Materials with better thermal insulation performance

Materials with better thermal insulation performance

Materials with good thermal insulation must take certain measures to cool down in this hot summer, and wall insulation materials can be said to be a good solution. There are still many materials on the market. Let's take a look at the materials with better thermal insulation.

The material with better thermal insulation is/|||| 0/||| 0/,and the reflective thermal insulation coating is a kind of coating. Because it is a coating, it is very simple to operate. As long as it is sprayed on the roof or wall as a whole, it can effectively insulate heat, with low cost and service life of 5-8 years. It is a popular material at present, but its service life is a little short.

Its principle is also very simple. The reflective thermal insulation coating consists of base material, thermal reflective material, filler and additive. Thermal insulation is achieved by effectively reflecting sunlight. Thin-layer heat insulation reflective coating is the representative of this kind of coating.

2, extruded board (extruded polystyrene board)

Extruded board (XPS) is a hard board made of polystyrene resin by continuous extrusion and foaming, with a closed bubble structure inside.

It is a thermal insulation material with high compressive strength, good water absorption, good air tightness, light weight, long service life and low thermal conductivity.

Application scope of extruded board:

Extruded board products are widely used in building roof insulation, steel roof insulation, building wall insulation, building ground, square ground, ground frost heave control,

Air conditioning and ventilation pipes, etc.

3. Polyurethane foam

Polyurethane rigid foam is a new type of polymer material, which has excellent properties such as low bulk density, low thermal conductivity, high closed cell rate and corrosion resistance.

Composite board is an organic thermal insulation material with low thermal conductivity (≤0.022). The thermal insulation effect of 5cm thick composite board is equivalent to that of/|||| 0/m thick concrete. Composite board is an ideal thermal insulation product to achieve the goal of 75% building energy saving in China.

Flame-retardant: the composite board will not burn through when burned at 1000℃ for 30 minutes.

Durable weather resistance: after more than 6 months of weather resistance test, the composite board has stable performance and can last as long as the building.

Good dimensional stability: the compressive strength of the composite plate reaches above 200kp, and it has good temperature resistance and no deformation.

Low-carbon and environmental protection: the composite board is made of bio-based raw materials, fluorine-free foaming, and does not use harmful substances prohibited or restricted by the state, which is environmentally friendly.

4. Rock wool board

Rock wool board uses:

Rock wool insulation materials are mainly used for fire prevention and sound insulation of building partitions and curtain walls, roof and envelope insulation, and geothermal system insulation; Thermal insulation and fire prevention of industrial furnaces, ovens, large-diameter storage tanks and ships. But it is hygroscopic, so pay special attention to rain protection, especially in rainy days.

To sum up, what are the materials with good thermal insulation effect?

A: All kinds of materials have advantages and disadvantages. In fact, the effect is quite good, and each has its own needs.

Materials with better insulation effect 2 What are the wall insulation materials?

/|||| 0/,polystyrene foam board

Polystyrene foam board is one of the common wall insulation materials. Also known as foam board and EPS board, it is a white object formed by preheating expandable polystyrene beads containing volatile liquid foaming agent in a mold and heating. According to the structural characteristics of micro closed cells, they are mainly used for building wall, roof insulation and composite board insulation. It is divided into expandable EPS board (benzene board) and continuous extruded XPS board (extruded board).

2. Polyurethane foam

Polyurethane foam is a special polyurethane product filled with polyurethane prepolymer, foaming agent, catalyst and other components in pressure-resistant aerosol cans. When the material is ejected from the aerosol can, the foamed polyurethane material will expand rapidly and solidify with the air or moisture in the contact matrix to form foam.

The cured foam has many functions such as caulking, bonding, sealing, heat insulation and sound absorption. It is an environmentally friendly, energy-saving and easy-to-use wall insulation material, but it is also a highly flammable substance.

3, glass fiber insulation cotton

Glass fiber cotton is an inorganic nonmetallic material with excellent performance, and it is also one of the three common internal wall insulation materials. It is made of glass balls or waste glass through high temperature melting, drawing, winding and weaving. Its monofilament diameter ranges from a few microns to more than 20 meters microns, which is equivalent to a hair filament.

/|||| 0//20-/|||| 0//5, each bundle of fiber precursors is composed of hundreds or even thousands of monofilaments.

