Organic photochromic materials that can be used in coatings

Organic photochromic materials are a new kind of functional materials emerging in the world in recent years It has not only been applied in the high-tech field, but also emerged in the civil industry A small amount of foreign products have been used for clothing, plastics and other civil products, which has attracted the attention of entrepreneurs in various countries China's research on organic photochromic materials has reached the world's advanced level Nankai University has been able to produce organic photochromic coatings and dyes in small quantities after years of efforts
The paint made of photochromic materials can be made into various signs and patterns of daily necessities, clothing, toys, decorations, children's carriages or on the inner and outer walls, road signs and buildings Under the light, it will present colorful and gorgeous patterns or patterns, beautify people's life and environment; it can be made into transparent plastic film, which can be pasted or embedded into automobile glass or window glass On the glass, the sunlight changes color immediately, which makes the sunlight not dazzling, protects the eyesight, guarantees the safety, and plays the role of regulating the indoor and automobile temperature; it can also dissolve people or mix into the plastic film, which can be used as the agricultural film in the agricultural greenhouse, increasing the output of agricultural products, vegetables, fruits, etc Another important use is for military covert materials, such as the clothing of military personnel and the cover of combat weapons
Photochromic materials have a large market For example, if one percent of garment printing and dyeing uses photochromic materials, there will be tens of millions of sets of clothing sales nationwide, with a minimum of about 100 million yuan If one percent of plastic products use photochromic materials, there will be tens of millions of products nationwide, with a minimum sales of more than 100 million yuan Painting ink, safety glass film, military hidden materials and other industries can form a huge new industrial group Organic photochromic materials will soon change from colorless or light color to red, green, blue, purple and other colors under sunlight or other light sources, and will return to the original colorless state after stopping illumination or heating, which is a reversible color change process The purpose of international research is to be used in optical information storage, optical regulation, optical switch, optical device materials, optical information gene materials, modified gene chip materials, etc in addition to the above objectives, Chinese scientists and technicians have also successfully used it in anti-counterfeiting identification materials, among which Nankai University has industrialized scientific research achievements and mass produced products New research shows that self developing photographic film and holographic material can be prepared by using photochromic characteristics, photochromic reaction can be used to realize photochemical bistability, and can be used in high-performance computers of nano scale recording elements At present, the most studied photochromic materials are the United States, Japan, France and so on, and Japan developed them earlier in the civil industry At present, only Japan and the United States have a small number of photochromic materials for sale in the world We have seen the patterns of photochromic materials printed on T-shirts, and the color changing glasses made of organic photochromic materials are also sold However, the United States, Japan and other developed countries are still in the initial stage of using photochromic materials in the civil industry They have not been mass-produced and listed There are no products produced by photochromic materials in China Only the anti-counterfeiting identification trademarks used for anti-counterfeiting identification materials in China appear in some tobacco and alcohol products Therefore, the development of photochromic materials has great development space in the application of civil products And a vast market
The raw material cost of photochromic materials is cheap, which will not increase the raw material cost of photochromic clothing, cloth, fiber, plastic products, coating, paint, ink and other products; this kind of material is tasteless and non-toxic, will not cause harm to human body, will not cause pollution to the environment; it will bring people colorful color changes, adjust people's living environment and life interest 。