https://www.avient.com/sites/default/files/2020-09/surround-processing-guide-2020.pdf
TEMPERATURE Material Rear °F (°C) Center °F (°C) Front °F (°C) Nozzle °F (°C) Melt °F (°C) Mold °F (°C) Nylon 6,6 14% NiCF 540–570 (280–300) 530–560 (275–290) 530–560 (275–290) 540–570 (280–300) 540–570 (280–300) 200–300 (90–150) Nylon 6,6 30% SS 540–570 (280–300) 530–560 (275–290) 530–560 (275–290) 540–570 (280–300) 540–570 (280–300) 200–300 (90–150) PBT 14% NiCF 510–410 (265–280) 490–540 (255–280) 480–530 (250–275) 480–530 (250–275) 480–530 (250–275) 150–250 (65–120) PC 14% NiCF 540–570 (280–300) 540–570 (280–300) 530–560 (275–290) 530–560 (275–290) 530–560 (275–290) 150–250 (65–120) ABS 14% NiCF 470–520 (240–270) 460–520 (240–270) 460–520 (240–270) 460–530 (240–275) 460–530 (240–275) 100–200 (40–90) PP 14% NiCF 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/2022-11/PREPERM RF Materials 1-pager.pdf
RADIO FREQUENCY MATERIALS Maximize your radio frequency (RF) performance with PREPERM™ materials OPTIMAL RF PROPERTIES • Well-controlled dielectric constant range 2.55–23 • Ultra-low loss even at mmWave frequencies • Stable performance even up to 220 GHz SPEED UP YOUR CONCEPT VALIDATION WITH • Avient Design services • Filaments for 3D printing FROM PROTOTYPING TO MASS PRODUCTION • Injection molding process enables flexible product designs • Scalable production • Customized sheets in high volumes • Consistent quality in mass production • Excellent total cost performance compared to traditional materials PREPERM™ IS A SUSTAINABLE CHOICE Products’ life-cycle and environmental footprint are important factors for designers.
PREPERM helps to design more sustainable products.
Isotropic and consistent PREPERM materials are designed for many RF designs such as antennas, radomes, resonators or filters.
https://www.avient.com/sites/default/files/resources/HIGH_PERFORMANCE_CLEAR_THERMOPLASTICS_ELASTOMER.pdf
We will first discuss the important design parameters that affect the clarity and properties of the TPE compounds.
Surface smoothness of both injection molded and extruded products is affected by the rheology and interface shear stress of the system.
Mechanical properties such as tensile and tear are specified design requirement.
https://www.avient.com/sites/default/files/2020-11/gls-indoor-grips-translation-application-bulletin.pdf
It follows, then, that indoor household products designed to make that time more enjoyable tend to grab market share.
In addition to their use in standalone applications, TPEs can be overmolded onto a rigid plastic grip in an injection molding process to create a distinctive, cushioned feel without compromising the stiffness and strength of the underlying structure.
These enhanced products are typically priced higher than standard designs.
https://www.avient.com/sites/default/files/2020-08/colormatrix-lactra-sx-product-bulletin_0.pdf
Lactra SX enables light blocking in single PET layer bottles, and offers the added advantage of design freedom.
Both paperboard and multilayer polymers restrict design freedom, so that the packaging is often less than ergonomic.
The simplicity of the monolayer injection process can also lead to reduced production cost and has the potential to offer lighter-weight bottles due to fewer restrictions in bottle wall thickness for single layer constructions.
https://www.avient.com/sites/default/files/2022-11/Color Trends in Pet Products.pdf
Colorful patterns inject practical pet items with a sense of personality and humor.
Be fearless and embrace the mood-boosting potential of color in your designs.
We provide samples to so you’ll be sure you’ve selected the best solution for your design and brand.
https://www.avient.com/news/avient-introduces-cesa-fiber-additives-heat-preservation-help-meet-fashion-design-s-functional-needs
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Avient Introduces CESA™ Fiber Additives for Heat Preservation to Help Meet Fashion Design’s Functional Needs
Avient Introduces CESA™ Fiber Additives for Heat Preservation to Help Meet Fashion Design’s Functional Needs.
https://www.avient.com/sites/default/files/2023-09/Comple_t LFT Wheelchair Caster Case Study.pdf
This groundbreaking design allowed the wheelchairs to glide smoothly over obstacles, akin to airplane landing gear.
THE SOLUTION Moving away from machining, the Frog Legs team embraced injection molding, enabling them to create more intricate shapes.
Using PlastiComp™ Complēt™ carbon fiber composites offered remarkable design flexibility.
https://www.avient.com/news/avient-present-lightweighting-design-innovation-and-sustainable-additive-solutions-plastics-automotive-engineering-conference
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Avient to Present on Lightweighting Design Innovation and Sustainable Additive Solutions at the Plastics in Automotive Engineering Conference
The first, titled Lightweight Design Innovation: A Case Study of 20% Weight and CO2 Emission Reduction in Door Panels, offers insights into achievable weight and CO2 reductions using Hydrocerol™ Chemical Foaming Agents in collaboration with tier-one supplier Antolin.
https://www.avient.com/sites/default/files/2022-12/Mevopur Healthcare Bio-based Polymer Solutions Application Bulletin.pdf
Mevopur™ Healthcare Bio-based Polymer Solutions for Medical Devices and Pharmaceutical Packaging Manufacturers of medical devices and pharmaceutical packaging are increasingly faced with the challenge of integrating sustainability into the design of their products.
KEY CHARACTERISTICS • Available for polyethylene, polypropylene, ABS, polycarbonate and styrenics • Bio-content of resin carrier varies from 70% to 100% depending on polymer—calculated to ASTM D6866 standard • Manufactured at four ISO 13485 certified sites, providing global consistency and security of supply • Documented change control beyond CAS number, reducing risk of change • Drop-in solutions that can be processed like fossil-based grades on common injection molding and extrusion machines • Can be provided as ready-to-use pre-colored or additive formulation REGULATORY SUPPORT • Raw materials tested to: - ISO 10993-1 - USP and (incl. class VI) - European Pharmacopeia, monograph 3.1.3/ 3.1.5 (polyolefin packaging materials) - USP (polyethylene) - Elemental impurities as per ICH Q3D • Registered Drug Master File (Type III) and/or Device Master File • Food contact according to US FDA and APPLICATION BULLETIN Sustainability Spotlight Bio-polymers Healthcare use limitations apply—see below.
Please be aware that there are certain applications Avient’s Mevopur products have not been designed for, nor are they promoted or intended for use in: including, but not limited to long-term or permanent implants, birth control devices, or plastic surgery.