SD2335
Blend Polyol for making rigid polyurethane foam used for container
Description
SD2335 formulated polyol is a kind of pouring polyurethane rigid foam system designed with the mixture of HCFC-141B and HFC-245FA system. It is specially used for the container. 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 strong adhesive force, less bubble of surface and uniform density distribution.
n The low thermal conductivity, low water absorption and good dimensional stability.
n The long service life, convenient and fast construction.
Applications
This product is suitable used for the discontinuous production of polyurethane container panel. It can widely used for production of thermal and cold insulation layer for the container.
Characteristics
① Basic Parameters
|
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
SD2335 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（SD2335） Component B |
100 lots |
|
Yantai Wanhua（PM-200) Component A |
110 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 |
1.1:1 |
|
Mixing Time /（s） |
8"00 |
|
Cream Time/（s） |
10"00-30"00 |
|
Gel Time/（s） |
80"00-180"00 |
|
Tack Free Time/（s） |
150"00-300"00 |
|
Free Rise Density/（kg/m3） |
24-28 |
③ Product performance
Under the condition of the specified process, we could do some change to the items according to the special requirement of the customer. Typical foam specification shows following:
|
Items |
Index |
|||
|
Core Density kg/m3 |
32±2 |
36±2 |
40±2 |
|
|
Thermal Conductivity w/m.k |
≤0.024 |
≤0.022 |
≤0.024 |
|
|
Dimensional Stability（﹢70～-30℃，48h）% |
≤4 |
≤3 |
||
|
Compressive Strength kPa |
≥150 |
≥150 |
≥160 |
|
|
Water Absorption Rate（v/v） |
≤4 |
|||
|
Combustion performance（Horizontal combustion） |
Average burning time s |
≤90 |
||
|
Average burning range mm |
≤50 |
|||
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 SD2335 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℃.
