Keywords: nano self-cleaning glass Source: www.examda.com
Now, we are very happy to see that the scientists of Changchun New Century Nanometer Research Institute have successfully developed nano self-cleaning glass and applied it to large-scale construction projects, which has achieved a major breakthrough in the industrialization of nanotechnology and won special honors for the country.
The source of scientists' innovative achievements: the big exam.
Professor Zhou Dafan, director of the Institute, is an expert in atomic energy in China. Graduated from department of engineering physics of Leningrad Institute of Chemical Technology in the former Soviet Union in 1960s. In the early 1980s, he went to a scientific research center in the United States to specialize in the study of "laser spectrum", and served as the editorial board of "China Laser" and "Chemical Physics", and published more than 30 influential academic papers, which were well received by experts and scholars at home and abroad. The key research project of Chinese Academy of Sciences "Two-step photoionization experiment for laser separation of uranium isotopes" which he presided over won the first prize of scientific and technological progress of China Academy of Sciences 1985, and was rated as one of the top ten scientific and technological achievements in China, which was included in the national key research projects during the Seventh Five-Year Plan and the Eighth Five-Year Plan. 1992 was nominated by the State Council to enjoy special government allowance. In the same year, when Comrade Jiang Zemin visited Changchun Institute of Applied Chemistry of Chinese Academy of Sciences, he specially listened to his report on scientific research achievements.
Researcher Zhou Dafan is modest, simple and well-known, and many people are willing to cooperate with him. After careful consideration, he reached an understanding with many scientific and technological workers such as electric power expert and senior engineer Zhang Shuqin: "If you do it, you will be the most advanced; If you do it, do it at the highest level. " Therefore, they established Changchun New Century Institute of Nanotechnology in 1997, determined to study the development and application of nanotechnology, and decided to develop nano self-cleaning glass as a breakthrough in the development of nanotechnology. In research and development, they are different from the powder research practice of hundreds of nanotechnology research institutions in China. They use the principle of colloid chemistry to produce nanoparticles from liquid and form films on both sides of flat glass by sol-gel method.
In June, 20001year, Dean Zhou and his colleagues made extraordinary efforts to finally develop nano self-cleaning glass. On July 4th, at the "200 1 International Nano-materials High-level Forum and Technology Application Seminar" held in Beijing, Director Zhou released this exciting message, which caused a sensation and became a hot spot of the conference. Source: www.examda.com.
In August 1, 20065438+5 weeks, the director comprehensively introduced nano self-cleaning glass at the "nano-ultrafine scientific research achievements project fair" held in Huangshan city, which attracted the special attention of the participants.
On September 29th, 20001year, Jilin Provincial Science and Technology Department organized the appraisal meeting of scientific and technological achievements of "Development and Pilot Test of Nano Self-cleaning Glass". Experts and scholars attending the meeting are very interested in titanium dioxide in glass films.
Particle size; Phase structure analysis of glass film: glass spectral transmittance test report: nano-film thickness test report; Sterilization test report and other five contents were monitored and the results were identified. Everyone agrees that this achievement belongs to the innovative achievement of receiving material technology, which fills the domestic gap and reaches the international advanced level. Source of this article: Examination Network
200 1, 10, Changchun new century nano research institute exhibited samples in Shenzhen high-tech fair, and released news, which aroused strong repercussions. Source: www.examda.com.
On April 9, 2002, they exhibited nano self-cleaning glass, nano safety glass and nano toughened glass in Beijing Exhibition Hall, which caused a sensation again.
How to quickly transform scientific research achievements into productive forces and turn pilot samples into commodities as soon as possible is always the main problem they seriously consider and pay attention to, which is also the key to the industrialization of nanotechnology. With the support and coordination of the main leaders of Changchun Municipal Government and relevant departments, their cooperation with Changchun pilkington Company was promoted.
Zhang Shuqin, a senior engineer and power expert, shoulders the heavy responsibility of organizing and leading the research of production technology and the installation and debugging of production line. This expert graduated from the Power Department of Tianjin University in the 1960s and has been engaged in technical management of electric power production for a long time. It has profound theoretical foundation, rich practical experience and excellent organization and coordination ability. He and Director Zhou cooperated tacitly, complemented each other's advantages, and worked together to overcome difficulties. After day and night efforts, the pilot equipment was transformed into a production line with an annual output of 200,000 square meters of nano self-cleaning glass in a short time, and the trial operation was successful, producing 5,000 square meters of "hot-bent sandwich nano self-cleaning glass", which met the urgent need of Changchun Changjiang Road commercial pedestrian street project in time. At the same time, the industrial production of nano self-cleaning glass has been realized, and it has been actually applied to large-scale urban construction projects for the first time in China.
The Source of the Second Revolution of Traditional Industries: Examination University
As we all know, glass has a wide range of uses, which is related to the national economy and people's livelihood. It is a traditional industry with a long history. At present, there are more than 100 large glass production enterprises in China, accounting for about 30% of the world's annual output, and they are known as big glass production countries. However, there are many ordinary glasses and few special glasses, and some still need to be imported. Generally speaking, supply exceeds demand, with an annual surplus of about 28%. Therefore, the competition in the glass market is extremely fierce.
The appearance of nano self-cleaning glass has changed the properties of glass, and the market competition is no longer the quality difference of products with similar properties, but the essential difference of products with different properties. After nanotechnology is widely used in glass production and glass products, it is to transform traditional industries with high technology and upgrade them. This is a revolutionary leap in the glass industry, which will bring great economic and social benefits.
