In the late 1970s, rubber and plastic thermal insulation materials began to be used in building energy conservation in some developed countries. For example, after Denmark used rubber and plastic thermal 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. It can be seen that foreign building energy conservation laws and regulations have achieved significant social and economic benefits over the past 30 years. Rubber and plastic thermal insulation materials are also one of the thermal insulation materials. Now, let's introduce the classification, characteristics and uses of rubber and plastic thermal insulation materials in detail.
Classification of rubber and plastic insulation materials
Classification by material composition:
1. Organic thermal insulation materials
2. Inorganic thermal insulation materials
3. Metal thermal insulation materials
Classification by material shape:
1. Loose thermal insulation materials
2. Plate type thermal insulation material
3. Overall thermal insulation material High foaming polyethylene thermal insulation material
High flame retardant polyethylene and high foaming products are ideal materials for thermal insulation and cold insulation in petrochemical industry, construction industry and refrigeration industry.
Polyethylene high foaming product is a new type of widely used thermal insulation and waterproof sound-absorbing material, which has a fine independent closed cell structure and is characterized by small density, low thermal conductivity, non water absorption, good flexibility, aging resistance, corrosion resistance, water insulation, vapor resistance, etc. It is widely used in buildings, hotels, apartment roofs, walls, central air conditioners, construction industry insulation, sound absorption, shockproof and other parts.
Hard polyurethane insulation material product guide: hard polyurethane series products are the replacement products of insulation materials produced by our factory with the introduction of foreign advanced technology. With its light weight, low density, high strength, low thermal conductivity and other properties, it has been widely used and rapidly promoted and developed in the domestic construction market. Rigid polyurethane insulation materials can be made into various plates, pipes and tiles according to user requirements, and can also be used for on-site pouring foaming operations or spraying operations. The outer protective layer of polyurethane thermal insulation material can be made of fiberglass shock proof shell or black yellow double polymer yellow jacket to enhance the compressive strength and corrosion resistance of the thermal insulation layer. It is mainly used for various pipeline cold storage, storage tank, pipeline, insulation, partition board and roof in buildings, etc.
Rubber and plastic sponge thermal insulation material product guide: This product is a closed cell elastic material, with soft, flexible, cold resistant, heat resistant, flame retardant, waterproof, low thermal conductivity, shock absorption, sound absorption and other excellent properties. It can be widely used in all kinds of cold and hot medium pipes and containers of central air conditioning, construction, chemical industry, medicine, light textile, metallurgy, ships, vehicles, electrical appliances and other industries and departments to reduce the cold loss and heat loss. Because of its convenient construction, neat and beautiful appearance, and no pollution, it is a new generation of high quality thermal insulation material across the century.
Features of rubber and plastic insulation materials:
1. Low thermal conductivity: when the average temperature is 0 ¡æ, the thermal conductivity of this material is 0.034w/mk, and its surface heat release coefficient is high. Therefore, under the same external conditions, the thickness of this product is more than half thinner than other thermal insulation materials to achieve the same thermal insulation effect, thus saving space above the floor ceiling and saving investment.
2. Good flame retardancy: this material contains a large amount of flame retardant and smoke reducing materials. The smoke concentration generated during combustion is extremely low, and it will not melt in case of fire, and will not drop the ignited fireball. The material has the characteristics of self extinguishing. According to GB8624-1997 Grading Method for Burning Performance of Building Materials, this product is a Class B1 fire-resistant material, ensuring safety and reliability.
3. Easy installation and beautiful appearance: because this product is soft, it is easy to install. Pipe installation: it can be installed together after being sleeved, or the pipe can be cut longitudinally and then glued. For complex components such as valves, tees, elbows, etc., the plates can be cut and bonded according to different shapes to ensure the tightness of the whole system, thus ensuring the thermal insulation of the whole system. Because of the smoothness and smoothness of the rubber on the surface of this material and its excellent performance, there is no need to add additional vapor barrier and protective layer, which reduces the trouble in construction and ensures the beautiful and smooth appearance.
4. Anti vibration characteristics: rubber and plastic insulation materials have high elasticity, which can greatly reduce the vibration and resonance of chilled water and hot water pipes during use.
5. Other advantages: rubber and plastic thermal insulation materials are very safe to use, neither irritating the skin nor harming health. They can prevent the growth of mold, avoid the bite of pests or mice, and are acid resistant and alkali resistant, with superior performance. These properties make rubber and plastics an ideal insulation material for protecting pipes from corrosion due to atmospheric media or industrial environment. Phenolic foam products.
Use of rubber and plastic insulation materials:
Industrial and civil buildings: interior and exterior walls of high-rise buildings. And roof insulation layer, various pipe insulation, air conditioning duct insulation layer, fire door, core layer of wall, flammable warehouse, cold storage insulation, etc. Petroleum and chemical engineering: petrochemical transmission pipeline, thermal pipeline, cold and hot air duct insulation, chemical container insulation. Vehicles and ships: thermal insulation of passenger cars, refrigerated vehicles and special vehicles; Thermal insulation, heat preservation, sound insulation and fire protection of civil and military ships, hulls and cabins.
Household appliances: water tank, freezer, refrigerator, etc. Low bulk density closed cell foam glass thermal insulation product foam glass is made of glass powder as base material, added with additives and baked at high temperature in a tunnel kiln. It is thermal insulation material. It has the characteristics of light unit weight, small thermal conductivity, impermeability, small water absorption, non combustion, non mildew, high mechanical strength, convenient processing, chemical corrosion resistance (except hydrofluoric acid), non-toxic, stable performance, both cold insulation material and thermal insulation material, and can adapt to the range from deep cold to higher temperature. At the same time, its important value is not only that it will not deteriorate after years of use, but also plays a role in fire prevention and earthquake prevention.
It is not only safe and reliable, but also durable when used in low temperature and deep cold, underground engineering, flammable and explosive, humid and harsh chemical corrosion environments. It is known as the "non replaceable thermal insulation material", so it is widely used in the thermal insulation and cold insulation engineering of petroleum, chemical industry, underground engineering, shipbuilding, national defense and military industry.
Gavin Li
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