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Classification of phenolic insulation board _ phenolic insulation board, phenolic board manufacturer

by:Ventech     2021-01-15
Because of the heat preservation material in China caused by fire and anesthesia, and the frequency and loss of property. Across the insulation market, thermal insulation material mainly has the widespread use of polystyrene board, phenolic insulation board, polyurethane foam, etc. The biggest problems of the thermal insulation material, it is fire prevention performance is poor, even the welding of Mars, also can make the heat preservation material on fire.

1, the defect of polyurethane (pu) : meet fire burns easily, is easy to produce poison, harm human health;

2, the defects of polystyrene: meet the fire burning, with long will shrink, heat preservation performance is poor;

3, rock wool, glass wool defects: bad for the environment, the breeding ground for bacteria, bibulous rate is high, poor heat insulation effect, strength is poor, short service life;

4, phenolic advantages: non-combustible, no gas and smoke after burning, low thermal conductivity thermal insulation effect is good, sound insulation, weather is good, life can be up to 30 years;

5, have closed pore structure are uniform, low thermal conductivity, good thermal insulation performance, polyurethane and its better than polystyrene foam;

6, suitable temperature range is big, can be in - in the short term With under 200 ℃ ~ 200 ℃, and can use for a long time under the 140 ℃ ~ 160 ℃, is better than that of polystyrene foam ( 80℃) And polyurethane foam ( 110℃) ;

7, phenol molecules contain only carbon, hydrogen, oxygen, by pyrolysis, in addition to produce a small amount of CO gas, won't produce other toxic gases, the most great smoky density of 5. 0%. 25 mm thick phenolic foam board after 1500 ℃ flame spray after 10 min, only slightly carbonization is don't wear surface, neither fire nor send out smoke and poisonous gas;

8, phenolic foam, except may be strong alkali corrosion resistance can almost all inorganic acid, organic acid, organic solvent. Long-term exposure to sunlight, no obvious aging phenomenon, thus has good aging resistance;

9, phenolic insulation board cost is low, only about two-thirds of the polyurethane foam.

the heat preservation material is burned, melting drop and large amounts of toxic smoke, not only caused huge environmental pollution, to fire rescue work inconvenient, and endanger the life safety of the residents and firefighters. For this, on September 25, 2009, the Ministry of Public Security, housing and urban-rural development jointly established the civil building external thermal insulation system and the interim provisions on the exterior wall decorative fireproof, this provision: civil building height is greater than or equal to 100 m, other civil construction is greater than or equal to 50 meters, building curtain wall type is higher than 24 meters, the combustion performance of insulation materials should be A level; Less than the height, should set up the fire belt. http://www。 fenqbwb。 com/
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