The difference between glass wool, rock wool, mineral wool
Mineral woolCotton like short staple fibers made from silicate melts, including slag cotton, rock wool, glass wool and ceramic fibers, generally only refer to the first two.By the above two concepts, we should compare the difference between rock wool and slag cotton.
Originated in Hawaii. Rock wool products are high-quality basalt, dolomite as the main raw material, the high temperature above 1450 DEG after melting by four axis high speed centrifugal centrifuge international advanced fiber, and spray with a certain amount of binder, dustproof oil, water repellent cotton collector after collection, through the pendulum method, and three-dimensional method after cotton spreading curing, cutting, rock wool products form different specifications and applications.
Glass wool belongs to a kind of glass fiber, it is a kind of man-made inorganic fiber. Glass wool is the molten glass fibrosis, the formation of cotton like material, chemical composition of glass, is a kind of inorganic fibers. With good forming, small volume density, thermal conductivity, both thermal insulation, sound-absorbing performance, corrosion resistance, chemical stability.
1., raw materials are different: to metallurgical slag or fly ash as the main raw material called slag cotton; basalt and other rock as the main raw material called "rock wool"".2. the coefficient of acidity of rock wool and slag cotton is also different. Rock wool acidity coefficient MK generally greater than 1.5, and even up to more than 2; slag cotton MK generally can only be maintained at around 1.2, it is difficult to more than 1.3.3. because of the difference between chemical composition and acidity coefficient of rock wool and slag cotton, they also show some differences in performance.(1) the difference of water resistance(2) difference of heat resistance;(3) difference in corrosion resistance
