This invention refers to a kind of component of nick resistant talcum-
powder-filling
polypropylene, is characterized with strengthened
toughness through latex and is composed of the following materials in amounts of weight: between 50 and 80 of
polypropylene, between 5 and 35 of filler, between 5 and 25 of latex, between 0.5 and 5 of high molecular
silicone elastomer, between 0.05 and 0.5 of nucleater, between 0.1 and 1.0 of stabilizer, between 0.2 and 1.5 of talcum
powder surface passiation agent, between 0.05 and 1.0 of
processing agent and between 0.3 and 2.0 of toner. The manufacturing method is to weigh the materials in amounts of weight, to mix
polypropylene, filler, latex, high molecular
silicone elastomer, nucleater, stabilizer, talcum
powder surface passiation agent,
processing agent and toner in homo mixer, then put them into double-screwed extruder for melting and extruding. After cooling,
drying and pelleting, we can get the turnoff. The invention improves the nick resistance of polypropylene,
ultraviolet radiation endurance and thermal endurance and the
toughness and rigidity of the material reach good balance. It can meet the requirements of the material of automobile limbs. It can demold at a relatively high temperature, improves the moulding efficiency greatly and reduces the
processing cost.