The invention discloses an anti-
mildew halogen-free
flame-retardant
smoke-suppression wood-plastic
composite material, which comprises the following components in parts by
mass: 25-70 parts of plastic resin, 10-50 parts of
plant fiber powder, 5-10 parts of
camphor wood
powder, 0.5-20 parts of a compatibilizer, 0-15 parts of a
toughening agent, 10-35 parts of a
flame retardant and a synergist, 2-5 parts of a thermal stabilizer, 0-1 part of an
antioxidant and 1-4 parts of a lubricating agent. According to a method for preparing the wood-plastic
composite material with a two-step fusion method disclosed by the invention, the interfacial compatibility can be improved effectively, and the
flame retardance of the wood-plastic
composite material is enhanced on the premise of keeping high
mechanical property; and moreover, the using amount of
ammonium polyphosphate serving as a major flame retardant is reduced. Compared with the conventional wood-plastic composite material, the wood-plastic composite material disclosed by the invention has a simple production flow, has the technical effects of flame retardance,
smoke suppression and
mildew resistance, and is widely applied to occasions such as indoor and outdoor architectural decoration, and the like.