Description of Polyprpene.
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| Description of Polyprpene. |
PP is an inexpensive, ductile, low strength material with
reasonable outdoor performance. The material surface is soft wax-like and
scratches easily.Stiffness and strenght are often improved using reinforcement of glass, chalk
or talc. The colour is opaque and white, but it can be dyed in many colours.,In many ways, PP is similar to HDPE, but it is stiffer and melts at 165-170 C.
PP can be manufactured by all the methods used for thermoplastics.
Polypropylene (PP), also known as polypropene, is a thermoplastic
polymer used
in a wide variety of applications including packaging and labeling, textiles (e.g., ropes, thermal
underwear and carpets), stationery, plastic parts and reusable containers of
various types, laboratory equipment, loudspeakers,
automotive components, and polymer
banknotes. An addition polymer made from the monomer propylene, it
is rugged and unusually resistant to many chemical solvents, bases and acids.
Polypropylene is a plastic polymer with the
chemical formula C3H6. It is used in many different settings, both in industry
and in consumer goods, and it can be used both as a structural plastic and as a
fiber. This plastic is often used for food containers, particularly those that
need to be dishwasher safe.
The melting point of
polypropylene is very high compared to many other plastics, at 320°F (160°C),
which means that the hot water used when washing dishes will not cause dishware
made from this plastic to warp. This contrasts with polyethylene,
another popular plastic for containers, which has a much lower melting point.
Polypropylene is also very easy to add dyes to, and it is often used as a fiber
in carpeting that needs to be rugged and durable, such as that for use around
swimming pools or on miniature golf courses. Unlike nylon, which is also often
used as a fiber for rugged carpeting, it doesn't soak up water, making it ideal
for uses where it will be constantly subject to moisture.
Research is ongoing with polypropylene, as makers experiment
with different methods for synthesizing it. Some of these experiments yield the
promise of exciting new types of plastic, with new consistencies and a
different feel from the fairly rigid version that most people are used to.
These new elastic versions are very rubbery, making them even more resistant to
shattering and opening up many different uses for an already pervasive plastic.
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