Water-based isolated coating for pre-paved and wet-paved waterproof coiled materials as well as preparation method of coating

Abstract

The invention discloses water-based isolated coating for pre-paved and wet-paved waterproof coiled materials as well as a preparation method of the coating. The water-based isolated coating for the pre-paved and wet-paved waterproof coiled materials comprises the following components in percentage by mass: 10 to 30 percent of modified acrylic ester copolymer emulsion, 5 to 10 percent of polyvinylalcohol, 10 to 40 percent of crystallization masterbatch, 5 to 20 percent of pigment filler, 0.5 to 1 percent of silane coupling agent, 0.1 to 1 percent of a dispersant, 0.1 to 1 percent of a thickening agent, 0.1 to 0.5 percent of a defoaming agent, 0.1 to 0.5 percent of a leveling agent and 10 to 40 percent of water. The water-based isolated coating for the pre-paved and wet-paved waterproof coiled materials, which is provided by the invention, can be applied to isolated protection of the pre-paved anti-adhesion waterproof coiled material and also can be applied to isolated protection of thewet-paved waterproof coiled material, the production and use processes are environmentally friendly and safe, the waterproof coiled materials are not liable to adhesion return, construction is simpleand convenient, and excellent water tolerance, acid and alkali corrosion resistance, heat ageing resistance and ultraviolet ageing resistance are achieved.

Description

technical field [0001] The invention relates to the field of waterproof materials, in particular, the invention relates to a water-based isolation coating for pre-laying wet-laid waterproof coiled materials and a preparation method thereof. Background technique [0002] With the advancement of technology, the old-fashioned waterproof membrane is gradually replaced by a new product. As emerging products, wet-laid self-adhesive waterproof membrane and pre-laid anti-adhesive waterproof membrane have become more and more widely used in construction applications in recent years because of their construction methods. Safer and more environmentally friendly, with better waterproof effect. However, at present, the traditional domestic wet-laid waterproofing membrane and pre-laid waterproofing membrane still face some technical difficulties. For example, wet-laid waterproofing membrane generally needs to be covered with a layer of anti-adhesive film on the self-adhesive layer, which ...

AI Technical Summary

Problems solved by technology

However, at present, the traditional domestic wet-laid waterproofing membrane and pre-laid waterproofing membrane still face some technical difficulties. For example, wet-laid waterproofing membrane generally needs to be covered with a layer of anti-adhesive film on the self-adhesive layer, which needs to be uncovered during construction. Laying on the side of the mucous membrane requires a large number of construction workers, and the construction is cumbersome; pre-paved waterproof membrane products generally use inorganic particles as the isolation layer, and the combination of inorganic particles and pressure-sensitive adhesive is weak, and it is easy to appear in the process of construction and application. The sand phenomenon, and the inorganic particles cannot completely cover the pressure-sensitive adhesive layer, resulting in the direct exposure of the pressure-sensitive adhesive to the air, which is easily oxidized or corroded by oxygen in the air or oxidized or corrosive substances in the water body, and damaged by ultraviolet rays in the sun, resulting in Pressure Sensitive Adhesives Degrade Dramatically Over Time

At present, there have been reports at home and abroad that water-soluble coatings are used instead of ordinary isolation membranes for wet laying and pre-laying waterproof membranes. However, due to the use of water-soluble coatings, this type of product waits for pouring after production, transportation, storage and construction. The concrete cannot touch water during the cycle, and the bond strength is not enough. These restrictive factors greatly reduce the application and promotion of this product.

Images