They can be filled and reinforced to satisfy required performance characteristics and can be blended with glass, minerals, impact modifiers, colorants and stabilizer systems.  

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

In 2014, it was spun off from Closure Systems International (CSI), and currently produces over three billion aluminum closures annually in 28 and 30 millimeter diameters suitable for any type of still, carbonated or alcoholic beverage packaged in glass, PET or aluminum bottles. Sealing of reusable glass bottles with rim imperfections presents an even greater challenge compared to sealing of one-way, disposable bottles. Avient offers GLS TPE cap liner formulations that are suitable for aqueous, acidic and low alcohol beverages processed under ambient, pasteurized or hot fill conditions.

The filled and unfilled grades are also highly customizable to achieve a wide range of properties and solve application challenges. KEY CHARACTERISTICS • High-temperature performance • Excellent impact resistance • Decreased moisture absorption compared to PA66 • Heat stabilized for long-term thermal aging • Enhanced chemical resistance • Customizable formulations in filled and unfilled grades MARKETS & APPLICATIONS The combined performance characteristics make Edgetek Toughened PPA ideal for a range of rigid engine applications. Leveraging Avient’s material science expertise, Edgetek Toughened PPA formulations can be customized using various glass loading or impact modifier levels to meet specific application needs.

Venting • Place vents at the end of fill and anywhere potential knit/weld lines will occur Cut vent depths to: - PPA Compounds: 0.0015"–0.0025" depth and 0.250" width - PC Compounds: 0.002"–0.004" depth and 0.250" width - PSU Compounds: 0.003"–0.004" depth and 0.250" width - PES Compounds: 0.003"–0.004" depth and 0.250" width - PPS Compounds: 0.002"–0.003" depth and 0.250" width - Acetal Compounds: 0.0015" minimum depth and 0.250" width - PEEK Compounds: 0.002"–0.004" depth and 0.250" width - Nylon Compounds: 0.002" minimum depth and 0.250" width • Increase vent depth to 0.060" (1.5mm) at 0.250" (4.0mm) away from the cavity and vent to atmosphere. PROBLEM CAUSE SOLUTION Incomplete Fill Melt and/or mold temperature too cold Mold design Shot Size • Increase nozzle and barrel temperatures • Increase mold temperature • Increase injection speed • Increase pack and hold pressure • Increase nozzle tip diameter • Check thermocouples and heater bands • 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 • Increase shot size • Increase cushion Brittleness Melt temperature too low Degraded/Overheated material Gate location and/or size • Increase melt temperature • Increase injection speed • Measure melt temperature with pyrometer • Decrease melt temperature • Decrease back pressure • Use smaller barrel/excessive residence time • Relocate gate to nonstress area • Increase gate size to allow higher flow speed and lower molded-in stress Fibers on Surface (Splay) Melt temperature too low Insufficient packing • Increase melt temperature • Increase mold temperature • Increase injection speed • Increase pack and hold pressure, and time • Increase shot size • Increase gate size Sink Marks Part geometry too thick Melt temperature too hot Insufficient material volume • Reduce wall thickness • Reduce rib thickness • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase shot size • Increase injection rate • Increase packing pressure • Increase gate size Flash Injection pressure too high Excess material volume Melt and/or mold temperature too hot • Decrease injection pressure • Increase clamp pressure • Decrease injection speed • Increase transfer position • Decrease pack pressure • Decrease shot size • Decrease injection speed • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease screw speed TROUBLESHOOTING RECOMMENDATIONS PROBLEM CAUSE SOLUTION Excessive Shrink Too much orientation • Increase packing time and pressure • Increase hold pressure • Decrease melt temperature • Decrease mold temperature • Decrease injection speed • Decrease screw rpm • Increase venting • Increase cooling time Not Enough Shrink Too little orientation • Decrease packing pressure and time • Decrease hold pressure • Increase melt temperature • Increase mold temperature • Increase injection speed • Increase screw rpm • Decrease cooling time Burning Melt and/or mold temperature too hot Mold design Moisture • Decrease nozzle and barrel temperatures • Decrease mold temperature • Decrease injection speed • Clean, widen and increase number of vents • Increase gate size or number of gates • Verify material is dried at proper conditions Nozzle Drool Nozzle temperature too hot • Decrease nozzle temperature • Decrease back pressure • Increase screw decompression • Verify material has been dried at proper conditions Weld Lines Melt front temperatures too low Mold design • Increase pack and hold pressure • Increase melt temperature • Increase vent width and locations • Increase injection speed • Increase mold temperature • Decrease injection speed • 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 Warp Excessive orientation Mold design • Increase cooling time • Increase melt temperature • Decrease injection pressure and injection speed • Increase number of gates Sticking in Mold Cavities are overpacked Mold design Part is too hot • Decrease injection speed and pressure • Decrease pack and hold pressure • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase cooling time • Increase draft angle • Decrease nozzle and barrel temperatures • Decrease mold temperature • Increase cooling time TROUBLESHOOTING RECOMMENDATIONS Note: These are general processing conditions.

AUTOMOTIVE OEM T A I L G A T E T R I M • Reduce part weight • Suitable solution for PP talcum-filled material • Class A surface finish • Compatible with core-back injection molding process • Offered a broad portfolio of solutions • Provided technical support to help with product selection and processing parameters • Reduced part weight by 18% • Decreased cycle time by 8% • Enabled good surface appearance for the tailgate trim Hydrocerol™ Chemical Foaming Agents KEY REQUIREMENTS WHY AVIENT?

INJECTION RATE The mold cavity needs to be filled at high speed to maintain a high pressure until the end-of-fill and ensure that the dispersed gas bubbles create the necessary expansion after the pressure drop at the end of the injection process. The sliding back of the mold cavity at the end of fill allows a greater pressure drop and herewith more expansion. Once the cavity is filled, the mold opens, or one of the sides has a slide, to allow the expansion of the gas-loaded compound.

METAL REPLACEMENT COMBINES METAL’S STRENGTH WITH PLASTIC’S LIGHT WEIGHT CASE STUDY: COMPLĒT™ LONG GLASS FIBER REINFORCED COMPOSITE Ch all en ge A cc ep te d. With lightweighting benefits and design freedom, this high-end composite was shown in mold filling and FEA analysis to maintain the reliability and strength of metal. Using the new Complēt long glass fiber nylon formulation, the redesigned yoke underwent testing at Bettcher to simulate 500,000 run cycles.

They can be filled and reinforced or blended with glass, minerals, impact modifiers, colorants, and stabilizer systems to satisfy the required performance characteristics, including flame retardant performance.     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 

Avient identified its Complēt™ long glass fiber reinforced nylon composite as the right material to deliver the required strength and enhanced performance. Avient conducted virtual prototyping, such as mold filling and finite element analysis (FEA), on a redesigned yoke, while Bettcher conducted testing on a physical prototype to simulate a half million use cycles. Examples include:  •    Barrier technologies that preserve the shelf-life and quality of food, beverages, medicine and other perishable goods through high-performance materials that require less plastic •    Light-weighting solutions that replace heavier traditional materials like metal, glass and wood, which can improve fuel efficiency in all modes of transportation  •    Breakthrough technologies that minimize wastewater and improve the recyclability of materials and packaging across a spectrum of end uses