https://www.avient.com/products/engineered-polymer-formulations/general-engineered-formulations/maxxam-polyolefin-formulations
Maxxam™ formulations are based on polypropylene and polyethylene resins and can be filled and reinforced to satisfy the required performance characteristic.
They can be blended with glass, minerals, impact modifiers, colorants and stabilizer systems, providing customized solutions to meet specific application needs.
https://www.avient.com/products/engineered-polymer-formulations/sustainable-formulations/maxxam-rec-recycled-polyolefin-formulations
They can be filled and reinforced to satisfy required performance characteristics and can be blended with glass, minerals, impact modifiers, colorants and stabilizer systems.
https://www.avient.com/news/new-black-colorants-polyone-support-circular-economy-turn-former-waste-recyclable-packaging
Detection and sorting of carbon black-filled plastic waste in material recovery facilities is a vexing issue for the packaging and recycling industries, because the equipment relies on the reflectance of near infrared (NIR) wavelengths.
Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation
https://www.avient.com/news/avient-expands-high-performance-materials-portfolio-edgetek-toughened-ppa
The new impact-modified PPA materials are formulated in filled and unfilled grades that deliver exceptional structural integrity and impact resistance at high temperatures.
Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation and reduce carbon footprint
https://www.avient.com/sites/default/files/2020-10/luxury-closures-gravi-tech-design-guide-2.0-application-specific.pdf
Without venting, burning and no-fill areas can
occur.
The relative shear rate
is determined by the fill time.
This
pressure is high at the gate area and low at the
end of fill.
https://www.avient.com/sites/default/files/2021-11/artisan-ar7300-pre-colored-formulation-processing-guide.pdf
BASE RESIN ABS
Drying Temperature 80–90°C
Drying Time 2–3 Hours
Barrel Temperatures °C
Rear Zone 180–210
Center Zone 190–220
Front Zone 200–230
Nozzle 210–240
Mold Temperature 50–80
Screw Speed Moderate
Back Pressure 3–10 bar
Cushion 5–15 mm
Injection Speed Low to medium
Injection Pressure Moderate to high
Holding Pressure 10–30% of injection pressure
Screw Type General purpose
Screw L/D 20:1
Screw Compression Ratio 2.0:1–2.5:1
Non-return Check Valve Free flow check ring
Nozzle Type Reverse taper
Barrel Capacity 30–80% of barrel should be used
STARTUP & SHUTDOWN RECOMMENDATIONS
Purge Compound 2–3 melt flow PP or purging compound.
Venting
• Place vents at the end of fill and anywhere potential knit/weld lines will occur.
• All vents need to be vented to atmosphere.
• For circular parts, full perimeter venting is recommended.
• Cut vent depths to 0.0007″–0.0015″.
Incomplete Fill
Melt and/or mold
temperature too cold
• Increase nozzle and barrel temperatures
• Check thermocouples and heater bands
Shot size
• Increase shot size
• Adjust transfer position to 98% full
• Increase cushion
• Enlarge or widen vents and increase number of vents
• Check that vents are unplugged
• Check that gates are unplugged
• Enlarge gates and/or runners
• Perform short shots to determine fill pattern and verify
proper vent location
• Increase wall thickness to move gas trap to parting line
Brittleness
Degraded/overheated
material
• Decrease melt temperature
• Decrease back pressure
• Use smaller barrel
Gate location
and/or size
• Relocate gate to non-stress area
• Increase gate size to allow higher flow rate and lower
molded-in stress
Wet material
• Check moisture.
https://www.avient.com/sites/default/files/2020-09/surround-processing-guide-2020.pdf
Furthermore, Surround formulations offer improved performance in the areas of creep and fatigue resistance,
dimensional stability, and surface finish when compared to traditional highly-filled, short fiber formulations.
TEMPERATURE
Material Rear
Center
Front
Nozzle
Melt
Mold
Nylon 6,6
540–570
530–560
530–560
540–570
540–570
200–300
(90–150)
Nylon 6,6
30% SS
540–570
530–560
530–560
540–570
540–570
200–300
(90–150)
PBT
510–410
(265–280)
490–540
(255–280)
480–530
480–530
480–530
150–250
(65–120)
PC
14% NiCF
540–570
540–570
530–560
530–560
530–560
150–250
(65–120)
ABS
470–520
460–520
460–520
460–530
(240–275)
460–530
(240–275)
100–200
(40–90)
PP
440–480
(225–250)
440–480
(225–250)
430–470
(220–245)
420–460
(215–240)
420–460
(215–240)
125–175
(50–80)
DRYING
Material Temperature
°F (°C) Time Minimum
Moisture
Maximum
Moisture
Nylon 6,6
14% NiCF 180 (80) 4–5 hours 0.05% 0.20%
Nylon 6,6
30% SS 180 (80) 4–5 hours 0.05% 0.20%
PBT
14% NiCF 250 (120) 6-8 hours 0.02% 0.03%
PC
14% NiCF 250 (120) 3–4 hours 0.02% 0.02%
ABS
14% NiCF 200 (90) 2–4 hours 0.05% 0.10%
PP
14% NiCF 180 (80) 2–4 hours 0.20% 0.30%
Equipment
• Feed throats smaller than 2.5" may cause bridging due to pellet size
