Sustainable Plastics - March/April 2022 - 10

what's new
Reclaimed end-oflife
fishing nets are
the basis of Complēt
R nylon 6 long-fibre
composites.
continued from page 9
composite materials. The purpose will be
to replace some products that are currently
based on petrochemical plastics, as well
as improve the biodegradability of existing
bioplastics such as polylactic acid. Unlike
other polymer manufacturing processes,
the synthesis of Teysha's materials generates
zero chemical byproducts for disposal.
Its properties make it susceptible to microbial
breakdown, a desirable benefit for applications
like packaging.
Avient launches long-fibre
composites derived from endof-life
fishing nets
Avient has introduced Complēt R long-fibre-reinforced
composites, which incorporate
post-consumer recycled nylon 6 material
reclaimed from end-of-life fishing nets.
Complēt R nylon 6 long-fibre composites
provide stiff ness, strength and toughness
performance on par with standard nylon 6
long-fibre formulations using virgin resin,
giving these materials the structural capability
necessary to be used as an alternative
to metals. Using these composites as
a metal replacement also fosters significant
weight reductions along with the time and
cost savings benefits of single-step injection
moulding.
Formulations are available globally in
a standard black colour at typical weight
percentages of long glass fibre, long carbon
fibre or hybrid combinations. Levels of
post-consumer resin content vary within
the off erings, which allows end products
to meet diff erent performance and sustainability
requirements.
Tooling &
Machinery
Netstal's Elios 4500 built
for speed
Powerful and energy-eff icient, the hybrid
high-performance machines of the Elios
series are tailored for high-speed thin-wall
applications with clamping forces between
4500 and 10000 kN. Netstal's smallest machine
in the series, the Elios 4500, has now
been newly optimised. By intelligently redesigning
the drive components, Netstal has
completely eliminated the hydro mechanical
part of the drive significantly, resulting
in a purely electric drive train. The dry cycle
time has been reduced by 0.1 seconds to 1.4
seconds, reducing energy consumption, in
relation to the Euromap dry cycle, by 7 kW.
Eliminating the hydro mechanical components
for operating the toggle lever allowed
450mm to be shaved off the overall length of
the machine, saving space in the production
hall that can be used profitably elsewhere.
Single-point concentricity
extrusion tooling from Guill
US-based Guill Tool & Engineering has developed
a new single-point concentricity
extrusion crosshead that uses micro-fine
adjustment screws for precise concentricity
adjustment. The precision of concentricity
reaches 0.008 " or finer per revolution.
This single point concentricity adjustment
is a unique Guill innovation for the extrusion
of thin-walled jacketing and precision
ID/OD tubing. One adjustment bolt controls
360° of adjustment.
The optimized ELIOS
4500 with electrically
operated toggle levers .
Guill's new single-point
concentricity
extrusion
crosshead.
Features of the single-point crosshead
include a patented cam-lock deflector for
quick changeovers, with a residence time
of one minute at .5 lb/hr material flow, optimized
usage with extruders measuring ½ "
and ¾ " , and a max die ID of .250. "
Additionally, the Guill single-point crosshead
off ers great flexibility to its users. It not
only accepts both vacuum and micro-air
accessories but also is ideal for pressure
and sleeving applications. Fluoropolymer
designs are available upon request.
The new XP ExpressAGT
roll stand for
extrusion sheet and
cast applications.
Davis-Standard introduces
multiuse XP Express - AGT
roll stand
Davis-Standard has introduced the XP Express
- AGT (Active Gravity Touch) roll stand
for both sheet and cast extrusion as the latest
addition to its XP Express roll stand portfolio.
The AGT model features greater automation
and process control for the full range
of sheet (nominal 8 to 60 mil) applications
and can be integrated into an existing line.
The roll stand's inverted-down, multiroll
design facilitates improved die nip management
and handling, eff icient web cooling
and conditioning capabilities, precision roll
drive control and high-performance web path
options. In addition, it addresses low melt
strength resin delivery from die slot to nip and
expands the processing of thin-gauge sheet.
The roll stand is currently available
in widths from 36 to 80 inches (900 to
2,000mm) and with process rates up to
5,500 pounds per hour. Processors can
choose among three AGT roll stand options
depending on specific requirements. Each
option off ers a fully automated multiroll
gap nip, individual roll speed and temperature
control, enhanced heat transfer and
an adaptable pull-roll design. This is augmented
by four-point Y-axis and traverse
X-axis control to further support operator
functionality. In addition, uniform cooling
on both sides, double polishing capabilities,
reduced web stress, and consistent web
orientation and thickness control promote
high-quality flat sheets with desired clarity.
10
March/April 2022
Sustainable Plastics - March/April 2022

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