CN103468077A - Water-based antirust paint for steel structure as well as production method thereof - Google Patents

Abstract

The invention provides a water-based antirust paint for a steel structure. The water-based antirust paint comprises the following components in parts by weight: 25-35 parts of an acrylic emulsion, 3-15 parts of pigment, 5-15 parts of an antirust agent, 15-25 parts of filler, 0.15-0.25 part of a flatting agent, 0.15-0.25 part of a dispersant, 0.2-0.4 part of a defoamer, 1.0-1.5 parts of a film-forming agent, 0.3-0.4 part of an anti-flash rust agent, 10-20 parts of deionized water, 0.7-1.3 parts of a neutralizer and 0.3-0.45 part of a thickener. The water-based antirust paint provided by the invention is fast in drying speed: 5-10 minutes for surface dry and within 6 hours for hard dry, so that the coating production efficiency is enhanced. When a product is coated, the paint is just diluted by tap water, so that the coating cost is lowered. The VOC (Volatile Organic Compounds) content is not greater than 85, so that damage to human body during coating is reduced. The salt spray resistance property of the paint can reach over 500 hours, and the corrosion resistance of the paint is strong.

Description

A kind of steel construction use rust-inhibiting paint and production technique thereof

Technical field

The invention belongs to the paint technology field, be specifically related to a kind of steel construction use rust-inhibiting paint and production technique thereof.

Background technology

Along with expanding economy, people more and more pay attention to environment protection, and especially for large-scale steel structure factory, now the steel construction profit is very low, in addition harmful to painter's health during oil paint coating, cause the steel structure coating expense greatly to improve.90% steel construction factory still adopts the oiliness alcohol acid antirust paint to carry out operation in the market, large, the dry speed of oiliness alcohol acid antirust paint smell is slow, salt spray resistance and the artificial ageing resistance performance all poor, because the steel construction volume is larger, can't build exhausting system Painting Shop preferably, so the environment very severe of application, and cost is also very high.

Summary of the invention

The objective of the invention is to overcome the deficiencies in the prior art and a kind of steel construction use rust-inhibiting paint is provided, both having reduced the external coating cost of steel construction, having reduced again the pollution that air is caused.

A kind of steel construction use rust-inhibiting paint, in components by weight percent, comprise: 25～35 parts of ACRYLIC EMULSION, 3～15 parts of pigment, 5～15 parts of rust-preventive agent, 15～25 parts of fillers, 0.15～0.25 part of flow agent, 0.15～0.25 part of dispersion agent, 0.2～0.4 part of defoamer, 1.0～1.5 parts of membrane-forming agents, anti-0.3～0.4 part of rust agent, 10～20 parts of deionized waters, 0.7～1.3 part of neutralizing agent, 0.3～0.45 part of the thickening material of dodging.

Described pigment is red iron oxide.

Described rust-preventive agent is the phosphorus titanium valve.

Described filler is organobentonite, process white and water-ground limestone mixture in any proportion.

The production technique of above-mentioned steel construction use rust-inhibiting paint, concrete steps are as follows:

Step 1, be dissolved in 1/4～1/3 ACRYLIC EMULSION in 1/6～1/5 deionized water, then add 1/3～1/2 neutralizing agent, stirs;

Step 2 adds dispersion agent and 1/3～1/2 defoamer in the solution of step 1 gained, after stirring mixes it, adds while stirring pigment and filler, is ground to fineness and reaches 40～45 microns;

Step 3, by step 2 gained solution filter, get filtrate, adds the residual acrylic acid emulsion in filtrate, adds remaining neutralizing agent;

Step 4 adds the residue defoamer in step 3 gained solution, adopt 300～400 turn divide and stir 10～15 minutes, then add rust-preventive agent, adopt 600～800 turn divide and stir 5～8 minutes;

Step 5, will prevent dodging the rust agent and be dissolved in the residue deionized water, then add flow agent, membrane-forming agent, after stirring, add in step 4 gained solution, then add thickening material, stir.

Compared with prior art, its remarkable advantage is in the present invention: the first, and rate of drying is fast, and surface drying 5～10 minutes, did solid work in 6 hours, promoted painting efficiency; The second, only need to use the tap water latting drown during product painting, but the alkyd paint rust-inhibiting paint need to adopt thinner, has reduced painting cost; The 3rd, VOC content is higher than 85, while having reduced application to the injury of human body; The 4th, salt spray resistance can reach more than 500 hours, and antiseptic property is strong.

Embodiment

ACRYLIC EMULSION A(MC-105 Beijing Orient subfamily power chemical industry)

Source emulsion in ACRYLIC EMULSION B(BS-104 letter)

Red iron oxide (oxidation ironworks, Xinxiang, 190D Henan)

Rust-preventive agent (B-500 Changzhou Zhong Pu Science and Technology Ltd.)

