Medium density fiberboard is one of the most promising products at present. It is made of wood fiber or other plant fibers as raw materials. After crushing, fiber separation and drying, urea-formaldehyde resin or other suitable adhesives are applied. An artificial board made by hot pressing. It is an environmentally friendly wood product in modern decoration and has made great progress for our human health. Today we will introduce to you what MDF is?
1. What is MDF?
Because the surface of medium density fiberboard is flat and smooth, it can not only glue planed veneers and tissue paper and other decorative materials, but also facilitate painting and save paint. It can be produced from 3mm to 30mm and can replace Boards and squares of any thickness, with good machining performance, sawing, drilling, grooving, tenoning, sanding and engraving. The edge of the board can be processed in any shape, and the surface after processing is smooth. Its excellent performance is an effective way to comprehensively and rationally utilize wood. Therefore, medium-density fiberboard is one of the most promising products at present. It is now widely used in the furniture manufacturing industry.
2. Characteristics of MDF
1. Uniform internal structure, moderate density, good dimensional stability, small deformation, and moderate physical and mechanical properties.
2. The surface is flat and smooth, and the machining performance is good. Sliced ??thin wood, patterns and novel and beautiful decorative papers can be pasted on it. Therefore, it is deeply loved by people in home decoration and is often used in production. Furniture, partitions, etc.
3. The middle frame and middle strip can be used in modern decorative frameless paintings. The national registered trademark Visual Life frameless paintings are used in this way to make life more environmentally friendly.
3. Precautions for MDF
1. Check the appearance to see whether the thickness and density are uniform, whether there is damage to the corners, whether there are delamination, bulging, carbonization, etc. No fluffy parts.
2. If possible, you can saw a small piece of medium-density fiberboard and soak it in water with a water temperature of 20°C for 24 hours to observe its thickness changes and observe whether there are any small bulges on the board surface. The thickness changes greatly and there are small bulges on the board surface, indicating that the board surface has poor water resistance.
3. Choose medium-density fiberboard with low emission. Use your sense of smell when selecting. You should choose medium-density fiberboard with less irritating smell, because the greater the smell, the higher the formaldehyde release, which will cause pollution. The bigger it gets.
IV. Classification of MDF
Density board, also known as fiberboard, is an artificial board made of wood fiber or other plant fibers as raw materials and applied with urea-formaldehyde resin or other applicable adhesives. . According to their different quotas, they are divided into high-density boards, medium-density boards, and low-density boards.
Defense board is a good material for making furniture abroad because it is soft, impact-resistant and easy to reprocess. However, because the national standard for high-density board is several times lower than the international standard, The use quality of density boards in our country still needs to be improved.
Medium and high density boards (MDF-Medium·Density·Fiberboard), according to the national standard GB11718-89: use wood fiber or other plant fibers as raw materials, apply aldehyde urea resin or other applicable adhesives, Boards with a density in the range of 0.50 to 0.88 are called medium and high density fiberboards.
High-density board has poorer nail-holding power than particleboard. If the screws become loose after tightening, it will be difficult to fix them due to the low strength of the density board. Moreover, most furniture uses high-density boards, and inferior high-density board furniture contains very high formaldehyde content, which is also very harmful to the human body. Formaldehyde can be eliminated after the boards are aired.
The above is the knowledge and related content provided by the editor about what MDF is.