Physical properties of quartz stone plates
The quartz stone names commonly sold on the market today are called polymer composite materials, synthetic stones, and artificial marble. The product is a decorative artificial stone plate formed by mixing and stirring quartz sand (silica SiO2) and unsaturated resin and corresponding auxiliary agents and pigments. The surface of the sheet is smooth, dense, non-porous and rich in color, which is comparable to natural marble.
China's quartz stone manufacturing originated in the 1990s, but due to technical misunderstanding at the time, raw materials and additives, the products at that time were prone to breakage, water absorption and discoloration, head deformation, and high styrene volatilization. The presence. Therefore, the market has not been fully promoted, and market demand can only be imported. Until the beginning of this century, with the continuous improvement of China's quartz stone manufacturers' research and development capabilities and production technology, China's quartz stone production has been ranked among the top in the world so far (production equipment manufacturing and plate production research and development technology are all state-owned).
However, for many people, it is still difficult to buy quartz stone. In fact, the reason is very simple. It is not enough to understand quartz stone! Let's take a look at the main properties of quartz stone.
Wear-resisting, scratch-resistant and anti-penetration: Quartz stone is produced under high pressure and high vibration under vacuum conditions. The density of the sheet is 2.3-2.6 g/m3, and the hardness is higher than the mode hardness of 5 or more and up to the Mohs hardness of 7. The water absorption rate is 0.05% (industry standard), and the general board can reach 0.02%.
High temperature resistance and environmental protection: Quartz stone plates have outstanding high temperature resistance and can withstand 300° high temperature, which means that there is no problem with boiling water. Mainly because the main filler of the plate is quartz sand (SiO2 ≥ 99.5 - 99.9%, Fe2O3 ≤ 0.001%), that is, silica (melting point 1750 °). Because it does not contain heavy metal impurities, and has to be selected and mixed before production and use, there is no radiation source. The board is environmentally friendly, non-toxic and harmless, and is an environmentally friendly material.