Barium sulfate (500 order process white Shandong Zibo Yong Bin ore factory)

Coarse whiting (500 order water-ground limestone)

Organobentonite (SMP-HV Zhejiang Feng Hong Materials Co., Ltd)

Dispersion agent (the 706W enlightening is high)

Defoamer (the NXZ Germany former section of BASF is peaceful)

Film coalescence aid (TEXANOL U.S. Yi Shiman)

Flow agent (2025 French high Supreme Being Si)

The agent (shop, Sodium Nitrite chemical industry supermarket) of anti-sudden strain of a muscle rust

Thickening material (3800 French high Supreme Being Si)

Neutralizing agent (AMP-95 LG-DOW)

The steel construction use rust-inhibiting paint formula of embodiment 1 to 5 is as follows:

The preparation method:

Step 1, be dissolved in 1/4～1/3 ACRYLIC EMULSION in 1/6～1/5 deionized water, then add 1/3～1/2 neutralizing agent, stirs;

Step 2 adds dispersion agent and 1/3～1/2 defoamer in the solution of step 1 gained, after stirring mixes it, adds while stirring pigment and filler, is ground to fineness and reaches 40～45 microns;

Step 3, by step 2 gained solution filter, get filtrate, adds the residual acrylic acid emulsion in filtrate, adds remaining neutralizing agent;

Step 4 adds the residue defoamer in step 3 gained solution, adopt 300～400 turn divide and stir 10～15 minutes, then add rust-preventive agent, adopt 600～800 turn divide and stir 5～8 minutes;

Step 5, will prevent dodging the rust agent and be dissolved in the residue deionized water, then add flow agent, membrane-forming agent, after stirring, add in step 4 gained solution, then add thickening material, stir.

Performance test:

Spray plate after adopting tap water according to 1:0.3～1:0.6 latting drown, traditional performance detects after 48 hours until drying at room temperature, and the type inspection project was done test until room temperature after dry 7 days.Thickness detects according to GB/T13452.2-2008; The drying varniss time is detected according to GB/T1728-1979 (1989); Sticking power detects according to GB/T1720-1979 (1989); Gloss detects according to GB/T9754-1988; Artificial ageing resistance detects according to GB/T23987-2009; Salt fog resistance detects according to GB/T1771-1991.

Embodiment 1 to 5 the results are shown in following table with alkyd oil-base paint all-round property testing

Claims (5)

1. a steel construction use rust-inhibiting paint, is characterized in that, in components by weight percent, comprises: 25～35 parts of ACRYLIC EMULSION, 3～15 parts of pigment, 5～15 parts of rust-preventive agent, 15～25 parts of fillers, 0.15～0.25 part of flow agent, 0.15 ~ 0.25 part of dispersion agent, 0.2～0.4 part of defoamer, 1.0～1.5 parts of membrane-forming agents, 0.3～0.4 part of anti-sudden strain of a muscle rust agent, 10～20 parts of deionized waters, 0.7 ~ 1.3 part of neutralizing agent, 0.3 ~ 0.45 part of thickening material.

2. steel construction use rust-inhibiting paint according to claim 1, it is characterized in that: described pigment is red iron oxide.

3. steel construction use rust-inhibiting paint according to claim 1, it is characterized in that: described rust-preventive agent is the phosphorus titanium valve.

4. steel construction use rust-inhibiting paint according to claim 1, it is characterized in that: described filler is organobentonite, process white and water-ground limestone mixture in any proportion.

5. the production technique of the described steel construction use of claim 1 to 4 any one rust-inhibiting paint comprises the following steps:

Step 1, be dissolved in 1/4～1/3 ACRYLIC EMULSION in 1/6～1/5 deionized water, then add 1/3～1/2 neutralizing agent, stirs;

Step 2 adds dispersion agent and 1/3～1/2 defoamer in the solution of step 1 gained, after stirring mixes it, adds while stirring pigment and filler, is ground to fineness and reaches 40～45 microns;

Step 3, by step 2 gained solution filter, get filtrate, adds the residual acrylic acid emulsion in filtrate, adds remaining neutralizing agent;

Step 4 adds the residue defoamer in step 3 gained solution, adopt 300～400 turn divide and stir 10～15 minutes, then add rust-preventive agent, adopt 600～800 turn divide and stir 5～8 minutes;

Step 5, will prevent dodging the rust agent and be dissolved in the residue deionized water, then add flow agent, membrane-forming agent, after stirring, add in step 4 gained solution, then add thickening material, stir.