Phenolic insulation board heat transfer analysis
the three ways of heat transfer and the overall fire prevention structure of external thermal insulation system has certain inherent correspondence:
coating: coating and finishing layer. Protective layer thickness and quality stability is mainly pulp, this determines the fire performance of the system. The existence of fire protection layer can effectively reduce the heat conduction, reduce the flame propagation, to improve the fire resistance of the system. :
flame separation system fire insulation structure or the existence of silo structure can effectively prevent spread of flame. 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. Fire isolation layer including building fire zone, doors and Windows open fire prevention structure, the structure of the system itself. As fire prevention and fire prevention beam thermal insulation material, its under fire conditions has good flame retarding and heat transfer capability, under the condition of high temperature flame still has good dimensional stability. Can effectively prevent heat convection and thermal radiation.
the cavity structure: the existence of the cavity structure for insulating material of combustion and flame spread in the system provides the oxygen. Cavity structure of external thermal insulation system of fire safety performance of the system has a great influence. Especially pointed out that under the condition of fire, as a result of insulation board in fire shrinkage, melting or burning, after will lead to the formation of the cavity or the closing of the cavity, but with a cavity system will improve the speed of flame propagation. Its fireproof performance have a negative impact on the system. Insulation board, therefore, have no deformation under the condition of fire is very important.
one of the biggest advantages is the combustion difficulties, size of high temperature stability, no contraction, no dissolved and drop, flame penetration resistance is strong.
this is a small make up an introduction to prevent phenolic insulation plate heat transfer process in detail. 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. Phenolic insulation board or phenolic insulation board production equipment, has been widely used. My company after years of production experience, will bring you the best products!