DBC-402B
Product Introduction
DBC-402B blend polyols is a compound which consists of polyether polyols, foam stabilizer, catalyst, foaming agent and flame retardant etc. in a special ratio. The foam has good thermal insulation property, light in weight, high compression strength and flame retardance and other advantages. It is widely used to produce sandwich plates, corrugated plates etc, which applies to make cold stores, cabinets, portable shelters and so on.
Physical Property
|
Appearance
Hydroxyl value mgKOH/g
Dynamic viscosity （25℃） mPa.S
Density （20℃） g/ml
Storage temperature ℃
Storage stability month |
Light yellow transparent viscous liquid
320-400
250-350
1.10-1.16
10-25
6 |
Recommended Ratio
|
Raw materials |
pbw |
|
DBC-402B blend polyols
Isocyanate |
100
100-105 |
Technology and Reactivity（(the exact value varies depending on processing conditions）
|
items |
Manual mixing |
High temperature machine |
|
Raw material temperature ℃
Moulding temperature ℃
Cream time s
Gel time s
Free density kg/m3 |
20-25
35-45
30-50
120-200
23-26 |
20-25
35-45
20-30
70-150
23-26 |
Foam Performance
|
Moulding density
Closed-cell rate
Thermal conductivity（15℃）
Compression strength（perpendicular to the direction of rising）
Dimensional stability
24h -20℃
24h 100℃
Flame retardance |
GB 6343
GB 10799
GB 3399
GB/T 8813
GB/T 8811
GB/T8624 |
≥38kg/m3
≥90%
≤22mW/(m.K)
≥140kPa
≤1%
≤1.5%
Level B2 |
The data provided above are typical value, which are tested by our company. For our company's products, the data included in the law do not have any constraints.
