Solvent-free epoxy joint mixture and preparation method thereof

Abstract

The invention discloses a solvent-free epoxy joint mixture and a preparation method thereof. The solvent-free epoxy joint mixture is composed of a component A and a component B, wherein the componentA comprises 10-50% of solvent-free epoxy resin, 50-90% of a pigment filler, 0-20% of talcum powder and 0-20% of calcium powder, and the component B comprises 0-99% of a solvent reaction type emulsifier epoxy curing agent, 0-99% of a solvent-free epoxy curing agent and 0-5% of anhydrous acetic acid.

Description

technical field [0001] The invention relates to an epoxy caulking agent, in particular to a solvent-free epoxy caulking agent and a preparation method thereof. Background technique [0002] The caulking agent is used to fill the reserved gaps during the installation of ceramic tiles, stone materials, mosaics, etc., and to beautify the reserved seams of surface material decoration projects such as ceramic tiles, stone materials, and mosaics. Therefore, it has been widely used in residences, hotels, shopping malls, hospitals, factories and other occasions. Traditional sealants are generally white cement or cement-based sealants. This type of caulking agent has been widely used for many years due to its simple and easy-to-obtain raw materials, low cost, and easy use. However, because this kind of caulking agent is easy to crack, poor waterproof, easy to seep water, not resistant to stains, easy to mold, etc., it has been gradually replaced by resin-based caulking agents. The...

AI Technical Summary

Problems solved by technology

[0006] Although the water-based system itself is environmentally friendly, its solid content (the mass ratio of the material after it is completely dried to that before drying) is difficult to achieve 100%

The reduction of solid content will cause the sealant system to solidify and dry completely, and the evaporation of water will easily cause the sealant to shrink, collapse, crack, etc., which will affect the use and appearance of the sealant

On the other hand, the residual hydrophilic groups after the resin is water-based will have a certain degree of adverse effects on the water resistance and chemical resistance of the later materials.

[0007] More importantly, the emulsifier in the sealant in the prior art is prone to migration during the subsequent scrubbing process after the construction of the sealant in the prior art, so that problems such as air bubbles, sticky sponges, and whitening may occur

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