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Orbit Design Materials
In Orbit Design, Thermoplastic Injection Molding Is
Our Specialty
Orbit
Design
Works
with
almost
every
thermoplastics
material
in
the
industry.
Orbit
Design
ability
to
work
with
these
different
materials
developed
with
over
35 years of manufacturing experience.
Here
we
leave
a
brief
description
of
the
materials,
with
which
Orbit
Design
works daily in our plastic injection molding products.
Polyimide
Polyimide
(sometimes
abbreviated
PI
)
is
a
polymer
of
imide
monomers.
Polyimides
have
been
in
mass
production
since
1955.
With
their
high
heat-
resistance,
polyimides
enjoy
diverse
applications
in
roles
demanding
rugged
organic
materials,
e.g.
high
temperature
fuel
cells,
displays,
and
various
military
roles.
A
classic
polyimide
is
Kapton,
which
is
produced
by
condensation
of pyromellitic dianhydride and 4,4'-oxydianiline.
Polycarbonate
Polycarbonates
(
PC
)
are
a
group
of
thermoplastic
polymers
containing
carbonate
groups
in
their
chemical
structures.
Polycarbonates
used
in
engineering
are
strong,
tough
materials,
and
some
grades
are
optically
transparent.
They
are
easily
worked,
molded,
and
thermoformed.
Because
of
these
properties,
polycarbonates
find
many
applications.
Polycarbonates
do
not
have
a
unique
resin
identification
code
(RIC)
and
are
identified
as
"Other",
7
on
the
RIC
list.
Products
made
from
polycarbonate
can
contain
the
precursor
monomer
bisphenol
A
(BPA).
Acrylonitrile Butadiene Styrene
Acrylonitrile
butadiene
styrene
(
ABS
)
(chemical
formula
(C8H8)x·(C4H6)y·(C3H3N)z)
is
a
common
thermoplastic
polymer.
Its
glass
transition
temperature
is
approximately
105
°C
(221
°F).[2]
ABS
is
amorphous
and
therefore has no true melting point.
ABS
is
a
terpolymer
made
by
polymerizing
styrene
and
acrylonitrile
in
the
presence
of
polybutadiene.
The
proportions
can
vary
from
15
to
35%
acrylonitrile,
5
to
30%
butadiene
and
40
to
60%
styrene.
The
result
is
a
long
chain
of
polybutadiene
criss-crossed
with
shorter chains of poly(styrene-co-acrylonitrile).
Polyphthalamide
Polyphthalamide
(aka.
PPA
,
High
Performance
Polyamide)
is
a
subset
of
thermoplastic
synthetic
resins
in
the
polyamide
(nylon)
family
defined
as
when
55%
or
more
moles
of
the
carboxylic
acid
portion
of
the
repeating
unit
in
the
polymer
chain
is
composed
of
a
combination
of
terephthalic
(TPA)
and
isophthalic
(IPA)
acids.
The
substitution
of
aliphatic
diacids
by
aromatic
diacids
in
the
polymer
backbone
increases
the
melting
point,
glass
transition
temperature,
chemical
resistance and stiffness.
PPA
based
resins
are
molded
into
parts
to
replace
metals
in
applications
requiring
high
temperature
resistance
such
as
automotive
powertrain
components,
the
housing
for
high
temperature
electrical
connectors
and
many
other uses.
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