CN112063437B

CN112063437B - Long-acting antirust oil capable of realizing rapid water replacement and preparation method thereof

Info

Publication number: CN112063437B
Application number: CN202010859820.1A
Authority: CN
Inventors: 付强; 陈安; 王玉玲
Original assignee: Shanghai Thriving Special Oil Science & Technology Co ltd
Current assignee: Shanghai Thriving Special Oil Science & Technology Co ltd
Priority date: 2020-08-24
Filing date: 2020-08-24
Publication date: 2022-03-29
Anticipated expiration: 2040-08-24
Also published as: CN112063437A

Abstract

The application relates to a quick water replacement long-acting antirust oil and a preparation method thereof, wherein the quick water replacement long-acting antirust oil is prepared by mixing the following components in percentage by weight: 20-25% of base oil, 5-10% of oil-soluble film forming agent, 10-15% of corrosion inhibitor, 8-15% of non-reactive polyamide resin, 1-3% of nonionic surfactant, 0.5-1% of antioxidant and the balance of diluent; the method has the advantages that both quick dehydration and long-term rust prevention can be achieved; a preparation method of a quick water replacement long-acting antirust oil comprises the following steps: m1: weighing the components in proportion, mixing the base oil, the non-reactive polyamide resin, the oil-soluble film forming agent, the corrosion inhibitor, the nonionic surfactant and the antioxidant, heating to 70-110 ℃, and stirring for dissolving and uniformly mixing; then naturally cooling to 50-60 ℃, adding the diluent while stirring until the mixture is uniformly stirred.

Description

Long-acting antirust oil capable of realizing rapid water replacement and preparation method thereof

Technical Field

The application relates to the field of metal surface dehydration and rust prevention, in particular to a long-acting antirust oil for rapid water replacement and a preparation method thereof.

Background

Metal is the most important structural material in modern mechanical industry, defense industry, petroleum industry and other industries, but is easily deteriorated or damaged by chemical and electrochemical actions of external environment or medium, which is commonly called metal corrosion. In order to avoid corrosion and reduce loss, various methods are used for protecting metals, and for example, the protection of metal products by using rust-proof grease is one of the most common protection methods at present.

In order to effectively ensure the rust-proof effect of the rust-proof oil, the requirement of using the rust-proof oil is to ensure that parts are clean and dry before being oiled. In recent years, demands for cleanliness before packaging of parts have been increasing. In order to ensure the cleanliness of parts, various methods are adopted to treat the parts, and the most conventional method at present is to clean the parts by using a water-based cleaning agent, remove oil stains and impurities on the surfaces of the parts as clean as possible, and dip-coat the parts with anti-rust oil after drying. But limited by actual production rhythm, part materials, part structures and the like, the parts can not be completely dried and still can remain partial moisture. The residual moisture puts higher requirements on the antirust oil, the existing antirust oil usually comprises base oil, a film forming agent, a corrosion inhibitor and a diluent, the corrosion inhibitor has certain water replacement property, but part of water on the metal surface is difficult to replace completely, the existing antirust oil cannot effectively take both dehydration and antirust effects into consideration, so that parts are rusted in the antirust effective period after being packaged, and huge economic loss is brought to customers.

In view of the above-mentioned related art, the inventors consider that there is a drawback that both rapid dehydration and long-term rust prevention cannot be achieved.

Disclosure of Invention

The application provides a quick water replacement long-acting antirust oil and a preparation method thereof, which can achieve the effects of quick dehydration and long-term rust prevention, can complete dehydration and rust prevention in one step, and achieves the effect of long-term storage and rust prevention.

In a first aspect, the application provides a rapid water replacement long-acting antirust oil, which adopts the following technical scheme:

the quick water replacement long-acting antirust oil is prepared by mixing the following components in percentage by weight: 20-25% of base oil, 5-10% of oil-soluble film forming agent, 10-15% of corrosion inhibitor, 8-15% of non-reactive polyamide resin, 1-3% of nonionic surfactant, 0.5-1% of antioxidant and the balance of diluent.

