Synthetic mineral fiber compound plays its part in vehicle lightweighting

02/22/2012

French automotive plastics component producer Mecaplast (Monaco) reports that it can make significant weight reductions in injection molded TPO parts by partially replacing talc filler with Hyperform HPR-803i, a synthetic mineral-based reinforcing fiber from Milliken (Spartanburg, SC).

Demonstrating this, Mecaplast has adopted a TPO compound containing a mix of talc and Hyperform HPR-803i (total additive content around 10 percent by weight) to mold prototype B-pillar covers that it normally supplies in a conventional 20 percent talc-filled TPO (elastomer-modified polypropylene) compound. The prototype parts weighed 524 g, seven percent less than the commercial parts. The compound has a density of 0.98 g/cm3, which compares with 1.04 g/cm3 for a 20 percent talc-filled TPO with similar mechanical properties.
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