Antimicrobial self-cleaning water-permeable brick and preparation method thereof

Abstract

The invention discloses an antimicrobial self-cleaning water-permeable brick and a preparation method thereof. The antimicrobial self-cleaning water-permeable brick is characterized by being prepared from, by weight, 2-4 parts of carboxymethyl chitosan zinc, 3-6 parts of titanium dioxide, 1-3 parts of rosin, 10-20 parts of ethyl alcohol, 4-8 parts of silver-ammonia solution, 25-35 parts of ethyl acetate, 2-3 parts of magnesite, 8-14 parts of activated carbon, 3-5 parts of polyacrylate, 3-5 parts of discarded fabric, 20-30 parts of aeolian sand, 30-40 parts of polytetrafluoroethylene emulsion, 10-15 parts of epoxy resin GCC135 and 10-15 parts of curing agent GCC137; silver particles are evenly loaded on the surface of the titanium dioxide, then activated carbon is used for loading the titanium dioxide, and therefore a series of continuous and thorough self-cleaning effects, that is, the activated carbon adsorbs sulfur dioxide and other substances, silver ions activate and promote catalysis of the titanium dioxide, and the titanium dioxide decomposes the substances can be achieved; by adding the carboxymethyl chitosan zinc, the antimicrobial property of the water-permeable brick is enhanced.

Description

Technical field [0001] The invention relates to the field of building materials, in particular to an antibacterial self-cleaning permeable brick and a preparation method thereof. Background technique [0002] With the rapid economic development and the acceleration of urbanization, the urban surface is covered by more and more impervious materials such as cement pavement and asphalt pavement, which brings convenience to traffic and also causes many negative effects. On the one hand, impermeable pavements greatly reduce the infiltration of urban rainwater, resulting in the replenishment of groundwater, the continuous decline of groundwater level, and even cause ground subsidence, seawater intrusion, etc.; on the other hand, road rainwater enters the river through the urban drainage system, increasing The pressure of the urban drainage system and the rainwater that cannot be drained will produce a large amount of water on the road surface, and urban floods frequently occur. A lar...

AI Technical Summary

Problems solved by technology

[0003] In Wang Pingping's "Preparation and Performance Research of Resin Sand-based Permeable Brick", a kind of resin sand-based permeable brick was prepared by using aeolian sand, epoxy resin and curing agent. However, considering the practical application, there are still insufficient functions. For example, the adsorption and decomposition of surface attachments and harmful gases, the lack of excellent compression and crack resistance, etc.