by using the characteristics of
classification
Plastic Product Categories
According to name
different types of plastics used feature, usually plastic into common plastics,
engineering plastics and specialty plastics three types.
① GE Plastics
Generally refers to
the production of large, versatile, forming a good, cheap plastic. GE Plastics
has five varieties, namely polyethylene, polypropylene, polyvinyl chloride,
polystyrene and ABS. They are thermoplastics.
② plastic
Generally it refers
to can withstand external force, has good mechanical properties and resistance
to high and low temperature properties, good dimensional stability, can be used
as plastics engineering structures, such as polyamide, polysulfone and the
like.
In turn divided
into general-purpose engineering plastics engineering plastics and special
engineering plastics into two categories.
General engineering
plastics include: polyamides, polyoxymethylene, polycarbonate, modified
polyphenylene ether, thermoplastic polyester, ultra high molecular weight
polyethylene, methylpentene polymer, vinyl alcohol copolymer.
Special engineering
plastics have crosslinked non-crosslinked type of points. Crosslinked include:
polyamino bismaleamic, poly triazine, crosslinked polyimide, heat-resistant
epoxy resin and other means. Non-crosslinked include: polysulfone, polyether
sulfone, polyphenylene sulfide, polyimide, polyether ether ketone (PEEK), etc.
③ special
plastic: Generally refers to a special function, it can
be used for plastic aviation, aerospace and other special applications. Such as
fluorine plastic and silicone has outstanding high temperature,
self-lubricating and other special functions, reinforced plastics and foams
with special properties of high strength, high damping, these plastics are all
areas of specialty plastics.
a strong plastic:
reinforced plastic material in the shape can be divided into granular (eg Gaisu
reinforced plastics), fibers (such as glass fiber or glass cloth-reinforced
plastic), the sheet (such as mica reinforced plastics) three. Press material
can be divided Burkina reinforced plastic (such as rags to enhance or asbestos
reinforced plastics), inorganic mineral-filled plastic materials (such as
quartz or mica filled plastic), fiber reinforced plastics (such as carbon fiber
reinforced plastics) three.
b Foam: Foam can
be divided into rigid, semi-rigid and flexible foams three. Rigid foam no
flexibility, compression great hardness, only up to a certain stress was
deformed, not restitution after stress relief; soft foam full flexibility,
compression hardness is small, it is easily deformed, stress relief after
energy restitution, residual deformation small; hard between his soft foam
semi-rigid foam between flexibility and other properties.
