Blend polyol system for refrigerator and freezer
Negotiable /Ton
Min.Order:10 Tons
Shanghai Dongda Polyurethane Co., Ltd.
Blend polyether polyol for refrigerator and freezer
Physical properties
Appearance | Light yellow transparent viscous liquid | |
OH | (mgKOH/g) | 360-400 |
Dynamic viscosity(25) | mPa.s | 2500-3500 |
Density(20) | g/ml | 1.04-1.08 |
Storage Temperature | 10--25 | |
Storage stability | month | 6 |
Recommended ratio
DJD-103A | 100 | |
cyclopentane/cyclopentane(65/35) | 12--14 | |
MDI | 136-142 |
Process and reaction characteristics
Handed mix | For high pressure machine | ||
Material Temperature | 20-25 | 20-25 | |
Mold Temperature | 35-40 | 35-40 | |
CT | s | 12--20 | 8--15 |
GT | s | 75-85 | 55-65 |
TFT | s | 100-130 | 70-100 |
Free Density | kg/m3 | 25-26 | 23-25 |
Foam Properties
Density Apparent | GB/T 6343 | ≥33kg/m3 |
Obturator rate | GB/T 10799 | ≥90% |
Initial thermal conductivity | GB/T 3399 | ≤22mW/(m.K) |
Compressive strength | GB/T 8813 | ≥150kPa |
Dimensional Stability 24 hours -20 | GB/T 8811 | ≤1.0% |
24 hours 100 | ≤1.5% |