Plug Assist Materials for Improved Forming of Transparent Polypropylene

The performance of a new class of copolymer syntactic foam (HYTAC-FLX and HYTAC-FLXT) was evaluated and compared to an engineered solid polymer (PEEK) and the industry’s leading thermoplastic syntactic foam (HYTAC-B1X) for use as a plug assist when forming transparent polypropylene (PP).  These new copolymer syntactic foams have been designed to minimize scratching and improve clarity when forming transparent materials and offer additional benefits in machining/polishing of plug materials.    The results, including the effect of plug geometry and surface finish quality, for gloss, scratch, haze, clarity, plug mark and material distribution are detailed in the study.

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