Environment-friendly interior wall putty powder and putty paste and preparation method thereof

Abstract

The invention discloses an environment-friendly interior wall putty powder and putty paste and a preparation method thereof. The putty powder includes the following components in parts by weight: 45-72 parts of talcum powder, 18-30 parts of heavy calcium carbonate, 5-10 parts of calcium-based bentonite, 0.6-1.5 parts of sodium carboxymethyl cellulose, 1-5 parts of polyacrylamide, 0.3-1.7 parts of hydroxyethyl cellulose; 0-20 parts of building gypsum powder, carboxymethyl cellulose 0-0.8 parts, 0-8 parts of α-pregelatinized starch, 0-3 parts of hydroxypropyl methylcellulose, and 0-0.5 parts by weight of sodium dodecylbenzenesulfonate. The preparation method of the putty powder is to mix the above-mentioned components evenly, and then discharge after stirring for 10-15 minutes. Add 0.3 to 0.5 times the weight of the putty powder and water into the putty powder and stir evenly to obtain the putty paste. The putty powder / putty paste of the present invention does not contain or only contains a small amount of formaldehyde, and the content of heavy metal elements is extremely low, which belongs to the green environmental protection product; it has excellent impact resistance, excellent hydrophobicity and water resistance, high elasticity, and good crack resistance performance, storage stability and easy construction.

Description

technical field [0001] The invention belongs to the technical field of wall surface decoration materials, and is a decorative gel material for construction, in particular to an environment-friendly putty powder and putty paste, and a preparation method thereof. Background technique [0002] Interior wall putty is a kind of decorative gel material for leveling the surface of the wall. It is used to fill the gaps in the wall and repair the uneven defects on the painted surface, so that the paint or lacquer can be applied on the wall to form a smooth and smooth surface. Uniform paint film. Since interior wall putty is widely used and can be used in many different places, the required functional requirements vary according to the place of use. Thereby, existing invention patent about interior wall putty. The main ones are as follows: [0003] In terms of water-resistant interior wall putty powder, CN1228399C discloses a kind of water-resistant putty powder, which is prepared ...

AI Technical Summary

Problems solved by technology

[0007] Among the above-mentioned interior wall putty powders, some are for improving water resistance, and some are for the functions of adsorption and health care. The former is easy to hollow, peel and crack, while the latter has low bonding strength, poor adhesion and poor water resistance.

In terms of the preparation of environmentally friendly putty, the formula and process procedures are complicated, and it contains raw materials that are chemically unstable, prone to yellowing and black spots

[0008] Most of the known interior wall putties in our country are prepared from materials such as talc powder, double fly powder, carboxymethyl cellulose and polyvinyl formal adhesive (107 glue). Although the cost of raw materials is low, the process is complicated and the overall cost is high. , especially containing harmful substances such as formaldehyde, which have a great impact on the human nervous system, especially infants and the elderly and infirm, are more harmful, and even cause serious diseases

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