Polycarbonates, known by the trademarked names Lexan, Makrolon,
and others, are a particular group of thermoplastic polymers.
They are easily worked, moulded, and thermoformed. Because of
these properties, polycarbonates find many applications.
Polycarbonate is the first commercially useful thermoplastic
material which incorporates the carbonate radical as an integral
part of the main polymer chain. Polycarbonate derived from BPA
is a very durable material. Although it has high impact-
resistance. The characteristics of polycarbonate are quite like
those of polymethyl methacrylate (PMMA, acrylic), but
polycarbonate is stronger, usable in a wider temperature range.
This polymer is highly transparent to visible light and has
better light transmission characteristics than many kinds of
glass. Unlike most thermoplastics, polycarbonate can undergo
large plastic deformations without cracking or breaking. As a
result, it can be processed and formed at room temperature using
sheet metal techniques, such as forming ben