Overview of the hottest antibacterial materials in

Overview of antibacterial materials indicates the development direction of coatings

overview of antibacterial materials indicates the development direction of coatings

April 27, 2002

harmful bacteria have caused great harm to people's production and life for a long time. From the pathogenic Escherichia coli "O-157" in Japan nationwide, the "mad cow disease" in Britain, to the "two Britain" in Belgium and other countries, and the "foot-and-mouth disease" in Japan, to the "anthrax connecting oil pumps and pipelines" in the United States after the "9.11" incident, this shocking event, People are worried about the danger that the deterioration of the ecological environment and microbial environment brings to the earth and human health. Therefore, countries all over the world pay more attention to the research of antibacterial agents. Antibacterial materials have become a new industry in the world

antibacterial agent is a new type of auxiliary agent with antibacterial and bactericidal properties. Usually, adding one or several specific antibacterial agent ingredients to the applied materials can produce functional new materials, namely antibacterial materials, such as antibacterial coatings, antibacterial plastics, anti

bacterial fibers, etc. Because the material itself is endowed with antibacterial property, various products made of antibacterial materials have the function of hygiene and self-cleaning. Because antibacterial materials are widely used and used in daily life, the development and application of antibacterial materials are developing rapidly, which is of great significance to improve human living environment and reduce diseases

antibacterial agents in antibacterial materials can be divided into three categories: natural, organic and inorganic. Natural antibacterial agents are made by using the electromechanical driven antibacterial components in the rotation of the machine specimen in the natural plants. At present, they are still in the development stage. Their advantages are low toxicity, but their disadvantages are short service life, poor heat resistance and narrow application range. They are mainly used in plastic products for one-time use such as food packaging bags. Organic antibacterial agents are mainly composed of organic acids, phenols and alcohols, and their antibacterial mechanism is to destroy the cell membrane, denature the protein and block metabolism. Their advantages are strong bactericidal power, good immediate effect and wide sources, but their disadvantages are high toxicity, microbial drug resistance, poor heat resistance and easy migration. At present, they are mainly used in coatings and soft PVC, polyethylene and other plastics with low processing temperature. Inorganic antibacterial agents generally contain silver, zinc, copper and other metal ions

components and inorganic carriers, such as zeolite, phosphate, hydroxyapatite, etc. through the slow-release effect to improve the antibacterial long-term

, its advantages are that it does not produce drug resistance, excellent heat resistance, but its disadvantages are easy to change color and high cost. It has great advantages in the manufacture of antibacterial agents for coatings,

Plastics and chemical fibers

the development and application of inorganic antibacterial agents in Japan are in a leading position in the world, especially in improving the discoloration of silver antibacterial agents. The discoloration problem of inorganic antibacterial agents has been preliminarily solved, but the price is still high. At present, several major manufacturers such as Otsuka, Pinchuan fuel, East Asia synthesis, hammer spinning and Panasonic account for more than 80% of Japan's anti

bacterial agent market. Japan has set its sights on the European, American and Chinese markets in the future. It is expected that the share of overseas markets will reach 10 times that of its domestic market. In Europe and the United States, organic antibacterial agents are mainly used. The application of its antibacterial plastic at the temperature of (20 ± 5) ℃ is mainly soft PVC, and the main year-on-year increase of 2 modified plastics is 9.32% But at the same time, the surplus enterprises' surplus balance of 4.351 billion yuan need to use arsenic containing organic antibacterial agents and thiazole organic antibacterial agents, and

is the largest in PVC children's toys and other products

China began to track and study antibacterial agents and antibacterial materials more than ten years ago, but due to poor research conditions, the starting point of investment is low, and has not formed its own research and development system for a long time, which is far from the international level. At the same time, compared with developed countries, the living standard of Chinese people is relatively low, and the requirements for antibacterial properties of materials are not high. Therefore, the market development of anti

bacteria materials is slow. In recent years, on the one hand, people begin to pay attention to their own living environment and health, and on the other hand, manufacturers of

noodles hope to improve the added value of their products to occupy the highly competitive market, so the market of antibacterial materials

faces great development opportunities. It is estimated that at present, there are more than 40 scientific research institutions and colleges engaged in antibacterial research in China, and more than 30 professional antibacterial agents, antibacterial material manufacturers and traders. Products are distributed in household appliances, building materials, daily use, health care, toys, food, agriculture, textiles, information and other industries. An antibacterial material related industry has begun to take shape.

at present, China is in the field of inorganic antibacterial agents, organic antibacterial agents Photocatalyst antibacterial agents and other fields have a strong development momentum, and a small number of products have been put on the market. Among them, there are many innovative technical routes, such as carrying metal ions such as silver with nano inorganic particles, nano titanium dioxide photocatalyst and so on. They are antibacterial agents developed by using the material science foundation with international advanced level. In the past two years, the Innovation Fund for small and medium-sized enterprises of the Ministry of science and technology of the people's Republic of China has also supported four projects, including organic antibacterial agents, titanium dioxide photocatalyst, nano antibacterial agents, rare earth active composite antibacterial agents, with free funding of more than 3 million yuan and supporting funds of nearly 10 million yuan. However, experts believe that the application technology research of antibacterial materials is one of the key links in the development of antibacterial materials industry, which has a great constraint on the development scale of the industry. Therefore, we should

strengthen the development of application technology of antibacterial materials, and strive to get further support from the national industrial policy in the development and industrialization of application technology

experts believe that at present, China's antibacterial material industry is still in the early stage of development, and many products are still in the introduction period

just as new things will have various problems more or less when they first appear, the antibacterial material industry is also facing some problems, the most prominent of which is the market chaos caused by the lack of unified industry and national standards to regulate the antibacterial properties of antibacterial products. Because consumers cannot distinguish the quality difference between antibacterial materials, antibacterial products, ordinary materials and ordinary products from appearance, this gives criminals an opportunity to a certain extent. For this reason, in order to make this emerging industry develop healthily in the future, while calling on the country to introduce the corresponding standards as soon as possible, industry insiders should concentrate the decentralized research and development forces, promote industry self-discipline and coordinate industry development