Baidu looked up, like pictures almost, we only heard of asbestos here, or on the BBS just know, there is a rock wool this [!]
Oh, I have learned something new. Who has the specific physical parameters of rock wool, such as density, thermal conductivity, mechanical properties and so on
Rock wool is basalt melt drawing made is a kind of excellent insulation materials, but in the ceramics glass wool so easy to handle, and cause skin itching. Asbestos is a magnesium silicate. It is a natural mineral. The dust produced during mining and processing can be deposited in human lungs. Asbestos has been included in industrial products only. But the excellent fire resistance of asbestos makes the industry can not do without this product, so people have gradually developed alumina fiber, garnet fiber instead of asbestos. But the excellent cost performance of asbestos still has no product to replace at present.
Cotton is a selection of basalt, diabase as main raw materials, auxiliary materials through a certain number of man-made fiber high temperature melt blowing made, has the characteristics of non flammable, non-toxic, light weight, low thermal conductivity, good insulation, sound-absorbing performance, good chemical stability, long life cycle, is the ideal materials in China International recognized. Its main types are rock wool board, rock wool felt, rock wool belt, rock wool pipe shell and so on.Asbestos is a natural fibrous siliceous minerals generally referred to, is a widely applied in building fire prevention board of silicate mineral fiber, natural mineral fiber is unique, it has good tensile strength and good heat resistance and corrosion resistance, not easy to burn, so it is widely used. There are many kinds of asbestos, the most common three are chrysotile asbestos (Bai Shimian), iron asbestos (brown asbestos) and bluestone (Lan Shimian), of which chrysotile asbestos is the most abundant and the most widely used. Asbestos itself is not toxic, it's the greatest harm from the fiber, which is a very small, almost invisible to the naked eye fiber, when these tiny fibers can be released after long time floating in the air, inhaled, inhaled the asbestos fiber victu years to accumulate in the human body. Attachment and deposition in the lungs, causing lung disease.
NoAsbestos is a natural fibrous siliceous minerals generally referred to, is a widely applied in building fire prevention board of silicate mineral fiber, natural mineral fiber is unique, it has good tensile strength and good heat resistance and corrosion resistance, easy combustion characteristics. Rock wool is basalt melt drawing made is a kind of excellent insulation materials, but in the ceramics glass wool so easy to handle.Because the two are fiber, are used in architecture, the appearance of similar, easy to be mistaken for the same product; but the essence is not the same, need to carefully identify and grasp its use can be judged.
