The invention belongs to the technical field of
solid waste comprehensive utilization, and particularly relates to a preparation method of a glass-
fiber-reinforced
epoxy resin composite material modified by circuit board recovered
powder and nanoparticles. The preparation method provided by the invention comprises the following steps of: modifying glass fibers with a
coupling agent to obtain surface-activated
glass fiber reinforcement; carrying out surface activating treatment on dry circuit board recovered
powder and nanoparticles, and then mixing with
epoxy resins to obtain an
epoxy resin base body filled and modified by the circuit board recovered
powder and nanoparticles; and finally compounding the
coupling-agent-modified
glass fiber reinforcement and the epoxy resin base body filled and modified by the circuit board recovered powder and nanoparticles to obtain the glass-
fiber-reinforced
epoxy resin composite material modified by circuit board recovered powder and nanoparticles. The preparation method utilizes the
coupling-agent-treated glass fibers to improve the
interfacial bonding properties between the glass fibers and the resin base body and to improve the
interfacial bond strength of the
composite material, utilizes the strength and
toughness of the glass fibers to strengthen and toughen the resin base body, and utilizes the surface-activated recovered powder and nanoparticles to fill and modify the resin base body, thus improving the overall performance of the
composite material and significantly improving the
interfacial bond strength of the
composite material and the mechanical properties of the
glass fiber composite material, and can be widely applied in the fields of
aerospace, automobile shipping, traffic transportation, mechatronics, etc.