CN102816486A - Rust-removing-free environment-friendly acrylic acid zinc phosphate organic composite ceramic anticorrosive paint and preparation method thereof - Google Patents

Abstract

A rust-removing-free environment-friendly acrylic acid zinc phosphate organic composite ceramic anticorrosive paint comprises, by weight, 20-45% of acrylic resin water dispersion, 3-15% of zinc phosphate, 1-6% of hydroxy ethylidene diphosphonic acid, 1-9% of silicon carbide, 1-5% of alumina, 5-15% of titanium dioxide, 5-20% of ceramic powder, 1-8% of silicon sol, 1-5% of glass cellulose and 1-6% of graphite. The preparation method includes organic combination of a stabile nanometer material, a dense corrosion resistant ceramic material, a flexible chaining material and the like and rust removal conversion materials such as acrylic acid, zinc phosphate and organic phosphine. During coating of the prepared paint, only manual rust removing is required to enable the paint to reach St 2 level according to the international standard. The formed paint has good abrasion resistance, corrosion resistance, impact resistance property and weather resistance and is strong in paint adhesion force and compact and smooth in the surface.

Description

Exempt organic composite ceramics protective system of rust environmental protection vinylformic acid zn phosphate and preparation method thereof

Technical field

The present invention relates to coating, organic composite ceramics protective system of particularly a kind of release rust environmental protection vinylformic acid zn phosphate and preparation method thereof.

Background technology

Steelwork is exposed under the environment such as atmosphere, soil, water and all can gets rusty.Before it is carried out corrosionproof protection, painting anticorrosion coating, the operation that generally all need at first eliminate rust, and adopt derusting by sandblast more.This derusting process program takes time and effort consumptive material, and environment and human body are all caused very adverse influence.So people are exploring exploitation release rust coating process for many years, mainly are the exploitations of exempting rust coating always.Had at present to be called as to have the release rust coating products appearance of exempting the rust function, but mostly be to adopt acid decomposition to transform the technological line of iron rust.Fairly simple prescription has independent or composite uses such as the normal-temperature phosphorizing liquid of employing, silicon sol, organic acid; This series products is relatively poor to the conversion performance of iron and steel corrosion; Film forming ability is also relatively poor, even also all there are some defective on the commercial applications in current up-to-date this series products and technology; Mainly be that paint coatings stability, density, sticking power, slickness, electrochemical corrosion resistant or the like problem is more outstanding, so also do not occur so far by the release of social widespread use rust protective system product.

Summary of the invention

The object of the invention exactly in order to solve the problems referred to above that prior art exists, provides organic composite ceramics protective system of a kind of release rust environmental protection vinylformic acid zn phosphate and preparation method thereof.

To achieve these goals, the present invention has adopted following technical scheme: the organic composite ceramics protective system of a kind of release rust environmental protection vinylformic acid zn phosphate is prepared from following components in weight percent:

Vinyl resin water dispersion 20%～45%;

Zn phosphate 3%～15%;

Hydroxy ethylene diphosphonic acid 1%～6%;

Silit 1%～9%;

Aluminum oxide 1%～5%;

White titanium pigment 5%～15%;

Ceramics powder 5%～20%;

Silicon sol 1%～8%;

Spun glass plain 1%～5%;

Graphite 1%～6%.

The preparation method of the organic composite ceramics protective system of above-mentioned release rust environmental protection vinylformic acid zn phosphate may further comprise the steps:

A, zn phosphate, silit, aluminum oxide, white titanium pigment, ceramics powder, spun glass element and graphite are carried out the nanometer ultrafining treatment respectively, make granularity reach 10～750nm;

B, form zn phosphate, silit, aluminum oxide, white titanium pigment, ceramics powder, spun glass element and the graphite accurately take by weighing after the nanometer ultrafining treatment by weight percentage and drop into to mix in the sand mill and be mixed fillers;

C, step b gained mixed fillers is placed high speed dispersor, add vinyl resin water dispersion, hydroxy ethylene diphosphonic acid and the silicon sol of forming accurate weighing by weight percentage, stir, obtain work in-process;

D, step c gained work in-process are finished product through filtration, quality inspection, barrelling.