By adopting the technical scheme, the base oil mainly plays a role of a carrier and an oil effect, after various functional additives are fully dissolved and dispersed in the oil, a better antirust effect can be displayed, and meanwhile, the base oil can be physically adsorbed on a metal surface with less polar molecule adsorption, and can penetrate into corrosion inhibitor molecules with directional adsorption to act together with a corrosion inhibitor, so that an adsorption film on the metal surface is more complete and compact.

The corrosion inhibitor is an organic compound with polar groups and longer hydrocarbon chains, and consists of two asymmetric polar parts and non-polar parts. The polar group can form directional adsorption on the metal surface under the action of chemical bonds, so that the activity of the active center of the metal surface is reduced, the adsorption of water molecules and oxygen molecules is blocked, and the corrosion process is slowed down; the non-polar part can form a layer of hydrophobic protective film on the surface of the metal to block the movement of related charges or substances participating in corrosion reaction, thereby reducing the probability and the speed of corrosion. Meanwhile, when the molecular polarity of the corrosion inhibitor is stronger than the polarity of water molecules and the affinity with metal is higher than that of water, the water film on the surface of the metal can be replaced, so that the corrosion speed of the metal is slowed down;

the non-reactive polyamide resin has no volatility, better low-temperature frost resistance and fluidity, better corrosion resistance, and further enhanced film forming property, rust resistance and salt spray resistance of the rust preventive oil; the non-reactive polyamide resin contains amide groups and is easy to absorb water, so that the non-reactive polyamide resin is compounded with the nonionic surfactant, water on the surface of the metal can enter an oil film more quickly, the replacement speed of the water is improved, and meanwhile, the non-reactive polyamide resin has certain viscosity, so that the stability of the oil film is improved, the stability of the water in the middle of the oil film is improved, and the water is further difficult to migrate to the surface of the metal;

the film forming agent can form an isolation protective film on the metal surface, so that the invasion of water, oxygen molecules and other harmful substances to the metal surface is reduced, and the oil film strength is enhanced, so that the rust preventive oil is prevented from being washed away by condensed dew in salt spray and damp-heat environments and being lost;

the nonionic surfactant has good emulsifying and solubilizing properties, can emulsify water on the surface of the metal, increases the water-dissolving property of the antirust oil, and can enable the water on the surface of the metal to be rolled off, separated or replaced by the corrosion inhibitor more quickly due to the good wetting and permeability and the composite action of the corrosion inhibitor, thereby indirectly improving the dehydration property of the antirust oil;

the antioxidant can delay the aging of the anti-rust oil and prolong the service life of the anti-rust oil;

the diluent is mainly used for diluting the anti-rust oil and adjusting the viscosity of the anti-rust oil so as to facilitate the use of the anti-rust oil;

in conclusion, the antirust oil can take quick dehydration and long-term rust prevention into consideration through the proportion of the components, so that dehydration and rust prevention can be completed in one step, the antirust effect of long-term storage is achieved, the antirust oil can be assembled with oil, and the antirust oil is low in odor and good in compatibility.

Preferably, the non-reactive polyamide resin is synthesized by the following steps: uniformly mixing the dimer acid methyl ester, the N-oleoyl sarcosine octadecylamine salt and the base oil in a weight ratio of 2:1:1, and reacting for 1.0-2.0 hours at the temperature of 80-90 ℃.

By adopting the technical scheme, the base oil is used as a solvent, the dimer acid methyl ester and the N-oleoyl sarcosine octadecylamine salt are completely reacted to obtain a non-reactive polyamide resin mixture, the pre-reaction is set to obtain the non-reactive polyamide resin containing a certain amount of base oil, and the base oil contained in the non-reactive polyamide resin can ensure that the non-reactive polyamide resin can be uniformly dissolved.

Preferably, the oil-soluble film forming agent is one or more of oxidized paraffin, oxidized butyl paraffin and lanolin.

By adopting the technical scheme, the oxidized paraffin is an oxidation product obtained by oxidizing paraffin or slack wax serving as a raw material by pure oxygen or air under the condition of a certain catalyst, and the structure of the oxidized paraffin has functional groups such as ester, ether and the like, so that the oxidized paraffin has good flexibility, and a formed film is not easy to crack at low temperature;

lanolin is a kind of secreted oil attached to wool, and is in the form of yellowish or brownish yellow ointment; the antirust oil is sticky and greasy, can prevent water from penetrating through an oil film, and has better salt mist resistance, damp heat resistance and strong acid resistance, thereby being beneficial to increasing the antirust performance of the antirust oil.

