Characteristics of insulation materials
Jul 19, 2021
Insulation material industrial equipment and pipelines are insulated, using thermal insulation measures and material aerogels were first applied to the thermal insulation linings of space suits developed by NASA. It has the characteristics of low thermal conductivity, low density, high flexibility, fireproof and waterproof. Its thermal conductivity at room temperature is 0.018W/(K·m) and it is absolutely waterproof, and its thermal insulation performance is 3-8 times that of traditional materials.
The thermal insulation lining has the characteristics of low thermal conductivity, low density, high flexibility, fireproof and waterproof.
Light weight, generally 10-96kg/m3, 20kg/m3 or less is felt, 24-48kg/m3 is medium-hard board, 48-96kg/m3 is hard board, of which 48kg/m³ can be used as a ceiling, with a softening point of 500°C At around 300°C, the amount used in the United States is larger, k=0.9.
Calcium silicate insulation products were successfully developed in the 1970s in China. They have the characteristics of high compressive strength, low thermal conductivity, convenient construction and repeated use, and are widely used in power systems.
Most of the domestic production is generally in small workshops, and then four production lines have been introduced from the United States, with advanced technology, instant fiber spinning, dry needle felt, stable quality, and temperature resistance of 800-1250°C.
Features: The acidity derivative is above 2.0, high temperature resistance, and the general chemical pipeline is more than 1000°C. This material must be used. The melting temperature is about 2000°C.
The main products are polystyrene foam and polyurethane foam, but there are problems with the application in the construction field. It is mostly used for steel mesh sandwich panels and color steel composite sandwich panels. Although there are certain restrictions, they have developed rapidly. As building fire protection requirements for materials become more and more stringent, new issues have been proposed for the application of this material.
Insulation materials can collect excess heat and release them steadily in a timely manner. The gradient changes are small, which effectively reduces the loss. The room temperature can be trended and the winter insulation can play a balanced role. In the decoration of the new building and the renovation of the old building, it overcomes the congenital defects such as wall cracks, condensation, mildew, peeling, etc.; and it is safe and reliable to bond with the base as a whole, with good randomness, no cavities, and avoiding negative wind pressure tearing and Fall off. It can effectively overcome the problems of side ribs after the panel splicing, and the external corners of the outer corners are deformed and the tiles fall off. The organic matter in the material reacts with the free acid existing in the main wall substrate to form a compound, which penetrates into the micropores of the main wall to form a community, ensures dry adhesion, and improves the wet adhesion retention rate, with excellent adhesion.
