Building internal wall waterproof formaldehyde-removing coating applied to indoor environment as well as manufacturing method thereof

Abstract

The invention discloses a building internal wall waterproof formaldehyde-removing coating applied to an indoor environment as well as a manufacturing method thereof. The waterproof formaldehyde-removing coating comprises three parts, namely a component A, a component B and a component C, wherein the component A is prepared by putting sawdust and green straws under the comprehensive action of cellulase, pectinase and diluted hydrochloric acid to obtain a viscous solution, performing high-temperature sterilization, performing neutralizing treatment by using alkali in an amount which is smaller than that of acid and finally implanting bacillus thuringiensis to cultivate; the component B is obtained by suspending an activated carbon micropowder, a 1000-mesh ash calcium powder and a 1000-mesh triple superphosphate powder into absolute ethanol; and the component C is formed by performing enzymolysis and alcohol washing on the sawdust and the green straws and dehydrating the remaining by using the cellulose taking lignin as a main material. The building internal wall waterproof formaldehyde-removing coating has a spontaneous respiration like property, a durable formaldehyde-removing effect and high removing depth, is green, pollution-free and water-resistant, and can consume water.

Description

technical field [0001] The invention relates to the field of environmental protection coatings, in particular to a waterproof and formaldehyde-removing coating for building inner walls applied to indoor environments and a manufacturing method thereof. Background technique [0002] Formaldehyde (HCHO), also known as formaldehyde, has strong carcinogenic and cancer-promoting effects. At present, the most harmful thing to the masses is the inevitable formaldehyde adhesive for interior decoration. [0003] At present, the methods of controlling formaldehyde pollution mainly include chemical reaction methods, physical adsorption technology, ozone negative ion technology, nano photocatalysis technology, low temperature plasma technology, plant purification and biodegradation and other methods. However, a large number of repeated use of chemical reaction method will cause new secondary pollution; physical adsorption method requires power and consumes a lot of energy; ozone oxidatio...

AI Technical Summary

Problems solved by technology

However, a large number of repeated use of chemical reaction method will cause new secondary pollution; physical adsorption method requires power and consumes a lot of energy; ozone oxidation method is ineffective for inorganic substances, and at the same time toxic by-products are harmful to human body when the ozone concentration is too high; nano photocatalysis The low-temperature plasma method has low efficiency and unstable performance; the low-temperature plasma method consumes a lot of power and has a short action time, and needs to be treated irregularly; the plant purification method is placed too much, and the carbon dioxide concentration in the room is too high at night, which affects health; currently The biodegradation method adopted mainly adopts the method of multi-strain mixed degradation, and the complex relationship between strains also creates certain obstacles for strain cultivation and improvement of degradation efficiency.

[0004] The patent "A Method for Degrading Formaldehyde Using Microbes" (document number CN 101591072 B) in the prior art provides a microorganism of the genus Bacillus thuringiensis that efficiently degrades formaldehyde, but there is no corresponding application ecology, so there is no actual wide application. Therefore, the current waterproof and formaldehyde-removing coatings are limited by the lack of technical field and practical experience, and the waterproof and formaldehyde-removing coatings for interior decoration in a complete sense have not really appeared. Waterproof and formaldehyde-removing coating with long-lasting effect, high removal depth, green and pollution-free, water-resistant, and self-consumable water