Preferably, the oil-soluble film forming agent comprises the following components in a weight ratio of 1: (1-1.5): (0.67-2) oxidized paraffin, oxidized paraffin butyl ester, and lanolin.

By adopting the technical scheme, the three film forming agents are compounded with each other, so that the oil film formed by the anti-rust oil has better performances such as flexibility, salt mist resistance, damp heat resistance and the like, and the anti-rust oil has better anti-rust performance,

preferably, the corrosion inhibitor is one or more of calcium dinonylnaphthalenesulfonate, lanolin soap, heptadecenyl imidazolinyl alkenyl succinate, benzotriazole and benzotriazole derivatives.

By adopting the technical scheme, the calcium dinonylnaphthalenesulfonate has good emulsification resistance and rust resistance;

the lanolin soap has excellent high and low temperature performance and good antirust performance, and has better compound synergistic effect with calcium dinonylnaphthalenesulfonate, benzotriazole and benzotriazole derivatives; and the lanolin calcium soap is beneficial to enhancing the water replaceability of the anti-rust oil.

The heptadecenyl imidazoline alkenyl succinate has good acid neutralization performance, good acid neutralization and oil solubility, can form a protective film on the surface of metal, has good antirust capacity on ferrous metal, nonferrous metal such as copper, aluminum and alloy thereof, various coatings and has a dissolving-assisting effect on other antirust agents;

benzotriazole and benzotriazole derivatives can form covalent bonds and coordination bonds with copper, cast iron, zinc, lead and the like, and further polymerize on the metal surface to form a protective film, so that the corrosion process of the metal is prevented;

through the mutual compounding of the corrosion inhibitors, the dehydration property and the water replacement rate of the antirust oil can be improved, and the antirust performance is effectively ensured.

Preferably, the corrosion inhibitor comprises the following components in a weight ratio of 1: (0.15-0.83): (0.15-0.83): (0.05-0.083) calcium dinonylnaphthalenesulfonate, calcium lanolin soap, heptadecenyl imidazolinyl succinate, benzotriazole or benzotriazole derivatives.

By adopting the technical scheme, the complex formulation of the corrosion inhibitor in the proportion further improves the dehydration property of the antirust oil on the metal surface and the water replacement rate, thereby improving the antirust property of the antirust oil.

Preferably, the nonionic surfactant is any one or more of fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylate and diethylene glycol monobutyl ether.

Preferably, the nonionic surfactant comprises diethylene glycol monobutyl ether, fatty alcohol polyoxyethylene ether and alkylphenol polyoxyethylene ether in a weight ratio of 1 (0-5) to (0-5).

By adopting the technical scheme, ether bonds in fatty alcohol-polyoxyethylene ether molecules are not easily damaged by acid and alkali, so that the stability is higher, the water solubility is better, the electrolyte resistance is realized, and the compatibility with other surfactants is good;

the diethylene glycol monobutyl ether has a good dissolving effect on oil dirt and a certain dehydration effect, and is compounded with the fatty alcohol-polyoxyethylene ether and the alkylphenol polyoxyethylene ether, so that the water replacement speed of the anti-rust oil is further improved;

the alkylphenol ethoxylates has good wettability, emulsibility and permeability, so that the antirust oil can well cover and adhere to the metal surface, water on the metal surface can be quickly emulsified and dispersed in the middle of an oil film, and the antirust oil is wrapped by a corrosion inhibitor and a nonionic surfactant, so that the water replacement speed is greatly improved;

through compounding of the three nonionic surfactants, the antirust oil has better wetting, emulsifying and dispersing properties and good low-temperature water replacement property.

Preferably, the antioxidant is 2, 6-di-tert-butyl-p-methylphenol.

