CN103265891A - Hard-film rust-preventative oil - Google Patents

Abstract

The invention provides a hard-film rust-preventative oil which is resistant to moisture, heat and salt mist and a preparation method thereof, and belongs to the technical field of rust-preventative oil. The hard-film rust-preventative oil comprises the following components in parts by weight: 20-30 parts of film-forming resin, 10-25 parts of a rust-preventative agent, 0.5-2 parts of an antioxidant, 0.1-1 parts of an antifoam agent and 60-85 parts of a 120# solvent, wherein the film-forming agent is prepared from the following raw materials in parts by weight: 5-10 parts of colophonium, 25-40 parts of tert-butyl phenol formaldehyde resin, 10-20 parts of cis-butenedioic anhydride, 20-35 parts of 120# solvent oil and 5-10 parts of dimethyl benzene. The durability in a salt mist test can last for 95 days, and the durability in a warm test can last for 27 days; and the hard-film rust-preventative oil has a good rust-preventative performance.

Description

A kind of hard film rust preventive oil

Technical field

The present invention relates to the slushing oil technology, particularly hard film rust preventive oil of a kind of moisture-proof heat, salt spray resistance and preparation method thereof belongs to the slushing oil technical field.

Background technology

Slushing oil is to be base oil with lubricating oil, adds rust-preventive agent and some therein and improves additive and make.At present, slushing oil on the market has dewatering rust preventive oil, solvent-borne type soft film anti-rust oil, anti-rust oil with colour hard film etc.Wherein, some product hardness of film is not enough, and weather resisteant is poor, and what have is opaque, and the humidity resistance of common hard film rust preventive oil, salt fog resistance are undesirable.Particularly at the harbour, boats and ships use, the process of its deterioration is accelerated in the easier influence that is subjected to salt fog.

Summary of the invention

At above commentary to prior art, technical problem to be solved by this invention is: the problem of the humidity resistance of rust preventive lubricating oil, salt fog resistance difference, and the technical scheme of employing is:

A kind of hard film rust preventive oil is characterized in that: include following component by weight: 20～30 parts of film-forming resins, 10～25 parts of rust-preventive agent, 0.5～2 part in oxidation inhibitor, 0.1～1 part of defoamer, 60～85 parts of 120# solvent oils; The preparation method of described film-forming resin is: (1) puts into reactor with rosin 5～10 weight parts and cis-butenedioic anhydride 10～20 weight parts, be warming up to 95 ± 2 ℃, stir, add dimethylbenzene 5～10 weight parts, tert-butyl phenol formaldehyde resin 25～40 weight parts successively, be warming up to 150 ± 2 ℃, and kept 1.5 hours; (2) cooling to 85 ± 2 ℃, adds 120# solvent oil 20～35 weight parts, stir evenly film-forming resin.

Above-mentioned rust-preventive agent can be selected from a kind of any several compositions in benzotriazole, oxidized petrolatum barium soap or the barium mahogany sulfonate.

Above-mentioned oxidation inhibitor can be selected from 2,6 ditertiary butyl p cresol or four-[3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.

Above-mentioned defoamer can be organosilicon or ethanol.

This hard film rust preventive oil can prepare by the following method:

S1: rust-preventive agent, oxidation inhibitor, 120# solvent are put into reactor, be warming up to 50 ± 2 ℃, stir 1h;

S2: add film-forming resin and defoamer in the mixture of gained in the S1 step, stir evenly, cooling is filtered, namely.

Beneficial effect

Slushing oil provided by the invention has good antiseptic property, and the weather resistance in the salt-fog test can reach 95 days, and the weather resistance in the warm test can reach 27 days, and extreme pressure property is more than 850N.

Embodiment

Prepare each component by the weight ratio shown in the table 1.

The weight proportion of table 1 embodiment 1～embodiment 3

Rust-preventive agent adopts benzotriazole; Oxidation inhibitor adopts 2,6 ditertiary butyl p cresol; Defoamer adopts ethanol.

