Flexible mildew-proof waterproof putty powder and preparation process thereof

Abstract

The invention belongs to the technical field of building materials, and relates to flexible mildew-proof waterproof putty powder and a preparation process thereof. The putty powder comprises heavy calcium powder, ash calcium powder, gypsum, epoxy resin, common talcum powder, low-oil-absorption talcum powder, a diluent, rubber powder, starch, bamboo fibers, lignocellulose, hydroxy propyl cellulose, a drier and a mildew preventive. The preparation process comprises the following steps: material preparation, slurry mixing, powder slurry preparation, putty powder production completion and putty powder detection and packaging, wherein during slurry mixing, the heavy calcium powder, the ash calcium powder, the gypsum, the common talcum powder and the epoxy resin are dispersed in the low-boiling-point organic solvent, the rubber powder, the starch, the bamboo fibers, the lignocellulose, the hydroxy propyl cellulose, the low-oil-absorption talcum powder, the drier and the mildew preventive are dispersed in another group of low-boiling-point organic solvents and then mixed with one another. The putty powder is good in mildew-proof and antibacterial performance, easy to push away and good in flowability; the connection strength between the putty is high, and the putty is not easy to crack and does not peel; the preparation method is simple and easy to operate, and the powder is good in dispersity.

Description

technical field [0001] The invention belongs to the technical field of building materials, and in particular relates to a flexible anti-mildew and water-resistant putty powder and a preparation process thereof. Background technique [0002] Putty powder is a building decoration material, the main components are ordinary talcum powder and glue, which is used as the base material for wall repair and leveling, laying a good foundation for the next decoration. According to different areas of use, putty is divided into two types: interior wall and exterior wall. Among them, exterior wall putty requires high gelatinity, high strength, and low environmental protection index requirements; interior wall putty requires a good comprehensive index, which is healthy and environmentally friendly. According to the integrity of the putty, it is divided into non-finished putty and finished putty. The non-finished putty has no fixed packaging and no unified standard, and its quality depends o...

AI Technical Summary

Problems solved by technology

Chinese invention patent application CN105273474A provides an anti-mold and anti-bacterial putty powder and its use method, which is formed by mixing the main material, adhesive material and anti-mold and anti-bacterial material according to the weight ratio of 3:1:1, and the main anti-mold and anti-bacterial It is a mixture of titanium dioxide, zinc oxide, cadmium sulfide, tungsten oxide, sodium diacetate, tin oxide and ferric oxide. Its components are complex and contain a large amount of various metals. It is prepared and used immediately and cannot meet the requirements of simple construction. Requirements: This kind of putty needs to wait for a long time to dry before proceeding to the next step after use, and the construction period is long. If the putty cannot be completely dried, mildew will still occur on the wall surface after decoration; Chinese invention patent application CN113045926A provides an environmentally friendly High-strength water-resistant putty powder, the putty powder is composed of heavy calcium powder, gray calcium powder, methyl cellulose, composite rubber powder, hydroxypropyl methyl cellulose, wood cellulose, super absorbent resin and natural resin. The water resistance of the putty powder is enhanced, but it also increases the sticking time of the putty to the wall, and it is difficult to push away, and the fluidity is poor; in addition, after the putty of the prior art is combined with the wall, when the next step of decoration is carried out, such as to the wall During the process of nailing and other decorations inside the body, the wall skin formed by the putty powder is easy to crack, and there are many cracks, which affects the appearance, and the waterproof and mildew resistance performance is reduced

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