High-gloss high-hardness water-based epoxy floor coating and preparation method thereof

Abstract

The invention belongs to the technical field of coatings and relates to a high-gloss high-hardness water-based epoxy floor coating and a preparation method thereof. The coating comprises a component Aand a component B. The component A is a water-based emulsion prepared from liquid epoxy resin, polyfunctional epoxy resin, hydrophilic modified polyfunctional epoxy resin and first deionized water; the component B is prepared from a water-based epoxy curing agent, second deionized water, a pigment filler, a dispersing agent, an antifoaming agent, a leveling agent, a scratch-resistant auxiliary agent and color paste. By compounding the modified polyfunctional epoxy resin, the scratch-resistant assistant and the pigment filler, the prepared floor coating has the advantages of favorable levelingproperty, high curing speed, high film crosslinking density, high bonding strength, low shrinkage rate during hardening and low tendency to flooding during construction. When coating film formation is performed, the hardness and gloss of a coating layer are high; the whole coating layer is seamless and flat, not prone to cracking and easy to clean; the probability of bubbles appearing on a water-resistant surface is low; and the environmental protection requirements are met.

Description

technical field [0001] The invention relates to the technical field of coatings, in particular to a water-based epoxy floor coating with high gloss and high hardness and a preparation method thereof. Background technique [0002] At present, the floor paint products on the market are mainly oily, containing a large amount of benzene, toluene, xylene, free TDI, heavy metals and other substances harmful to the human body and the environment. With the improvement of people's living standards and the increasing environmental protection issues Attention, the development of new environmentally friendly floor paint has become a trend. One type of solvent-free epoxy floor paint does not contain volatile organic compounds (VOC), but the thinner used has certain toxicity and high cost. The non-solvent epoxy self-leveling floor paint that can make up for this shortcoming, It can form a coating film with a smooth surface and has a beautiful appearance, but it is not anti-skid, and it i...

AI Technical Summary

Problems solved by technology

One type of solvent-free epoxy floor paint does not contain volatile organic compounds (VOC), but the thinner used has certain toxicity and high cost. The non-solvent epoxy self-leveling floor paint that can make up for this shortcoming, It can form a smooth surface coating film with a beautiful appearance, but it is not anti-skid, and it is not suitable for the anti-skid requirements of parking lots and goods, that is, its safety is poor, especially in rainy days, and the safety hazard is very obvious

[0003] In comparison, water-based epoxy floor paint uses water as the dispersion medium and does not contain VOC. It almost retains the advantages of oil-based epoxy floor paint and solvent-free epoxy floor paint, and has good construction, storage, transportation and use. It is safe and cheap, but the film-forming speed of the water-based floor paint used on the floor surface is extremely slow, the construction time is long, the labor cost is high, the construction comprehensive cost is high, the quality of the coating film is poor, the hardness is poor, and the acid and alkali resistance and solvent resistance are poor. Short term, generally only 3-5 years

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