Preparation method of Cr-Ce composite catalytic degradation architectural coating

Abstract

The invention discloses a preparation method of a Cr-Ce composite catalytic degradation architectural coating, the Cr-Ce composite catalytic degradation architectural coating is prepared from paraffin, an emulsifier, isophorone diisocyanate, polyethylene glycol, dibutyltin dilaurate, hydroxyethyl methacrylate, fly ash, chromium nitrate, cerium nitrate, alumina powder, and other raw materials, theCr-Ce composite catalytic degradation architectural coating is based on a waterborne polyurethane coating with excellent mechanical properties, fire resistance and low toxicity, the fly ash is respectively treated by an acid and an alkali to be used as a substrate to load a Cr-Ce composite oxide to provide a degradation space for organic pollution, adsorption and degradation types of organic matters are greatly increased, by combination of a paraffin emulsion, the problem of easy aggregation and precipitation of Cr-Ce composite supported zeolite can be solved, coating performance stability canbe ensured, the obtained architectural coating has excellent functions of adsorption, degradation and elimination of volatile organic compounds, the process is simple, the operation is convenient, raw material cost and processing cost both are low, and the application is wide.

Description

technical field [0001] The invention relates to the technical field of architectural coatings, in particular to a preparation method for Cr-Ce composite catalytic degradation architectural coatings. Background technique [0002] Volatile organic compounds (VOCs) refer to organic gases and liquids whose vapor pressure is greater than 70.91Pa at room temperature and whose boiling point in the air is below 260°C. According to statistics, after particulate matter and sulfur dioxide, volatile organic compounds have become the first Three atmospheric pollutants. It will have various impacts on the human body and the ecological environment. For example, most VOCs are toxic, foul-smelling, and some are carcinogenic, teratogenic, and mutagenic. It can indirectly affect human health and cause serious harm to the environment. [0003] With the development of modern science and technology, the increase in the number of urban buildings has increased the demand for architectural coating...

AI Technical Summary

Problems solved by technology

As a common adsorption raw material, zeolite usually needs to add silicon and aluminum chemical reagents to adjust the silicon-alumina ratio during its preparation and synthesis, and most of them need to add an organic template agent, but the synthetic zeolite is often a mixture of various crystal phases, and the purity is not too high. It also limits its use as an organic pollution adsorption matrix.