Waterproofing agent for desulfurization gypsum block

Abstract

The invention relates to a waterproofing agent for a desulfurization gypsum block, and the waterproofing agent mainly comprises stearic acid, polyvinyl alcohol, cement, borate, semi-hydrated gypsum, accelerants, cross-linking agents, and the like. The waterproofing agent for the desulfurization gypsum block, which is disclosed by the invention, can change the structure of holes, pores and capillary holes which are positioned in the surface inside a gypsum product so as to change the surface from a hydrophilic surface to a hydrophobic surface, thereby preventing the moisture from invading and achieving the characteristics of waterproofing and the like.

Description

technical field [0001] The invention relates to a waterproofing agent for desulfurized gypsum blocks, which belongs to the field of building materials. Background technique [0002] As one of the main building cementing materials, gypsum has an irreplaceable role, but its poor waterproof performance affects its scope of use. At present, the main methods to improve the waterproof performance of gypsum hardened body are: adding waterproof materials to the gypsum slurry , to form a waterproof layer on the surface of the internal particles of the hardened gypsum body, such as adding bitumen stearic acid to the gypsum, and spraying the hydrophobic material directly on the surface of the hardened gypsum body to form a water-repellent layer on the surface of the product. Improving the short-term waterproof performance of gypsum has a good effect, but its waterproof mechanism is to directly infiltrate a single material into the product, but the long-term waterproof effect cannot be ...

AI Technical Summary

Problems solved by technology

[0002] As one of the main building cementing materials, gypsum has an irreplaceable role, but its poor waterproof performance affects its scope of use. At present, the main methods to improve the waterproof performance of gypsum hardened body are: adding waterproof materials to the gypsum slurry , to form a waterproof layer on the surface of the internal particles of the hardened gypsum body, such as adding bitumen stearic acid to the gypsum, and spraying the hydrophobic material directly on the surface of the hardened gypsum body to form a water-repellent layer on the surface of the product. Improving the short-term waterproof performance of gypsum has a good effect, but its waterproof mechanism is to directly infiltrate a single material into the product, but the long-term waterproof effect cannot be achieved due to the influence of the climate environment