- Larger feed throats will be more advantageous with long fiber EMI shielding resins
• General purpose metering screw is recommended
- Mixing/barrier screws are not recommended
• L/D ratio
- 18:1–20:1 (40% feed, 40% transition, 20% metering)
• Low compression ratio
- 2:1–3:1
• Deep flights recommended
- Metering zone 3.5 mm
- Feed zone 7.5 mm
• Check ring
- Three-piece, free-flowing check ring
• General purpose nozzle (large nozzle tips are recommended)
- Minimum orifice diameter of 7/32"
- Tapered nozzles are not recommended for long fiber EMI shielding resins
• Clamp tonnage:
- 2.5–5 tons/in2
Gates
• Large, free-flow gating recommended
- 0.25" x 0.125" land length
- 0.5" gate depth
Runners
• Full round gate design
• No sharp corners
• Minimum of 0.25" diameter
• Hot runners can be used
PROCESSING
Screw Speed Slower screw speeds are recommended to protect fiber length
Back Pressure Lower back pressure is recommended to protect fiber length
Pack Pressure 60–80% of max injection pressure
Hold Pressure 40–60% of max injection pressure
Cool Time 10–30 seconds (depends on part geometry and dimensional stability)
PROCESS CONSIDERATIONS
Recommended – retain fiber length (maximize conductivity)
• Low shear process
• Low screw speed and screw RPM
• Slow Injection speed
• Fill to 99–100% on first stage of injection
- Reduces potential nesting of fibers at gate location
- Improves mechanical performance near gate location
- Promotes ideal fiber orientation
Resin Rich Surface
• Achieved when using a hot mold temperature and longer cure times
≥ Max mold temperature recommendation
• Improved surface aesthetic
• Reduced surface conductivity
• Could reduce attenuation performance in an assembly
Fiber Rich Surface
• Achieved when using a cold mold temperature and shorter cure times
≤ Minimum mold temperature recommendation
• Improved surface aesthetic
• Reduced surface conductivity
• Could improve attenuation performance in an assembly
www.avient.com
Copyright © 2020, Avient Corporation.
https://www.avient.com/sites/default/files/2022-07/ECCOH 5161 - OFC Blowing Application in Railways - Application Snapshot.pdf
OFC TECHNOLOGY
LEADER
M I C R O B U N D L E S I N B L O W I N G
A P P L I C A T I O N F O R R A I L W A Y S
• Strippable with fingers for easy installation/access to fibers
• High speed processing at a low wall thickness
• Low shrinkage
• Resistance to chemicals and filling compounds
• Meet XP C93-850-1-1 standard
• Re-designed cable to provide advantageous
functional and economical value
• Improved flexibility compared to PBT and PP
tubes, allowing longer blowing distances on paths
with angles of 90°
• Increased processing speed and improved ease
of installation
• Provided better cable lifetime value compared to
alternative solutions
ECCOH™ 6151 UV SEPAP Formulation
KEY REQUIREMENTS
WHY AVIENT?
https://www.avient.com/sites/default/files/2024-03/Luxury Closures Application Bulletin_Online.pdf
Avoid the use styrenic materials – Low shrinkage
PP grades provide an ABS alternative.
Utilize existing molds – Replace current ABS
solutions with low shrinkage PP grades and utilize
your existing molds
GT5200-
0013
GT7300-
0006
GT7300-
0010
PVD 2.0
GT5200-
0016
PVD 3.0
GT5200-
5025
GT7300-
5020
NATURAL FD
GT5200-
5009
BLACK SO FD
GT5200-
5044
GT5200-
5016 X2
GT7300-
5007 X1
WHITE FD
GT7300-
5003
GT5200-
5003
GRV PP-
030-IO
5068 X2
5009 X5
BLACK SO
5021
NATURAL FD
5003
BLACK FD
BLACK FD
GRV PP-
030-IO
CI GT5200-
5089
NATURAL
C GT5200-
5082 BLACK
Specific
Gravity* 2 2 2 3 1.25 1.6 1.85 2 2 2.2 2.5 2.5 3 1.20 1.90 2.2 2.50 2.50 3.0 1.20 1.20
Electroplating No Yes Possibly Possibly Possibly Yes Yes Yes No Possibly Possibly Yes No Yes Yes Yes Not tested Not tested Not tested Yes Yes
Physical Vapor
Deposition
(PVD)/Vacuum
Metallization
Possibly Possibly Yes Yes Possibly Possibly Possibly Possibly Yes Yes Yes Yes Yes Possibly Possibly Possibly Yes Yes Yes Possibly Possibly
Base
Resin PP ABS ABS PP PP ABS PP PP PP ABS ABS PP PP PP PP ABS ABS PP PP rPP (ocean
bound) rPP (PCR)
Base
Color White Black Grey Black Natural Natural Black Beige Black White Black Black Black Black Black Natural/
Beige Black Black Black Natural Black
FDA
Compliant* Yes Yes Yes Yes No Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes Yes No No
Filled Mineral Mineral Mineral Metallic Mineral Mineral Mineral Mineral Metallic Mineral Metallic Metallic Metallic Mineral Mineral Mineral Metallic Metallic Metallic Mineral Mineral
Region
Produced
North
America
North
North
North
America Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe Europe
Copyright © 2024, Avient Corporation.
https://www.avient.com/sites/default/files/2020-10/tpe-injection-molding-guide.pdf
Polypropylene (PP) carriers are recommended for the harder SEBS formulations
PP carrier is not recommended for
softer grades, as the compound hardness will be affected.
FLOW MARKS
Back fills
Shadowing
Folds
Filling from thin to
thick sections.