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Graft wood surface treatment methods that will pass alkali pretreatment of wood with a prop too bromine treated at 5070C conditions 0.53 hours. Propenyl of the wood surface, wood surface by this method of grafting The reaction by infrared spectroscopy shows that the wood surface hydroxyl functional groups are acrylic acid functional groups to bond to replace this _ reaction not only in the timber cellulose, but also carried on lignin, which is in wood surface to generate a single, homogeneous non-polar surface layer provides conditions. After the timber by prop Buddha glycosylation grafting treatment, the surface that is provided between adhesion and heat flow, surface and the surface can be thermoformed directly, but also with the styrene monomer in the role of initiator compound copolymer molding . Chemical modification of plastic substrates is performed under conditions of free radicals in the presence of cis-butadiene with anhydride (MA) addition reaction of polyethylene, MA introducing polar groups on non-polar polyethylene ethylene molecules, so that the modified polyethylene molecules having a certain polarity. When the wood composite, with this modified polyethylene can improve the mechanical strength of WPC M. However, this modification process on the polyethylene molecular grafting yield lower polar groups, and in the process of modification prone MA from polyethylene or polyethylene, thus affecting the modification effect.