Wood fiber composite new material veneer plywood and manufacturing method thereof

Abstract

The invention discloses a wood fiber composite new material veneer plywood and a manufacturing method thereof. Solid wood veneers or technical veneers in the thickness ranging from 0.10 mm to 3.2 mm and wood fibers in the thickness ranges from 0.2 mm to 0.6 mm are selected; the moisture content of the wood fibers is 0-9%; an adhesive is adopted for adhesion and is applied to the fibers and stirredwith the fibers; the sizing amount is 7-35% of the weight of the wood fibers; 0.1 to 0.9 percent of a waterproof agent and 0.05-0.8% of a mildew inhibitor are added, after application, the fiber moisture content is dried to 3-15%; the uniformly stirred wood fibers are laid on the surface of the single plate, a pre-pressed plate blank is hot-pressed at the temperature of 110-210 DEG C, the actualunit pressure and time are divided into four sections for hot pressing, the single-sided plate and the common plywood are adhered by the adhesive, and after the composite adhered plate blank is cooled, the wood fiber composite new material veneer plywood is prepared by high-temperature hot pressing. The wood fiber composite new material veneer plywood is high in flatness, high in surface bonding strength, low in water content, stable in size, resistant to cracking and high in cold and hot cycle resistance.

Description

technical field [0001] The invention relates to the technical field of plate manufacturing, in particular to a wood fiber composite new material veneer plywood 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,...

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.

Images