Insulation materials refer specifically to a class of insulation materials used in building walls, which can be divided into exterior wall insulation materials, interior wall insulation materials, and roof insulation materials according to the location of use; according to the inherent composition of insulation materials, they are divided into inorganic insulation materials and organic insulation materials. material. So what are the building insulation materials? What is the price of building insulation materials ? For friends who have needs in this regard, it is one of the topics worth paying attention to. If you have needs in this regard, you may wish to come with me to understand the relevant knowledge of building insulation materials quotation !
Insulation material characteristics
Insulation of industrial equipment and pipelines, the use of thermal insulation measures and materials aerogel was first applied to the thermal insulation lining of space suits developed by NASA. It has the characteristics of low thermal conductivity, low density, high flexibility, fireproof and waterproof. Its normal temperature thermal conductivity is 0.018W / (K · m) and it is absolutely waterproof. 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, felt below 20kg / m3, medium-hard board 24-48kg / m3, hard board 48-96kg / m3, of which 48kg / m3 can be used as ceiling, softening point is 500 ° C Around 300 ° C for heat preservation, the larger dosage in the United States, k = 0.9.
Calcium silicate insulation products were successfully developed in the 1970s in China. They have the characteristics of high compressive strength, small thermal conductivity, easy construction, and reusability. They are widely used in power systems.
Most of the domestic production is generally in small workshops. Afterwards, four production lines were successively introduced from the United States. The technology is advanced, fast-dissolving and spinning, and dry needle punched felt. The quality is stable and can withstand temperatures of 800-1250 ° C.
Features: acidity derivative above 2.0, high temperature resistance, general chemical pipelines more than 1000 ° C, this material must be used. The melting temperature is around 2000 ° C.
The main products are polystyrene foam and polyurethane foam, but there are problems in the construction field. They are mostly used in steel wire sandwich panels and color steel composite sandwich panels. Although there are certain restrictions, they have developed rapidly. As the requirements for materials for building fire protection become more and more strict, new issues have been proposed for the application of materials.
Insulation material can collect excess heat and release it timely and steadily. The gradient change is small, which effectively reduces the amount of loss. It can be balanced at room temperature and winter insulation. In the decoration of new buildings and the renovation of old buildings, it overcomes the inherent defects of wall cracks, condensation, mildew, peeling, etc .; and it is safe and reliable to bond with the substrate as a whole, with good randomness and no cavity, to avoid negative wind pressure tearing and Fall off. It can effectively overcome the problems of the edge ribs after the splicing of the plates and the shedding of the deformed facing bricks outside the male corner. The organic matter in the material reacts with the free acid present in the base of the main wall to form a compound, which penetrates into the pores of the main wall to form a community to ensure dry adhesion and improve the wet adhesion retention rate, and has excellent adhesion. Raw materials such as float beads and brucite fibers (tubular fibers) are selected. The structure forms a closed hydrophobic microporous cavity structure as a phase change material carrier, which can ensure the long-term practicality of the phase change material.
Types of insulation materials
There are many types of insulation materials, and the application range is also very wide. It can be divided into outer wall insulation materials, inner wall insulation materials, roof insulation materials, thermal air conditioning insulation materials, steel structure insulation materials, and inorganic insulation materials.
External wall insulation materials: silicate insulation materials, ceramic insulation materials, polystyrene powder particles, steel mesh mining cement foam board (shule board), extruded plastic board XPS, rigid foam polyurethane on-site spraying, rigid foam polyurethane insulation board, Foamed cement board, grade A inorganic fireproof and thermal insulation mortar.
Roof insulation materials: ceramic insulation board, XPS extruded plastic board, EPS foam board, perlite and perlite brick, vermiculite and vermiculite brick, foamed cement.
Thermal and air-conditioning insulation materials: phenolic resin, polyurethane waterproof and insulation integration, rubber and plastic sponge, polyethylene, polystyrene foam, glass wool, rock wool.
Steel thermal insulation materials: polystyrene, extruded plastic board, polyurethane board, glass wool roll felt, etc.
Inorganic insulation materials: foamed cement, YT inorganic active wall insulation materials.
Insulation material offer
Different brands of insulation materials, of course, quotes for insulation materials will vary. The quotation of insulation materials ranges from 200 yuan to 2000 yuan. It is recommended that you go to the market to investigate before purchasing.
Note: This price is for reference only! Due to different regions, of course, the price will vary. If you want to know more about the relevant price details, please refer to the local dealers!
Insulation material construction process
1. Prepare the scaffolding, wooden ladder and other tools needed on site, and protect the legs to protect the finished roof. High-ranking personnel must bring safety belts, safety helmets, and fasten the belts. Carry dry powder fire extinguishers at any time to prevent fires.
2. Clean the dirt on the surface of the air duct so that the glue can be painted, and then transport the material to the site. The air duct measurement is carried out by the material designer. All steps such as glue must be treated hygienically (paved with tarpaulin or wooden board), brushed on to keep the surface clean.
3. Install in accordance with the steps, apply glue on the surface of the iron duct, apply glue on the surface of the insulation board, then apply the glue on the bottom, then both sides, and finally the top in order, the surface of the connection between the two sections of the air pipe, and the insulation flange bead brush Glue, lay the bead to complete the heat insulation installation of this part, and so on, according to this step cumulative construction.
Development status of insulation materials
Thermoplastic organic foam of thermal insulation material has the characteristics of light weight, high efficiency, etc., shrinks and melts in fire, drip and burn; thermosetting thermal insulation material is FLOLIC as the main raw material, blended with a variety of inorganic fillers, which is a kind of high Molecular synthetic materials. It has the advantages of non-combustion, low thermal conductivity, no freon, wide temperature range, good chemical resistance, water resistance, aging resistance, convenient construction and beautiful appearance, especially with excellent fire resistance and low temperature resistance While showing its broad application prospects, it is an updated product of today's organic thermal insulation materials, provides new concepts of thermal insulation, energy saving, and environmental protection, and is one of the most advanced and perfect thermal insulation material systems. Thermosetting organic foam burns and carbonizes in case of fire, and carbon deposits self-resistance. This shows that thermosetting organic foam has better fire resistance than thermoplastic organic foam. Experiments show that B2 grade thermosetting organic foam is superior to B1 grade thermoplastic organic foam in fire resistance. Scientific research has proved that the fire resistance of B1 thermosetting organic foam is even better than that of ordinary glass wool and other A-grade inorganic fiber insulation products. The carbon deposit flame retardant layer formed when the thermosetting organic foam is burning can prevent the flame from spreading. When choosing organic thermal insulation materials, not only the combustion grade should be limited, but also the combustion characteristics should be distinguished.
Editor's summary: Before 1980, the development of thermal insulation materials in China was very slow, and few thermal insulation materials factories can only produce a small amount of expanded perlite, expanded vermiculite, slag wool, ultra-fine glass wool, microporous calcium silicate and other products There are few mineral wool factories with a production capacity of less than 10,000 tons, and there are only three thermal insulation materials for bulk cotton and calcium silicate, with an annual output of 8,000 cubic meters. The quantity and quality of products can not meet the requirements.
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