At present, the quartz stone commonly sold on the market is called polymer composite materials, synthetic stone, artificial marble. The product is made of quartz sand (silica SiO?) A decorative artificial stone plate formed by die casting after mixing with unsaturated resin and corresponding auxilaries and pigments. The surface of the plate is smooth and dense without holes, and the color is rich and comparable to natural marble.
China’s quartz stone manufacturing originated in the 1990s, but due to the technical misdirection at that time, the mismatch of raw materials and auxiliaries led to the existence of products at that time, easy to break, water absorption and discology, warp deformation, and high quality problems of “styrene” volatilization. Therefore, it has not been fully promoted to the market, and the market demand can only be imported. Until the beginning of this century, with the continuous improvement of China’s quartz stone manufacturers R & D capabilities and production technology, so far China’s quartz stone output has ranked in the forefront of the world (production equipment manufacturing and plate production R & D technology are all state-owned).
But for many people to buy quartz stone is still more difficult, in fact, the reason is very simple, is not enough to understand quartz stone! Let’s take a look at the main properties of quartz stone.
Abrasion resistance, anti-penetration: Quartz stone is produced under vacuum conditions through high pressure and high vibration. The density of the plate is 2.3-2.6g/ m3, and the hardness is higher than the mode hardness of 5 or more, up to Mohs hardness of 7. The water absorption rate is 0.05% (industry standard), and the general plate can reach 0.02%.
High temperature resistance, environmental protection: quartz stone plate has outstanding high temperature resistance, generally can withstand 300° high temperature, that is to say, there is no problem to withstand the problem of boiling water. Mainly because the main filler of the plate is quartz sand (SiO2≥ 99.5-99.9%, Fe2O3≤0.001%), that is, silicon dioxide (melting point 1750°). Since it does not contain heavy metal impurities, and must be selected before production and use, there is no radiation source, and the plate is environmentally friendly, non-toxic and harmless, and is an environmentally friendly material.