Composite flakeboard and preparation method thereof

The invention provides a composite flakeboard and a preparation method thereof. In the method, the flakeboard is formed by mixing and drying waste tetra package scraps, wood flour and an adhesive and then performing thermal pressing processing. The composite flakeboard prepared by the method is high in mechanical property, static bending intensity, elasticity modulus and size stability, and low in thickness swelling rate of water absorption, the static bending intensity and elasticity modulus of the flakeboard even achieve the structure demands of a particle board used under the drying state and accord with the national standards (GB/T 4897.2-2003 the second part of the particle board, the common board demands used under the drying state and the GB/T17657-1999 artificial board and veneer artificial board physical and chemical property test method), the flakeboard prepared by the method is low in cost, the utilization ratio and the additive values of the waste tetra package and timber are improved and environm