FIELD: process engineering.
SUBSTANCE: invention relates to production of strands of composite material by combining continuous glass fibers with continuous fibers of organic high-shrinkage material used as reinforcing material. Thermoplastic fibers, stretched and heated to softening point, are thrown on revolving drum 17 at the rate exceeding operating rpm of said drum. Web 10 of said thermoplastic fibers are mixed on drum surface with glass fiber bundle or web 2 to make composite material strand. Said drum 17 has multiple holes and element 19 dividing drum inside into, at least, two compartments, one with rarefaction to keep thermoplastic fibers in initial crimp state and another one with increased pressure to separated web from drum surface. Produced strand features uniform distribution of fibers and stable properties.
EFFECT: composite material with liner glass fibers and crimped thermoplastic fibers.
8 cl, 2 dwg
Authors
Dates
2012-06-27—Published
2007-03-23—Filed