https://www.avient.com/knowledge-base/article/what-s-difference-fillers-reinforcements?ind[]=6598
Proper positioning of the gate, or mold opening, and proper mold design can minimize flaws.
In the mold, use general purpose nozzles (not tapered nozzles) and large, free-flow gates.
Runners should be designed with a full round gate and no sharp corners.1
https://www.avient.com/knowledge-base/article/what-s-difference-fillers-reinforcements?rtype[]=1164
Proper positioning of the gate, or mold opening, and proper mold design can minimize flaws.
In the mold, use general purpose nozzles (not tapered nozzles) and large, free-flow gates.
Runners should be designed with a full round gate and no sharp corners.1
https://www.avient.com/sites/default/files/2022-11/Polystrand R Recycled Polyester Composite Tape and Laminates Product Bulletin.pdf
TECHNICAL PROPERTIES
Continuous fiber-reinforced composites comparison: recycled PETG, virgin PETG and APET resin systems with
58% glass fiber reinforcement
CARBON FOOTPRINT COMPARISON TO ALTERNATIVES
Greenhouse gas (GHG) emissions from cradle-to-gate production
Polystrand R 5840B made
with rPET has a lower carbon
footprint than traditional
polyester-based products;
44% lower than PETG and
31% lower than APET.
0.0
1.0
2.0
3.0
RPET PETG APET
kg
C
O
2e
/k
g
pr
od
uc
t
https://www.avient.com/sites/default/files/2021-04/bergamid-electronic-connectors-case-study.pdf
Avient’s technical representatives worked with the tool
maker to provide insight on venting, gate placement and other
tool design concerns to minimize the potential for any tool-
related problems.
https://www.avient.com/news/avient-brings-sustainable-innovation-npe-2024
Nymax™ REC Recycled Nylon Formulations: two new super tough PA6 and PA66 grades added to Avient’s recycled content portfolio, each containing post-industrial recycled content, resulting in up to 81% lower cradle-to-gate product carbon footprint than traditional alternatives made without recycled content, and will be presented during Avient’s technical seminar at NPE, “Exploring Sustainable Alternatives to Traditional Polyamides,” by Jeremy Gray, Application Development and Technical Service Engineer, Specialty Engineered Materials at Avient, on May 9 at 11 a.m.
https://www.avient.com/news/where-sustainability-matters-avient-highlight-its-latest-solutions-support-circular-economy-chinaplas-2023
Visitors can find Avient at the TechTalk Show Area, Hall 16, Stand R32, and the Design x Innovation Gallery, Gate 2 Lobby 1/F, Hall 17.
https://www.avient.com/sites/default/files/resources/Overmolding_of_Thermoplastic_Elastomers_Engineered_solutions_for_consumer_product_differentiation.pdf
If the production quantities are large and/or the local labor cost is high, two
material molding machines are advisable for plastic substrates; hot runner systems using valve gates are
advisable for highest production volumes and the best part aesthetics.
Both have their own gate and runner system and need
to be tailored to the specific material properties used.
Relocating the gate to influence
the TPE flow pattern may also be of assistance.
https://www.avient.com/knowledge-base/article/advanced-composites-explained
This creates different properties than if the fiber was split up into smaller pieces and spread throughout the resin in different directions.
https://www.avient.com/sites/default/files/resources/TPE_Overmolding_Solutions_for_Engineering_Thermoplastics.pdf
Both have their own gate and runner system
and need to be tailored to the specific material properties used.
Relocating the gate to influence the TPE flow pattern may
also be of assistance.
https://www.avient.com/sites/default/files/2023-05/LFT Application Development Center Bulletin.pdf
Let us walk you through:
Optimizing the LFT Molding Processes
• Ensuring proper drying and preparation of the
material (review of drying equipment)
• Processing guidance for the specific grade
(temperature and pressure suggestions)
• Primary process development (including runner
& gate geometry)
• Secondary operation process development
• Tooling debugging/optimization, especially if the
injection mold is new
Troubleshooting
• Failure analysis/issue resolution (including
pyrolysis/burn-off reviews to study internal fiber
structure and length)
• Process/mold support to perfect finished goods
• Equipment review
Training
• Polymers fundamentals training
• Design guidance for LFT
IN-HOUSE PROTOTYPING SUPPORT
Our 55,000 square foot Application Development
Center is most often leveraged for new program
prototyping and R&D trials.