942141999-5

942141999-5 is a type of engineering plastic polyetherimide, it is a thermoplastic resin composed of aromatic, polyimide, amide and imidization, which has good electrical insulation, flame resistance and mechanical properties. 942141999-5 application field and working principle have received a great attention, its overall performance characteristics is superior to traditional engineering plastics, which has been widely used in the electrical, electronic, aerospace and other industries.The electrical performance of 942141999-5 is good, mainly because of its high breakdown voltage, at least ten times higher than the commonly used engineering plastics , so it can be used as wiring insulating materials. With its good flame retardancy, 942141999-5 can be used as shell materials for aircraft and aerospace equipments. Its flexibility is comparable with the traditional engineering plastics, and its rigidity and strength are far exceeded. 942141999-5 can also be used as wear and corrosion resistant structural parts in industrial products, such as in bearings and gears.The working principle of 942141999-5 is mainly related to its molecular structure. Its polymer backbone has three-dimensional network structure, and it has strong interface connecting force, which can ensure its heat stability, electrical insulation and resistance to ultraviolet radiation. In addition, due to the large number of hydrogen atoms present, it has good performance in anti-corrosion, wear resistance and thermal deformation.In the actual production process, 942141999-5 molecular chain will be crosslinked to form three-dimensional network structure, which is good for its mechanical properties, but because of the higher crosslinking density and the higher temperature stability of 942141999-5, it also brings the disadvantage that it is difficult to process. Generally 942141999-5 used in the production need to be fully pre-dried, and then melt and shape. For injection molding, due to the great different of material shear rate and difficulty of crosslinking, a higher process temperature and injection speed is needed. At present, the molding of 942141999-5 is different from the traditional plastic molding technology, it requires a different production environment. For example, the annealing temperature of mold should be higher than 200 ℃, and the temperature around the mold should also be higher than 200 ℃, otherwise the deformation will be serious. The later cooling process should be of appropriate speed, too fast cooling might lead to cracking.At the same time, in the production practice process of 942141999-5, attention should be paid to its poor oil-soluble properties. During it processing, lubrication should be selected carefully, and in the plasticizer can not be used, otherwise it will cause a large reduction of mechanical properties and other changes.In summary, 942141999-5 application field and working principle have attracted a great attention in recent years, it has better overall performance than traditional engineering plastics. In the actual manufacturing process, attention should be paid to the appropriate temperature, cooling speed and selection of lubricants, etc.