Optical properties of carbon nanotubes, Professor Sun Xiaogang's long-term research on carbon nanotubes includes the synthesis, modification and filling of carbon nanotubes and the application of carbon nanotubes in the fields of electromagnetic shielding, wave absorption, lithium ion batteries and composite materials. Chairman and general manager of Jiangxi KELAIWEI Nano Carbon Material Co., Ltd. In 1999, it began to produce carbon nanotubes and provided them to the whole world. In 2000, it successfully developed a 5kg carbon nanotube device per day. In 2001, it established Nanchang Sun nanotechnology Co., Ltd. and served as the chairman and CEO, the company is one of the first several companies in the world to industrialize the production of carbon nanotubes (at that time there were only 7 companies in the world that could provide carbon nanotubes products), and the production of carbon nanotubes reached the ton level, users all over the world.
"Technology is the mainstay, product performance is high, and service is satisfactory" is the business philosophy that the technical staff of Henan KELAIWEI Nano Carbon Material Co., Ltd insist on implementing in the development of more than 20 years. The R & D team of KELAIWEI, led by Professor Sun Xiaogang, the top domestic nanomaterials research expert, has applied for more than 100 patents and has 9 national property rights patents. KELAIWEI pursues promoting the leapfrog development of nanomaterials with technological progress.
The optical characteristics of carbon nanotubes, KELAIWEI nano carbon materials company is a patriotic company. Facing the monopoly of foreign technology to our country, KELAIWEI people are determined to break their monopoly and become the "leader" of high-end nanomaterials industry, contributing to the society and the country. After more than 20 years of research and development, KELAIWEI carbon nanotubes, far infrared paper (FIRPs) and other technologies are the mainstay, and its products are exported to domestic and overseas markets.
The staff skills spring sports meeting of KELAIWEI Company was held as scheduled. Excellent skill is the foundation of the employees of Henan KELAIWEI Nano Carbon Material Co., Ltd in the company, and it is also the key force for the enterprise to become more and more powerful in the market competition. Through this employee skill competition activity, it can not only train the employee's skills, but also improve the employee's awareness of pursuing skill progress. KELAIWEI employees have strong skills, but the company is strong.
Henan KELAIWEI Nano Carbon Material Co., Ltd. Always pays attention to the industry frontier trends. It is reported that a large company in South Korea recently invested more than 0.3 billion yuan to expand its carbon nanotube material production capacity. After the successful implementation of the project, its carbon nanotube production capacity will be expanded to 1700 tons per year. Carbon nanotubes have a wide range of applications because their conductivity and thermal conductivity are comparable to those of diamond and copper materials.
What are the main differences between carbon nanotubes and carbon nanofibers? Henan KELAIWEI Nano Carbon Material Co., Ltd. has published two monographs on carbon nanotubes and applied for more than 60 patents. The purity of the prepared whisker carbon nanotubes has reached 99.99%. Carbon nanotubes are carbon materials with hexagonal connection structure, while carbon nanofibers are wire-mounted materials. Fibers with a diameter of less than 1000 nanometers are all nanofibers.
Using the traditional paper manufacturing process, the far infrared heating paper uses high temperature resistant fiber as the skeleton, and uses whisker carbon nanotubes as the conductive fiber. The Paper produced has very good flexibility and good conductivity, the use of whisker carbon nanotubes is easier to be evenly distributed on high-temperature fibers due to its excellent dispersion performance. The high-temperature fibers used have very good flame retardancy and high temperature resistance, can work for a long time below 200℃, and work for a short time at 350℃.