In a second aspect, the application provides a preparation method of a rapid water replacement long-acting antirust oil, which adopts the following technical scheme:

a preparation method of a quick water replacement long-acting antirust oil comprises the following steps:

m1: weighing the components in proportion, mixing the base oil, the non-reactive polyamide resin, the oil-soluble film forming agent, the corrosion inhibitor, the nonionic surfactant and the antioxidant, heating to 70-110 ℃, and stirring for dissolving and uniformly mixing;

m2: and naturally cooling the product obtained from M1 to 50-60 ℃, and adding the diluent while stirring until the mixture is uniformly stirred.

Preferably, the preparation method of the quick water replacement long-acting antirust oil comprises the following steps:

s1: weighing the components in proportion, mixing 40-50wt% of base oil, lanolin calcium soap and dinonyl calcium naphthalene sulfonate, heating to 95-110 ℃, stirring for 0.5-1.5 hours, dissolving and uniformly mixing to obtain a first mixture;

s2: adding the rest base oil into the first mixture, cooling to 80-90 ℃, then adding the non-reactive polyamide resin mixture, the nonionic surfactant and the film forming agent while stirring, and uniformly stirring to obtain a second mixture;

s3: naturally cooling the second mixture to 70-80 ℃, adding heptadecenyl imidazoline alkenyl succinate, an antioxidant, benzotriazole or a benzotriazole derivative while stirring until the mixture is uniformly stirred;

s4: and (4) naturally cooling the product obtained in the step (S3) to 50-60 ℃, adding a diluent, and uniformly stirring.

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

1. the compounding of the non-reactive polyamide resin and the nonionic surfactant is beneficial to enabling water on the surface of the metal to enter an oil film more quickly, the replacement speed of the water is improved, meanwhile, the non-reactive polyamide resin has certain viscosity, and the stability of the oil film is improved, so that the stability of the water in the middle of the oil film is improved, the water is further prevented from migrating to the surface of the metal, the non-reactive polyamide resin is non-volatile, has good low-temperature frost resistance and fluidity, has good corrosion resistance, and further enhances the film forming property, the rust resistance and the salt spray resistance of the anti-rust oil;

2. the nonionic surfactant has good emulsifying property, so that the nonionic surfactant can emulsify water on the surface of metal, the water-dissolving property of the antirust oil is improved, the water can be replaced by the corrosion inhibitor more quickly, and the nonionic surfactant and the corrosion inhibitor are compounded, so that the dehydration property of the antirust oil is indirectly improved;

3. the synthesis step of the non-reactive polyamide resin enables pre-reaction, and the content of the base oil in the non-reactive polyamide resin mixture is convenient to calculate and detect, so that the process setting is convenient.

Detailed Description

The present application is described in further detail in conjunction with the following.

Dimer acid methyl ester, manufactured by Zhejiang Yong ink Co., Ltd;

n-oleoyl sarcosine octadecylamine salt, manufactured by Ninghai Tian Cheng chemical company of Zhejiang;

oxidized paraffin, manufactured by Konai Europe trade (Shanghai) Co., Ltd;

oxidized butyl Paraffin, manufactured by Konai Europe trade (Shanghai) Co., Ltd;

lanolin soap is selected from lanolin calcium soap, and the manufacturer is Shanghai wool trade company;

lanolin, the manufacturer is Shanghai wool trade company;

calcium dinonylnaphthalenesulfonate, model T705C, produced by Enteromorpha villa related chemical additive plant of Suzhou city;

heptadecenyl imidazolinyl alkenyl succinate, model T703, manufactured by shanghai midgarde chemical ltd;

benzotriazole, also known as Benzotriazole (BTA), model T706, is produced by Tianyu Petroleum additive plant in Danyang;

the benzotriazole derivative is T406, and is produced by Tianyu petroleum additive plant of Danyang.

Fatty alcohol polyoxyethylene ether, model AEO3, manufactured by Shanghai Temple auxiliary agent company Limited;

diethylene glycol monobutyl ether, manufactured by Dow;

alkylphenol polyoxyethylene ether with the model of OP-4 is manufactured by Shanghai Temple auxiliary company Limited;

the diluent is synthesized alkane and n-dodecane, and the manufacturer is Nanjing products high oil products Co.

