CN103484213A - Rust inhibitor for automobile steel sheets - Google Patents

Abstract

The invention discloses a rust inhibitor for automobile steel sheets, which is prepared from the following raw materials in parts by weight: 70-76 parts of L-AN32# total loss system oil, 4-5 parts of sodium petroleum sulfonate, 3-5 parts of dodecylene succinic acid, 2-3 parts of oleic acid polyoxyethylene ester, 1-2 parts of alkylphenol polyoxyethylene, 1-2 parts of zinc dialkyl dithiophosphate, 1-2 parts of benzoic acid monoethanolamine, 2-3 parts of film-forming assistant and 0.2-0.3 part of hydroquinone. The rust inhibitor solves the problem of balance among rust inhibition, lubricating property and degreasing property, satisfies the properties for anti-rust oil for automobile steel sheets, and has the advantages of high water resistance, high corrosion resistance and the like.

Description

A kind of autobody sheet rust-preventive agent

Technical field

The present invention relates generally to a kind of rust-preventive agent, relates in particular to a kind of autobody sheet rust-preventive agent.

Background technology

It is antirust that rust-preventive agent is mainly used in the metalwork surface, very eurypalynous antirust product is arranged at present, the rust-preventive agent be prepared from such as components such as general employing solvent slushing oil or Sodium Nitrite water, film forming material pitch and petroleum resin, but certain defect is also arranged, such as rate of drying is slow, paint film is unstable etc., and it is necessary therefore by reasonably combined new various raw materials, preparing more high performance rust-preventive agent.

Summary of the invention

The object of the invention just is to provide a kind of autobody sheet rust-preventive agent.

The present invention is achieved by the following technical solutions:

A kind of autobody sheet rust-preventive agent, it is comprised of the raw material of following weight parts:

L-AN32 # total loss is oily 70-76, petroleum sodium sulfonate 4-5, dodecenylsuccinic acid 3-5, polyoxyethylene oleic acid ester 2-3, alkylphenol polyoxyethylene 1-2, zinc dialkyl dithiophosphate 1-2, phenylformic acid monoethanolamine 1-2, film coalescence aid 2-3, Resorcinol 0.2-0.3 for system;

Described film coalescence aid is comprised of the raw material of following weight parts:

Drying oil alkyd resin 30-40, hexamethoxymethyl melamine resin 2-3, Oleum Cinnamomi 1-2, polyvinylpyrrolidone 1-2, N-phenyl-2-naphthylamine 0.1-0.3, Union carbide A-162 0.1-0.2;

Above-mentioned drying oil alkyd resin is mixed with Oleum Cinnamomi, at 90-100 ℃ of lower insulated and stirred 6-8 minute, the reduction temperature is 55-65 ℃, adds the hexamethoxymethyl melamine resin, after fully stirring, adds Union carbide A-162,200-300 rev/min of dispersed with stirring 10-15 minute, the rising temperature is 130-135 ℃, adds each raw material of residue, insulation reaction 1-3 hour, be cooled to normal temperature, obtain described film coalescence aid.

The preparation method of rust-preventive agent for a kind of autobody sheet comprises the following steps:

Above-mentioned L-AN32 # total loss system is heated to 120-140 ℃ with oil, add petroleum sodium sulfonate, dodecenylsuccinic acid, stirring reaction 15-20 minute, add polyoxyethylene oleic acid ester, alkylphenol polyoxyethylene, zinc dialkyl dithiophosphate, the reduction temperature is 60-70 ℃, and insulated and stirred 2-3 hour adds each raw material of residue, fully stir, filter discharging.

Advantage of the present invention is:

The invention solves the relational balance of rust-preventing characteristic and oilness and degreasing, meet the properties of anti-rust oil for automobile leaf-spring, there is the well performance such as water-fast, corrosion-resistant.

