Rigid polyurethane foam

SpecificationsRigid polyurethane foam
1)Used for Cold storage of making
2)Material: polyurethane
3)Good insulation

1.1
Commodity Systems:
polyurethane foam composite raw material for cold-specific boards.

1.2 Model:
SH-8005

1.3 Application:
SH-8005 polyurethane foam composite raw material is principally used for manufacturer cold-specific boards.

1.4 Introduction:
Standard cold rooms are assembled by numerous modular panels, which meet the requirements of different application temperature and dimension. Polyurethane cold-specific boards have many advantages, such as high-quality, small size and good insulation properties.




2.1 Figure
Component A: in the room temperature is a white liquid
Component B: in the room temperature is a dark liquid.
After the merger it will be transparent, slightly opalescent liquid.

2.2 Physical-chemical properties
Component A
Component B
Parameter
Value
Parameter
Value
Hydroxyl Value(Mg • HOK/g)
450± 50
Content of NCO groups (%)
30 -33
Viscosity at 25 ° C (mPa • s)
500 ± 100
Viscosity at 25 ° C (mPa • s)
200 ± 40
Specific Gravity at 25° C (g/cm3)
1.210 ± 0.05
Specific Gravity at 25° C (g/cm3)
1.235 ± 0.02

2.3 Technological features of the systems

Unit
Value
Processing temperature:
Component A
Component B
°C
°C
25
25
Mix ratio A / B

100/(100– 110)
Creaming time
sec
20 – 40
Gel time
sec
90 – 160
Rise time
sec
120 – 200
Removal from the mold
sec
300 - 900

2.4 Foaming properties
Parameter
ME
Value
Testing method
Free density (product)
kg/m3
22 - 25
GB6343 - 86
Overall density
kg/m3
38 - 45
GB6343 - 86
Coefficient of thermal conductivity(20.C)
W/m.K
≤0.025
GB10294 - 88
Compression strength
Mpa
≥0.15
GB8813 - 88
Obturator rate
%
≥92
ISO DIS4590
dimensional stability (-30.C - 100.C/96h)

≤1.5
GB8811 – 88
Water absorption rate
%
≤3
GB8810 – 88


3.1 Durability
The stored in tightly closed original containers
Component A: three months from date of manufacture.
Component B: six months from date of manufacture
3.2 Packaging
Two-component polyurethane system comes in single-use packaging.
The components A and B are kept in tight containers of 250kg steel drums (individually wrapped)., or in other containers with customers agreed.
The following information will appear on the packaging:
- Product name or mark,
- Date of manufacture,
- Number of the lot
- Net Weight
- Guarantee

3.3 Storage
The components A and B are kept in place at 15-25 ° C.
3.4 Transport
The components A and B are to encourage, by any, covered transport