The preparation method is as follows:

Embodiment 1

S1: rosin and cis-butenedioic anhydride are put into reactor, be warming up to 95 ± 2 ℃, stir, add dimethylbenzene, tert-butyl phenol formaldehyde resin successively, be warming up to 150 ± 2 ℃, and kept 1.5 hours;

S2: cooling, to 85 ± 2 ℃, add the 120# solvent oil, stir evenly film-forming resin;

S3: benzotriazole, 2,6 ditertiary butyl p cresol, 120# solvent are put into reactor, be warming up to 50 ± 2 ℃, stir 1h;

S4: add film-forming resin and organosilicon, stir evenly, cooling is filtered, namely.

Embodiment 2

Be with the difference of embodiment 1: among the step S3, oxidized petrolatum barium soap, four-[3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 120# solvent are put into reactor, be warming up to 50 ± 2 ℃, stir 1h; Among the step S4, add film-forming resin and ethanol, stir evenly, cooling is filtered, namely.

Embodiment 3

Be with the difference of embodiment 1: among the step S3,10 parts of oxidized petrolatum barium soaps, 15 parts of benzotriazoles, 2,6 ditertiary butyl p cresol, 120# solvent are put into reactor, be warming up to 50 ± 2 ℃, stir 1h; Among the step S4, add film-forming resin and organosilicon, stir evenly, cooling is filtered, namely.

Embodiment 4

Be with the difference of embodiment 1: among the step S3, barium mahogany sulfonate, four-[3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester, 120# solvent are put into reactor, be warming up to 50 ± 2 ℃, stir 1h; Among the step S4, add film-forming resin and ethanol, stir evenly, cooling is filtered, namely.

Performance test

The accurate method of above-described embodiment gained slushing oil sighting target is carried out performance test, and contrast with commercially available common slushing oil, test-results is as shown in table 2.

The performance test data of table 2 embodiment 1～embodiment 3 and reference examples

Claims (5)

1. a hard film rust preventive oil is characterized in that: include following component by weight: 20～30 parts of film-forming resins, 10～25 parts of rust-preventive agent, 0.5～2 part in oxidation inhibitor, 0.1～1 part of defoamer, 60～85 parts of 120# solvent oils; The preparation method of described film-forming resin is: (1) puts into reactor with rosin 5～10 weight parts and cis-butenedioic anhydride 10～20 weight parts, be warming up to 95 ± 2 ℃, stir, add dimethylbenzene 5～10 weight parts, tert-butyl phenol formaldehyde resin 25～40 weight parts successively, be warming up to 150 ± 2 ℃, and kept 1.5 hours; (2) cooling to 85 ± 2 ℃, adds 120# solvent oil 20～35 weight parts, stir evenly film-forming resin.

2. a kind of hard film rust preventive oil according to claim 1, it is characterized in that: described rust-preventive agent is selected from a kind of any several compositions in benzotriazole, oxidized petrolatum barium soap or the barium mahogany sulfonate.

3. a kind of hard film rust preventive oil according to claim 1 is characterized in that: described oxidation inhibitor is selected from 2,6 ditertiary butyl p cresol or four-[3-(3,5-di-tert-butyl-hydroxy phenyl) propionic acid] pentaerythritol ester.

4. a kind of hard film rust preventive oil according to claim 1, it is characterized in that: described defoamer is organosilicon or ethanol.

5. according to the preparation method of each described a kind of hard film rust preventive oil of claim 1～4, it is characterized in that: the preparation method of described hard film rust preventive oil comprises following steps:

S1: rust-preventive agent, oxidation inhibitor, 120# solvent are put into reactor, be warming up to 50 ± 2 ℃, stir 1h;

S2: add film-forming resin and defoamer in the mixture of gained in the S1 step, stir evenly, cooling is filtered, namely.