CN1104667A

CN1104667A - Rust removing and preventing paint

Info

Publication number: CN1104667A
Application number: CN 93121440
Authority: CN
Inventors: 廖龙
Original assignee: XIANDAI INDUSTRIAL TECHNOLOGY INST WUHAN CITY
Current assignee: XIANDAI INDUSTRIAL TECHNOLOGY INST WUHAN CITY
Priority date: 1993-12-31
Filing date: 1993-12-31
Publication date: 1995-07-05

Abstract

The paint which can remove and prevent rust for steel or iron parts, machinery, or pipeline contains such components (wt.%) as synthetic polymer resin (5-15), organic penetrant (2-6), inorganic acid rust-transforming agent (2-6), antirust agent (5-10), thickening agent (3-8), disperser (30-45), filming agent (5-12), stabilizer (6-12) and water (5-10). It features low cost, quick drying, strong adhesion, and resisting ageing, high temp. corrosion, and rubbing.

Description

Rust removing and preventing paint

The invention belongs to a kind of anticorrosive coating, a kind of specifically derust and rust-proof paint that is used for steel and iron member.

Along with industrial expansion, the antirust problem of all kinds of steel and iron member such as bridge, vehicle, pipeline becomes increasingly conspicuous.The rusty stain on the common manual removal steel and iron member of past people surface is coated rust-inhibiting paint again.But the work labor capacity that so not only eliminates rust is big, and easy-clear is not most yet, can't guarantee antirust quality.Occur multiple on rust paint at present, can directly be coated in the steel surface of certain rusty stain, reached the derusting rust-proofing purpose.But there are cost height, poor adhesive force, anticorrosive weak or high temperature resistant difference and the difficult shortcoming of operation at low temperatures in various degree.

The present invention is intended to overcome above-mentioned shortcoming, provides that a kind of cost is low, fast drying, strong adhesion, corrosion-and high-temp-resistant, can directly spray or brush on band rust steel surface, but and under-20 ℃ of low temperature the derust and rust-proof paint of operation still.

The object of the present invention is achieved like this: this lacquer is formed weight percent and is: high molecular synthetic resin 5-15, organic permeate agent 2-6, mineral acid change rust agent 2-6, rust-preventive agent 5-10, thickening material 3-8, dispersion agent 30-45, membrane-forming agent 5-12, stablizer 6-12, water 5-10, the per-cent of optimum weight is: high molecular synthetic resin 7, and organic permeate agent 6, mineral acid change rust agent 3, rust-preventive agent 8.2, thickening material 6.5, dispersion agent 44.5, membrane-forming agent 8, stablizer 9, water 7.8.High molecular synthetic resin is Synolac or Abietyl modified vinegar resin, and organic permeate agent is butanols or cyclohexanone, and the mineral acid transforming agent is a phosphoric acid, and stablizer is a zinc phosphate.

After this lacquer was coated in the steel and iron member surface, solvent evaporated gradually, volume-diminished, makes the dispersive high-polymer molecular approaching mutually, until forming paint film.High molecular synthetic resin is selected for use be the mechanical property (bending, shock strength, sticking power etc.) that makes paint film, ageing-resistant usefulness be that the mechanical property (bending, shock strength, sticking power etc.) that makes paint film, ageing-resistant performance etc. are good, and with change Synolac or the modified rosin resin that the rust agent mixes; Change the rust agent and can form complex compound or inner complex with iron rust, this material is dissolved in again in the paint film, has become useful component; Permeate agent and stablizer have wetting and osmosis to those iron rust of not finishing conversion, iron rust is separated and be enclosed in the paint vehicle, stop further developing of corrosion.What stablizer was selected for use is white, nontoxic, neutral zinc phosphate, its antirust derusting action is to borrow it and metallic surface and resin forms or high-molecular complex reaches, itself is a hydrate, has the ability that forms basic complex, this complex compound can with the further complexing of the polar group of paint vehicle, generate stable crosslinked complex compound to strengthen the water tolerance and the sticking power of paint film, simultaneously again and Fe ³⁺, Fe ²⁺Form complex compound, stop the formation and development of rust.Add less water in paint vehicle, both the reaction to acid played activation, had strengthened changeing rust agent and stablizer to the conversion power of rust, had reduced cost again.

This paints low, fast drying, strong adhesion, ageing-resistant, high temperature resistant, corrosion-resistant, can be with the rust operation, the operation that still can do as usual under-20 ℃ low temperature, can be widely used in bridge, vehicle, freight container, boats and ships, steel sash, mechanical means and pipeline etc. needs on the workpiece of derusting rust-proofings.

Embodiment: with Synolac 7kg, butanols 6kg, phosphoric acid 3kg, rust-preventive agent 8.2kg, thickening material 6.5kg, dispersion agent 44.5kg, membrane-forming agent 8kg, zinc phosphate 9kg, water 7.8kg prepare mixed grinding and form.

The lacquer for preparing, outward appearance is a rust, the technical indicator that records is seen attached list.

Subordinate list

Country coating quality supervision and inspection center

Claims

1, a kind of special type rust-cleaning rust-inhibiting paint, it is characterized in that its composition weight percent is: high molecular synthetic resin 5-15, organic permeate agent 2-6, mineral acid change rust agent 2-6, rust-preventive agent 5-10, thickening material 3-8, dispersion agent 30-45, membrane-forming agent 5-12, stablizer 6-12, water 5-10; The per-cent of optimum weight is: high molecular synthetic resin 7, organic permeate agent 6, mineral acid change rust agent 3, rust-preventive agent 8.2, thickening material 6.5, dispersion agent 44.5, membrane-forming agent 8, stablizer 9, water 7.8.

2, derust and rust-proof paint as claimed in claim 1 is characterized in that described high molecular synthetic resin is Synolac or Abietyl modified acid aldehyde resin;

3, rust-removing and-preventing agent as claimed in claim 1 is characterized in that described organic permeate agent is that butanols is for being cyclohexanone; The agent of described commentaries on classics rust is a phosphoric acid;

4, derust and rust-proof paint as claimed in claim 1 is characterized in that described stablizer is a zinc phosphate.