A kind of attapulgite/diatomite-based environmental protection interior wall material with coordination function

Abstract

The invention discloses an attapulgite / diatomite-based environment-friendly indoor wall material with a coordination function. A preparation method of the indoor wall material comprises the following steps: preparing mixed powder from 20-50% of attapulgite, 20-50% of diatomite, 10-15% of TiOSO4 powder and 10-15% of ZnSO4 powder in mass ratio, adding water into the mixed powder according to liquid-solid ratio of (30-40):1, and stirring; slowly dropwise adding diluted ammonia water into solution, and regulating pH value to be 5-7; filtering precipitates, washing with water, and drying; calcining a dried product for 2-3 hours at the temperature of 450-550 DEG C. Filler comprises ground calcium carbonate, ash calcium powder, calcined kaolin and silica sand; and auxiliaries comprise a thickening agent, wood fiber, dispersible rubber powder, a thixotropic lubricating agent and a water reducing agent. A hydrolysis precipitation method is adopted for preparing nano TiO2 and nano ZnO, and the nano TiO2 and nano ZnO are loaded on the surface of attapulgite and diatomite, so that a composite functional material is obtained; then the composite functional material is mixed with the filler and the auxiliaries, so that the environment-friendly indoor wall material is obtained, the problem that agglomeration of the nano TiO2 and nano ZnO in the environment-friendly indoor wall material is serious is solved, and all the components intercoordinate and promote each other among humidity adjusting, antibacterial and air purifying functions.

Description

technical field [0001] The invention discloses an attapulgite / diatomite-based environmental protection indoor wall material with coordination function, which belongs to the technical field of indoor building materials. Background technique [0002] With the improvement of people's living standards and the enhancement of health and environmental protection awareness, the quality of indoor living environment has been paid more and more attention. In the process of interior wall decoration, people choose wall materials not only to pay attention to the beautiful decoration, but also to pay attention to the harmlessness and functionality of materials. Among them, natural mineral-based environmentally friendly indoor wall materials with multiple functions are becoming more and more popular. preferred. At present, the functions of natural mineral-based environmentally friendly indoor wall materials mainly focus on the three major functions of humidity control, air purification, an...

AI Technical Summary

Problems solved by technology

Due to the positively large specific surface and high surface free energy of nano functional powders, they are in a state of unstable energy, and are very easy to agglomerate into large particles for the second time, thus affecting the normal performance of their corresponding functions.

In the mixing process of dry powder, due to the limited stirring force and depth, the dispersion of nano-functional powders is relatively difficult, and there are a lot of agglomeration phenomena, which not only reduces the functionality of environmentally friendly indoor wall materials, but also seriously wastes expensive nano-functional powders. Powder

Usually, in order to achieve a certain degree of functional effect, it is often necessary to add an excessive amount of nano-functional powder, resulting in a substantial increase in product cost

In addition, there is another phenomenon that needs to be paid attention to. During the use of environmentally friendly indoor wall materials, because nano-functional powders are not firmly combined with other large-particle components, they are easily scraped by external forces and wind. It falls off, and the nano functional powder particles are extremely fine and difficult to settle, floating in the air for a long time, if inhaled into the human body, it will cause certain harm to health