semi-rigid polyurethane foam

Semi-rigid polyurethane foam
1)Low price
2)Material: polyurethane
2)Good adhesive nature
3)Good liquidity
1.1 Commodity Systems:
semi-rigid polyurethane foam composite raw material

1.2 Model:
SH-8002

1.3 Application:
Used for interior materials of automobiles such as instrument panels, coating of windscreen pillars, glove compartment door and floor housing.

1.4 Introduction:
A semi-rigid polyurethane foam having a strength retention of not less than 70% when allowing it to stand at 120° C. for 24 hours, and a Haze value of not more than 2 as determined by Fogging test, prepared by mixing a polyol mixture comprising a polyol, water and a catalyst with a polyisocyanate, and foaming the resulting mixture, and a process for preparing the same. The semi-rigid polyurethane foam would not cause fogging under high-temperature conditions, and can be suitably.



2.1 Figure
Component A: in the room temperature is a white liquid after the merger it is a colorless liquid.
Component B: in the room temperature is a dark liquid, and 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)
135± 50
Content of NCO groups (%)
30 – 33
Viscosity at 25 ° C (mPa • s)
600 ± 100
Viscosity at 25 ° C (mPa • s)
200 - 40
Specific gravity at 25° C (g/cm3)
1.105 ± 0.02
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/(45 – 55)
Creaming time
sec
15 - 25
Gel time
sec
15 - 95
Rise time
sec
110 - 160
Removal from the mold
sec
480

2.4 Foaming properties
Parameter
ME
Value
Testing method
Free density
kg/m3
70 - 150
GB6343 - 86
Tearing strength
Mpa
350
DIN53504
Craned degrees
%
50 – 60
DIN53504
Compression deformation 50%
%
10 - 30
DIN53571



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 drums should be filled to more than 90%.
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