| Customization: | Available |
|---|---|
| Molecular Principal Chain: | Naphthenic Polymer |
| Color: | Brown |
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DFR7C Series is a formulated polyol consisting of,surfactants,catalysts,fire retardant and CFC free blowing agent.The polyol offers increased resistance to burning and spread of flames.The polyol blend is specifically developed as one part of a two components system for rigid polyurethane insulated pannel with continuous process.
It is widely used in manufacture of composite board,sandwich panel,inorganic panel applied for door,wall,roofing,air condition duct and so on.
Panels manufactured with DFR7C Series will display higher degree of compression and tensile strength in addition to its thermal and Eco-Efficiency performance.The higher percentage of closed cell is considered excellent barrier for air,water and noise.
PHYSICAL and CHEMICAL PROPERTIES
|
POLYOL |
ISOCYANATE |
Test Method |
|
|
Apperance |
Clear amber liquid |
Dark brown viscous liquid |
|
|
Viscosity@20ºC |
500-800cps |
170-230cps |
ASTM D 445 |
|
Specific gravity@20ºC |
1.11±0.01gm/cc |
1.23±0.01gm/cc |
ASTM D 891 |
|
OH content |
370 mgKOH/g |
ASTM 4274 |
|
|
NCO |
30-32% |
ASTM D 5155 |
RECOMMENDED PROCESS CONDITIONS
System temperature:20±3ºC
Compoment temperature:23±2ºC
Mould temperature:40±3ºC
TYPICAL REACTION PROPERTIES
|
Product Item |
DFR71F21 |
DFR71F23 |
DFR72F24 |
DFR71P26 |
|||||
|
Manual |
Machine |
Manual |
Machine |
Manual |
Machine |
Manual |
Machine |
||
|
Blowing agent |
type |
HCFC-141b |
HCFC-141b |
Cyclopentane |
HCFC-141b |
||||
|
Free rise density |
Kg/m3 |
35 |
35 |
35 |
36 |
35 |
36 |
36 |
38 |
|
Moulded density |
Kg/m3 |
/ |
42 |
/ |
43 |
/ |
45 |
/ |
47 |
|
Fireproof |
grade |
B3 |
B2 |
B2 |
B1(PIR) |
||||
FORM PERFORMANCE
|
Testing items |
Test method |
Index |
|
|
Chinese standard |
Referance Standard |
||
|
Closed-cell rate (%) ≥ |
GB/T10799-2008 |
ISO 4590:2002 |
90 |
|
Initial Thermal conductivity (W/m.k) ≤ |
GB/T 10295-1988 |
ISO 8301:1991(E) |
0.023 |
|
Compressive strength ≥ |
GB/T 8813-2008 |
ISO 844:1978 |
130 |
|
Dimensional stability (%) |
GB/T 8811-2008 |
ISO 2796:1980 |
2 |
|
48h 70°C ≤ |
|||
|
48h -30°C ≤ |
1.5 |
||
HANDLING and STORAGE
Blend Polyol DFR7C Series and PU systems should be stored at room temperature below 25ºC in sealed drums.Agitate contents before use particularly after long standing.Precautions should be observed to avoid prolonged or repeated skin contact with the products or its introduction in or near to the eyes.If skin contact occurs all contaminated clothing should be removed and the effected skin area wiped with a cloth or paper towels saturated with ethanol or equivalent solvent followed by washing with soap and water.Goggle or eye shields should be worn when there is a danger of splashing or eye contact.With the exercise of such care DFR7C Series should not present any undue hazard to health under normal working conditions(Protective clothing and eye protection is recommended when handling Polyol).
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