Liquid crystal polymer (LCP) introduces the basics of plastic
LCP, the Chinese name is called liquid crystal polymer. It is a new type of polymer material, generally present in the molten state when the liquid crystal. Such materials have excellent heat resistance and molding processability.
LCD can be divided into lyotropic liquid crystal polymers and thermotropic liquid crystalline polymers. The former showed a liquid crystalline state in the solvent, which was due to temperature changes in liquid crystal state. Thermotropic liquid crystalline polymer is lyotropic liquid crystal polymer, after following the rise of its comprehensive performance, and capable of injection molding, extrusion molding. Liquid crystal polymer main chain per molecule rigid, molecules piling up close, and a high degree of orientation in the molding process, and therefore have a linear expansion coefficient, low mold shrinkage and very prominent strength and elastic modulus and excellent resistance thermal resistance, high load deformation temperature, and some can be as high as more than 340 ℃. LCP also has excellent chemical resistance and air tightness, in addition, some liquid crystal polymers have some special features, such as optical liquid crystal polymers, liquid crystal polymer membrane function and biological polymers such as liquid crystal. General thermotropic liquid crystal polymer has a good camp, mobility, easy processing and. The molding has a unique liquid crystal polymer skin-core structure, resin fiber nature itself, in the molten state with a high degree of direction, it can play the effect of fiber. This is the most striking features of liquid crystal polymers. In this research, China is still in infancy stage, there is little information on the content of the literature in this area, currently only Japan, the United States, Britain and a few other countries in the volume.
Liquid crystal polymer is mainly used in: because of its high strength, high stiffness, high temperature, very good electrical insulation, etc., are used in electronic, electrical, fiber optics, automotive and aerospace industries. Liquid crystal fibers made of nets can be done, bullet-proof clothing, sporting goods, brake pads, optical fiber materials, a few shows, can also be made into film for printing soft lines, food packaging. Thermotropic liquid crystalline polymers can be made of polymer blend with a variety of plastic materials, the liquid crystal polymer blends of fiber-reinforced role to play, you can greatly improve the strength, rigidity and heat resistance.
this Information from Wishsino Plastic Injection Molding Company.
