Phenolic foam board known as the "king of the insulation material" reputation, is a new generation of thermal insulation materials fire. Phenolic foam material is a rigid aluminum organic polymer foam products, foam thermosetting phenolic resin. It has a lightweight, fireproof and met the fire is not burning, smoke-free, non-toxic, non-drip, temperature Wai Kwong (-196 ~ + 200 ℃), does not shrink at low temperatures, no embrittlement characteristics. Since the phenolic foam obturator rate, the low thermal conductivity (may be less than 0.030w / mk), good insulation properties, and has a certain resistance to water and water vapor permeability, thermal insulation material is preferred, it is warm through refrigeration engineering ideal insulation material. Since phenol having a benzene ring structure, dimensional stability, rate of change of <1%. And the chemical composition and stability, anti-corrosion anti-aging, in particular the ability of the organic solution, acid, alkali corrosion. In the production process without Freon foaming agent foaming compliance with international environmental standards, and its molecular structure containing hydrogen, oxygen, carbon, when the pyrolysis gas spilled toxic, tasteless, the human body, are harmless to the environment, in line with the national environmental protection requirements. Therefore, phenolic composite panels are ideal super fire, thermal insulation, energy-efficient, environmentally friendly and beautiful green insulation material. At present, the rapid development in the countries of phenolic foam, has been widely used in construction, defense, trade, storage, energy and other fields. US construction industry with noise insulation foam, phenolic material accounted for 40%; Japan Association has been established to promote the popularity of the phenolic foam of this new material. Phenolic foam is the internationally recognized building ranks as the most promising of a new type of insulation material. Because this new material and generally rely on polymer resin obtained by adding flame retardant materials have different nature, it does not burn in the fire, does not melt, it will not emit toxic fumes, and a lightweight, non-toxic, non- corrosion, insulation, energy-saving, noise, low cost, etc., and without Freon foam, no environmental pollution, good processability, easy construction, its overall performance is all kinds of insulation materials can not match. Insulation technology common to hotels, apartments, hospitals and high-rise buildings and other senior central air conditioning system indicators: Apparent density kg / m3 40-60 Thermal conductivity w / mk ≤0.025 dimensional stability% ≤1.5 compressive strength Kpa ≥250 oxygen index % ≥30 Water absorption% ≤3.4 phenolic board advantages: 1, excellent fire performance: phenolic foam insulation board phenolic insulation board in a fire burn, burn up to A-level performance, maximum use temperature of 180 ℃ (allow instantaneous 250 ℃) , 100mm thick phenolic foam anti-flame capacity of up to 1 hour or more without being penetrated. With a knot under the direct effect of carbon flame, no drip, no curling, no melting phenomenon, the surface layer of the foam structure "graphite foam" layer after layer to effectively protect the flame burning. 2, excellent thermal insulation properties: phenolic foam insulation board low thermal conductivity (0.025W / m K, more than twice as polystyrene, polyurethane similar?), For the thermal insulation of fine materials; 3, anti-corrosion Aging: phenolic foam insulation board resistant to almost all inorganic acids, organic acids, organic solvents erosion. Long-term exposure to sunlight, no aging, which has good resistance to aging; 4, low density, light weight: phenolic foam insulation board density 100 kg / m3 or less, can reach about 50 kg / m3. Reduce the weight of the building, reducing the load of the building to reduce structural costs, and the construction is simple, fast and can improve work efficiency; 5, acoustic performance: phenolic foam insulation board has excellent sound absorption performance, open-celled foam structure more conducive to absorption; 6, environmental protection: the use of CFC-free phenolic foam insulation board technology, no fiber, consistent with national and international environmental requirements. Phenolic board Cons: refractory grade is B, up to A2 level, but increased construction costs. To increase its compressive strength, tensile strength, usually affixed to a layer of inorganic plate or mesh on both sides. Use temperature of -60 ℃ ~ 150 ℃, can not be used at high temperatures, in theory, as he will be resistant to high temperatures rambling mentioned here is absolutely high temperature does not exceed 200 ℃, 200 ℃ is not too hot, certainly more than the highly toxic smoke. Ray 7 long-term effects, organic matter can not be anti-aging, UV, phenolic insulation board will lose its function and shorten life.