Environment-friendly, waterproof and thermal-insulating dry powder coating for exterior walls and roofs and preparation method of coating

Abstract

The invention discloses an environment-friendly, waterproof and thermal-insulating dry powder coating for exterior walls and roofs and a preparation method of the coating and aims to solve the problems of poor weather fastness, anti-ultraviolet performance and thermal insulation effect. The product is prepared from raw materials in parts by weight as follows: 28-30 parts of cement, 4.5-5.6 parts of sericite powder, 5-6 parts of calcium metasilicate powder, 1.2-2 parts of talc powder, 1.6-2.5 parts of nano titania, 5-7.2 parts of water-based gelatine powder and 1.5-2.4 parts of hydrophobic powder through uniform mixing of the cement, the sericite powder, the calcium metasilicate powder, the talc powder, the nano titania, the water-based gelatine powder and the hydrophobic powder in a stirring barrel in a certain proportion. The prepared finished product has good anti-ultraviolet, ageing-resistant, thermal insulation, waterproof and weather-proof properties and is long in service life, applicable to exterior walls and roofs made of metal, wood and concrete and wide in use range.

Description

technical field [0001] The invention relates to the field of coatings, in particular to an environment-friendly waterproof and heat-insulating dry powder coating for exterior walls and roofs. Background technique [0002] The construction industry is an industry that revolves around the design, construction, decoration, and management of buildings. Urban architecture is an important part of the construction industry. Urban architecture inherits culture in its unique way, spreads the charm of life, and continuously penetrates into the In people's daily life, create a harmonious and peaceful spiritual home for people. [0003] The outer wall is to protect the building, so that it forms the boundary between indoor and outdoor. The outer wall has the functions of bearing a certain load, sheltering from wind and rain, thermal insulation, noise prevention, and fire safety. The roof is the load-bearing and enclosure member on the top of the building. , both exterior walls and roof...

AI Technical Summary

Problems solved by technology

[0003] The outer wall is to protect the building, so that it forms the boundary between indoor and outdoor. The outer wall has the functions of bearing a certain load, sheltering from wind and rain, thermal insulation, noise prevention, and fire safety. The roof is the load-bearing and enclosure member on the top of the building. , both exterior walls and roofs are essential components for buildings. In order to make exterior walls and roofs waterproof, heat-insulating and aging-resistant, people will coat exterior walls and roofs with paint. Existing coatings are used for exterior walls and roofs. Although the coating on the roof has a certain waterproof and heat insulation effect, the effect is poor, and the weather resistance and UV resistance are poor. People are also conducting research in this area