Rigid polyurethane polyether polyol foam system for continuous panels

Appearance                

OH value                    mgKOH/g

Dynamic viscosity  (25°C)   mPa.S

Density     (20°C)         g/ml

Storage temperature                °C

Storage stability               month

Linght yellow to brown transparent liquid

200-280

250-300

1.11-1.15

10-25

6

Raw materials

pbw

DBC-402C Blended Polyols

Isocyanate

100

150-160

Items

Manual mixing in Lab Test

Raw material temperature     °C

Cream time    s

Gel time      s

Free density  kg/m3

22

10-15

15-25

                 34-38

Moulding density

Closed-cell rate

Thermal conductivity (15°C)

Compression strength(perpendicular to the direction of rising)

Dimensional stability  24h  -30°C

      24h  100°C

Flame retardant grade

Water absorption ratio 

GB 6343

GB 10799

GB 3399

GB/T8813

        GB/T8811

        GB/T8624 

        GB 8810

   ≥45kg/m3

≥90%

       ≤25mW/(m.K)

≥200kPa

          ≤0.5%

≤0.5%

          Class B2

≤3%