Thermoplastics
Thermoplastic
materials are melt processable, that
is they are formed when the are in a
melted or viscous phase. This generally
means they are heated, formed, then
cooled in their final shape. Depending
upon their chemistry, thermoplastics
can be very much like rubber, or as
strong as aluminum. Some high temperature
thermoplastic materials can withstand
temperature extremes of up to 600 F,
while others retain their properties
at -100 F. Thermoplastics do not oxidize
and some materials have no known solvents
at room temperature. Most thermoplastic
materials are excellent electrical and
thermal insulators. On the other hand
thermoplastic composites can be made
to be electrically conductive with the
addition of carbonor metal fibers.
In general
the combination of light weight , high
strength, and low processing costs make
thermoplastics well suited to many applications.
The most common methods of processing
thermoplastics are injection molding,
extrusion , and
thermoforming.
Thermoplastics
include:
ABS
(Acrylanitrile Butadiene Styrene)
ASA
(acrylic-styrene-acrylonitrile) Alloys
EVA
Ethylene Vinyl Acetate
LCP
(Polyester Liquid Crystal Polymer)
PBT
Polyester (Polybutylene Terepthalate)
PEEK
Polyetheretherkeytone
PEI
Polyetherimid (Ultem)
Polyethylene
High Density
Polyethylene
Medium Density
PET
Polyester (Polyethylene Terepthalate)
Polyimide
Thermoplastic (Aurum)
PPA
Polyphthalamide (Amodel)
PPO
Modified Polyphenylene Oxide (Noryl)
PPS
Polyphenylene Sulfide
Polystyrene
High Impact HIPS
Polystyrene
Medium Impact MIPS
PVC
Polyvinyl Chloride Rigid
PVDF
Polyvinylidene Fluoride (Kynar)
SAN
Styrene Acrylonitrile
TPE Thermoplastic
Elastomers
TPR Thermoplastic
Rubbers
