Soaking compression restructuring artificial board and method for producing same

Abstract

The invention provides a method for producing a high-performance structure artificial board which is produced through utilizing fast-growing small dimension wood or bamboo wood raw materials. The method comprises the steps that the fast-growing wood is sawn into boards to be subjected to dry fixed thickness dressing treatment or the bamboo wood is longitudinally split to be subjected to plasticizing flatten dry fixed thickness dressing treatment, and an adhesive is used to form a fast-growing large board through splicing; the board is soaked in phenolic resin or melamine-formaldehyde resin; the soaked large board is dried until the resin content is 50-80% to obtain a blank; or the soaked large board is dried until the resin is completely solidified and is then coated with the adhesive to obtain the blank; the blank is laminated and assembled to obtain a blank body; and the blank body is subjected to cold pressing or hot pressing to obtain the structure artificial board. The produced artificial board does not need mould proof, anticorrosion, insect prevention and flame retardant treatment, is stable in dimension, can be used as building wood beams, wooden pillars, stairs, cement moldboards, compartments and container bottom boards, decoration materials, furniture materials and the like, and is particularly suitable for outdoor occasions.

Description

technical field [0001] The present invention relates to a new impregnated compression recombined structure wood-based panel and its manufacturing method, in particular to a recombined structure wood-based panel with high strength, high dimensional stability and high weather resistance and its manufacturing method. , anti-corrosion, insect-proof and flame-retardant treatment. It belongs to the field of wood-based panel manufacturing. Background technique [0002] The wood-based panel industry has maintained a high-speed development trend due to the renewable nature of wood resources, the designability of structure and performance, and the physical and mechanical properties are mostly superior to natural wood. It is an indispensable part of national economic development. It is widely used in furniture manufacturing, packaging, indoor and outdoor decoration and other fields. However, with the rapid development of wood structure buildings and outdoor furniture, higher requireme...

AI Technical Summary

Problems solved by technology

This method maintains the mechanical properties of the wood itself to a certain extent, but the material selection of the material is relatively strict. Generally, large-diameter high-quality broad-leaved wood or coniferous wood with better materials is required. Even so, it still needs to be removed before production. Defects such as knots cannot be fully utilized for fast-growing timber, especially small-diameter timber with many knots such as poplar, fir, and pine

The glulam obtained by this type of patent has not been treated with mildew, anti-corrosion, insect-proof and flame-retardant treatment, and its application in wooden structures, especially in multi-story wooden structures and outdoor furniture, is limited

In addition, the application publication number CN 102642223 A discloses the method of impregnating fast-growing wood with modified urea-formaldehyde resin. Since the modified urea-formaldehyde resin is a medium water-resistant adhesive, it is difficult to ensure the dimensional stability of the impregnated wood under the humidity condition. The molecular weight of the resin is small, and the degree of polycondensation of the resin is low, so it is difficult to ensure that the formaldehyde emission of the impregnated board is at a safe level

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