A natural stone imitation layer, photovoltaic building material and preparation method thereof

Abstract

The invention belongs to the technical field of photovoltaic building integration, and relates to an imitation natural stone layer, a photovoltaic building material and a preparation method thereof. An imitation natural stone layer, the raw material of the imitation natural stone layer includes imitation natural stone slurry, wherein, by weight ratio, the imitation natural stone slurry includes 20-40 parts of acrylic resin, 50-65 parts of natural fine sand, 20-40 parts of filler, 3-10 parts of film-forming aid, 3-5 parts of nano-alumina, 4-6 parts of nano-zinc oxide, 80-130 parts of water, 3-8 parts of cellulose, 0.3-2 parts of leveling agent 0.5-2 parts of defoamer, 0.5-1.2 parts of water-based thickener, 0.1-1 part of inorganic pigment. The imitation natural stone layer prepared by the present invention has strong compactness and corrosion resistance, so it can well isolate the protected material from external corrosive substances; the hardness of this imitation natural stone layer is not low At 5H, it reached the hardness required by conventional building materials.

Description

technical field [0001] The invention relates to the technical field of photovoltaic building integration, in particular to an imitation natural stone layer, a photovoltaic building material and a preparation method thereof. Background technique [0002] The three basic elements of architecture include: architectural function, architectural technology and architectural image. The architectural image requires that the building must conform to the general laws of aesthetics and give people spiritual enjoyment. At present, the photovoltaic modules used in the field of building integrated photovoltaics (BIPV) are generally dark blue, gray, and black. Their colors are not beautiful, and they are difficult to be highly integrated with buildings, and cannot meet the aesthetic requirements of buildings. On the other hand, natural stones such as marble and granite have been widely used in high-end exterior wall decoration projects due to their good durability and excellent decorative...

AI Technical Summary

Problems solved by technology

At present, there are few products that combine photovoltaic modules with imitation natural stone coatings. Such products need to consider the following issues during the research and development process: 1) The coating generally presents a certain color, and its transparency is low, so it penetrates the coating The number of photons entering the solar cell is also less

Preparing a layer of architectural decoration coating on the surface of the solar cell may greatly reduce the conversion efficiency of the battery; The adhesion between the solar cell layers, if the adhesion between the coating and the solar cell layer is weak, will fall off the solar cell layer in an outdoor environment, causing the solar cell to be eroded by the outside world, greatly reducing the service life of the battery and 3) Most of the paints and decorative paints used in the past are oil-based paints, mainly composed of organic matter, including toluene, xylene, formaldehyde, etc. that are harmful to human health. Emphasis on health, the water-based finish layer that is friendly to the human body has become a subject of discussion by relevant practitioners

Images