Aqueous anti-rust paint with REPVDC aqueous resin emulsion and preparation method thereof

Abstract

The invention relates to an aqueous anti-rust paint with REPVDC aqueous resin emulsion and a preparation method thereof. The aqueous anti-rust paint includes: deionized water, an emulsifier, a wettingagent, a coupling agent, a defoamer, a sand abrasive, and an REPVDC emulsion. The preparation method includes steps of: a) according to the formula, stirring base materials in a dispersing machine; b) adding the sand abrasive and continuously stirring the mixture; c) adding the REPVDC emulsion and continuously stirring the mixture; d) adding a thickener and continuously stirring the mixture, reducing rotation speed, and naturally defoaming the mixture, and fill-packaging the finish product. The REPVDC emulsion has excellent properties including barrier property, adhesion force, coloring performance, wear-resistance, impact toughness, high film hardness, and storage stability. Content of VOCs is lower than 10 g / L. The aqueous anti-rust paint is very suitable for preparing an aqueous environment-friendly high-performance anti-rust paint (coating) for steel structures, is very excellent in anti-rust property which is far higher than the performances of oily paints. The indices of the aqueous anti-rust paint can reach European green environment-friendly paint (coating) standard, so that the aqueous anti-rust paint has good application prospect.

Description

technical field [0001] The invention belongs to the field of anti-rust paint, in particular to a water-based anti-rust paint using REPVDC water-based resin emulsion and a preparation method thereof. Background technique [0002] With the continuous improvement of people's quality of life, the awareness of environmental protection has also been continuously strengthened and valued. Governments around the world have listed environmental protection issues as a priority. Oily, high VOC content steel structure antirust paint (paint) is facing the "end of life", and needs to be replaced by environmentally friendly water-based steel structure antirust paint (paint). At present, water-based resins that can replace oil-based resins include acrylic water-phase polymerized emulsions, epoxy-based water-phase dispersed emulsions, polyurethane-based water-phase dispersed emulsions, etc. Among them, the VOC content of water-phase polymerized acrylic emulsions can be less than 10 g / L Howev...

AI Technical Summary

Problems solved by technology

At present, water-based resins that can replace oil-based resins include acrylic water-phase polymerized emulsions, epoxy-based water-phase dispersed emulsions, polyurethane-based water-phase dispersed emulsions, etc. Among them, the VOC content of water-phase polymerized acrylic emulsions can be less than 10 g / L , but the VOC of epoxy and polyurethane aqueous dispersion emulsion is less than or equal to 200 g / l, if the EU's environmental protection water-based paint (paint) VOC <80 g / l is implemented, a considerable part of the existing water-based resins will be eliminated

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