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DuPont? Delrin? POM E
xtends Scope of Use of Pla
stics in Vehicle Interiors
文章 文章DuPont? Delri
n? POM extends scope of us
e of plastics in vehicle i
nteriors New low-emis
sion DuPont? Delrin? 300TE
acetal resin (POM) is the
first impact-modified POM
from DuPont to meet the a
utomotive industry's deman
ding requirements for the
use of plastics in vehicle
interiors.This extend
s the scope of application
for Delrin? acetal resins
in vehicles to include pl
astic components in interi
ors, where high resistance
to impact load is require
d.This ranges from ext
ensive, visible parts to s
mall, functional component
s such as levers and gears
, and now also includes ap
plications in automotive i
nteriors, for instance in
the seating area, where re
sistance to high impact lo
ads is required.Delr
in? Property ComparisonG
raph comparing properties
of several grades of DuPon
t? Delrin?.VIEW MEDIA
"In the light of rising d
emand for quality among co
nsumers, the automotive in
dustry sets extremely low
limits for the emission of
volatile organic compound
s (VOC)," said Hans-Herman
n Kirner, material develop
ment manager for automotiv
e interiors at DuPont. "Te
sts of samples of the new
impact-modified Delrin? 30
0TE, conducted by the reno
wned independent Fresenius
Institute in Herten, Germ
any, revealed formaldehyde
emissions of 1.0 mg/m2 an
d lower. Such results are
considerably below the lim
it of 2.0 mg/m2 set by lea
ding German OEMs and mean
that the new material meet
s the world's most stringe
nt requirements with regar
d to VOC emissions in this
sector."With a melt f
low index (MFI190/2,16) of
6 g/10min, Delrin? 300TE
bridges the gap between De
lrin? 100T (MFI = 2), whic
h combines high viscosity
with very high impact resi
stance, and the medium vis
cosity, stiffer Delrin? 50
0T (MFI = 12).DuPont?
Delrin? 300TE is considera
bly more impact resistant
than Delrin? 300PE, a prev
iously launched low-emissi
on grade that also is suit
able for use in automotive
interiors. It achieves a
notched impact strength at
23°C of 18 kJ/m2 (Delrin?
300PE: 11 kJ/m2). At –30°
C, the notched impact stre
ngth of the new 300TE grad
e is still as high as 10 k
J/m2 (300PE: 8 kJ/m2).
As with all members of the
acetal resin family from
DuPont, new Delrin? 300TE
also combines high strengt
h, hardness and stiffness
over a broad temperature r
ange with high abrasion re
sistance and a low coeffic
ient of friction, a high h
eat deflection temperature
, good electrical and diel
ectric properties and high
dimensional stability.
Kirner adds: "Thanks to i
ts high-melt flow, thin-wa
lled parts with long flow
paths — for instance the s
truts used in headrests —
are among the principal ar
eas for developments in De
lrin? 300TE. In general al
l POM grades are suitable
for use in low-noise and l
ow-friction control and dr
ive systems.” Additional l
ow-emission grades for del
icate, small parts are in
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