Toughened and cold resistant PC/PBT alloy base (original GE) 5220U resistant to UV high impact resistance and chemical resistance
PC/PBT introduction:
PC-PBT is a blend of PC and PBT, usually supplied with pellets after blending. If we simply mix the two materials directly after injection, the effect will be very poor, and there will be stratification.
The advantage of PC is that the room temperature is rigid and tough, but the thermal deformation is serious under high temperature. The disadvantages of PBT are stress cracking and high viscosity. The advantage of PBT is that its rigidity is not affected by temperature and its deformation is small. Thus, PC-PBT retains the advantages of both.
PC-PBT has higher surface hardness, higher rigidity and toughness, higher resistance to high temperature shape, and higher resistance to stress cracking; its mechanical properties are between the two.
High temperature resistant deformation is of great significance for large shell materials.
PC/PBT product features:
High toughness (even in low temperature).
Good chemical resistance.
It is not easy to cause stress cracking.
Good coating properties
Low moisture absorption rate
PC/PBT uses:
1. Electronic and electrical appliances: fuse-free breakers, electromagnetic switches, reentry transformers, household appliances handles, connectors, housing;
2. automotive field: door handle, bumper, distributor cap, fender, wire guard shell, rim cover;
3. industrial parts: OA fan, keyboard, fishing tackle, reel, parts and lampshade.