Glass fiber thermal insulation cotton has the characteristics of good insulation, strong heat insulation, good sound absorption effect, long fiber and high tensile properties. Widely used in building air conditioning insulation system, decorative wall sound insulation, decorative ceiling, chemical power and other industries equipment insulation.

4. Glass fiber

Glass fiber is the most commonly used wall insulation material in modern times. Because of its manufacturing method, glass fiber can minimize heat transfer by effectively weaving tiny glass fibers into insulating materials. The main disadvantage of glass fiber is the danger of handling it.

Because glass fiber is composed of finely woven silicon material, glass powder and tiny glass fragments. Without proper safety equipment, these will do harm to eyes, lungs and even skin. However, when proper safety equipment is used, it is safe to use glass fiber.

How to choose wall insulation materials?

/|||| 0/,depending on the temperature range of the material

According to the temperature range of wall insulation materials, there are low temperature insulation, medium temperature insulation and high temperature insulation. If low-temperature insulation materials are selected, materials with a temperature about/|||| 0/00-/|||| 0/50℃ higher than the long-term use temperature can be selected.

2, according to the form of thermal insulation materials

There are many forms of wall insulation materials, such as cotton, paper, felt, board, special-shaped parts, textiles and so on. Due to different types of physical characteristics, these different forms of thermal insulation materials will be different.

3. Look at the price of wall insulation materials.

After determining the range of thermal insulation materials, calculate the cost according to the material price, and choose materials with good cost performance. Generally speaking, the selection of thermal insulation materials is to select the thermal insulation materials whose shape, physical characteristics, chemical characteristics, thermal insulation performance meet the use environment and environmental protection level meet the design requirements according to the use environment, and finally determine the thermal insulation materials to be used after cost accounting.

Materials with better thermal insulation performance 3 What are the roof thermal insulation materials?

I believe that everyone knows very little about roof insulation materials, and generally these materials are widely used. Literally, I believe everyone already knows that heat insulation materials must have the function of heat insulation first, in addition, the roof must have the characteristics of sun protection and rain protection. Here are the details of roof insulation materials.

In the process of decoration, choose the decoration owner of the top floor, focusing on the construction of heat protection and insulation. Roof insulation material is also a decorative material in great demand in recent years. What are the roof insulation materials? Many people don't know that the popular roof insulation materials are polyurethane rigid foam, polystyrene board insulation layer, FS cement fly ash insulation roof, FB new composite roof panel and so on. This paper introduces different types of new roof insulation materials that owners who choose the top floor should know in the decoration process.

/|||| 0/,polyurethane rigid foam roof insulation material

Polyurethane rigid foam is a kind of low-density microporous foam roof insulation material with closed-cell structure, which has low thermal conductivity, good thermal insulation performance, low water absorption and convenient construction and operation. In China, the application of rigid polyurethane foam on roofs is still in the initial stage, mainly through direct spraying. Generally, it is sprayed and foamed on site, which can be used on the roof of any complex structure. Usually 4 ~ 6 people can spray foam 15m3 or more every day. According to the spraying thickness of 30mm, the daily spraying area reaches 500m2, which is several times that of traditional materials.

2, polystyrene insulation layer roof insulation material

Polystyrene board is a roof insulation material board made of cement and broken polystyrene foam. The polystyrene board is located between the fine stone concrete surface layer and the waterproof layer, which not only has the function of thermal insulation, but also has the function of isolation layer to prevent the waterproof layer from cracking when the fine stone concrete surface layer expands with heat and contracts with cold. In addition, under the condition of the same thermal insulation effect, polystyrene insulation layer can reduce the cost and save money.

3.FS cement fly ash thermal insulation roof insulation material

FS thermal insulation material is made of fly ash, sulphoaluminate cement, foam stabilizer and foaming agent by casting and foaming at normal temperature and pressure. Its environmental protection and comprehensive utilization are good. FS thermal insulation material has good thermal insulation performance because of its low density and low thermal conductivity. More importantly, it has a uniform closed-cell structure with low water absorption and natural moisture content. In the construction, it can not only save the process of drenching and wetting, but also avoid the disadvantages caused by moisture absorption of insulation layer after the construction of cement mortar leveling layer is completed.

The above are commonly used roof insulation materials. Knowing the characteristics and prices of these materials can help us choose better roof insulation materials. So much for today's introduction of roof insulation materials. Generally, we will choose higher-priced insulation materials. You can choose thermal insulation materials from the materials in the article, and then choose according to your actual situation.