CN1821331A

CN1821331A - Anti-corrosion paint capable of coating with rust

Info

Publication number: CN1821331A
Application number: CN 200610043230
Authority: CN
Inventors: 刘兴军
Original assignee: 王新成
Priority date: 2006-03-20
Filing date: 2006-03-20
Publication date: 2006-08-23

Abstract

The anticorrosive paint for painting on rusty surface consists of tong oil alcohol acid 40.0-50.0 weight portions, anionic surfactant 0.4-1.0 weight portions, anti-skimming agent 0.5-2.0 weight portions, mixed drier 2.0-5.0 weight portions, iron oxide red 10.0-20.0 weight portions, zinc oxide 5.0-10.0 weight portions, zinc tetrahydroxy yellow 2.0-5.0 weight portions, strontium chromate 2.0-5.0 weight portions, zinc phosphate 2.0-3.0 weight portions, diphenyl guanidine chromate 2.0-4.0 weight portions, toluene 15.0-25.0 weight portions and xylene 6.0-10.0 weight portions. The anticorrosive paint is suitable for rusty iron and steel surface, and may be painted on rusty surface to form corrosion inhibiting deactivating film to reach excellent antirust effect.

Description

Anti-corrosion paint capable of coating with rust

Technical field

The present invention relates to a kind of protective system that can get final product application without rust cleaning.

Background technology

Traditional coating during application, all requires thoroughly rust cleaning on steel surface, this is a very heavy work, has both expended a large amount of man-hours, increases expense again, because of the existence of rusty stain very big to the coating quality influence.According to estimates, general executive cost is 5 times of coating expense, can reach 10 times to the oceanographic equipment construction cost.It is reported that steel plate application expense allocation ratio is: surface treatment accounts for 42%, construction accounts for 30%, and coating accounts for 19%.

For some heavy constructions, as bridge, boats and ships, offshore oil production facility etc., because production cycle is long, often in manufacture process since shop primer damage and get rusty again, so when engineering is built up, also must carry out secondary rust removal to equipment integral, quantities is very big, as building berth secondary rust removal in the shipbuilding industry etc.And, almost all Ex-alls of rusty stain in recoat and maintenance.This situation emerges rust face protective system in order to adapt to just; Rust face protective system is a kind of new coating that can directly be painted on the steel surface of remaining rusty stain, and kind is more, can be divided into three types, i.e. osmosis type, transformant and stable form substantially; But the existing rust face protective system mechanism of action is single, and rust-proof effect is not ideal.

Summary of the invention

Technical problem to be solved by this invention provides a kind of porous rusty scale and rusty scale is sealed, iron rust can be changed into the anti-corrosion paint capable of coating with rust that suppresses compound, can form resistance erosion passive film at bright and clean steel surface.

For achieving the above object, technical scheme of the present invention is: anti-corrosion paint capable of coating with rust, its component are (weight ratio):

Inferior tung oil alkyd (45%-60% oil content) 40.0～50.0;

Anion surfactant 0.4～1.0;

Anti 0.5～2.0;

Mixed Cui Gan agent (lead, cobalt, manganese) 2.0～5.0;

Red iron oxide 10.0～20.0;

Zinc oxide (containing 50% lead) 5.0～10.0;

Four alkali zinc yellows 2.0～5.0;

Strontium yellow 2.0～5.0;

Zinc phosphate 2.0～3.0;

Chromic acid vulkacit D 2.0～4.0;

Toluene 15.0～25.0;

Dimethylbenzene 6.0～10.0.

Inferior tung oil alkyd is modified natural resin, the inferior tung oil alkyd (45%-60%) of medium-oil-length, and not only its drying property is good, and other is as projects such as gloss, hardness, yellowing resistance and wrinkles, all is better than short, long oil resin.

Anion surfactant be use at first, range of application is the widest, output is a maximum class tensio-active agent, it belongs to the nucleic acid salt, its electrolyte-resistant is extremely strong, as have specific characteristics can the raw material of clean-out system, wetting agent and permeate agent.

The anti product is pure methyl ethyl ketoxime, and the methyl ethyl ketoxime product is as clear as crystal, anti-skinning in coating.

Mixed drier is the paint siccative with net effect.Have the advantages that the dryness of urging can be good, easy to use, and mixed drier there is multiple metal synergy, can reduces dosage with multiple single component metal siccative ratio.

Four alkali zinc yellows can generate zinc soap in oiliness, and can in and paint vehicle in the acid decomposition thing.Four alkali zinc yellows water-soluble little, but dissolution rate is more even, and rust inhibition is kept more of a specified duration.As main rust-stabilising pigment, can interact with polyvinyl butyral acetal and phosphoric acid, the complex compound of formation is securely attached on the metallic surface, and the bonding force of raising and upper strata lacquer.The chromic acid vulkacit D has the zinc-chrome yellow of reinforcement and stablizes the action effect of corrosion.

Toluene and dimethylbenzene can improve the perviousness of coating as the polar solvent of this coating.

Red iron oxide, zinc oxide (containing 50% lead), strontium yellow, zinc phosphate are as the color stuffing of this coating, to improve the practicality of this coating.

Rusty scale is a loose porous aqueous solid from structure, is again stable harmless iron cpd and the mixed body of harmful iron cpd from forming.Ultimate principle of the present invention is to adopt the inferior preferably tung oil Synolac of perviousness to be the lacquer base, and the cooperation by means of toluene and dimethylbenzene polar solvent, permeate agent makes coating have good perviousness, thus infiltration and pervious course and its sealing.The present invention also relies on active objectionable constituent reaction in reactive group, reactive pigment or the converting agent of iron rust of resin in the coating and the rusty scale, generates stable inhibition compound, thereby makes whole rusty scale become filler stable, that have protectiveness in the coating.The suitable proportioning of various different activities rust-stabilising pigments and the cooperation of filler in the coating also can make entire belt rust coating have rust-preventing characteristic, weather resistance and physical and mechanical properties preferably.In a word, the present invention can have good adaptability to the steel surface of corrosion, also can form the passive film that can hinder erosion simultaneously on bright and clean steel surface, thereby play rust inhibition preferably.

Embodiment

The protective system of band rust application is characterized in that: its component is (weight ratio):

Inferior tung oil alkyd 42.0;

Anion surfactant 0.5;

Anti 1.0;

Mixed Cui Gan agent (lead, cobalt, manganese) 3.0;

Red iron oxide 15.0;

Zinc oxide (containing 50% lead) 7.5;

Four alkali zinc yellows 3.0;

Strontium yellow 3.0;

Zinc phosphate 1.5;

Chromic acid vulkacit D 2.6;

Toluene 20.0;

Dimethylbenzene 8.0.

The preparation method of described coating is as follows: at room temperature with stirring in the described component adding reactor, stir, promptly make this coating.

Claims

Anti-corrosion paint capable of coating with rust is characterized in that: its component is (weight ratio):

Inferior tung oil alkyd (60% oil content) 40.0～50.0;

Anion surfactant 0.4～1.0;

Anti 0.5～2.0;

Mixed Cui Gan agent (lead, cobalt, manganese) 2.0～5.0;

Red iron oxide 10.0～20.0;

Zinc oxide (containing 50% lead) 5.0～10.0;

Four alkali zinc yellows 2.0～5.0;

Strontium yellow 2.0～5.0;

Zinc phosphate 2.0～3.0;

Chromic acid vulkacit D 2.0～4.0;

Toluene 15.0～25.0;

Dimethylbenzene 6.0～10.0.