Water industrial antirust paint and preparation method thereof

Abstract

This invention relates to a aquosity industry anti-rust paint and its preparation method. According to weight it includes 8 to 11% aquosity acroleic acid modified epoxy, 33 to 40% acroleic acid latices, 0.1 to 0.3% defoamer, 0.05 to 0.15% wetting agent, 0.3 to 0.5% dispersant, 0.3 to 0.5% rust-resistant agent, 7.5 to 9% iron oxide red, 6 to 8% French chalk, 5 to 10% modified zinc phosphate, 2.5 to 10% trimerization aluminum phosphate, 3 to 3.5% precipitated baryte , 0.5 to 1% zinc oxide, 3 to 5% mica ferric oxide, alcohol ester twelve 1 to 2%, triethanolamine 1 to 2%, thickening agent 0.3 to 0.6%, preservative 0.05 to 0.1%, 5 to 20% de-ionized water, through pretreatment, color paste preparation and blending and adjusting to gain product.

Description

technical field [0001] The invention belongs to coating technology, and in particular relates to a water-based industrial antirust paint which can be used for coating steel materials and a preparation method thereof. Background technique [0002] The thinners used in traditional antirust paints are volatile organic solvents, such as gasoline, toluene, xylene, etc., to help form a coating film. This kind of organic solvent not only wastes resources, pollutes the environment, but also brings pollution to production and construction sites. Hazards such as fire, explosion, etc. This kind of paint must remove the rust on the metal surface before construction, which takes a lot of time and has poor effect. Patent Application No. 02146649.1 discloses an environmentally friendly self-crosslinking water-based self-drying paint for anticorrosion on the surface of ferrous metal substrates, which contains: (a) the water-based carrier medium is deionized water, pH: 8-9, accounting for 4...

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Problems solved by technology

[0002] The thinners used in traditional antirust paints are volatile organic solvents, such as gasoline, toluene, xylene, etc., to help form a coating film. This kind of organic solvent not only wastes resources, pollutes the environment, but also brings pollution to production and construction sites. Hazards such as fire, explosion, etc.

This kind of paint must remove the rust on the metal surface before construction, which is time-consuming and the effect is not good

Patent Application No. 02146649.1 discloses an environmentally friendly self-crosslinking water-based self-drying paint for anticorrosion on the surface of ferrous metal substrates, which contains: (a) the water-based carrier medium is deionized water, pH: 8-9, accounting for 40-60% of the total % (weight); (b) pure polymer accounts for the total amount of non-volatile matter 30-40% (weight) in the aqueous dispersion self-emulsifying acrylic acid modified epoxy polyester polymer; (c) solid pigment, filler account for the total amount Non-volatile matter 54-68% (weight); (d) auxiliary agent accounts for total non-volatile matter 5.6-7.6% (weight). This water-based paint has the problems of flash rust and early rust, and most of the paint films of similar products are Open structure, easy to make O in the environment 2 and H 2 O Through the paint film, the base material can be reached to cause rust, and there are defects such as slow drying, poor adhesion, poor hardness, high VOC content and excessive heavy metal ions in water-based paint

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