FIELD: process engineering.
SUBSTANCE: invention relates to raw-rubber grinding, introducing it to polypropylene polymer composition to up its adhesion to lacquer coating and to increase impact characteristics for moulded articles. Rubber pellets are cut by air-driven knives and ground by the device composed of forced-cooled cylinder, screw and rotary knives arranged at screw outlet.
EFFECT: fine rubber flakes sized to 0,2-3 mm and having loose structure.
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Authors
Dates
2014-03-10—Published
2012-01-11—Filed