https://www.avient.com/resource-center/knowledge-base/article/designing-molds-styrenic-block-copolymers-sbc?rtype%5B0%5D=1164
Many SBC based TPEs are anisotropic; that is, they have different properties in the flow direction than in the crossflow direction (90 degrees to the flow direction).
https://www.avient.com/resource-center/knowledge-base/article/designing-molds-styrenic-block-copolymers-sbc
Many SBC based TPEs are anisotropic; that is, they have different properties in the flow direction than in the crossflow direction (90 degrees to the flow direction).
https://www.avient.com/sites/default/files/2020-09/gravi-tech-processing-guide-chinese.pdf
系统每个90°弯管直径降低(从注道到浇口)大约1.5mm(1/16"),以减少 压降。
在每个90°交叉处设置排气口,通向大气。
在流道系统的每个90°弯曲处设置冷料井。
https://www.avient.com/company/sustainability/sustainability-report/preserving-planet/energy-ghg-emissions
Approximately 90% of our Scope 3 emissions come from purchased goods and services and downstream processing of sold products (65% and 24% respectively).
https://www.avient.com/news/plastics-and-rubber-thailand-2024-include-avients-showcase-specialty-and-sustainable-materials
reSound™ BIO TPEs: contains 40 to 90 percent bio-based content within a wide hardness range (which can help reduce carbon footprint) and has performance characteristics that are comparable to standard TPEs
https://www.avient.com/resource-center/knowledge-base/article/developing-your-esg-framework?sust%5B0%5D=1133
More than 90% of large, publicly-traded companies in the United States report ESG metrics (McKinsey & Company).
https://www.avient.com/resource-center/knowledge-base/article/continuous-fiber-reinforced-thermoplastic-composites
The 4-ply sample here has similar tensile performance as the 4-ply sample in Figure 1, which is expected because the two samples contain an equal balance of 0- and 90-degree fibers.
https://www.avient.com/resource-center/knowledge-base/article/developing-your-esg-framework
More than 90% of large, publicly-traded companies in the United States report ESG metrics (McKinsey & Company).
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/2021-06/edgetek-et8900-cr-technical-bulletin.pdf
ACTIVE INGREDIENTS RESISTANCE RATING Clorox® Disinfecting Wipes 5813-79 Quaternary ammonium +++++ +++++ +++++ ++ +++ ++++ Formula 409® Heavy Duty Degreaser N/A Lauramine oxide, ethanolamine +++++ +++++ +++++ + ++ +++ Lysol® All-Purpose Cleaner 777-66 Quaternary ammonium +++++ +++++ +++++ + + ++ $$$ $$$ $$$$ $ $$$ $ MATERIAL COMPARISON WITH COMMON CONSUMER DISINFECTANTS FR P C/ AB S FR P C/ PE T FR P C/ PB T Ed ge te k™ E T8 90 0 CR Ed ge te k™ E T8 90 0 H I C R Ed ge te k™ E T8 92 0 FR C RCRITERIA FOR RESISTANCE RATING + strength and elongation at yield retention between 90-110% + strength and elongation at yield retention between 75-125% + no statistically significant reduction in elongation at break (p < 0.05) + visual observation score of 4 or better (minor/no crazing, no cracks) + samples survived disinfectant exposure in strain jig Lysol® is a trademark of Reckitt Benckiser LLC Formula 409® is a trademark of The Clorox Company Clorox® is a trademark of The Clorox Company An independent, A2LA-accredited lab tested the following polymers with various disinfectants to help customers choose the material suitable for their specific application requirements.