High-strength environment-friendly gypsum plaster board and preparation method thereof

Abstract

The invention discloses a high-strength environment-friendly gypsum plaster board and a preparation method thereof. The preparation method of the gypsum plaster board comprises the following steps: step 1, dissolving alum, a gel material and a foaming agent in deionized water to obtain a raw material A; uniformly mixing phosphogypsum, calcium carbonate, an adhesive and a water reducing agent to obtain a raw material B; adding the raw material B into the raw material A, and uniformly mixing to obtain a gypsum core layer material; step 2, respectively placing surface paper and bottom paper in the impregnation liquid, and carrying out impregnation treatment to obtain surface paper A and bottom paper A; 3, under the mold, the gypsum core layer material is poured on the bottom paper A, and the surface paper A is laid on the surface of the bottom paper A; after the wet plate is solidified, drying and forming; performing ultraviolet curing and high-temperature drying to constant weight to obtain the gypsum plaster board. According to the technical scheme, the gel material which is light, porous and good in heat insulation and sound insulation is prepared; and the light click reaction is utilized to inhibit the problems of viscosity reduction, strength reduction and the like caused by the addition of the gel material.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a high-strength environment-friendly gypsum board and a preparation method thereof. Background technique [0002] Paper-faced gypsum board is a kind of building board with building gypsum mixed with an appropriate amount of additives as the board core and special board paper as the protective surface; it has the advantages of light weight, no pollution, good heat insulation, and simple construction method. Internal partition walls of various buildings such as hospitals, residences, office buildings, shopping malls, etc. With the improvement of construction quality requirements in the construction industry in recent years, higher requirements have been put forward for the environmental protection, safety and durability of gypsum board. [0003] In the prior art, a large amount of water is generally added in order to enhance the fluidity of the slurry in the core layer ...

AI Technical Summary

Problems solved by technology

[0003]In the prior art, a large amount of water is generally added to enhance the fluidity of the slurry in the core layer, so that after evaporation, the water pores are many and large, and the core layer The cross-linking density between gypsum crystals is poor; at the same time, due to the poor interface between the protective paper and the board core, the final paper-faced gypsum board is brittle and low in strength

In addition, with the increase of construction requirements, more and more attention is paid to the heat insulation and sound insulation performance of gypsum board. In most cases, the sound insulation performance is enhanced by increasing the pores, but the generation of larger pores and the increase of pore volume , causing a decrease in strength

Of course, there are also gel materials with light weight, heat insulation and sound insulation to enhance the heat insulation and sound insulation of plasterboard; The problem of good quality will seriously affect the adhesion, resulting in a decrease in the strength of the board