| 摘要 |
<p>Disclosed is a method for production of a long fiber-reinforced polyolefin resin molding material having excellent mechanical strength and durability, which can achieve the charge/feeding of a matrix resin into an immersion die by means of a single-screw extruder in a stable manner. The method comprises the steps of: plasticizing/melting a composition comprising a base resin and a master batch in a single-screw extruder; charging the resulting composition into an immersion die; passing a reinforcing fiber through the immersion die; and cutting a long fiber-reinforced polyolefin resin rod thus produced into pieces each having a predetermined length, wherein the base resin comprises a polyolefin resin, and the master batch is prepared by previously melting/dispersing an additive comprising a low-melting-point additive having a melting point of 125°C or lower (i.e., a master batch component other than a polyolefin resin) into a polyolefin resin.</p> |
