One: weighing the proportion. The main raw material of resin tile is polyvinyl chloride (PVC), the specific gravity of which is about 1.4.
Weighing a resin tile with a size of 1 square meter, the weight ÷ volume ≈ 1.4 proves that the main material of the resin tile is PVC, which can effectively ensure the service life of the product.
Weight ÷ volume > 1.4 proves that a large amount of heavy carbon synthetic resin calcium silicate and other fillers are added to the resin tile, which not only cannot guarantee the service life of the product, but also the product is very brittle, easy to fold the synthetic resin tile, only suitable for on simple temporary buildings. (Because volume measurement is not very convenient, we usually choose muffle furnace for ash combustion test.
Since the resin does not leave ash after burning, the ash is mainly non-flammable heavy calcium, so we can get the content of its calcium powder. Generally speaking, the higher the content of calcium powder, the better its quality.
The worse the quantity, the lower the cost. )
Second: burn with fire. Ignite a corner of the resin tile with fire, and after the fire source leaves, the flame synthetic resin tile immediately ceases to exist. The flames of fake and inferior resin tiles have the tendency to spread and have a large irritating odor.
The reason is: In order to make the synthetic resin tiles have a certain flexibility, the fake and inferior resin tiles with a large amount of heavy calcium carbonate are added with a plasticizer, and this additive has a combustion-supporting effect, so the synthetic resin tiles are produced. It does not meet the fire protection requirements and has poor weather resistance, and cracks under the irradiation of synthetic resin tiles in the sun. (Synthetic resin tile, the surface layer uses imported resin ASA, because ASA is a non-flammable resin and is very expensive. Therefore, if the surface is ignited, the tile will burn, which just shows that it is made of resin, which has high color retention, resistance to aging properties.)
The third: hand weight, percussion. The resin tile is light in texture, and the board-to-board knocking has a dull feeling; the fake and inferior imitation resin tile has a heavy feeling when weighed by hand. The board-to-board percussion sound is crisp.
Fourth: look at the appearance. The resin tile has a clear outline and the material itself is shiny; otherwise, it is a fake and inferior imitation resin tile. (The asa resin used on the surface of the resin tile is usually a matte color. If it is a reflective surface, most of the resin used is domestic, and the amount used is small, and the tile is easy to fade.)