| Customization: | Available |
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| Molecular Principal Chain: | Naphthenic Polymer |
| Color: | Brown |
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Blend Polyol DFR2 Series for Water Heater
Chemical Name:
polyol blend,system polyol or combined polyol
Simple introduction (product features)
1)excellent flowability
2)foam density distribute uniformity
3)low thermal conductivity
4)excellent low temperature dimensional stability
1.General description
Blend Polyol DFR2 Series 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 water heaters. Blowing is provided with CFC free.It is the mixture of polyol.
2.Technical Quality Conditions:
2.1 Physical characteristics
Item Unit Index
Appearance light yellow transparent liquid
Viscosity 25ºC,mPa.S 400±50
Hydroxy Value mgKOH/g 380-20
Specific gravity 25ºC 1.1±0.5
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 sec
2.3.1.2 Machine
Demould time:8 min
Component temperature: 22-25ºC
2.3.1.3 Recommended processing property
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Product Item |
DFR21 |
DFR22 |
|
|
Blowing agent |
type |
HCFC-141b |
WATER |
|
Free rise density |
Kg/m3 |
24-26 |
32~34 |
|
Remark |
|||
Note: ratio varied depends on processing system
2.4 Foam characteristics
|
ITEM |
PROPERTY |
||
|
Apparent core density (kg/m3) ≥ |
30-40 |
||
|
Initial Thermal conductivity (W/m.k) ≤ |
0.024 |
||
|
Compressive strength ≥ |
130 |
||
|
Closed-cell rate (%) ≥ |
90 |
||
|
water absorption (V/V) % ≤ |
5 |
||
|
Dimensional stability(%) |
Low temperature (-30±3ºC,24hs) |
≤ |
1 |
|
High temperature (100±3ºC,48hs) |
≤ |
1.5 |
|
|
Moisture vapour transmission 38ºC,RHO-88% |
Ng/Pa.m.s |
≤ |
6.5 or by negotion |
3. Main Applications:
rigid PU foam cores for insulation of water heaters in combination with isocyanate (MDI).
4.Packing and storage:
The product is delivered in 200 liters clean, dry and tightly sealed metal sheet drums, cubitanks,stainless steel railway labeled with the product's name, batch number, manufacturing date, net weight, producer's name.The product is stored in genuine packing, in covered areas, cold, dry, vented areas, in tightly closed containers under nitrogen blanket, far from heat, moisture and inconsistent materials, at temperatures between 20ºC and 25ºC.The recommended shelf life is 6 months.
5.Safety Considerations:
Before handling and using of product, the personnel must be aware of the dangers implied. This information is on the product label.
6.Attention:
Please contact DAFFODIL to see if the document has been revised and for any other additional information related to the product.
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