This content is not included in your SAE MOBILUS subscription, or you are not logged in.
Development of recycling technology of surface material for interior trim
Published May 19, 1999 by Society of Automotive Engineers of Japan in Japan
Event: JSAE Spring Conference
Two-layered surface material for interior trim which is composed from thermoplastic olefin elastomer (TPO) skin and cross-linked polypropylene (PP) foam is increasingly replacing conventional PVC skin/PVC foam. The recycled material obtained by melt blending TPO skin and PP foam cannot be used for TPO skin because of its appearance. The new recycling technology by using reaction biaxial extruder with reaction agent can decompose the network structure of PP foam. As a result, PP foam is dispersed into TPO uniformly, and recycled material shows similar property and appearance to virgin TPO, enabling application as a surface material.