Main Products: Polyurethane ,Rigid Foam System ,Blend Polyol
Polyurethane resin for PIR panel
Negotiable /Ton
Min.Order:10 Tons
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Shanghai Dongda Polyurethane Co., Ltd.
Business Type: Manufacturer,Trading Company
Shanghai ChinaMain Products: Polyurethane ,Rigid Foam System ,Blend PolyolProduct Details
Blend polyether polyol for PIR panel
Physical properties
| Appearance | Light yellow to brown yellow transparent liquid | |
| OH | (mgKOH/g) | 200--280 |
| Dynamic viscosity(25) | mPa.s | 150--250 |
| Density(20) | g/ml | 1.12--1.16 |
| Storage Temperature | 10--25 | |
| Storage stability | month | 6 |
Recommended ratio
| QBC-402C | 100 | |
| MDI | 150-160 |
Process and reaction characteristics
| Handed mix | For high pressure machine | ||
| Material Temperature | 25 | 25 | |
| Mold Temperature | 50-60 | 50-60 | |
| CT | s | 15--30 | 15--25 |
| GT | s | 50-120 | 50-110 |
| Free Density | kg/m3 | 30-32 | 30-32 |
Foam Properties
| Density Apparent | GB/T 6343 | ≥45kg/m3 |
| Obturator rate | GB/T 10799 | ≥90% |
| Initial thermal conductivity | GB/T 3399 | ≤25mW/(m.K) |
| Compressive strength | GB/T 8813 | ≥200kPa |
| Dimensional Stability 24 hours -20 | GB/T 8811 | ≤0.5% |
| 24 hours 100 | ≤0.5% | |
| Flammability | GB/T8624 | B2 |
| Smoke Density | SDR | ≤75% |
| water absorption rate | GB 8810 | ≤3% |
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