Introduction to the characteristics and development status of new environmentally friendly materials activated carbon fiber
At present, a new type of technological and environmentally friendly material, activated carbon fiber, is attracting more and more attention from all walks of life. Due to its high-efficiency adsorption performance of quickly adsorbing toxic and harmful gases such as formaldehyde and benzene in the air, it enjoys the reputation of “black gold” and is hailed as one of the advanced environmentally friendly materials in the 21st century. It is internationally recognized as an “addict expert” .
As a new generation of functional adsorption materials, activated carbon fiber modern household fabrics developed using extraordinary craftsmanship and production technology have brought new enjoyment to people’s lives. Recently, the reporter interviewed Wang Tonghua, a professor and doctoral supervisor at the School of Chemical Engineering of Dalian University of Technology who has been committed to the research of activated carbon fiber for many years, and the chairman of Jiangsu Tongkang Activated Carbon Fiber Co., Ltd., the first domestic company to successfully apply activated carbon fiber to modern homes and many fields. Zhou Jian.
Addiction experts can quickly absorb harmful gases
Host: In recent years, people have become increasingly concerned about environmental protection, and activated carbon products have been used in daily life. What is the difference between activated carbon fiber and activated carbon?
Wang Tonghua: Activated carbon is a granular (GAC) carbon adsorption material made of carbonaceous materials that has a black appearance, developed internal pore structure, large surface area, and strong adsorption capacity. Activated carbon fiber (ACF) is prepared from carbonizable organic fibers such as viscose fiber and polyacrylonitrile fiber through low-temperature carbonization and high-temperature activation. It has a developed microporous structure and excellent adsorption performance.
Therefore, activated carbon fiber has also become “filamentous or fibrous” activated carbon, which is a substitute for existing granular activated carbon and is a new generation of functional and efficient carbon adsorption materials. Activated carbon fibers have well-developed micropores and uniform pore sizes, which are distributed on the fiber surface. Almost all are effective pores. The effective adsorption surface area is as high as 1000~2500m2/g, which is several times that of activated carbon.
The effective adsorption capacity of activated carbon fiber is more than 10 times higher than that of granular activated carbon (GAC). Therefore, activated carbon fiber has strong adsorption capacity, fast adsorption and desorption speed, and has good adsorption capacity for low concentration or trace amounts of toxic and harmful gases.
Carbon fiber series products are on the market and have a wide range of applications
Host: What is the current research and development status of activated carbon fiber technology in the world? How about the research and industrialization of activated carbon fiber technology in China?
Wang Tonghua: Research on activated carbon fibers began in the 1960s, and industrialized production of activated carbon fibers was achieved in the early 1970s. At present, Japan, the United States and Russia maintain leading positions and advantages in the production and application of activated carbon fibers, and have widely used activated carbon fibers in many areas of social life.
In China, the industrial production of activated carbon fiber began in the 1990s. Currently, there are only more than 10 domestic companies that can normally produce activated carbon fiber. Compared with other countries, there is still a big gap in the research and development and application of activated carbon fiber in China, especially in the industrialization and application fields of activated carbon fiber technology.
In recent years, activated carbon fiber manufacturers in Jiangsu, Liaoning and other places in China have made rapid progress, especially Jiangsu Tongkang Activated Carbon Fiber Co., Ltd., which is one of the representative enterprises in domestic activated carbon fiber and has successfully developed a series of activated carbon fiber products. , especially the developed viscose-based mesoporous activated carbon fiber, has achieved industrial production, solved the problem of a single variety of domestic activated carbon fiber market, and filled the domestic gap.
Moderator: As a new generation of functional adsorption materials, in what aspects has China’s activated carbon fiber product development and application achieved significant breakthroughs?
Zhou Jian: The application of activated carbon fiber products in China is currently concentrated in industrial and other fields. Jiangsu Tongkang Company is the first domestic company to develop activated carbon functional room supplies in the field of modern homes. At present, the company has successfully developed a series of activated carbon fiber products for modern family rooms, such as activated carbon fiber quilts, pillows, health care pads, curtains, cushions, pillows, insoles, knee pads and elbow pads, car seat cushions, and activated carbon fiber baby bedding. series, etc., through the use of these activated carbon fiber products, toxic and harmful gases present in indoor air can be effectively removed, helping people improve their quality of life.
Carbonized fire-retardant fabrics, home escape protection supplies
Moderator: It is understood that activated carbon fiber has fire protection function. How is Tongkang Company adopting activated carbon fiber to develop fire protection products?
Zhou Jian: The development of new fire-resistant fabrics not only involves fabric finishing, but also involves new materials, new functions, and new products. Therefore, innovative thinking, innovative methods, and innovative technologies need to be adopted. Fabrics, materials, chemicals, etc. Multidisciplinary joint research.
In recent years, Tongkang Company has worked closely with well-known domestic universities and scientific research institutes to develop and successfully develop new carbonized fire-proof fabrics. The fabric uses viscose fiber as raw material, and is impregnated and carbonized to form a carbonized fire-proof fabric with permanent fire-proof functions and effects. The carbonized fire-proof fabric developed using activated carbon fiber is a very functional fire-proof fabric, which is different from ordinary fire-proof fabrics. , the fire protection function will not weaken with the increase of long-term use and cleaning frequency. It is recognized by the national authority as a new generation of decoration and decorative fire protection products.�.
At present, Tongkang’s annual output of carbonized fire-retardant fabric functional fabrics has reached 180,000 meters, and it has obtained 10 carbonized fire-retardant fabric patents and obtained corresponding intellectual property rights certificates. In addition, Tongkang Company has also carried out industry-university-research cooperation with Nantong University to develop carbon fiber fireproof materials, special protective fabrics, protective work clothes, fire blankets, etc. In particular, the new carbon fiber household fire blanket can be used as a protective object for escape in the event of a fire emergency. It is not only a tool for extinguishing fires, but also an escape protection product, which is more suitable for home use.
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