Classification
Metal fibers can be classified into three types, namely metal foil and organic fiber composite fibers (filaments), metallized fibers, and pure metal fibers.(1) Metal foil and organic fiber composite fiber
The aluminum/polyester composite fiber produced in China belongs to this category and is also a representative one. Aluminum has good thermal conductivity, electrical conductivity, oxidation resistance, low density, and good ductility of cooked aluminum, which can be made into a film filament and compounded with polyester filament. Aluminum foil wire was originally used in inlay decoration or industrial, and it is called "gold and silver wire" in China. China's military "81" camouflage net is woven with polyester aluminum foil composite silk thread for anti-radar reconnaissance. Through the rational design of the basic fabric, not only can the radar wave transmittance be controlled after the network is formed, but also it can resist the external harsh conditions and play a protective role.
(2) Metallized fiber
The surface of the organic fiber is plated with a metal such as nickel, copper or diamond, and a resin such as acrylic is used as a protective film, and is called a metallized fiber in Japan. According to reports, the textile processing into a shielding cloth, the shielding rate of 1 × 1010 ~ 3 × 1010Hz can reach 99.90% ~ 99.99%, because it is conductive, can also be used to make anti-static fabrics, etc., but there are still metal film For the problem of fastness, especially the corresponding washing resistance.
(3) Pure metal fiber
Metal fibers of essential significance are fibers made entirely of metal materials, such as those made of lead, copper, aluminum, stainless steel, etc., which are the basis for application development.
Lead fiber made of lead is soft and dense, and has a wide range of uses, such as sound insulation, vibration, radiation protection and battery materials. Copper fiber has excellent electrical conductivity and thermal conductivity, and can be used for preparing conductive fabrics, conductive garments and the like. Stainless steel fiber is a fiber that is stretched from stainless steel wire and is the fastest and most widely used metal fiber in the world. Stainless steel fiber drawn filaments are filament bundles, each containing from thousands to tens of thousands of stainless steel fibers. Stainless steel fiber is flexible, 8m diameter stainless steel fiber is equivalent to 13m diameter hemp fiber; and has good mechanical properties and corrosion resistance, completely resistant to corrosion by nitric acid, phosphoric acid, alkali and organic chemical solvents; It has good properties and can be used continuously in an oxygen atmosphere at 600 ° C. It is a high temperature resistant material with good performance. Fabrics woven from stainless steel have reduced electrical resistance with increasing temperature and have excellent textile application properties.
