Flame-retardant medium-high density fiberboard

Abstract

The invention relates to the technical field of plates. The invention discloses a flame-retardant medium-high density fiberboard. The density fiberboard comprises a density fiberboard body, protectiveframes are arranged on the two sides of the density fiberboard body, a mounting groove is formed in the middle of the density fiberboard body, a plurality of supporting columns are fixedly connectedto the mounting groove at equal intervals, a water absorption plate is arranged between the two supporting columns, sliding strips are slidably connected into grooves in the top ends of the inner sides of the protective frames, the bottom ends of the two sliding strips are fixedly connected with a protective layer, and the density fiberboard body is composed of a wear-resistant paper layer, a waterproof layer, a first flame retardant layer, a first reinforcing layer, a wood fiber layer, a second reinforcing layer and a second flame retardant layer. According to the flame-retardant medium-highdensity fiberboard, the fireproof performance of the fiberboard is improved, obvious flame-retardant treatment can be performed on open fire, so that the side edges of the fiberboard are protected, itis guaranteed that the waterproof performance of the fiberboard is good, the situation that the fiberboard is rotten due to water absorption is avoided, and the service life of the fiberboard is prolonged.

Description

technical field [0001] The invention relates to the technical field of plates, in particular to a flame-retardant medium and high-density fiberboard. Background technique [0002] Fiberboard, also known as density board, is a wood-based panel made of wood fiber or other vegetable fiber and applied with urea-formaldehyde resin or other suitable adhesives. Adhesives and / or additives may be applied during the manufacturing process. Fiberboard has the advantages of uniform material, small vertical and horizontal strength difference, not easy to crack, etc., and has a wide range of uses. It takes about 2.5-3 cubic meters of wood to make 1 cubic meter of fiberboard, which can replace 3 cubic meters of sawn timber or 5 cubic meters of logs. The development of fiberboard production is an effective way to comprehensively utilize wood resources. The disadvantage of fiberboard is that there is a texture on the back, resulting in unequal surface areas on both sides of the board. Afte...

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Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a flame-retardant medium and high-density fiberboard. At present, the flame-retardant density fiberboard is too single, and the fireproof performance of the fiberboard is relatively general, and it cannot show obvious flame retardancy against open flames. The side of the fiberboard is protected during use, and the side is prone to burrs during long-term use, and the fiberboard is prone to fragmentation when it is hit, which not only affects the appearance of the fiberboard, but also has a certain impact on the use of the fiberboard, and the fiberboard The waterproof performance of the fiberboard is poor, and the fiberboard will absorb the moisture in the air during long-term use, which will cause the fiberboard to rot and affect the service life of the fiberboard

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