Composite wood flooring is divided into laminate flooring, solid wood composite flooring.
Laminated wood flooring is not only not need to be polished, waxed, and maintained, but also has the advantages of convenient installation and novel styles. It has been favored by more and more consumers in China. Laminated flooring entered China in 1995 and has become a compelling industry. At present, the annual output of laminate flooring in Europe is the largest in the world, at 200 million square meters. The annual output in China has reached more than 40 million square meters. The development is truly amazing, and there are more than 100 brands. How to choose the following ten references? aspect:
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First, the surface wear-resistant rotation
This indicator is based on the use of occasions, home generally about 6,000 rpm, about 10,000 rpm in public places. Nowadays, there are four main types of wear-resisting layers for laminate flooring on the market: floors with a content of about 30 g per square meter of aluminum oxide, with a wear resistance of about 4,000 rpm; a wear resistance of about 38 g; and a content of about 5,000 rpm; The abrasion resistance of about 44g is about 9000 rpm; the abrasion resistance of about 62g is about 18000 rpm.
Second, the free formaldehyde content
Laminate flooring contains a certain amount of formaldehyde in the adhesive. Excess formaldehyde is harmful to the human body. If the human body is in a high-concentration formaldehyde environment for a long time, there is a danger of cancer. China has promulgated mandatory standards for air formaldehyde concentration in public places, and regulations do not exceed 0.12 mg/m3. The inspection method for laminate flooring is adopted by the country as “perforation extraction methodâ€, and the regulations do not exceed 30mg/100g, preferably 9mg/100g or less.
Third, the water absorption thickness expansion rate
The higher the index, the more inflated the floor. The state stipulates that this indicator is within 2%.
IV. Internal bond strength
The quality of the glue between the internal fibers of the substrate is reflected. The greater the strength, the tighter the bonding between the various layers of the wooden floor. The national regulations stipulate that this index should reach 1Map or more.
Fifth, the surface is resistant to cigarette burning
Put the cigarette on the floor to see whether the surface has cracks, dark spots, or bubbling. If not, the floor has good flame retardancy.
Six, density
The higher the density, the better the mechanical properties of the product and the better the impact resistance. However, under the same conditions, the water-absorption thickness expansion ratio is too large and the dimensional stability is worse; in addition, the higher the density, the more the product cost will increase.
Seven, static bending strength and elastic modulus
These two are important indicators that reflect the mechanical strength of the product, mainly determined by the quality of wood and glue, and ultimately reflected in the combination of floor and gutter resistance to damage. The higher the index, the better the flexural strength of the floor against external forces.
Eight, scratch-resistant surface
The scratch resistance on the surface reflects the product's ability to resist sharp hard objects. The higher the surface scratch resistance, the stronger the resistance to sharp hard objects.
Nine, surface impact resistance
Consumers of this index can self-test, with a heavy ball on the surface of the product, if there is a more obvious surface depression, the impact resistance of the surface is poor.
Ten, anti-peeling
This indicator reflects the quality of the glue between the surface decorative layer and the substrate of the laminate flooring. If the quality of the glue is poor, the decoration layer will peel off after the product is used for a period of time.
For the above items, consumers are unable to determine their own products. Only look at product test reports. Once on the market, simply determining the quality of laminate flooring with wear-resistance and free formaldehyde content is not comprehensive; in addition, the market price of such flooring varies greatly, but not the higher the price, the better the quality, because of the impact on price. The factors are various, and consumers must fully consider and comprehensively consider various technical indicators and tradeoffs.
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