Wood fiber composite facing ecological board and manufacturing method thereof

Abstract

The invention discloses a wood fiber composite facing ecological board and a manufacturing method thereof. Wood fibers are selected, and the thickness of the wood fibers ranges from 0.2 mm to 0.6 mm;the moisture content of the wood fibers is 0-9%; an adhesive is adopted for adhesion, and is applied and stirred in the fibers; the adhesive application amount is 7-35% of the weight of the wood fibers; 0.3-0.6% of waterproof agent and 0.1-0.4% of mildew preventive are added; after the application, the moisture content of the fibers is dried to 3 to 15 percent; upper and lower surfaces of a laminated wood board core or a plywood core in the thickness of 5-21 mm, length of 2450 mm to 2750 mm and width of 1230 mm to 1310 mm are coated with the adhesive, and the coating weight of a single surfaceis 100-120g / m2; the uniformly stirred wood fibers is uniformly laid on the upper and lower surfaces of the facing board core for hot pressing at the hot pressing temperature of 100-150 DEG C; the actual unit pressure and time are divided into three sections for hot pressing, then board collecting, and then stacking and natural curing are conducted for more than 7 days, edge sawing and sanding thickness determination are conducted, and the wood fiber composite facing ecological board is manufactured by conducting high-temperature hot pressing on the two faces and impregnating adhesive film paper. The wood fiber composite facing ecological board is high in flatness, high in surface bonding strength, low in water content, stable in size, resistant to cracking and good in cold and hot cycle resistance.

Description

technical field [0001] The invention relates to the technical field of board manufacturing, in particular to a wood fiber composite facing ecological board and a manufacturing method thereof. Background technique [0002] The veneer is a kind of veneer made by cutting natural wood or technical wood into thin slices of a certain thickness, sticking to the surface of the plywood, and hot pressing. It is used as a surface material for interior decoration or furniture manufacturing. At present, in the domestic and foreign markets, the wood veneer materials mainly include: [0003] 1) Solid wood veneer with a thickness of 0.10~0.75mm, such as poplar, mahogany, acacia, etc.; [0004] 2) Integrated materials with a thickness of 0.2~0.6mm, such as technical veneer; [0005] 3) The thickness is 1~3mm high-density fiberboard. [0006] The pressing and pasting process of the above-mentioned wood veneer materials: on the ordinary plywood or blockboard, the lower surface is glued, col...

AI Technical Summary

Problems solved by technology

[0007] However, this veneer pressing process, such as 1) and 2) the ecological board base material or finished veneer laminated by two veneer materials, has poor surface flatness, low surface bonding strength, and high moisture content. Defects such as dimensional stability, crack resistance, and poor resistance to cold and heat cycles

And 3) The ecological board base material or finished finished product pressed by the facing material has problems such as formaldehyde pollution, low surface bonding strength, large water absorption thickness expansion rate, large thickness, and high production cost.

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