The present invention adopts stabilized nanoscale material, closely knit corrosion resistant stupalith, flexible link material etc. to organically combine with rust cleaning converting materials such as vinylformic acid, zn phosphate, organic phosphines; The coating of preparing need only get final product according to international standard hand cleaning to St2 level when application; Formed coating has excellent abrasion resistance, erosion resistance, impact resistance and weathering resistance, and coating adhesion is strong, surface compact, smooth.

Embodiment

Embodiment 1

Zn phosphate, silit, aluminum oxide, white titanium pigment, ceramics powder, spun glass element and graphite are carried out the nanometer ultrafining treatment respectively, make granularity reach 10～750nm;

Accurately take by weighing to mix in 15 kilograms of 15 kilograms of 3 kilograms in 6 kilograms in 12 kilograms of zn phosphates, silit, aluminum oxide, white titanium pigments, ceramics powders, 5 kilograms of spun glass elements and the 5 kilograms of input sand mills of graphite after the nanometer ultrafining treatment and be mixed fillers;

Above-mentioned mixed fillers is changed in the high speed dispersor, add 6 kilograms of 30 kilograms of vinyl resin water dispersions, 3 kilograms of hydroxy ethylene diphosphonic acids and silicon sol, stir, obtain work in-process;

Work in-process are promptly obtained the organic composite ceramics protective system of a kind of release rust environmental protection vinylformic acid zn phosphate of the present invention finished product through filtration, quality inspection, barrelling.

Embodiment 2

Zn phosphate, silit, aluminum oxide, white titanium pigment, ceramics powder, spun glass element and graphite are carried out the nanometer ultrafining treatment respectively, make granularity reach 10～750nm;

Accurately take by weighing to mix in 20 kilograms of 10 kilograms of 5 kilograms in 9 kilograms in 15 kilograms of zn phosphates, silit, aluminum oxide, white titanium pigments, ceramics powders, 3 kilograms of spun glass elements and the 4 kilograms of input sand mills of graphite after the nanometer ultrafining treatment and be mixed fillers;

Above-mentioned mixed fillers is changed in the high speed dispersor, add 8 kilograms of 20 kilograms of vinyl resin water dispersions, 6 kilograms of hydroxy ethylene diphosphonic acids and silicon sol, stir, obtain work in-process;

Work in-process are promptly obtained the organic composite ceramics protective system of a kind of release rust environmental protection vinylformic acid zn phosphate of the present invention finished product through filtration, quality inspection, barrelling.

Embodiment 3

Zn phosphate, silit, aluminum oxide, white titanium pigment, ceramics powder, spun glass element and graphite are carried out the nanometer ultrafining treatment respectively, make granularity reach 10～750nm;

Accurately take by weighing to mix in 5 kilograms of 13 kilograms of 1 kilogram in 8 kilograms in 12 kilograms of zn phosphates, silit, aluminum oxide, white titanium pigments, ceramics powders, 2 kilograms of spun glass elements and the 3 kilograms of input sand mills of graphite after the nanometer ultrafining treatment and be mixed fillers;

Above-mentioned mixed fillers is changed in the high speed dispersor, add 5 kilograms of 40 kilograms of vinyl resin water dispersions, 1 kilogram of hydroxy ethylene diphosphonic acid and silicon sol, stir, obtain work in-process;

Work in-process are promptly obtained the organic composite ceramics protective system of a kind of release rust environmental protection vinylformic acid zn phosphate of the present invention finished product through filtration, quality inspection, barrelling.

Embodiment 4

Zn phosphate, silit, aluminum oxide, white titanium pigment, ceramics powder, spun glass element and graphite are carried out the nanometer ultrafining treatment respectively, make granularity reach 10～750nm;

Accurately take by weighing to mix in 20 kilograms of 12 kilograms of 4 kilograms in 1 kilogram in 3 kilograms of zn phosphates, silit, aluminum oxide, white titanium pigments, ceramics powders, 4 kilograms of spun glass elements and the 6 kilograms of input sand mills of graphite after the nanometer ultrafining treatment and be mixed fillers;

Above-mentioned mixed fillers is changed in the high speed dispersor, add 1 kilogram of 45 kilograms of vinyl resin water dispersions, 4 kilograms of hydroxy ethylene diphosphonic acids and silicon sol, stir, obtain work in-process;

Work in-process are promptly obtained the organic composite ceramics protective system of a kind of release rust environmental protection vinylformic acid zn phosphate of the present invention finished product through filtration, quality inspection, barrelling.

