Medium-density fiberboard

Abstract

The invention belongs to the technical field of fiberboards, and particularly relates to a medium-density fiberboard which comprises a main board, an extension plate and a pressing plate. The main board is arranged to be a cuboid, one side surface of the main board is arranged to be an arc surface, and a first groove is formed in one side surface of the main board. One surface of the first grooveis connected with the bottom of the main board, and the extension plate is connected into the first groove in a sliding mode. The surface, close to the groove bottom of the first groove, of the extension plate is obliquely arranged, and the extension plate can slide into the first groove. An L-shaped groove is formed in the other side surface of the main board. One end of the L-shaped groove is connected with the groove bottom of the first groove. The structural performance of the medium-density fiberboard is improved while the original material performance of the medium-density fiberboard isguaranteed so that the medium-density fiberboard does not sink when being placed on a humid soil pavement by a worker, and the stability of the medium-density fiberboard is improved; and meanwhile, the attractive effect of the medium-density fiberboard cannot be influenced.

Description

technical field [0001] The invention belongs to the technical field of fiberboards, and in particular relates to a medium density fiberboard. Background technique [0002] Fiberboard is a wood-based panel made by interweaving lignocellulosic fibers and using its inherent adhesive properties; medium density fiberboard is a wood or plant fiber that is mechanically separated and chemically treated, mixed with adhesives and waterproofing agents, etc., and then subjected to high temperature , a kind of man-made board made of high-pressure molding; the structure of medium-density fiberboard is more uniform than that of natural wood, and it also avoids problems such as decay and insects. At the same time, it has small expansion and contraction and is easy to process; In terms of strength, they are better than particle boards; at the same time, due to the flat surface of MDF, they are widely used in luggage frames, cabinets, chairs, and heels; The subsidence of the limit plate on t...

AI Technical Summary

Problems solved by technology

[0002] Fiberboard is a wood-based panel made by interweaving lignocellulosic fibers and using its inherent adhesive properties; medium density fiberboard is a wood or plant fiber that is mechanically separated and chemically treated, mixed with adhesives and waterproofing agents, etc., and then subjected to high temperature , a kind of man-made board made of high-pressure molding; the structure of medium-density fiberboard is more uniform than that of natural wood, and it also avoids problems such as decay and insects. At the same time, it has small expansion and contraction and is easy to process; In terms of strength, they are better than particle boards; at the same time, due to the flat surface of MDF, they are widely used in luggage frames, cabinets, chairs, and heels; The sinking of the limit plate on the dirt road will affect the use of medium density fiberboard

[0003] There are also some technical solutions about medium density fiberboards in the prior art. A Chinese patent with the application number CN201610126227.X discloses a kind of medium density fiberboard. The preparation method of the medium density fiberboard includes steps: 1. Dry and grind the magnesium-aluminum layered double hydroxide to 20-50 μm, then hydrolyze the coupling agent with a mass percentage concentration of 20-30% at room temperature for 25-35 minutes, and then add the ground magnesium-aluminum layered double hydroxide In the 80-90°C aqueous solution of metal hydroxide, react for 0.5-1.5h, then filter, wash, dry, and grind; 2. Add modified MUF adhesive and modified Mg / Al-LDHs to wood fiber In the process of using the modified MUF adhesive, 5-10 parts of formaldehyde scavenger and 1-3 parts of curing agent are added; after paving, pre-pressing, hot pressing, and cooling, the medium density fiberboard can be obtained; the technical scheme The medium density fiberboard provided is environmentally friendly, non-toxic, has no obvious moisture absorption, and has an oxygen index as high as 34%. When the MDF board is used on the outdoor wet dirt road, it will cause the MDF board to sag, which will make the objects and people on the MDF board unbalanced, which will cause the objects and people on the MDF board to fall down, and cause Limitations of this technical solution

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