Embodiment

Embodiment 1

A kind of autobody sheet rust-preventive agent, it is comprised of the raw material of following weight parts (kilogram):

Oil 76, petroleum sodium sulfonate 5, dodecenylsuccinic acid 3, polyoxyethylene oleic acid ester 3, alkylphenol polyoxyethylene 2, zinc dialkyl dithiophosphate 2, phenylformic acid monoethanolamine 1, film coalescence aid 3, Resorcinol 0.3 for L-AN32 # total loss system;

Described film coalescence aid is comprised of the raw material of following weight parts:

Drying oil alkyd resin 40, hexamethoxymethyl melamine resin 3, Oleum Cinnamomi 1, polyvinylpyrrolidone 1, N-phenyl-2-naphthylamine 0.3, Union carbide A-162 0.2;

Above-mentioned drying oil alkyd resin is mixed with Oleum Cinnamomi, 100 ℃ of lower insulated and stirred 8 minutes, reducing temperature is 65 ℃, adds the hexamethoxymethyl melamine resin, after fully stirring, adds Union carbide A-162,300 rev/mins of dispersed with stirring 15 minutes, the rising temperature is 135 ℃, adds each raw material of residue, insulation reaction 3 hours, be cooled to normal temperature, obtain described film coalescence aid.

The preparation method of rust-preventive agent for a kind of autobody sheet comprises the following steps:

Above-mentioned L-AN32 # total loss system is heated to 140 ℃ with oil, add petroleum sodium sulfonate, dodecenylsuccinic acid, stirring reaction 17 minutes, add polyoxyethylene oleic acid ester, alkylphenol polyoxyethylene, zinc dialkyl dithiophosphate, reducing temperature is 70 ℃, and insulated and stirred 2 hours adds each raw material of residue, fully stir, filter discharging.

Performance test:

Humid heat test: 30 days, result: 45 steel were qualified, T3 copper is qualified;

Corrosion test: 7 days, result: 45 steel were qualified, T3 copper is qualified;

Salt-fog test: 7 days, 45 steel were qualified, T3 copper is qualified.

Claims (2)

1. an autobody sheet rust-preventive agent is characterized in that what it was comprised of the raw material of following weight parts:

L-AN32 # total loss is oily 70-76, petroleum sodium sulfonate 4-5, dodecenylsuccinic acid 3-5, polyoxyethylene oleic acid ester 2-3, alkylphenol polyoxyethylene 1-2, zinc dialkyl dithiophosphate 1-2, phenylformic acid monoethanolamine 1-2, film coalescence aid 2-3, Resorcinol 0.2-0.3 for system;

Described film coalescence aid is comprised of the raw material of following weight parts:

Drying oil alkyd resin 30-40, hexamethoxymethyl melamine resin 2-3, Oleum Cinnamomi 1-2, polyvinylpyrrolidone 1-2, N-phenyl-2-naphthylamine 0.1-0.3, Union carbide A-162 0.1-0.2;

Above-mentioned drying oil alkyd resin is mixed with Oleum Cinnamomi, at 90-100 ℃ of lower insulated and stirred 6-8 minute, the reduction temperature is 55-65 ℃, adds the hexamethoxymethyl melamine resin, after fully stirring, adds Union carbide A-162,200-300 rev/min of dispersed with stirring 10-15 minute, the rising temperature is 130-135 ℃, adds each raw material of residue, insulation reaction 1-3 hour, be cooled to normal temperature, obtain described film coalescence aid.

2. the preparation method of rust-preventive agent for an autobody sheet as claimed in claim 1 is characterized in that comprising the following steps:

Above-mentioned L-AN32 # total loss system is heated to 120-140 ℃ with oil, add petroleum sodium sulfonate, dodecenylsuccinic acid, stirring reaction 15-20 minute, add polyoxyethylene oleic acid ester, alkylphenol polyoxyethylene, zinc dialkyl dithiophosphate, the reduction temperature is 60-70 ℃, and insulated and stirred 2-3 hour adds each raw material of residue, fully stir, filter discharging.