Melamine board is also called double-veneer board, paint-free board, ecological board, and some people call it one-time forming board. Its base material is also particleboard and medium fiberboard, which is formed by bonding the base material and the surface. The surface veneer mainly includes domestic and imported two types. Because it is treated with fireproof, anti-abrasion, and waterproof soaking, the use effect is Similar to laminate flooring.
Melamine board, referred to as melamine board, prefers to be called ecological board in the industry, the full name is melamine impregnated film paper veneer wood-based board. It is to soak the paper with different colors or textures in melamine resin adhesive, then dry to a certain degree of curing, and lay it on particleboard, moisture-proof board, MDF, plywood, blockboard, multi-layer board or another Hardboard surface, hot-pressed decorative board. In the production process, it is generally composed of several layers of paper, and the number depends on the purpose. Melamine board is not a new product, and a fancy name does not mean that the product is fresh.
The decorative paper is soaked in the melamine solution and then pressed on by hot pressing. Therefore, the moisture-proof board for furniture is generally called melamine moisture-proof board. Melamine formaldehyde resin is a solution with very low formaldehyde content, which is environmentally friendly. This way, it will not only cause secondary pollution but will reduce the release of the substrate inside. This method of processing has been recognized by everyone, and most of them are doing it. However, the surface treatment is also divided into good and bad, because the price of melamine-formaldehyde resin solution is almost 10 times that of other glues. Many people mix urea-formaldehyde glue in the solution, which is not environmentally friendly, so the board is also divided into full trimer and Semi-terpolymer board, this non-professional is not easy to recognize, mainly because of the surface.
Purpose/Classification
use
Commonly used in interior architecture and the decoration of various furniture and cabinets. Some panels, walls, cabinets, cabinet boards, etc.
Classification
According to the internal fiber shape, it can be divided into two types: melamine particleboard and melamine density board; The wood is made of sawdust, which is formed by redirecting arrangement, hot pressing, and glue drying. The difference between the two is that the particleboard has high strength and strong suction ability, while the density board is relatively weak.
performance
Melamine decorative board performance:
1. Various patterns can be imitated arbitrarily, with bright color, used as veneer for various wood-based panels and wood, with high hardness, wear-resistance, and good heat resistance.
2. The chemical resistance is general, and it can resist the abrasion of common acids, alkalis, oils, alcohols, and other solvents.
3, The surface is smooth and clean, easy to maintain, and clean.
Melamine board has excellent properties that natural wood cannot have, so it is often used in interior architecture and the decoration of various furniture and cabinets.
Melamine board is a wall decoration material. Some people use melamine board to counterfeit laminate flooring for floor decoration, which is inappropriate.
Common specifications: 2440mm × 1220mm, thickness 1.5-1.8Cm.
composition
"Melamine" is one of the resin adhesives used in the manufacture of such boards. Paper with different colors or textures is soaked in the resin, dried to a certain degree of curing, and then paved on the surface of particleboard, medium-density fiberboard, or hard fiberboard. , The decorative board is formed by hot pressing, the standard name is melamine impregnated film paper veneer wood-based board, and its melamine board is actually a part of its veneer composition.
Generally, it is composed of surface paper, decorative paper, cover paper, and bottom paper.
① The surface paper is placed on the top layer of the decorative board to protect the decorative paper, making the surface of the board highly transparent after heating and pressing, and the surface of the board is hard and wear-resistant. This kind of paper requires good water absorption, is white and clean, and transparent after dipping.
② Decorative paper, that is, wood grain paper, is an important part of the decorative board. It has a background color or no background color. It is printed into decorative paper with various patterns and placed under the surface paper. It mainly plays a decorative role. This layer requires The paper has good hiding power, impregnation, and printing properties.
③ Covering paper, also known as titanium dioxide paper, is generally placed under the decorative paper when manufacturing light-colored decorative boards to prevent the underlying phenolic resin from penetrating to the surface. Its main function is to cover the color spots on the surface of the substrate. Therefore, good coverage is required. The above three kinds of paper were impregnated with melamine resin.
④ The bottom layer is the base material of the decorative board, which plays a role in the mechanical properties of the board. It is dipped in phenolic resin glue and dried. During production, several layers can be determined according to the application or the thickness of the decorative board.
When choosing this kind of panel furniture, in addition to the color and texture satisfaction, the appearance quality can also be distinguished from several aspects. Whether there are stains, scratches, indentations, pores, whether the color and luster are uniforms, whether there is bubbling, whether there is local paper tearing or defects.
advantage disadvantage
shortcoming
The advantages of this kind of plate are smooth surface, not easy to deform because of the same expansion coefficient on both sides of the plate, bright color, relatively wear-resistant and corrosion-resistant surface, and economical price.
shortcoming
The disadvantage of this kind of plate is that the edge is easy to collapse, and the edge can not be directly sealed.
difference
Considering the cost, most of the family-oriented melamine panel furniture on the market are based on MDF and particleboard, while those with higher grades use melamine panels based on blockboard (solid wood core). In contrast, blockboard (solid wood core) outperforms the first two. The internal structure of the blockboard is uniform, the bonding force is large, the deformation is small, the surface flatness is good, and the nail holding force is strong. Therefore, the melamine board with blockboard as the base material is more durable and can better play the characteristics of panel furniture to resist assembly. The texture of MDF and particleboard is relatively loose, the nail holding force is poor, and the cost is lower than the former.
