Properties of thermoplastic composites
China's thermoplastic resin-based composite materials began in the late 1980s, nearly 10 years has made rapid development in 2000, the output reached 120,000 tons, accounting for about 17% of the total output of resin-based composite materials, the use of matrix materials Still PP, PA-based, reinforced materials to fiberglass-based, a small amount of carbon fiber, in the thermoplastic composite materials have not been a major breakthrough, there is still a gap with the developed countries
Talc-filled PP has high rigidity, high strength, excellent heat aging resistance and cold resistance. Talc powder reinforced PP has important applications in interior decoration, such as for ventilation system parts, dashboards and automatic brake control bars, such as the United States HPM company with 20% talc filled PP made of honeycomb structure sound Ceilings and cars of the rocker lifter Coil shell.
? Mica composite material with high rigidity, high heat distortion temperature, low shrinkage, low flexibility, dimensional stability and low density, low price and other characteristics, the use of mica / polypropylene composite materials can be made car dashboard, headlamp protection ring Plate cover, door rails, motor fans, shutters and other components, the use of the damping of the material can be made audio parts, the use of its shielding can be made battery box.
The thermoplastic resin matrix composites were developed in the 1980s, mainly including long fiber reinforced pellets (LFP), continuous fiber reinforced prepreg (MITT) and glass fiber felt reinforced thermoplastic composites (GMT). According to the different requirements, the resin matrix mainly PP, PE, PA, PBT, PEI, PC, PES, PEEK, PI, PAI and other thermoplastic engineering plastics, fiber types include glass fiber, carbon fiber, aramid fiber and boron fiber and all possible Of the fiber varieties. With the thermoplastic resin-based composite technology continues to mature and recyclable advantages, the varieties of composite materials developed rapidly, Europe and the United States developed thermoplastic resin matrix composite materials have accounted for more than 30% of the total amount of resin-based composites.
?High-performance thermoplastic resin-based composite materials to the majority of injection, the base to PP, PA-based. Products are pipe fittings (elbows, tees, flanges), valves, impellers, bearings, electrical and automotive parts, extrusion molding pipes, GMT molded products (such as jeep seat supports), car pedals, seats and so on. The application of glass fiber reinforced polypropylene in automobiles includes ventilation and heating systems, air filter housings, gearbox covers, seat frames, fender pads, and transmission belt covers.
