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Instead, the outer glass is recycled and the PVB is reclaimed and reprocessed for various uses, including an alternative raw material source for polymers.
Avient’s unique formulation expertise allows the supply of reprocessed, high-quality, non-toxic PVB to be upcycled into more sustainable TPEs with excellent properties.
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These polymers, together with Avient’s application design and prototyping services, allow for faster prototyping and shorter lead times compared to ceramics traditionally used in telecom applications.
About Avient
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With high strength, stiffness and dimensional stability, these specialty materials are ideal for the most demanding applications that span multiple end markets, including outdoor sports, aerospace, transportation, security and prosthetics.
plans to present additional details about composite innovation and these projects as one of several high-growth technology platforms that underpin the company's expectation of delivering double digit EPS growth in 2018 and beyond.
NYSE: POL) is a premier provider of specialized polymer materials, services and solutions.
https://www.avient.com/sites/default/files/2022-06/Maxxam FR Injection Molding Processing Guide.pdf
Drying non-halogenated materials is suggested.
2 hours @ 100 (38)
Moisture Range
(%)
Not required
Vents should be placed at the intersection of each 90° bend in the runner
system off of the cold slug well and vented to atmosphere
Black Specks
Contamination
• Purge barrel with general purpose PP
• Verify correct nozzle is being used
• Pull screw for cleaning
Degraded/overheated
material
• Decrease melt temperature
• Decrease injection speed
• Use appropriately sized barrel
Brittleness
Degraded/overheated material
• Decrease melt temperature
• Decrease injection speed
• Use appropriately sized barrel
Gate location and/or size
• Relocate gate to nonstress area
• Increase gate size to allow higher flow rate and
lower molded-in stress
Burning
Process related
Mold design • Clean, widen and increase number of vents
• Increase gate size to reduce shear
Fibers/Minerals on
Surface or Uneven
Surface Appearance
Melt temperature too low
• Increase injection speed
Insufficient packing • Increase hold pressure and time
Flash
Injection pressure
too high
• Decrease injection pressure
• Increase clamp pressure
• Increase transfer position
Excess material volume
• Decrease pack pressure
• Decrease shot size
Melt and/or mold too hot
• Decrease screw speed
Loose clamp • Reset mold height
• Increase clamp tonnage
Troubleshooting Recommendations
Incomplete Fill
Melt and/or mold too cold
• Increase nozzle and barrel temperatures
Mold design
• 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
Shot size • Adjust transfer position to 98% full
Nozzle Drool Nozzle temperature too hot
• Decrease nozzle temperature
• Increase screw decompression
Shrink
Too much shrink • Increase cooling time
Too little shrink • Decrease cooling time
Sink Marks
Part geometry too thick • Reduce wall thickness
• Reduce rib thickness
Melt too hot • Decrease nozzle and barrel temperatures
Insufficient material
volume
• Increase packing pressure
Troubleshooting Recommendations (continued)
Sticking in Mold
Overfilled cavity
• Decrease injection rate and pressure
• Decrease hold pressure
• Decrease cooling time
Mold design • Increase draft angle
• Polish cores in direction of ejection
Part is too hot
• Increase cooling time
Warp
Process related
• Increase cooling time
• Increase pack pressure
• Increase pack time
Mold design • Inspect for non-uniform mold cooling
Part design • Inspect for non-uniform wall thickness
Temperature control unit
incorrect temperature
• Check settings
• Inspect thermocouple
Weld Lines
Melt front temperatures
are too low
• Increase pack and hold pressure
Mold design
• Increase gate size
• Perform short shots to determine fill pattern
and verify proper vent location
• Add vents and/or false ejector pin
• Move gate location
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Avient makes no warranties or
guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.
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Polymer Additives
Our cutting-edge polymer additives can add function, performance and even profitability.
Browse and download our literature to learn more about Avient solutions and services.
https://www.avient.com/sites/default/files/2020-12/therma-tech-processing-guide.pdf
Avient makes no representations, guarantees, or warranties of any kind with respect to the information contained in this document about its accuracy, suitability
for particular applications, or the results obtained or obtainable using the information.
Avient makes no warranties or
guarantees respecting suitability of either Avient’s products or the information for your process or end-use application.
AVIENT MAKES NO WARRANTIES, EXPRESS
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https://www.avient.com/knowledge-base/article/designing-parts-meet-sustainability-goals?rtype[]=1164
Engineered Polymer Services
Lightweighting: Engineered polymer materials designed with a high strength-to-weight ratio, have similar structural integrity as traditional materials, but can be lighter in weight.
Material changes occur when a sustainable polymer can provide a similar performance to petroleum-based polymers.
https://www.avient.com/knowledge-base/article/designing-parts-meet-sustainability-goals
Engineered Polymer Services
Lightweighting: Engineered polymer materials designed with a high strength-to-weight ratio, have similar structural integrity as traditional materials, but can be lighter in weight.
Material changes occur when a sustainable polymer can provide a similar performance to petroleum-based polymers.