Do you know the principle of color-changing glass?
[China Glass Net] Glass is made of quartz sand, soda ash, feldspar and limestone. After mixing, high temperature melting and homogenization, it is processed and formed by annealing. Widely used in construction, daily use, art, instrumentation and other fields, rich in variety and superior performance. Next, let's take a look at our article to understand what color-changing glass is, and the principle of color-changing glass to understand the characteristics of the new glass of color-changing glass. First, what is the color changing glass? The color-changing glass refers to a glass that changes color under certain conditions such as light, temperature, electric field or current, surface pressure, and changes with conditions, and can reversibly automatically return to the initial state when the application condition disappears. , also known as dimming glass. The color-changing glass changes its transmission characteristics according to changes in the external environment, and can effectively control the solar radiation energy, thereby achieving the purpose of energy saving. The color-changing glass is mainly classified into photochromic glass, thermochromic glass, electrochromic glass, and force-changing glass according to the mechanism of glass property change. Among them, photo-induced, electrochromic glass is particularly concerned by the people in the curtain wall industry. The color is changed under irradiation of light of a suitable wavelength, and the glass of its original color is restored when the light source is removed. Also known as photochromic glass or light color glass. 2. The color changing glass is made by adding a light color material to the glass material. Second, the principle of color changing glass The color-changing glass changes its color under the irradiation of light of appropriate wavelength, and restores the original color of the glass when the light source is removed. Also known as photochromic glass or light-colored glass. The color-changing glass is made by adding a light-colored material to the glass material. This material has two different molecular or electronic structural states. There are two different absorption coefficients in the visible light region. Under the action of light, it can change from one structure to another, resulting in reversible changes in color. A common silver halide-containing color-changing glass is prepared by adding a small amount of silver halide (AgX) as a sensitizer to sodium alumino borate glass, adding a trace amount of copper and cadmium ions as a sensitizer, melting the glass into a glass, and heat-treating at a suitable temperature. When the silver halide is condensed into particles, it is reduced. When it is irradiated by ultraviolet or visible light, the silver ions are reduced to silver atoms, and some silver atoms are aggregated into a colloid to make the glass develop color; after the light stops, the heat is radiated or long. Under the illumination of red light or infrared light, the silver atom turns into silver ions and fades. The characteristic of silver halide color changing glass is that it is not easy to fatigue. After 300,000 times of light and dark changes, it still does not fail. It is a commonly used material for making color-changing glasses. Color change glass Glass can also be used for information storage and display, image conversion, light intensity control and adjustment. Glass containing silver bromide (or silver chloride) and trace copper oxide is a color-changing glass. When exposed to sunlight or ultraviolet light When silver bromide is decomposed, it produces silver atoms (AgBr==Ag+Br). Silver atoms can attract visible light. When silver atoms are concentrated to a certain amount, most of the light incident on the glass is absorbed. The glass will now turn grayish black. When the discolored glass is placed in the dark, under the catalysis of copper oxide, the silver and bromine atoms will combine to form silver bromide (Ag+Br==AgBr). ), because silver ions do not absorb visible light, then the glass will become colorless and transparent. This is the basic principle of discoloration of color-changing glass. Down jackets are usually filled with materials such as feathers and goose down, which provide warmth when worn. Therefore, down jackets are suitable for wearing in cold winters and do not feel cold compared to thin coats. Moreover, there are many styles of down jackets available, suitable for most adult women to wear. Women can choose according to their own needs. According to customer feedback, they feel warm when wearing them. Ladies Down Jacket ,Red Puffer Jacket Women,Ladies Long Puffer Coat,Ladies Puffer Coat T&H INTERNATIONAL TRADING LIMITED , https://www.thonor-corp.com