Description
SD2402 formulated polyol is a kind of pouring polyurethane rigid foam system designed with the HCFC-141B system. It is specially used for the refrigerator. It contains all the raw materials and auxiliaries necessary for the production of rigid polyurethane foam including the blowing agent. It has the characteristics as following:
n The destiny is uniform distribution. It has strong bonding force with other substrates.
n The light weight, high strength and good dimensional stability
n The low thermal conductivity and good low temperature resistance
Applications
This product is suitable used for polyurethane thermal insulation for refrigerator and freezer.
Characteristics
① Basic Parameter
|
Characteristics |
Index |
Unit |
Testing method |
|
Density(25°C) |
1.10±0.10 |
g/cm3 |
GB/T6343-2009 |
|
Viscosity(25°C) |
100-300 |
mPa.s |
GB/T12008.7-2010 |
② Reaction Time Parameter and Product Properties
SD2402 type component polyether system will need use foaming machine, here with the laboratory index for reference, while the actual value will be different depending on the construction conditions. Testing formula:
|
Yantai Shunda（SD2402） Component B |
100 lots |
|
Yantai Wanhua（PM-200) Component A |
100 lots |
Reaction index（Laboratory free foaming, mixing speed 3500r/min）
|
Environment temperature（℃） |
25±1 |
|
Component A temperature（℃） |
25±1 |
|
Component B temperature（℃） |
25±1 |
|
Mix Ratio/（A:B）in Weight |
1:1 |
|
Mixing Time /（s） |
8"00 |
|
Cream Time/（s） |
10"00-15"00 |
|
Gel Time/（s） |
40"00-60"00 |
|
Tack Free Time/（s） |
70"00-120"00 |
|
Free Rise Density/（kg/m3） |
23-26 |
③ Product performance
Under the condition of the specified process, typical foam specification shows following:
|
Items |
Index data |
|
Core Density kg/m3 |
32-36 |
|
Compressive Strength kPa |
≥140 |
|
Dimensional Stability（-30℃，24h，%） |
≤1.0 |
|
10℃ Thermal Conductivity (mW/m.k) |
≤18.5 |
Remark: Above data is obtained by the lab testing, actual data at customer side may be different because of test machine and condition, etc. And all the data listed of our products will have no any legal force.
Packaging：
The material is normally supplied in iron pail with Zinc coating in standard container, 220kgs/drum.
Storage Recommendations：
The SD2402 is hygroscopic and containers must be kept sealed tightly to prevent absorption of moisture, which can adversely affect processing. During the transportation, it should avoid serious shake and strong sunlight. It should be stored in ventilated place, avoiding light, water and fire. Recommended storage temperature is 10～25℃.
