When we decorate the house, how to choose building materials, let's take a look at this MDF . What is the characteristic of this MDF? Is it safe to buy the building materials? What are the specifications and advantages of this MDF? Also, what are the purchasing techniques of our MDF? Xiaobian thinks that after reading the content of the article, this introduction of MDF can help many friends.
I. Introduction of MDF specifications
1. The surface is often affixed with melamine paper or veneer. Advantages: excellent physical properties, uniform material, no dehydration problem, no moisture deformation; the surface of the melamine finish has moisture, corrosion, wear resistance, high temperature resistance, etc., no post-treatment, low formaldehyde content.
2. The density of medium density board is between the density of high density board and low density board, generally 440~880kg/m3.
3, the common specifications are 2440mm * 1220mm, the thickness is 3mm, 5mm, 9mm, 12mm, 15mm, 18mm, 25mm and so on. Other medium-density boards of special specifications and thickness can also be customized.
Second, the density board features
1. Uniform material, compact structure, smooth and smooth surface, not easy to deform, stable performance, sharp edge, delicate, not easy to collapse, stratification; non-toxic, odorless, non-radiative, good breathability.
2, good thermal insulation performance, no aging, strong adhesion.
3, static bending strength, tensile strength, water content, nail holding power, water swelling ratio and formaldehyde content are better than GB/T117181-999, GBl8580-2001 national standard (inner strength reaches O.74Mpa water absorption thickness The expansion ratio is less than 3% and the water content is about 5%.
4. The medium density fiberboard is finer than the ordinary particleboard, the finishing is flat, the drum is not smashed, and the layer is not layered, which can greatly reduce the amount of materials used. The medium density fiberboard is mainly used to detect the formaldehyde emission and structural strength. The medium density fiberboard is classified into E1 grade, E2 grade and E0 grade according to the formaldehyde emission amount, and the formaldehyde emission amount is generally not more than 30mg/100g. E1 and E0 are used in piano production.
5, common materials are pine, poplar, willow wood and so on. In China, medium density fiberboard is already a good material for furniture manufacturing and home decoration.
Third, the MDF purchase skills
1. According to the standard, MDF can be divided into E0 grade, E1 grade, E2 grade and CARB P2 grade according to the content of free formaldehyde. E2 grade formaldehyde emission is ≤5mg/L; E1 grade formaldehyde emission is ≤1.5mg/L, which can be directly used for interior decoration.
2. The amount of formaldehyde released by E0 is ≤0.5mg/L. The release amount of formaldehyde in CARB P2 is ≤0.3mg/L. Among them, E0, E1, E2 refers to the domestic standard, and CARB P2 refers to the European and American standards. When purchasing MDF, consumers should try to buy goods with low formaldehyde emission, which are safer.
3. The blue aperture is between 0.27 and 0.98 nm and is arranged in a crystal. At the same time, it has weak electrical properties. The molecular diameters of formaldehyde, ammonia, benzene, toluene and xylene are all between 0.4 and 0.62 nanometers, and they are all polar molecules. They have the characteristics of preferentially adsorbing harmful gases such as formaldehyde, benzene and TVOC. The effect of indoor air.
4. Surface cleanliness: The surface of the MDF with good surface cleanliness should have no obvious particles. The particles are caused by the introduction of impurities during the pressing process, which not only affects the appearance but also makes the paint film easy to peel off.
5, the surface smoothness: the hand should touch the surface should have a smooth feeling, if the feeling is more ambiguous, the processing is not in place.
6. Surface flatness: The surface of the MDF should be bright and flat. If the surface is not flat from the side, it indicates that there is a problem with the material or coating process.
When we read the above article, what are the MDF, what are the specifications for MDF production, and what are the advantages of MDF? What are the purchasing techniques of MDF? . Then friends can continue to pay attention to the decoration home network to learn more about decoration.
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