Preparation method of water-based composite resin liquid for high-strength high-toughness waterproof coating

Abstract

The invention discloses a preparation method of water-based composite resin liquid for a high-strength high-toughness waterproof coating. The preparation method comprises the following steps: S1, selecting water-soluble resin for compounding, and selecting water-soluble resin with different hardness, different molecular weights and higher polarity. The water-soluble resin for compounding is selected and the water-soluble resin with different hardness, different molecular weights and higher polarity for compounding is selected to form water-based composite resin liquid. The resin molecules arecomplementary in hardness and mutual-capacitance plasticization and have the action of polar hydrogen bonds among the molecules, the composite resin coating material has high mechanical strength, hightoughness and proper elasticity. The selected low-molecular-weight resin molecules can permeate into cement, wood and other base materials, the adhesive force of the waterproof coating material is improved, the waterproof leakage performance of the base material is improved while the waterproof leakage performance of the coating is formed, namely, the dual waterproof leakage effect of the coatingand the base material is formed, the waterproof leakage effect is improved and the service life of the waterproof coating is greatly prolonged.

Description

technical field [0001] The invention belongs to the technical field of high-strength and high-toughness waterproof paint production, and specifically relates to a method for preparing a water-based composite resin liquid for high-strength and high-toughness waterproof paint. Background technique [0002] One is to use asphalt and asphalt-modified ointment. The asphalt needs to be smelted on the construction site and then cast to form a waterproof seepage layer, while the asphalt-modified ointment can be directly painted to form a waterproof seepage layer. This method has great pollution to the environment. Because it needs on-site refining, the construction is inconvenient, and it is very harmful to the health of the construction workers. The waterproof layer is easy to age, easy to form cracks and cracks, and local uneven thickness will be formed in the waterproof layer. Therefore, the waterproof effect of the waterproof seepage layer is poor, and water leakage will occur i...

AI Technical Summary

Problems solved by technology

At present, acrylate and acrylate-modified polymer emulsions are mainly used as base materials for waterproof leakage coatings at home and abroad to make waterproof leakage coatings. Water-soluble polyurethane waterproof coatings are also used. Due to the single composition of the coating resin, either The formed coating material has insufficient toughness and elasticity, or its mechanical strength is not strong enough, its ability to withstand stress changes is not strong, and it cannot adapt to the use environment of alternating cold and hot, and the coating is prone to scratches, cracks, cracks, and even bursting of the waterproof layer phenomenon, thus causing water leakage; for this reason, the inventor proposed a method for making a water-based composite resin solution for high-strength and high-toughness waterproof coatings based on various factors.

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