Surface defoamer mother liquor and surface defoamer for inorganic decorative boards

Abstract

The invention discloses a surface antifoaming agent mother liquor for inorganic decorative plate and a surface antifoaming agent. The provided surface antifoaming agent mother liquor is prepared by compounding the following components in parts by weight: 26 to 42 parts of fatty acid methyl ester ethoxyl compound, 15 to 28 parts of isomeric alcohol ether, 0.1 to 0.3 part of polyether modified organic silicon, and 21.7 to 55.9 parts of clear water. The provided surface antifoaming agent is prepared by compounding the following components in parts by weight: 1.95 to 3.6 parts of surface antifoaming agent mother liquor, 0.48 to 3.6 parts of sulfates, and 92.8 to 97.57 parts of clear water. The surface foaming removing method comprises following steps: adopting the provided surface antifoaming agent, and spraying the surface antifoaming agent on the surface or into the inner cavities of a decorative plate moulding die through modes of painting, brushing, rolling, or air spray coating. The surface antifoaming agent mother liquor and surface antifoaming agent can be used to eliminate foams on the decorative surface of inorganic decorative sheets (calcium alginate base, gypsum bas, cement base, or the like) and are capable of quickly, stably, and radically removing the foams.

Description

Technical field [0001] The invention relates to a defoaming technology for the surface of an inorganic decorative board, which belongs to the field of fine chemical additives. Background technique [0002] In inorganic decorative boards, algae calcium-based, gypsum-based, cement-based, algae-calcium ecological decorative boards, high-strength crystal decorative gypsum boards, pre-injected glass fiber reinforced gypsum composite materials (GRG), cement-based decorative boards such as Glass fiber cementitious composite materials (GRC) and inorganic mineral-based low-temperature ceramic boards (CBC) are cast or pressed or extruded or sprayed with inorganic cementing materials at room temperature. Because of its excellent plasticity and flexibility, it can form geometric shapes such as single-curved, double-curved, and three-dimensional cladding, as well as artistic shapes such as hollow patterns, embossed patterns, and nonlinear shapes. In addition to plastic decorative expressiven...

AI Technical Summary

Problems solved by technology

[0003] One of the industry problems that has always existed in the application of inorganic decorative boards is: In order to improve production efficiency and product strength, the production process has been converted from manual stirring to semi-automatic stirring, or even continuous stirring, so that the slurry entrains air during the stirring process. It contains a lot of air bubbles. In addition, adding fiber reinforcement and increasing the viscosity of the cementitious material in the general technology also reduces the fluidity of the slurry. These two aspects cause the slurry to enter the forming mold. The role of tension, when the self-generated fluidity of the slurry is not enough or in the vibration mode is not enough to destroy the tension, pores or defects remain on the local interface, and whether there are pores or micropores on the surface of the product that affect the decorative effect is the aforementioned application product The primary appearance quality of

At present, some manufacturers in the industry are limited to manual low-speed stirring, mold dropping, and base slurry coating on the surface of the mold, forming vicious production modes such as high labor intensity and slurry splashing in the operating environment

Another part of the manufacturers use spraying silicone emulsion and vibration process to defoam, on the one hand, there is a defect of slow defoaming speed, which is not suitable for quick-setting gelling materials, and the addition of tributyl phosphate defoaming agent will cause It will erode the surface texture and make the surface of the product easy to pulverize; on the other hand, the requirement for the fluidity of the slurry is high, and the defoaming effect is extremely unstable. 80%, a lot of manpower is needed to select and repair in the later stage

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