Method of forming a bamboo wood composite board
View Patent ↗A method of forming a board suitable for use as container flooring uses bamboo and fast-growth low-density wood. The method includes the step of overlaying thin layers of high-density bamboo composites on surfaces of a core layer which can be the composite of wood veneer and wood strand-based composite, or wood veneer and bamboo stripe sheet composite. The benefits of bamboo and wood materials are combined to produce a bamboo-wood composite board having sufficient mechanical and physical strength and durability for use as container flooring.
1. A method of forming a bamboo-wood composite board, suitable for use as container flooring, comprising the steps of:
(a) forming a surface layer of bamboo stripe sheets and resin, and hot-pressing the surface layer at a pressure of about 4.0 to about 4.5 MPa such that the surface layer has a specific density of at least about 0.9;
(b) forming a core layer comprising at least one wood veneer layer and a support layer, wherein the support layer comprises a wood strand layer, and wherein the wood veneer layer continuously extends along the entire width of the board; and
(c) pressing the surface layer and the core layer together to form the composite board.
2. The method of claim 1 wherein the surface layer is pressed at a temperature of about 135° to about 145° C.
3. The method of claim 2 wherein resin is applied to the hot-pressed surface layer, prior to being pressed together with the core layer.
4. The method of claim 3 wherein the core layer is formed of a wood veneer layer on each side of a wood strand layer.
5. The method of claim 4 wherein the composite board comprises two surface layers.
6. The method of claim 5 wherein the composite board is pressed together at a temperature of about 135° C. to about 145° C., at a pressure of about 1.5 MPa to about 3.0 MPa.