Self-cleaning water permeable brick for releasing negative ions and preparation method thereof

Abstract

The invention discloses a self-cleaning water permeable brick for releasing negative ions and a preparation method thereof. The brick is characterized in that the brick is prepared by the following raw materials in parts by weight: 2-4 parts of tourmalinite, 3-6 parts of titanium dioxide, 1-3 parts of straw, 10-20 parts of ethanol, 4-8 parts of a silver-ammonia solution, 25-35 parts of ethyl acetate, 8-14 parts of active carbon, 3-5 parts of polyacrylate, 2-3 parts of polyamide, 3-5 parts of waste fabric, 20-30 parts of aeolian sand, 30-40 parts of a polytetrafluoroethylene emulsion, 10-15 parts of epoxy resin GCC135, and 10-15 parts of a curing agent GCC137. Silver particles are uniformly loaded on the surface of titanium dioxide, active carbon is used for loading titanium dioxide, so that a series of continuously and thoroughly self-cleaning effects, for examples active carbon adsorbs sulfur dioxide and other substances, silver ions activate and promote catalysis of titanium dioxide, and titanium dioxide decomposes the substances, are realized; negative ions released by added tourmalinite can decompose poisonous and harmful substances into substances or micromolecular substances with nontoxicity and innocuousness.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a self-cleaning permeable brick releasing negative ions and a preparation method thereof. Background technique [0002] With the rapid development of the economy and the acceleration of urbanization, the urban surface is covered by more and more impermeable materials such as cement pavement and asphalt pavement, which brings convenience to traffic, but also causes many negative effects. The impermeable pavement, on the one hand, greatly reduces the infiltration of urban rainwater, which leads to the replenishment of groundwater, the continuous decline of groundwater level, and even causes problems such as land subsidence and seawater intrusion; on the other hand, rainwater on the road enters rivers through the urban drainage system, increasing The pressure on the urban drainage system and the rainwater that cannot be drained will cause a large amount of water to accumulate on ...

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.