Embodiment 5

Zn phosphate, silit, aluminum oxide, white titanium pigment, ceramics powder, spun glass element and graphite are carried out the nanometer ultrafining treatment respectively, make granularity reach 10～750nm;

Accurately take by weighing to mix in 20 kilograms of 5 kilograms of 5 kilograms in 9 kilograms in 15 kilograms of zn phosphates, silit, aluminum oxide, white titanium pigments, ceramics powders, 1 kilogram of spun glass element and the 1 kilogram of input sand mill of graphite after the nanometer ultrafining treatment and be mixed fillers;

Above-mentioned mixed fillers is changed in the high speed dispersor, add 3 kilograms of 35 kilograms of vinyl resin water dispersions, 6 kilograms of hydroxy ethylene diphosphonic acids and silicon sol, stir, obtain work in-process;

Work in-process are promptly obtained the organic composite ceramics protective system of a kind of release rust environmental protection vinylformic acid zn phosphate of the present invention finished product through filtration, quality inspection, barrelling.

Coating of the present invention is directly sprayed at normal temperatures or brushes in the metallic surface; Iron rust is converted into organic iron macromolecular compound; Combine with multiple matrix materials such as sintering metal, organic anti-corrosive agent to form the compound organic ceramic corrosion protection coating with excellent abrasion resistance, erosion resistance, impact resistance and weathering resistance, coating adhesion is strong, coatingsurface is fine and close, smooth.Can be widely used in marine steelwork, boats and ships, bridge, pipe laying, petroleum storage tank and chemical plant, boats and ships, harbour, gate, pipeline, reach other large-scale iron structure building anti-corrosion etc.

Coating of the present invention is water-borne coatings, does not contain harmful ingredients, and easy to use efficient, comprehensive cost is low.

The concrete method of use of coating of the present invention is following:

Earlier coating is shaken up before using;

The rust cleaning standard of base material: get final product according to international standard hand cleaning to St2 level;

With instruments such as hairbrush, round brush, spray guns, these article are coated in the surface of steel workpiece of being with corrosion, can carry out follow-up coating process after 5 hours, thick-layer can divide twice application;

Can not be lower than under the dew point condition at the weather that rains and high humidity and temperature and construct; Paint film needs maintenance to be no less than 24 hours generally speaking.

The The performance test results of coating of the present invention is as shown in table 1:

Table 1

Claims (2)

1. exempt the organic composite ceramics protective system of rust environmental protection vinylformic acid zn phosphate for one kind, it is characterized in that: be prepared from following components in weight percent:

Vinyl resin water dispersion 20%～45%;

Zn phosphate 3%～15%;

Hydroxy ethylene diphosphonic acid 1%～6%;

Silit 1%～9%;

Aluminum oxide 1%～5%;

White titanium pigment 5%～15%;

Ceramics powder 5%～20%;

Silicon sol 1%～8%;

Spun glass plain 1%～5%;

Graphite 1%～6%.

2. the preparation method of the organic composite ceramics protective system of release rust environmental protection vinylformic acid zn phosphate as claimed in claim 1 is characterized in that, may further comprise the steps:

A, zn phosphate, silit, aluminum oxide, white titanium pigment, ceramics powder, spun glass element and graphite are carried out the nanometer ultrafining treatment respectively, make granularity reach 10～750nm;

B, form zn phosphate, silit, aluminum oxide, white titanium pigment, ceramics powder, spun glass element and the graphite accurately take by weighing after the nanometer ultrafining treatment by weight percentage and drop into to mix in the sand mill and be mixed fillers;

C, step b gained mixed fillers is placed high speed dispersor, add vinyl resin water dispersion, hydroxy ethylene diphosphonic acid and the silicon sol of forming accurate weighing by weight percentage, stir, obtain work in-process;

D, step c gained work in-process are finished product through filtration, quality inspection, barrelling.