Organic photochromic materials that can be used in coatings

organic photochromic material is a new kind of functional material silife in recent years, which has not only been used in high-tech field, but also emerged in the civil industryForeign countries have a small number of clothing, plastics and other civilian products, causing the attention and attention of entrepreneurs in various countriesChina's research in organic photochromic materials, has reached the world's advanced level, Nankai University after years of efforts, has been able to small-scale production of organic photochromic paint and dyespaint with photochromic materials can be made into a variety of daily necessities, clothing, toys, ornaments, strollers or coating to the inside and outside walls, road signs and buildings, such as a variety of signs, patterns, in the light will show a rich color, colorful patterns or patterns, beautify people's lives and the environment; To or embedded in the car glass or window glass, daylight exposure immediately discolor, so that daylight does not glare, protect vision, ensure safety, and can play a role in regulating indoor and car temperature, can also dissolve or mixed into plastic film, used as agricultural shed film, increase the production of agricultural products, vegetables, fruits and so onAnother important use is for military covert materials, such as clothing of military personnel and shrouds of combat weaponsthe industry involved in photochromic materials are particularly large, for example, there is one percent of clothing printing and dyeing with glossy color-changing materials, then the country has tens of millions of sets of clothing sales, the lowest also reached about l billion yuan;organic photochromic material in sunlight or other light source exposure, will soon change from colorless or light color to red, green, blue, purple and other colors, stop lighting or heating and return to the original colorless state, is reversible color-changing processThe purpose of international research is to use optical information storage, light regulation, optical switch, optical device materials, optical information genetic materials, modified genetic chip materials, etc., and China's scientific and technological personnel in addition to the above-mentioned objectives, but also to use it successfully for anti-counterfeiting identification materials, including Nankai University has industrialization of scientific research results and mass production of productsThe new research shows that the photosensitive photocopier and holographic materials can be prepared by using the photochromic properties, and the photochemical dual-stabilization can be realized by using photochromic reaction, which can be used for high-performance computers of nanoscale recording elementsthe country that studies photochromic materials is the United States, Japan, France and so on, Japan in the civil industry development relatively earlyAt present, only Japan and the United States in the world have a small number of photochromic materials for sale, has seen T-shirts printed with photochromic material patterns, organic photochromic materials made of color-changing glasses are also soldHowever, the United States, Japan and other developed countries to use photochromic materials for the civil industry is still in its infancy, and there is no large-scale production and listing, the domestic has not seen the production of photochromic materials products, only China's anti-counterfeiting identification of anti-counterfeiting identification materials in some tobacco and alcohol products, so the development of photochromic materials, in the application of civil goods have a lot of room for development and broad marketphotochromic materials are cheap in raw materials, will not increase the photochromic clothing, fabrics, fibers, plastic products, paints, paints, inks and other products too much raw material cost;