The nano self-cleaning glass developed and produced by Changchun New Century Institute of Nanotechnology has unique properties and many special functions. Collector's retreat
The first is self-cleaning. This kind of glass is coated with a layer of nano-TiO2 _ 2 film on both sides of flat glass, which has photocatalytic activity and good hydrophilicity and lipophilicity under the action of ultraviolet light. All kinds of organic pollutants deposited on glass can be decomposed by TiO2 _ 2 in sunlight, achieving the effect of self-cleaning. When rain falls on the glass, it can form a water film without leaving traces of water and dirt. Using nano self-cleaning glass can save the expensive cost of regular cleaning of high-rise buildings and avoid the pain of frequent cleaning of doors and windows by residents. While self-cleaning, photocatalyst can continuously decompose harmful gases such as formaldehyde, benzene and ammonia, kill all kinds of bacteria and viruses in indoor air, effectively purify air, reduce pollution, improve working and living environment, benefit people's health and improve quality of life.
Secondly, nano self-cleaning glass has high light transmittance. The thickness of TiO2 film is 0.3 micron, the average particle size is 10-20 nm, and the crystal form is anatase. Nano-self-cleaning glass also has nearly perfect optical properties, with low transmittance in near ultraviolet and near infrared bands, but high transmittance in visible region, with a transmittance of 75-80% (the national standard transmittance of automobile glass is 70%). This is the most ideal spectrum of door and window glass, which can be used as sunshade glass and automobile safety glass.
Nano-self-cleaning glass film has good firmness. After repeated destructive experiments, this kind of glass has a long life, even as durable as ordinary glass. After high temperature treatment, TiO2 film and glass are sintered together, which is very firm and does not deteriorate or fall off. At the same time, this kind of glass is acid-resistant, alkali-resistant and corrosion-resistant, and can be widely used in curtain walls, buildings and houses.
In a word, nanotechnology is applied to glass production, forming industrialization and injecting vitality into the traditional glass industry. The toughened glass produced by Changchun New Century Institute of Nanotechnology with nanotechnology has very good performance, and the products are well received by customers after being put on the market. The ceiling of Changchun Changjiang Road Commercial Pedestrian Street adopts "hot bending laminated glass". After the test of rainy season, its unique performance is fully exposed, and people praise it: this is a miracle!
Brilliant prospect of nano self-cleaning glass Source: www.examda.com
The successful development and market application of nano self-cleaning glass caused a sensation at home and abroad.
In August of 20001year, Changchun New Century Institute of Nanotechnology applied for a patent from the State Patent Office. In February this year, after the patent content was made public, it was like a stone stirring up a thousand waves. Experts, scholars and enterprises from Belgium, Germany, Japan and other countries sent letters to ask for information and samples. Grafburg, Belgium is the oldest glass manufacturer in the world, and expressed strong sincerity of exchange and cooperation in the letter. An American investment company also offered investment cooperation, which is currently under negotiation. The advent of this major scientific research achievement has also caused waves in China. Entrepreneurs from Heilongjiang, Tianjin, Jiangsu, Zhejiang, Yunnan, Sichuan, Guangdong and other provinces (cities) have expressed their urgent desire for cooperation, and some manufacturers have even signed a letter of intent for cooperation first.
Some patent agencies at home and abroad also paid attention to it and awarded the institute various honors.
In March 2002, the British International Patent Development Center awarded "Nano-scale self-cleaning glass and production technology" as the gold medal of the patent fair; On April 10, People's Daily Market Information Center listed the patented technology (product) of "Nano-scale Self-cleaning Glass and Production Technology" as the key selected object of People's Daily Market Newspaper, and awarded Director Zhou the honorary title of "China Excellent Inventor".
On May 18, 2002, the organizing committee of Hong Kong International Patent and Technology Expo presented the Institute with an honorary certificate (the project of "Nano-self-cleaning glass and production technology" won the gold medal of 2002 Hong Kong International Patent and Technology Expo) and awarded Director Zhou the personal "World Scientific Development Achievement Award"; Director Zhou is also honored to be hired as a special researcher by London Institute of Applied Technology. Examination forum
Nano self-cleaning glass has important popularization and application value and broad development prospects. At present, there are more than 70 sets of float glass production lines in China, with an annual output of about 9 million tons. Together with the glass produced by other methods, the annual output of glass in China is about 204 million weight boxes. With the rapid development of economy, the continuous improvement of people's living standards and the gradual enhancement of environmental awareness, nano self-cleaning glass will surely become a hot commodity in domestic and foreign markets. According to the conservative prediction of relevant experts, the market demand of high-grade and high-quality glass in the next 20 years is roughly as follows: 65 million weight boxes in 2005; 20 10 year is10.50 billion weight box; In 2020, it will be 654.38+0.9 billion TEUs. Every five years, the growth rates are 169%, 136% and 127%, respectively, which shows that the development potential of high-grade and high-quality glass market in China is huge. Therefore, nano-self-cleaning glass has obvious market competitive advantages and considerable development prospects.
At present, experts from Changchun New Century Nano Research Institute are going all out to build a new factory. Changchun High-tech Industrial Development Zone has built a modern nano self-cleaning glass factory covering an area of 2 1000 square meters, with an annual output of 2 million square meters.
Nanotechnology research has only a history of more than ten years, and the institute has only been involved in this field for five years. In such a short time, it has made a major breakthrough, walked in the forefront of the world, made special contributions to society, and won honor for the country. What a blessing! What is even more admirable is that these outstanding experts have the spirit of loving science and contributing to society. They are ambitious, dare to climb, and their careers are thriving. Collector's retreat
We earnestly hope and fully believe that after they have made a major breakthrough in the industrialization of nanotechnology, self-cleaning nano-glasses will be more and more widely used in all walks of life, and other products they have developed will also come out one after another quickly, making great contributions to promoting human health and improving people's quality of life!