Carbon Nano Fiber Discontinuous, highly graphite, highly compatible with most polymer processing techniques (PhD in Nano-Microelectronics)
Researcher and author: Dr. ( Afshin Rashid)
Note: The average diameters of the carbon nanotubes offered are from 125 to 150 nanometers depending on their degree and length from 50 to 100 micrometers. The diameter of these nanofibers is much smaller than that of continuous or milled carbon fiber (5-10 nm) and is significantly larger than carbon nanotubes (1-20 nm), yet it has many similar advantages.
Carbon nanofibers are refined after production to transfer different properties to the surface. There are generally three types of nanofibers. pyrotically simple to remove surface hydrocarbons and produce a virgin surface for chemical bonding. This type of nanofiber also serves as a precursor to the other two lists. To provide the best combination of mechanical and electrical properties, it is thermally heated to 1500 ° C, while to produce products without catalysts and to maximize the thermal conductivity of composites, it reaches 2900 ° C. Discontinuous, highly graphite, carbon nanofibers (CNFs) are highly compatible with most polymer processing techniques and can disperse in isotropic or anisotropic states. CNFs have excellent mechanical properties, high electrical conductivity and high thermal conductivity that can be transferred to a wide range of matrices including thermoplastics, thermostats, elastomers, ceramics and metals. Carbon nanofibers also have a unique surface finish, which facilitates performance and other surface modification techniques for setting and engineering nanofibers to the host polymer or its application.
Nanopolymers, unlike most composites, can not be separated in solutions and contain amino groups as the main constituents, which may, depending on the chemical nature of the monomers used in the synthesis of the polymer, be composed of all carbon atoms, oxygen And Azt is formed. A polymer or copolymer containing dispersed nanoparticles is a nanopolymer. These nanopolymers can be linear or branched. Linear nanopolymers or polymalic acid have functional groups distributed throughout the length of the polymer, while branched polymers such as dendrimers usually carry them at the molecular level. Nanofibers) Nanofiber It is a term that refers to fibers with a diameter of less than 500 nanometers. When the diameter of polymer fibers is reduced from a micron to a few hundred nanometers, they can achieve amazing properties such as a very high surface-to-volume ratio - good flexibility and high mechanical performance. The main property of fibers is a very high ratio of length to diameter. Micron fibers are fibers in which filaments of less than one denier in mass per gram of 9,000 meters less than one micrometer are called nanofibers . These fibers with relatively short lengths of several microns and a diameter of less than 500 nanometers, like nanowires, are a variety of one-dimensional structures. In general, there are several methods for the production of nanofibers, some of which include the method of stretching, separation of multi-component fibers, mold method, blowing, fuzzy separation, self-arrangement of macromolecules, electrolysis And so on. Risna produces polymer fibers with a diameter below nanometers.
Conclusion:
The average diameters of the carbon nanotubes offered range from 125 to 150 nanometers, depending on their grade and length from 50 to 100 micrometers. The diameter of these nanofibers is much smaller than that of continuous or milled carbon fiber (5-10 nm) and significantly larger than carbon nanotubes (1-20 nm), yet it has many similar advantages.
Researcher and author: Dr. ( Afshin Rashid)
PhD in Nano-Microelectronics