Polybutylene terephthalate (PBT) solutions.
Polybutylene terephthalate (PBT) was introduced on the market in the late 1960s, offering completely new design capabilities over other plastics available at the time. PBT is valued for its extreme strength and stiffness, excellent wear- and abrasion-resistant properties, as well as its high dimensional stability, which is considerably higher than that of POM or PA.PBT is a polyester similar to PET but its cooling and processing behavior makes it a better candidate for injection molding. PBT is used unreinforced as well as reinforced with glass or mineral fibers. Application examples for unreinforced types include injection molding and extrusion processes that can range from the manufacture of non-woven fabrics to beams, plates and cable sheathing for optical fibers.
The following list illustrates the broad range of applications for reinforced PBT: components for ignition and electrical systems in vehicles, plugs and sockets for the electrical and electronics industry. Switches, spools, engine housings and insulation, equipment housings, handles and base parts, shower heads, irons and toothbrushes are also manufactured from PBT.
Buhler has more than 10 years of experience working with PBT. The first PBT drying unit was delivered to a German customer in 1999. Other orders followed, such as a PBT SSP system for a Japanese firm.
