The invention discloses a
graphene wood-plastic micro-foaming material with uniform foam and a preparation method of the micro-foaming material. The method comprises the following steps: a, washing wood
powder by using an alkali, performing draining, performing ultrasonic wave-vacuum synergetic dispersion on the dried wood
powder,
silicon micropowder and
graphene under the protection of an
inert gas, performing washing by using water, performing
drying, and linking the
silicon micropowder, the wood
powder and the
graphene to form micro
fine powder to obtain composite powder under the action ofthe alkali at the surface of the wood powder treated by the alkali; b, mixing the composite powder, resin and a
zeolite molecular sieve to prepare a mixed material; c, performing
extrusion granulation on the mixed material to obtain mixed granules; and d, adding a
foaming agent into the mixed granules, and performing micro-foaming injection molding to obtain the wood-plastic
composite material with the uniform foam. The method disclosed by the invention greatly eliminates
moisture in the bamboo wood powder, reduces high-temperature damage to the wood powder structure, and has a safe and high-efficiency
drying manner; and the obtained bamboo wood powder has good and strong
interface bonding performance with the resin, micropores generated by foaming have regular shapes, small pore diameters, uniform distribution, foaming quality is good, so that the
composite material has good surface
hardness, good
toughness, high strength, and a wide application range.