There are also differences in the steel plates of the melamine veneer press, which can make the effect of the surface of the board divided into a smooth surface, hemp surface (coarse, fine linen, and velvet), and relief surface (large relief and small relief). The pockmarked surface and the embossed surface are 2-3 yuan more expensive than the smooth surface, but they are generally used as cabinet doors, and the general cabinet body is still glossy.
Edge cracking
The melamine board makes the furniture look strong. The paper printed with color or imitation wood grain is fragile. The adhesive film formed after soaking in the transparent resin of the melamine board is much harder. It has a very good performance, and the furniture made with it does not need to be painted, and the surface naturally forms a protective film, which is wear-resistant, scratch-resistant, acid-alkali-resistant, hot-resistant, and pollution-resistant.
When consumers choose this type of panel furniture, in addition to taking into account the color and texture satisfaction, they can also identify the appearance quality from several aspects: whether there are stains, scratches, indentations, pores, whether the color gloss is uniform, whether there is a Bubbling phenomenon, whether there is local paper tearing or missing phenomenon, etc. If the veneer is cracked or damaged, it can be repaired by the following methods: first put a damp cloth on the damaged area, and then put a hot iron on the wet cloth to force the moisture into the veneer, so that the veneer becomes very tough and not easy shatter. In this way, you can scrape off the old glue first, then apply a layer of milky white glue on the base wood, and then apply a new layer of glue on the reverse side of the loose veneer, compact it, and wait until the glue is completely dry.
Environmentally friendly
Melamine board is light in weight, mildew-proof, fire-proof, heat-resistant, shock-resistant, easy to clean, and renewable. In addition to solid wood furniture, all kinds of high-end panel furniture have the participation of melamine board. Adding melamine boards to mid-to-high-end wardrobes can effectively prevent the environmental pollution problems caused by formaldehyde and urea-formaldehyde resins used as preservatives. In addition, melamine boards can also replace wooden boards, aluminum-plastic boards, etc. Grinding, anti-static, embossed, metal, and other finishes.
Melamine board referred to as melamine board, is a decorative board formed by hot pressing on the surface of particleboard, moisture-proof board, medium density fiberboard, or hard fiberboard. In the production process, it is generally composed of several layers of paper, and the number depends on the purpose.
The performance of MDF is better than the latter. The internal structure of MDF is uniform, the bonding force is greater than that of particleboard, the deformation is small, the surface flatness is good, and the nail holding force is strong. Therefore, the melamine board with MDF as the base material is more durable and can better play the characteristics of panel furniture to resist assembly. The texture of particleboard is relatively loose, and the cost is lower than the former.
Formaldehyde problem
No matter what kind of board, glue is indispensable in the manufacturing process. Therefore, the formed board will release free formaldehyde, but it is harmless to the human body under a certain concentration. Consumers recognize the quality of the board at the same time. , the most concern is the formaldehyde emission of the boards used in furniture. According to national standards, the formaldehyde emission per 100 grams of particleboard should be less than or equal to 30 mg; the formaldehyde emission per 100 grams of E1-grade MDF is less than or equal to 9 mg; E2-grade MDF, the formaldehyde emission is 9 mg. mg to 40 mg. That is to say, panel furniture whose formaldehyde emission is higher than the above standard should not be purchased. Consumers can ask businesses to issue a test report on furniture substrates to identify whether this indicator meets the requirements.
Melamine itself has little toxicity, is relatively stable, and will not be free of toxicity after curing. Whether the melamine board used for making furniture pollutes the air depends on the medium density board or particleboard base material used for the melamine board. If the formaldehyde emission of the base material reaches the environmental protection standard, melamine will not aggravate the material pollution, and the melamine board has no odor. The odor is emitted by the inferior quality of the medium density board, the paint used in the binder, or the additive containing formaldehyde and other substances. It is impossible to find a board that does not contain formaldehyde at all. The melamine on the market has also reached the national level standard. However, the accumulation of various furniture can easily cause the formaldehyde to exceed the standard in the renovated house. Therefore, it is necessary to maintain ventilation for several months after the renovation. , wait until the harmful gas in the air reaches the national standard before moving in.
Physical way to remove formaldehyde: Due to the long release cycle of formaldehyde in melamine board, it is also necessary to use an environmentally friendly and safe way to remove formaldehyde in daily life. It is the best physical removal method at present. The principle is that the porous structure of activated carbon provides a large amount of surface area, which makes it very easy to absorb and collect impurities. Just like magnetism, all molecules are attracted to each other. Because of this, a large number of molecules on the activated carbon can generate a strong gravitational force, so as to achieve the purpose of attracting the impurities in the medium to the pore size, among which the Yevi carbon is a kind of strong adsorption.