Advantages and application prospects of water-based epoxy resin coatings

” >Water-based epoxy resin means that epoxy resin is dispersed in the form of particles or droplets in a dispersion medium with water as the continuous phase. A well-deserved stable dispersion system. Since epoxy resin is a thermosetting resin with a linear structure, a water-based epoxy curing agent must be added before construction. A chemical cross-linking reaction occurs at room temperature. After curing, the epoxy resin changes its original soluble and fusible properties. It forms an insoluble and infusible spatial network structure, showing excellent performance.

” >Water-based epoxy resin coatings not only have many advantages of solvent-based epoxy resin coatings:

” >With reasonable selection of epoxy resin base materials, curing agents, and various modifiers and additives,water-based epoxy resins with different properties can be prepared Paint. The many performance characteristics of water-based epoxy resin coatings determine that they have wider application prospects than solvent-based or solvent-free epoxy resin coatings. The current applications of water-based epoxy resin coatings mainly include the following aspects:

” >First, floor coating can be used as a high-end Performance environment-adaptive floor coatings replace solvent-based epoxy resin coatings, and can also be mixed into cement mortar as a polymer component to make high-performance polymer mortar floor materials;

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” >The second is wooden floor paint, which can be formulated into varnish for wooden floors, replacing the solvent-based polyurethane crystal floor paint currently widely used on the market, and can be substituted into colored paint. Solvent-based epoxy resin and polyurethane enamel, used in kitchens, furniture and mechanical equipment;

” >The third is the anti-permeability of construction projects. With the excellent mechanical properties and good compatibility with cement, water-based epoxy resin coatings are used to prepare high-strength concrete. Among them, water-based epoxy resin coatings Added to concrete or cement mortar as an auxiliary component, and can improve the impermeability of concrete;

” >Fourth is building bonding and waterproofing, using epoxy resin‘s good bonding properties to cement materials and many organic materials as well as the epoxy resin itself Excellent mechanical properties and chemical resistance as concrete adhesive and waterproofing plugging material;

Fifth, anti-corrosion treatment and other uses, use The excellent corrosion resistance of epoxy resin can be used as an anti-corrosion coating as an anti-corrosion primer for steel and ships. It can be used in conjunction with other general-purpose emulsions such as polyacrylic acid emulsion and water-based polyurethane to achieve a synergistic effect to obtain coatings with different properties.

” >The main component of silica powder is silica, which has good chemical insulation, excellent electrical insulation, large powder specific surface area, good suspension, and thermal expansion The coefficient is small and it can mix various types of epoxy resins evenly without stratification. It reduces shrinkage during curing, reduces the internal stress of components, and prevents cracking. Silica powder has high hardness and good thermal conductivity, and is widely used in coatings.

” >Qichen New Material Silica Micro Powder is non-toxic and odorless , high whiteness, strong hardness, smooth and spherical particles, resistance to cold and heat shock, acid and alkali corrosion resistance, high insulation, low expansion, and stable chemical properties. Used in floor paint, it can improve the hardness, scratch resistance and leveling performance of the paint film. It has the advantages of high filling volume, good fullness of the paint film and good hue. Customers of non-toxic epoxy toughened coatings added silica powder to epoxy resin and successfully developed non-toxic epoxy toughened coatings with anti-corrosion functions, overcoming the problems of brushing and spraying existing coatings at low temperatures. Defects and shortcomings.