Example 1

23kg of base oil, 10kg of oil-soluble film-forming agent, 15kg of corrosion inhibitor, 1kg of nonionic surfactant, 0.5kg of antioxidant and 8kg of non-reactive polyamide resin are mixed, heated to 95 ℃, stirred, dissolved and mixed uniformly, naturally cooled to 50 ℃, and added with 42.5kg of diluent while stirred until the mixture is uniformly stirred.

The non-reactive polyamide resin is synthesized in advance through the following steps: the weight ratio is 2:1:1, uniformly mixing the dimer acid methyl ester, the N-oleoyl sarcosine octadecylamine salt and the base oil, and reacting for 2 hours at the temperature of 80 ℃ to obtain a non-reactive polyamide resin mixture.

Wherein, the oil-soluble film forming agent comprises 4: 3:3 oxidized paraffin, oxidized paraffin butyl ester and lanolin.

The corrosion inhibitor comprises 10kg of dinonyl naphthalene sulfonic acid calcium, 3kg of lanolin calcium soap, 1.5kg of heptadecenyl imidazolinyl alkenyl succinate and 0.5kg of benzotriazole.

Nonionic surfactant fatty alcohol polyoxyethylene ether

Example 2

A long-acting antirust oil capable of being quickly replaced by water is prepared by mixing 20kg of base oil, 8kg of oil-soluble film-forming agent, 12kg of corrosion inhibitor, 3kg of nonionic surfactant, 0.5kg of antioxidant and 12kg of non-reactive polyamide resin, heating to 102 ℃, stirring, dissolving, uniformly mixing, naturally cooling to 55 ℃, adding 44.5kg of diluent while stirring until the mixture is uniformly stirred.

The non-reactive polyamide resin is synthesized by the following steps: uniformly mixing dimer acid methyl ester, N-oleoyl sarcosine octadecylamine salt and base oil in a weight ratio of 2:1:1, and reacting at 85 ℃ for 1.5 hours to obtain a non-reactive polyamide resin mixture.

Wherein the oil-soluble film forming agent comprises oxidized paraffin and oxidized butyl paraffin in a weight ratio of 1: 1.

The corrosion inhibitor comprises 11:1 parts by weight of calcium dinonylnaphthalenesulfonate and heptadecenyl imidazolinyl alkenyl succinate.

The nonionic surfactant comprises fatty alcohol-polyoxyethylene ether, diethylene glycol monobutyl ether and alkylphenol polyoxyethylene ether in a weight ratio of 1:1: 1.

Example 3

A quick water replacement long-acting antirust oil is prepared by mixing 25kg of base oil, 5kg of oil-soluble film forming agent, 10kg of corrosion inhibitor, 2kg of nonionic surfactant, 1kg of antioxidant and 15kg of non-reactive polyamide resin, heating to 110 ℃, stirring, dissolving, uniformly mixing, naturally cooling to 60 ℃, adding 41kg of diluent while stirring until the mixture is uniformly stirred.

The non-reactive polyamide resin is synthesized by the following steps: uniformly mixing dimer acid methyl ester, N-oleoyl sarcosine octadecylamine salt and base oil in a weight ratio of 2:1:1, and reacting at 90 ℃ for 1 hour to obtain a non-reactive polyamide resin mixture.

Wherein the oil-soluble film forming agent is oxidized paraffin.

The corrosion inhibitor is calcium dinonyl naphthalene sulfonate.

The nonionic surfactant is diethylene glycol monobutyl ether.

Example 4

The difference from example 2 is that:

the oil-soluble film forming agent comprises the following components in percentage by weight of 1:1: 2 oxidized paraffin, oxidized butyl paraffin and lanolin.

Example 5

The difference from example 2 is that:

the oil-soluble film forming agent comprises oxidized paraffin, butyl oxidized paraffin and lanolin with the weight ratio of 3:4: 2.

Example 6

The difference from example 2 is that:

the oil-soluble film forming agent comprises oxidized paraffin, butyl oxidized paraffin and lanolin in a weight ratio of 2:3: 3.

