Phenolic combustion performance and the application of external wall insulation board
phenolic wall thermal insulation board in relatively wide temperature range with good thermal stability, its continuous use temperature range is 140 ~ 175 ℃ before the shrinkage or cracking. When the discontinuity using irradiation temperature can be as high as 180 ℃. Adding fillers can improve the thermal stability of phenolic foam. Phenolic foam containing 10% glass fiber, for example, can withstand the 800 ℃, keep 1 hour no shrinkage or cracking. The use of phenolic foam at low temperature is not restricted. These features is beyond the scope of other organic foam.
the survival of humans for a variety of buildings, safety problems always listed in the first place. Phenolic plate is a new kind of non-combustible low smoke, fire insulation materials, it is made of phenolic resin in foaming agent, curing agent and other additives made of closed-cell rigid foam. It is the most prominent feature of non-combustible, low smoke, resistance to high temperature of different change. It overcomes the original type foam thermal insulation material inflammable, cigarettes, drawback of the metabolic that encounter heat, retained the original type foam thermal insulation material is qualitative light, construction is convenient wait for a characteristic. Traditional phenolic board not only can be used for exterior insulation system, can be also prepared to act the role of surface composite insulation decoration plate, can also be used to build the traditional EPS/XPS exterior wall thermal insulation system fire belt/PU, will be used for fire prevention in the curtain wall thermal insulation materials, fire door insulation materials, as well as low or high temperature of fire insulation material. Phenolic foam is a kind of excellent fireproof, heat insulation, sound insulation, light and energy saving products, phenolic insulation board the outer walls of the plastic with these characteristics, making it the most ideal new organic heat preservation material, very suitable for as exterior wall insulation, roof insulation, lining used in building materials such as fire prevention. Phenolic foam was used as insulation materials, can satisfy the requirement of insulation and refractory.
II and chemical stability of organic materials in the insulation of the equipment and pipeline construction and use, sometimes with some solvents and chemicals contact, therefore needs certain chemical solvent resistance. Traditional phenolic board not only can be used for exterior insulation system, can be also prepared to act the role of surface composite insulation decoration plate, can also be used to build the traditional EPS/XPS exterior wall thermal insulation system fire belt/PU, will be used for fire prevention in the curtain wall thermal insulation materials, fire door insulation materials, as well as low or high temperature of fire insulation material. Phenolic foam in chemical resistance and solvent resistance is better than that of other organic foam. Can be used with any water-soluble rubber and solvent rubber, has wide application prospect. Third, phenolic wall thermal insulation plate burning resistance mainly includes two aspects: one is the ability to prevent the spread of flame, the local produce flame insulation materials, and spontaneous combustion flame will not spread; The second is adiabatic performance of material itself. Even if materials in combustion, on the other side of the temperature will not rise, lead to the fire. Compared with polystyrene foamed plastic and polyurethane foam, has two characteristics, one is in the process of ignition without dripping, 2 it is formed a dense carbon layer in the surface of the fire, hampered the further combustion of the bubble. French construction science and technology center of phenolic foam made a thorough test, prove that it has good flame retardant performance, such as in the torch under the temperature of 3000 ℃, flame to foam board, two minutes later, the back plate without apparent thermal, no high temperature pyrolysis and smoke.