| 摘要 |
<P>PROBLEM TO BE SOLVED: To solve the following problem: pulp fiber composite PP remarkably deteriorates designability because air remaining on pulp fiber surfaces and among fibers separates under a high pressure applied during injection molding and remains as bubbles in a molded article, and in order to prevent the deterioration, the residual air is removed by impregnating a dilute solution of an elastomer or the like into pulp fibers by immersion in the solution and then squeezing the pulp fibers, however, this method brings reduction of impact strength. <P>SOLUTION: A method for producing a pulp fiber reinforced resin is characterized in that a surfactant is applied to cotton-like pulp fibers in a suspended state after defibration by stirring in a mixer; an aqueous dispersion of a low elastic elastomer dispersed in water with a surfactant of the same kind or the same stock as the above surfactant is sprayed; and using a mixture obtained by adhering fine particles of a thermoplastic resin put thereafter to the long pulp fiber surfaces, melt kneading and composite formation are carried out. <P>COPYRIGHT: (C)2012,JPO&INPIT |