Example 7

The difference from example 5 is that:

the corrosion inhibitor comprises the following components in percentage by weight: 1.5: 8.3: 0.5 calcium dinonylnaphthalenesulfonate, lanolin calcium soap, heptadecenyl imidazolinyl succinate, benzotriazole

Example 8

The difference from example 5 is that:

the corrosion inhibitor comprises 9 weight percent: 2.5: 2.5: 0.5 calcium dinonylnaphthalenesulfonate, calcium lanolin soap, heptadecenyl imidazolinyl alkenyl succinate, and benzotriazole derivatives.

Example 9

The difference from example 5 is that:

the corrosion inhibitor comprises the following components in percentage by weight: 5: 0.9: 0.5 calcium dinonylnaphthalenesulfonate, calcium lanolin soap, heptadecenyl imidazolinyl alkenyl succinate, and benzotriazole derivatives.

Example 10

The difference from example 8 is that: the nonionic surfactant comprises diethylene glycol monobutyl ether and fatty alcohol polyoxyethylene ether in a weight ratio of 2: 1.

Example 11

The difference from example 8 is that: the nonionic surfactant comprises the following components in a weight ratio of 1: 2 diethylene glycol monobutyl ether and alkylphenol polyoxyethylene.

Example 12

The difference from example 8 is that: the nonionic surfactant comprises the following components in a weight ratio of 1: 5 of diethylene glycol monobutyl ether, alkylphenol polyoxyethylene ether and fatty alcohol polyoxyethylene ether (wherein the mass ratio of the alkylphenol polyoxyethylene ether to the fatty alcohol polyoxyethylene ether is 1: 1).

Example 13

The difference from example 11 is that:

8kg of base oil, 2.07kg of lanolin calcium soap and 7.45kg of calcium dinonylnaphthalenesulfonate are mixed, heated to 95 ℃, stirred for 1.5 hours to dissolve and mix evenly, then 12kg of base oil is added, the temperature is reduced to 80 ℃, then 12kg of non-reactive polyamide resin mixture, 3kg of nonionic surfactant and 8kg of oil-soluble film forming agent are added while stirring, the mixture is stirred evenly and then naturally cooled to 70 ℃, 0.5kg of antioxidant, 2.07kg of heptadecenyl imidazoline alkenyl succinate and 0.41kg of benzotriazole derivative are added while stirring until the mixture is stirred evenly, the mixture is continuously naturally cooled to 50 ℃, and diluent is added and stirred evenly.

Example 14

The difference from example 11 is that:

mixing 9kg of base oil, 2.07kg of wool grease calcium soap and 7.45kg of calcium dinonylnaphthalenesulfonate, heating to 100 ℃, stirring for 1 hour, dissolving and uniformly mixing, then cooling 11kg of base oil to 85 ℃, adding 12kg of non-reactive polyamide resin mixture, 3kg of nonionic surfactant and 8kg of oil-soluble film-forming agent while stirring, uniformly stirring, naturally cooling to 75 ℃, adding 0.5kg of antioxidant, 2.07kg of heptadecenyl imidazoline alkenyl succinate and 0.5kg of benzotriazole derivative while stirring until uniform stirring, continuously naturally cooling to 55 ℃, adding diluent, and uniformly stirring.

Example 15

The difference from example 11 is that:

mixing 10kg of base oil, 2.07kg of lanolin calcium soap and 7.45kg of calcium dinonylnaphthalenesulfonate, heating to 110 ℃, stirring for 0.5 hour, dissolving and uniformly mixing, then adding 10kg of base oil, cooling to 90 ℃, then adding 12kg of non-reactive polyamide resin mixture, 3kg of nonionic surfactant and 8kg of oil-soluble film-forming agent while stirring, naturally cooling to 80 ℃ after uniformly stirring, adding 0.5kg of antioxidant, 2.07kg of heptadecenyl imidazoline alkenyl succinate and 0.5kg of benzotriazole derivative while stirring until uniformly stirring, continuously naturally cooling to 60 ℃, adding diluent, and uniformly stirring.

Comparative example 1

F-605 quick-drying dehydration rust-preventive oil, wherein the manufacturer is Nicotiana Henxin chemical technology Co., Ltd;

comparative example 2

The difference from example 14 is that: the nonionic surfactant was replaced with an equal weight of base oil.

Comparative example 3

The difference from example 14 is that: the non-reactive polyamide resin was replaced with an equal weight of base oil.

