Gradient functional polymer cement waterproof coating, waterproof coating and preparation method thereof
A technology of waterproof coatings and gradient functions, applied in coatings, lime coatings, etc., can solve the problems of poor coating performance indicators at the interface, poor bonding strength and water resistance, poor continuity and integrity of the waterproof layer, etc., to achieve Good continuity and integrity, good bond strength, high bond strength effect
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[0052] The present invention also provides a kind of preparation method of waterproof coating, and this preparation method comprises the following steps:
[0053] The first step provides the above-mentioned gradient functional polymer cement waterproof coating;
[0054] In the second step, by weight, mix 8.1-9.9 parts of polyvinyl acetate emulsion, 2.7-3.3 parts of chloroether resin, 14.4-17.6 parts of acrylic emulsion, 2.7-3.3 parts of additives, and 14.4-17.6 parts of water to obtain the first For the liquid material, add 30.6-37.4 parts of cement in sequence to the first liquid material, stir to obtain the first coating slurry, coat the first coating slurry on the surface of the base layer, and solidify to obtain the bonded base layer.
[0055] Specifically, firstly, after weighing the polyvinyl acetate emulsion, chloroether resin, acrylic emulsion, additives, and water respectively, they are sequentially added to the stirring tank, and at room temperature, at a stirring ra...
Embodiment 1
[0070] The raw materials for bonding the bottom layer are shown in Table 1, the raw materials for the waterproof functional layer are shown in Table 2, and the raw materials for the facing transition layer are shown in Table 3.
[0071] In this embodiment, the additives are preservatives, water reducers, defoamers, and thickeners, wherein the weight ratio of preservatives, water reducers, defoamers, and thickeners is 0.43:0.2:0.27 :0.1.
[0072] The preparation process of waterproof coating comprises the following steps:
[0073] The first step is to prepare the bonding bottom layer: first, measure and weigh polyvinyl acetate emulsion, chloroether resin, acrylic emulsion, additives, and water respectively, and add them to the stirring tank in sequence. Under the stirring speed of / min, stir 10min, obtain uniform first liquid material. Then measure and weigh Portland cement, and slowly add it to the first liquid material, and continue stirring for 10 minutes at a stirring rat...
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