Rubber and plastic insulation materials are a new type of green and environmentally friendly materials derived from the rubber and plastic industries and are a by-product of petroleum. It has excellent properties such as softness, bending resistance, cold resistance, heat resistance, flame retardancy, waterproofness, low thermal conductivity, shock absorption, and sound absorption. It can be widely used in various cold and hot medium pipes and containers in industries and departments such as central air conditioning, construction, chemical industry, medicine, light textile, metallurgy, shipbuilding, vehicles, and electrical appliances.
The development history of rubber and plastic insulation materials can be traced back to the 1970s. Foreign countries have generally attached importance to it and strived to significantly reduce energy consumption, thereby reducing environmental pollution and greenhouse effects. The foreign rubber and plastic insulation material industry has a long history, and rubber and plastic insulation materials for building energy conservation account for the vast majority. For example, since 1987. building rubber and plastic insulation materials in the United States have accounted for about 81% of all insulation materials. After Denmark used rubber-plastic insulation materials, the heating area in 1985 increased by 30% compared with 1972. but the heating energy consumption decreased by 3.18 million tons of standard coal, achieving significant social and economic benefits.
Rubber-plastic insulation materials are widely used for their excellent insulation performance, aging resistance and corrosion resistance. It is made of high-performance rubber-plastic materials, has good insulation effect, can effectively resist the invasion of cold air and keep the room warm. Compared with traditional insulation materials, the insulation effect is more obvious and can save a lot of energy. At the same time, it has good aging resistance and corrosion resistance, and will not have aging, breakage and other problems in long-term use. It can not only extend the service life, but also reduce the cost of maintenance and replacement.
Advantages of rubber insulation materials:
1. Excellent thermal insulation performance
Rubber-plastic insulation materials have extremely low thermal conductivity. When the average temperature is 0℃, the thermal conductivity can be as low as 0.033w/mk. Under the same external conditions, it only needs about half the thickness of other insulation materials to achieve the same insulation effect. Its closed-cell structure gives it good durability, can maintain thermal insulation for a long time, effectively prevents heat transfer, and can significantly reduce heat loss in winter and heat entry in summer. For example, using rubber-plastic insulation boards in the exterior and interior walls of buildings can effectively improve the thermal insulation performance of the walls and reduce energy consumption; installing rubber-plastic insulation boards on the roof can reduce heat absorption and loss and improve the energy efficiency of the building.
2. Good flame retardant and fireproof performance
Rubber-plastic insulation materials contain a large amount of flame retardant and smoke-reducing raw materials. The smoke concentration produced during combustion is extremely low, and it will not melt when exposed to fire, and will not drip a flaming fireball. It will automatically extinguish quickly after leaving the fire source. According to GB8624-1997 "Classification Method for Combustion Performance of Building Materials", rubber-plastic insulation products are B1-level flame-retardant materials, ensuring safety and reliability. In the event of a fire, rubber-plastic insulation materials can effectively slow down the spread of the fire and buy precious time for personnel evacuation and fire rescue. At the same time, during the combustion process, the rubber-plastic insulation board produces less smoke and does not release toxic gases, which greatly reduces the danger of fire.
3. Other advantages
Rubber-plastic insulation materials have many excellent properties such as bending resistance, cold resistance, heat resistance, waterproofness, shock absorption, and sound absorption. It has strong weather resistance and can adapt to various climatic conditions. Whether it is humid, cold or high temperature environment, it can maintain stable performance. Rubber-plastic insulation materials are closed-cell structures. It is difficult for water in the outside air to penetrate into the material. It has excellent resistance to water vapor penetration. There is no need to add a vapor barrier layer on the surface of the cold insulation layer. Even if the product is scratched, it will not affect the overall vapor barrier. It is both an insulation layer and a moisture barrier. In addition, rubber-plastic insulation materials do not contain chlorofluorides that are harmful to the atmosphere, meet the requirements of ISO14000 international environmental certification, do not produce harmful substances during production and use, do not breed bacteria, and are safe and environmentally friendly. At the same time, it has high elasticity, has the function of reducing vibration and absorbing noise, and can minimize the vibration and resonance of chilled water and hot water pipes during use.
Application in building insulation:
1. Wall insulation
Using rubber-plastic insulation boards in the exterior and interior walls of buildings can effectively improve the thermal insulation performance of the walls and reduce energy consumption. Rubber-plastic insulation materials have extremely low thermal conductivity, which can significantly reduce heat loss in winter and heat entry in summer. For example, when the outdoor temperature is minus 10 degrees Celsius, walls without rubber-plastic insulation materials may cause the indoor temperature to drop rapidly, while walls with rubber-plastic insulation materials can effectively block the invasion of cold air and keep the indoor temperature relatively stable. At the same time, the closed-cell structure of rubber-plastic insulation materials gives it good durability, and long-term use will not reduce the insulation effect. According to statistics, after using rubber-plastic insulation boards for wall insulation, the energy consumption of buildings can be reduced by about 30%.
2. Roof insulation
Installing rubber-plastic insulation boards on the roof can reduce heat absorption and loss and improve the energy efficiency of the building. The roof is the part of the building with a large contact area with the external environment, which is easily affected by solar radiation and temperature changes. Rubber-plastic insulation materials can effectively block the transfer of heat and reduce the temperature fluctuation of the roof. In summer, it can reduce the absorption of heat and keep the room cool; in winter, it can reduce the loss of heat and increase the temperature in the room. In addition, rubber-plastic insulation materials also have good waterproof properties, which can prevent rainwater from penetrating into the roof structure and extend the service life of the roof.
3. Pipeline insulation
Used for the insulation of hot water, steam and other pipes to reduce heat loss and improve energy efficiency. In buildings, the pipeline system is an important channel for transporting hot water, steam and other energy. If the pipeline is not insulated, a large amount of heat energy will be lost during the transportation process, resulting in energy waste. Rubber-plastic insulation materials have good insulation properties and can effectively reduce the heat loss of the pipeline. For example, for hot water pipes, the use of rubber-plastic insulation materials can greatly reduce the drop in water temperature during the transportation process and improve the use efficiency of hot water. At the same time, rubber-plastic insulation materials also have flame retardant properties, which can slow down the spread of fire when a fire occurs, and buy precious time for personnel evacuation and fire rescue.
In short, the application of rubber and plastic insulation materials in buildings not only helps to reduce the energy consumption of buildings and improve energy efficiency, but also provides important guarantees for improving building fire safety. With the improvement of environmental awareness and the improvement of building energy-saving standards, the application prospects of rubber and plastic insulation materials in the construction field will be broader.