Performance detection

The rust preventive oils of examples 1 to 15 and comparative examples 1 to 3 were subjected to the following tests:

according to GB/T265-1988 kinematic viscosity of oilDetermination method for viscosity (mm) of antirust oil at 40 DEG C²The detection is carried out in the time/s), the larger the viscosity is, the more viscous the liquid is;

detecting the moisture (%) of the antirust oil according to GB/T260-2016 (distillation method for measuring the water content of petroleum products), wherein the antirust performance of the antirust oil is deteriorated due to excessive moisture;

the method comprises the following steps of detecting the flash point (DEG C) of the anti-rust oil according to GB/T3536-2008 'Cleveland open cup method for measuring the flash point and the burning point of a petroleum product', wherein the higher the flash point is, the better the safety of the anti-rust oil is;

detecting mechanical impurities (%) of the anti-rust oil according to GB/T511-2010 mechanical impurity determination method for petroleum, petroleum products and additives, wherein the detection results are none;

the oil-based stability of the anti-rust oil is detected according to SH/T0214-1998 test method for separation stability of anti-rust oil, and all samples have no phase change and no separation;

carrying out damp-heat test on the antirust oil according to GB/T2361-1992 antirust oil damp-heat test method, wherein a standard test piece of No. 45 steel is adopted in the test, the test time is 60 days, the corrosion condition of the test piece records the corrosion grades according to SH/T0217-;

performing a salt spray test on the antirust oil according to SH/T0081-1991 salt spray test method for antirust oil, wherein a standard test piece of No. 45 steel is adopted in the test, the time is 48h, the corrosion condition of the test piece records the corrosion grade according to SH/T0217-1998 rust-proof oil test piece corrosion degree, the test results are all class A, the days when the test piece is corroded is further recorded, and the longer the time when the test piece is corroded is, the better the salt spray resistance of the antirust oil is;

performing a lamination test on the anti-rust oil according to SH/T0692-2000 appendix A anti-rust oil, wherein a standard 45# steel test piece is adopted in the test, the time is 7 days, the contact surface of the standard 45# steel test piece is evaluated and recorded, and the conditions of the contact surface are mainly four a) unchanged; b) easily removable marks or stains; c) there is some marking or dirt that cannot be removed; d) the corrosion resistance between layers is better when the workpieces are stacked, the test results are unchanged, furthermore, the stacking test is carried out on a standard 45# steel test piece according to the test time of 10 days and 14 days respectively, and the corrosion condition of the test piece is recorded according to SH/T0217-1998 rust-proof grease test piece corrosion degree;

performing water replacement test on the rust preventive oil according to SH/0036-90, judging that the steel sheet is qualified if no rust and no stain are generated after the test of No. 10 steel sheet

The quality indexes of the detection items are shown in a table a, and the detection results are shown in a table 1.

Table a quality index table

TABLE 1 Performance test results

As can be seen from Table 1, in examples 1 to 15 and comparative example 1, the rust inhibitive performance of examples 1 to 15 was superior to that of comparative example 1, so the components and proportions of the present application were superior.

In examples 1 to 3, no rust was observed in the lamination test, and in combination with the fact that the rust inhibitive effect of example 2 was better in the moist heat test and the smoke test, the components and the content of the rust inhibitive oil of example 2 were optimum.

In examples 2 and 4 to 6, the rust inhibitive effect of the rust inhibitive oils of examples 4 to 6 was better than that of example 2, indicating that the components of the oil soluble film forming agent in examples 4 to 6 were more excellent, and in examples 4 to 6, the rust inhibitive effect of the rust inhibitive oil of example 5 was more excellent, indicating that the blending ratio of the components of the oil soluble film forming agent in example 5 was more excellent.

In examples 5 and 7 to 9, the rust inhibitive effects of the rust inhibitive oils of examples 7 to 9 were all superior to those of example 5, indicating that the corrosion inhibitive agents of examples 7 to 9 were superior in composition, that of examples 7 to 9, that of example 8 was superior in rust inhibitive effect, and that the corrosion inhibitive agents of example 8 were superior in composition.

