Phenolic insulation board is a new type of organic polymer materials, known as the king of the insulation. Phenolic board only low thermal conductivity, good insulation properties, also has flame retardant, thermal stability, high light, low smoke, low toxicity, thermal, mechanical strength, noise, and strong resistance to chemical corrosion and many other advantages, phenolic board plastic raw materials rich, low price, and the production process is simple, it can be cast in situ foam, moldable, can also be machined, can be made of sheet metal, shell and all kinds of special products. It overcomes the traditional organic polymer foam insulation materials combustible, toxic smoke, heat distortion and other shortcomings, to retain the traditional lightweight foam insulation materials, construction and other convenient features. Due to its special structure itself determined by the characteristics: a phenol resin containing a large number of main chain aryl, high carbon residue of pyrolysis, rapid combustion of carbonized layer covers the burning surface of the composite, so that the flame is extinguished. These phenolic resin has excellent properties, it is used for exterior insulation and fire insulation materials offer the possibility. Phenolic board without adding any flame retardant, the oxygen index can be as high as 40, is a Class B1 flame retardant materials. High density inorganic filler phenolic oxygen index plastic plate up to 60 ~ 70, the combustion level can be a Class A, a phenolic resin molecular structure of the high proportion of carbon atoms, phenol molecules are good free radical absorbers, in the pyrolysis process, methylene bridge by broken radicals generated quickly absorbed phenol molecules, tissue reaction to proceed, the surface can be formed when the structure of the carbon foam meets fire "graphite foam" layer, effectively protect the foam structure within the layer, the material of a When the side of the ignition and combustion, the temperature on the other side will not rise too high, do not spread when the flame is removed, the fire goes out automatically. Because of the graphite layer, the surface of drip, no curling, no melting phenomenon, having no flame propagation characteristics, the maximum smoke density (SDR) combustion is not more than 5, a phenol molecule only hydrogen, carbon and oxygen molecules, in When the pyrolysis can produce hydrogen, carbon and oxygen product, in addition to a small amount of CO, there are no other toxic gases, so it is easy to fire when firefighters rescue. Phenolic board performance: (1) anti-anti-burn combustion properties of phenolic board performance includes two aspects, one is the ability to prevent the spread of flame, a flame that is locally produced insulation materials, non-proliferation and the flame will self-extinguish; the second is the material itself insulation performance, even in the material side of the ignition and combustion, the temperature on the other side will not rise too high and cause a fire to expand. And polystyrene foam, polyurethane foam, compared with two characteristics, drip phenomenon when one fire, and second, when the fire dense carbon layer formed on the surface, which prevents further burning foam. (2) the chemical stability of organic materials in the equipment and piping insulation construction and use, and sometimes certain solvents and chemical exposure, it requires a certain resistance to chemical solvents and other properties. Phenolic board chemical resistance, solvent resistance than other organic foam in the construction with any water-soluble glue, solvent-based glue and use a wide range of applications. (3) the thermal stability of phenolic plate with good thermal stability over a wide temperature range, their continuous use temperature range before contraction or cracking was 140-175 ℃, and there are subjected to continuous use of the irradiation temperature is not up to 180 ℃ reported. Phenolic foam boards incorporating inert filler components can significantly improve the thermal stability, such as 10% glass fiber phenolic insulation board 800 ℃ can withstand high temperature one hour without contraction or cracking. Phenolic insulation board unrestricted use at low temperatures. These properties are other organic foam can match. Phenolic board seven advantages: 1. excellent thermal insulation properties: Modified Phenolic foam is a thermoset plastics, cured into separate porous foam, a foam diameter of 50-80 microns, thermal conductivity (K value) between 0.019-0.035w / mk, (such as 65% according to the national building energy requirements, 4cm thick phenolic foam board insulation effect is equivalent to 10-12cm thick polystyrene plates). 2. Premium fire retardant properties: modified phenolic foam sheet at the torch flame does not burn (self-extinguishing), does not melt, retardant, no distortion, no dripping, no smoke, co discharge less, excluding other toxic substances, is a truly "safe" fireproof insulation material. 3. Good waterproof performance: The authoritative testing department detected absorption between 2-3%, and does not reduce the insulation effect due to water absorption, and other undesirable changes. The unique sound insulation and sound absorption properties: Phenolic board has its own unique sound insulation and sound absorption, the absorption coefficient a value better than other foam sheet. 5. Proven weathering performance: modified phenolic foam sheet in the range of -160 to 180 degrees Celsius, not aging deformation does not degenerate (allow space temperature reaches 250 degrees Celsius)... 6. Excellent chemical resistance and solvent resistance: phenolic board for a variety of acids, bases, solvents have a strong chemical resistance. 7. born with a lightweight yet strong performance: modified phenolic foam density itself has a light weight between 20-60kg / m3, and the density increases with increasing intensity.