A method for producing an intermediate base material and a molded product made of a composite material containing a thermoplastic resin and reinforcing fibers, and the intermediate base material and the molded product.

摘要

PROBLEM TO BE SOLVED: To effectively improve mechanical strength such as tensile strength and bending strength of a molded product made of a fiber-reinforced resin composite material using a thermoplastic resin as a base material. In a method for producing an intermediate base material containing a thermoplastic resin as a base material and a reinforcing fiber, a dispersion liquid in which the thermoplastic resin and nanocellulose (NC) are dispersed in a dispersion medium is used as a reinforcing fiber or a reinforcing fiber. It is applied to a composite material containing a thermoplastic resin and dried. As a result, NC can be efficiently introduced into the interface between the reinforcing fiber and the base material, and mechanical strength such as tensile strength and bending strength of the molded product produced from the intermediate base material can be effectively improved. it can. NC may be cellulose nanofiber (CNF). NC may be modified with a functional group. [Selection diagram] FIG. 18