In examples 8 and 10 to 12, the rust inhibitive effects of the rust inhibitive oils of examples 10 to 12 were all superior to those of example 8, indicating that the components of the rust inhibitive oil nonionic surfactants of examples 10 to 12 were superior, that of examples 10 to 12, that of example 11 was superior, and that the compounding ratios of the components of the nonionic surfactant of example 11 were superior.

In examples 11 and 13 to 15, the rust inhibitive effects of the rust inhibitive oils of examples 13 to 15 were slightly superior to those of example 11, and it was demonstrated that the rust inhibitive oils of examples 13 to 15 were more excellent in the preparation process.

In example 14 and comparative examples 2 to 3, the rust inhibitive performance of comparative examples 2 and 3 was lower than that of example 14, and the water replacement property and the rust inhibitive performance of comparative example 2 were also reduced to some extent, which shows that the addition of the nonionic surfactant can significantly improve the water replacement property of the rust inhibitive oil and can improve the rust inhibitive effect of the rust inhibitive oil. As can be seen from the decrease in rust inhibitive performance in comparative example 3, the addition of the non-reactive polyamide resin can significantly improve the rust inhibitive performance of the rust inhibitive oil, and as can be seen from the comparison of comparative examples 2, 3 and example 14, the use of the non-reactive polyamide resin in combination with the nonionic surfactant can effectively ensure the overall rust inhibitive effect and the replacement performance of the rust inhibitive oil.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. A long-acting antirust oil capable of being quickly replaced by water is characterized in that: the adhesive is prepared by mixing the following components in percentage by weight: 20-25% of base oil, 5-10% of oil-soluble film forming agent, 10-15% of corrosion inhibitor, 8-15% of non-reactive polyamide resin, 1-3% of nonionic surfactant, 0.5-1% of antioxidant and the balance of diluent;

the non-reactive polyamide resin is synthesized by the following steps: uniformly mixing dimer acid methyl ester, N-oleoyl sarcosine octadecylamine salt and base oil in a weight ratio of 2:1:1, and reacting at 80-90 ℃ for 1.0-2.0 hours;

the nonionic surfactant is one or more of fatty alcohol-polyoxyethylene ether, alkylphenol ethoxylate and diethylene glycol monobutyl ether.

2. The fast water-displacing long-acting rust preventive oil as claimed in claim 1, wherein: the oil-soluble film forming agent is one or more of oxidized paraffin, oxidized butyl paraffin and lanolin.

3. The fast water-displacing long-acting rust preventive oil as claimed in claim 1, wherein: the oil-soluble film forming agent comprises the following components in percentage by weight of 1: (1-1.5): (0.67-2) oxidized paraffin, oxidized paraffin butyl ester, and lanolin.

4. The fast water-displacing long-acting rust preventive oil as claimed in claim 1, wherein: the corrosion inhibitor is one or more of calcium dinonylnaphthalenesulfonate, lanolin soap, heptadecenyl imidazolinyl alkenyl succinate, benzotriazole and benzotriazole derivatives.

5. The fast water-displacing long-acting rust preventive oil as claimed in claim 4, wherein: the corrosion inhibitor comprises the following components in percentage by weight of 1: (0.15-0.83): (0.15-0.83): (0.05-0.083) calcium dinonylnaphthalenesulfonate, calcium lanolin soap, heptadecenyl imidazolinyl succinate, benzotriazole or benzotriazole derivatives.

6. The fast water-displacing long-acting rust preventive oil as claimed in claim 1, wherein: the nonionic surfactant comprises diethylene glycol monobutyl ether, fatty alcohol-polyoxyethylene ether and alkylphenol polyoxyethylene ether in a weight ratio of 1 (0-5) to (0-5).

7. The method for preparing a rapid water-displacement long-acting rust preventive oil as claimed in any one of claims 1 to 6, wherein: the method comprises the following steps:

8. The preparation method of the rapid water replacement long-acting antirust oil as claimed in claim 7, wherein the preparation method comprises the following steps: the method comprises the following steps:

s3: naturally cooling the second mixture to 70-80 ℃, adding heptadecenyl imidazolinyl alkenyl succinate, antioxidant, benzotriazole or benzotriazole derivative while stirring until the mixture is uniformly stirred;