vessel in step 2). The reaction vessel temperature is 75℃~85℃, the stirring speed is 500~600 rpm, and the stirring time is 60~90 minutes. 4) The compound extreme pressure anti-wear agent is prepared by compounding isobutylene sulfide, chlorinated paraffin and tricresyl phosphate in a certain proportion. The compound extreme pressure anti-wear agent is added to the reaction vessel in step 3), and the reaction vessel temperature is maintained at 80℃~85℃, the stirring speed is 600~800 rpm, and the stirring time is 90~120 minutes. 5) Combine rapeseed oil and stearic acid in a certain proportion to obtain a compound oiliness agent. Add the compound oiliness agent to the reaction vessel in step 4), maintain the reaction vessel temperature at 75℃~80℃, stir at 600~800 rpm for 30~45 minutes. 6) The compound antioxidant, compound metal passivator, compound viscosity index improver, and compound easy-to-clean surfactant are compounded in proportion and then added to the reaction vessel in step 5). The reaction vessel temperature is 80℃~85℃, the stirring speed is 800~1000 rpm, and the stirring time is 90~120 minutes to obtain a long-lasting rust-preventive oil with high lubrication performance and easy-to-clean properties.

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