Chemical Name:
Blend polyols or combination polyether polyol
Simple introduction (product features)
1)good flowability
2)foam density distribute uniformity
3)low thermal conductivity
4)excellent low temperature dimensional stability
1.General description
ZHD-8001RFI is a semi resin premix combined polyol, based on polyether polyol, formulated with catalyst,blowing agent,stabilizing agents and other additves(if necessary) according to a parameter.It is a fully formulated polyether polyol developed for the rigid insulation of refrigerators and freezers. Blowing is provided with C-pentane.It is the mixture of polyol.
2.Technical Quality Conditions:
2.1 Physical characteristics(without c-pentane)
Item Unit Index
Appearance light yellow transparent liquid
Viscosity 25ºC,mPa.S 3500-4500
Hydroxy Value mgKOH/g 350-450
Specific gravity 25ºC 1.05-1.10
2.2 Physical characteristics(with c-pentane)
Item Unit Index
Appearance light yellow transparent liquid
Viscosity 25ºC,mPa.S 700-900
Specific gravity 25ºC 1.05-1.10
2.3 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:20-25ºC
Mixing speed:5000rpm/8 sec
2.3.1.2 Machine
Mold temperature:35-40ºC
Component temperature: 20-25ºC
2.4 Recommended ratio:
| Component |
Part by weight |
Remark |
| Blend polyol |
100 |
|
| C-pentane |
12-13 |
|
| Isocynate |
134.4-135.6 |
P/M=100/120 |
2.5 Foam characteristics
| ITEM |
PROPERTY |
| Density(kg/m3) |
Core |
>=35 |
| Thermal Conductivity (10ºC) W/m.k |
|
≤0.022 |
| Closed cell rate (%) |
|
>=90 |
| Compressive strength(10%),kpa |
|
150 |
| Dimensional stability(%) |
Low temperature
(-30ºC,24hs) |
1.0 |
High temperature
(70ºC,relative humidity95%±5%,24hs) |
1.5 |
Above Data is for reference only.Actual values vary depending on processing conditions and species.
3. Main Applications:
rigid PU foam cores for insulation of refrigerators and freezers in combination with isocyanate (MDI).
4. Preparation:
Before using,this polyol has to be mixed very well..
The materials are sensitive to humidity and partially used drums should be tightly sealed to
prevent the ingress of moisture.
6.ZHD-8001RFI-A (Polyol Blend)
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-8001RFI-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).
7.SAFTY PRECAUTIONS
Direct contact with ZHD-8001RFI can lead to moderate eye irritation and mild skin irritation, which can cause skin allergies. Repeated inhalation of high concentration of volatile gas will cause respiratory allergy, and should be treated immediately. Anti- inflammatory and anti-allergic treatment measures should be taken. Please be careful in the operation to prevent contact with the skin and splash into the eye, please wear the necessary protective equipment (gloves, protective goggles, working clothes, etc.). Once splashed on the skin or the eye, rinse with water immediately for at least 15 minutes, and the skin is washed with soapy water. Please seek medical treatment immediately after swallowed. Notice: This product specification is intended to be used by Shunda Polyurethane Company in order to show sincerity to our customers, while it is not covered by law as a guarantee. Customers can adjust according to the actual operating conditions. If you have any questions, please call our company and we will serve you wholeheartedly.
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