“Teknor Apex has drawn on semi-aromatic polyamide chemistry to enhance the ability of these compounds to retain tensile properties and stiffness upon exposure to moisture,” said Mike Anderson, commercial director for the ETP Division. “The A3H7G3 product is currently in use for an automotive engine cover, having met an OEM specification for property retention after heat aging at 170 °C.”
For the 20% glass-reinforced C3H2G4 grade, a comparison between dry-as-molded and conditioned properties shows notched Izod impact strength increasing from 7 to 10 KJ/m2; tensile strength decreasing from 125 to 85 MPa; elongation at break increasing from 3.0 to 3.4%; and tensile modulus decreasing from 8,300 to 5,500 MPa.
“The new Creamid compounds enable engineers to meet increasingly stringent requirements for halogen-free FR formulations while finding new ways to consolidate parts,” said Pratik Shah, director of strategic initiatives. “Included are grades with halide-free stabilization that are designed for sensitive electronic applications, where ion migration can lead to failures of the electronic components.
“We continue to expand our portfolio of FR products in polyamides and other engineering plastics, such as PBT, PPA, and even PP, with several new grades in the final stages of commercialization. Our vision is to have a polymer-neutral approach and provide an optimized solution to the individual customer problems.”