Asahi Kasei Plastics (Fowlerville, MI) has developed a new long-glass-fiber-reinforced polypropylene (PP) featuring improved impact performance and a reported 20% cost savings compared to traditional long-glass-fiber-reinforced polypropylene.
Thermylene I is said to provide a balance of stiffness and toughness over a broad range of temperatures positioning it to replace metal, long glass and many other engineering resin applications. "Automakers will find Thermylene I especially appealing as it offers excellent mechanical and cost performance compared to traditional long-glass-fiber-reinforced polypropylene," says Ramesh Iyer, VP of commercial operations at Asahi Kasei Plastics. The supplier declines to go into details regarding how exactly the 20% cost reduction is derived, but does note that "traditional compounds are manufactured via the pultrusion process."
"Applications that currently use long glass polypropylene will benefit from a cost savings and improved impact resistance, knit line strength, and better flow," says Iyer. "Thermylene I also provides high strength and stiffness at elevated temperatures, isotropic mechanical and dimensional properties and improved fatigue and creep resistance."
Key automotive applications include front-end modules, instrument panel retainers, battery trays, luggage racks and accelerator brake clutch modules. It is also ideal for a wide variety of other structural, functional and appearance parts as the glass content can be tailored to the specification for best performance.
Thermylene I is available with fiber loadings of 10-60%. Pellet length is 10-12 mm.