Donfoam 813 CP/IP base blend polyols for block foam

Donfoam 813 CP/IP base blend polyols for block foam

INTRODUCTION Donfoam813 blend polyols use CP or CP/IP as blowing agent ,used in the production of high flame retardant PIR block foam, with performances of uniform foam cell , low thermal conductivity, good thermal insulation and  flame retardant, low temperature no shrinking crack etc. Widely used in the process of all kinds of insulation work such as: building external wall, cold storage, tanks, large pipes etc.

PHYSICAL PROPERTY

AppearanceDynamic viscosity （25℃）      mPa.S Density （20℃）              g/ml Storage temperature              ℃ Storage stability                 month

Light yellow to brown transparent liquid 500±100 1.20±0.1 10-25 6

RECOMMENDED RATIO

Items	PBW
Blend PolyolsCP or CP/IP Isocyanate	100 11-13 140-150

TECHNOLOGY AND REACTIVITY (the exact value varies depending on processing conditions)

	Manual Mixing
Raw Material Temperature   ℃Mold Temperature        ℃ CT                       s GT                       s TFT                      s Free Density            kg/m3	20-25 Ambient Temperature (15-45℃ ) 35-60 140-200 240-360 28-35

FOAM PERFORMANCES

Item	Test Standard	Specification
Overall Molding DensityMolding Core Density	ASTM D1622	≥50kg/m3 ≥40kg/m
Closed-cell Rate	ASTM D2856	≥90%
Initial Thermal Conductivity（15℃）	ASTM C518	≤24mW/(m.K)
Compressive Strength	ASTM D1621	≥150kPa
Dimensional Stability                 24h      -20℃ RH90     70℃	ASTM D2126	≤1% ≤1.5%
Water Absorption Rate	ASTM D2842	≤3%