Rigid Polyurethane Systems for Spray foam Insulation

Rigid Polyurethane Systems for Spray foam Insulation
Rigid Polyurethane Systems for Spray foam Insulation (DQT-501B)
Product Introduction
DQT-501B is high density 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 use the spray technology, such as cold storages, pot, large-scale pipelines, construction roofs and all types of abnormity thermal insulation projects.
Physical Properties
Appearance
Hydroxyl Value mgKOH/g
Dynamic Viscosity (25 °C) mpa.s
Gravity (20 °C ) g/ml
Storage Temperature °C
Storage Stability month
Light yellow to brown viscous liquid
310-380
100-200
1.12-1.20
10-25
6
Recommended Ratio

pbw
DQT-501B blend polyols
Isocyanate
100
100-105
Reactivity Characteristics
(The temperature of the system is 20°C,and the exact value varied depending on processing condition)
RT s
GT s
3-5
6-10
Foam Performances
Items
Test Method
Index
Spray Density
Closed-cell Rate
Initial Thermal Conductivity(15°C)
Compressive Strength
Adhesive Strength
Elongation at break
Dimensional Stability 24h -20°C
24h 70°C
Water Absorption
Oxygen Index
GB 6343
GB 10799
GB 3399
GB/T8813
GB/T16777
GB/T9641
GB/T8811

GB 8810
GB 8624
≥50kg/m3
≥90%
≤24mW/(m.K)
≥300kPa
≥120kPa
≥10%
≤1%
≤1.5%
≤3%
≥26