Inorganic thermal insulation materials are not only very environmentally friendly, but also have the characteristics of fire prevention and moisture prevention, so they are widely used in buildings. So what are the inorganic thermal insulation materials? What are the characteristics of inorganic thermal insulation materials? Let's take a look at it with Xiaobian!
What are the inorganic thermal insulation materials?
Inorganic thermal insulation materials include: expanded perlite, glass wool, hollow vitrified beads, rock wool, closed-cell perlite, mineral wool, and light-weight block self-insulation system, etc., and their thermal conductivity is generally below .5 W/(m.K), which can be used in different occasions.
What are the characteristics of inorganic thermal insulation materials?
1. Thermal conductivity
Thermal conductivity is an important index to determine the quality of products, and the greater the thermal resistance of plates, the better the thermal insulation. In the inorganic insulation board, the thermal conductivity of inorganic vacuum inorganic insulation board is the lowest, and the insulation board used is also the thinnest and the most material-saving. According to estimates, if the external wall of the house is affixed with inorganic vacuum inorganic materials, the room rate will increase by about 5% because of its thinness under the same floor area ratio.
2. Fire-proof performance of board
Fire-proof performance is an important basis for judging the quality of products. However, the fire rating of inorganic insulation board products used in China's market can generally reach above B2. However, the combustion performance of inorganic vacuum inorganic insulation board can reach Class A incombustible.
3. Weather resistance
The products need to be tested for weather resistance before leaving the factory. During the test, high temperature-drenching water cycle and heating-freezing cycle should be carried out for many times, and the system should not have cracks, deformation, pulverization, hollowing and peeling.
4. Tensile strength
The product directly faces external forces such as its own gravity and wind force after being put on the wall, and reasonable technology and materials play a key role in solving the tensile strength of inorganic thermal insulation board. Inorganic vacuum inorganic insulation board is composed of inorganic vacuum inorganic insulation board, bonding mortar, anchor bolt, plastering paste and facing material, which has the characteristics of good compressive strength and tensile strength.
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