Explain the impact of luminous powder on the environment?

Luminous powder (commonly known as phosphor) is usually divided into photo-energy storage luminous powder and radioactive luminous powder. The photo-energy storage luminous powder is a fluorescent powder that is stored in natural light, sunlight, ultraviolet light, etc., and is stored in a fluorescent manner after being stopped, so at night or in the dark. , still can see the light, lasting for hours to ten hours. The radioactive night light powder is a radioactive substance mixed in the phosphor, and the fluorescent light emitted by the radioactive material is used to excite the phosphor to emit light. Such luminous powder has a long light-emitting time, but the application range is due to toxic and harmful environmental pollution. Small, and he has a long life, when it is finished, its life is also here, so this kind of luminous powder is generally used for fluorescent sticks, Xingyuan luminous technology is to produce long-lasting luminous powder (photoinduced energy storage luminous powder) factory.

        In the real life, people use the characteristics of luminous powder for a long time to make a weak illumination source. They have special use in the military department. They are applied to various indicators of aviation instruments, watches, windows, machines, and doors. Handles, etc., can also be pressed together with various light-transmissive plastics to make various symbols, parts, and supplies (such as power switches, sockets, fishing hooks, etc.). After being illuminated by light, these illuminating parts are still illuminating at night or unexpectedly after power failure, getting up after lightning, etc., so that people can distinguish the surrounding direction and bring convenience to work and life. Incorporating ultra-fine particles of luminous materials into textiles to make the colors more vivid, children wearing luminous textiles can reduce traffic accidents.

        At present, the domestic and foreign luminous materials are mainly short-acting luminous powder ZnS (zinc sulfide) and rare earth long-acting luminous powder (alkaline earth aluminate type long afterglow luminescent material), which emit yellow-green light, blue-green light and sky blue light. However, long-lasting luminous powder materials are prone to deliquescence, which brings difficulties to a wide range of applications. Therefore, you must pay attention to the seal when using it, but he can illuminate the time light, and it can shine for more than 8 hours after 15-30 minutes of absorption. Therefore, more and more industries use it to mark the effect and the viewing effect. Currently there are more signs in the industry. , toys, power supply, electrical appliances and many other industries.

        The short-acting luminous materials of ZnS used in the market as a matrix. The absorption time is short, but its afterglow time is only 1-2 hours. This kind of luminous powder is mainly used in the injection molding industry because it has stable performance in injection molding and is not easy to blacken, so it is used in many plastic industries.