Simple introduction (product features)
1)Good liquidity
2)Low thermal conductivity
3)Rapid demoulding
4)The pore in the core of the foam is very less.
1.General description
Blend Polyol ZHD-8001IC is is a premixed polyols designed for the production of polyurethane rigid foams for refrigerators,icebox, steaming carbinet and other thermal insulation products. It is ready system contains polyether polyol, silicone surfactant, catalysts,blowing agent and water etc..and foam with with good flowability and density distribution.
2.Technical Quality Conditions:
2.1 Physical characteristics(with hcfc-141b)
Item Unit Index
Appearance light yellow transparent liquid
Viscosity 25ºC,mPa.S 300-600
Specific gravity 25ºC 1.00-1.10
2.2 Process and reactive characteristics( actual value varied depends on the processing conditions)
2.3.1 Foaming condition
2.3.1.1 Manual mixing
Component temperature:20-23ºC
Mixing speed:5000rpm/8 secs
2.4 Recommended ratio:
| Component | Parts by weight |
| Blend polyol | 100 |
| Isocyanate | adjustable |
| HCFC-141b(or CFC-11) | adjustable |
2.5 Foam characteristics
| ITEM | Result | Test Method | ||
| Apparent core density (kg/m3) ≥ | 28-35 | ISO 845:2006 | ||
| Initial Thermal conductivity (W/m.k) ≤ | 0.022 | ISO 8301:1991(E) | ||
| Compressive strength ≥ | 100 | ISO 844:1978 | ||
| Closed-cell rate (%) ≥ | 90 | ISO 4590:2002 | ||
| water absorption (V/V) % ≤ | 5 | ISO 2896:2001 | ||
| Dimensional stability(%) | Low temperature (-20ºC,24hs) | ≤ | 1 | ISO 2796:1980 |
| High temperature (100ºC,24hs) | ≤ | 1.5 | ||
Above Data is for reference only.Actual values vary depending on processing conditions and species.
3. Preparation:
Before using,this polyol has to be mixed very well..
prevent the ingress of moisture.
The Polyol blend has a shelf life of three months from date of manufacture when stored indoors
at temperatures of 20-30°C. The Polyol blend should be thoroughly mixed before use.
ZHD-8001IC-B (Isocyanate)
The Isocyanate has a shelf life of one year from date of manufacture when stored indoors at
temperatures of 20-30°C. Avoid storage temperatures of below 0°C (as some crystallization
may occur) or above 50°C (as formation of insoluble so lids may occur).
5.SAFTY PRECAUTIONS
