пена для изоляции жесткой foamsystem

rigid foamsystemDQT-501A Application blend polyol DQT501A is spray blend polyols, it reacts with isocyanate to produce foam which has excellent performances, which are as follows, 1) fine and uniformity cells 2) low thermal conductivity 3) perfect flame resistance 4) good low temperature dimentional stability. It applies to all kinds of thermal insulation engineering which usesthe spray technology, such as cold rooms, pots, large-scale pipelines and construction metope etc. Physical propertiesAppearanceLight yellow to brown yellow transparent liquidOH(mgKOH/g)310-380Dynamic viscosity(25°C)mPa.s100-200Density(20°C)g/ml1.12-1.20Storage Temperature°C10--25Storage stabilitymonth6Recommended ratioDQT-501A100MDI115±5Process and reaction characteristicsDiscontinuous methodRise Times3--5GTs6--10Foam PropertiesSpray densityGB 6343≥35kg/m3Obturator rateGB10799≥90%The initial thermal conductivityGB 3399≤24mW/(m.K)Compressive strengthGB/T8813≥150kPaBond strengthGB/T16777≥120kPaElongationGB/T9641≥10%Dimensional Stability 24 hours -20°CGB/T8811≤1% 24hours 70°C≤1.5%AbsorptionGB 8810≤3%Oxygen IndexGB 8624≥26