Polyurethane foam combined material for packaging 1)Material: polyurethane 2)Good resistance to impact
1.1 Commodity Systems: polyurethane foam packaging composite raw material
1.2 Model: SH-8003
1.3 Application:
We offer these polyurethane foams in two types. These are as follows:
Flexible Molded Foam Cushion Rigid Molded Foam CushionThese foam cushions are designed in a variety of shapes, sizes and weights as per the requirements of our clients.
1.4 Introduction:
Flexible polyurethane foam is another material commonly used in protective packaging applications. Polyurethane foams are characterized by an open cell construction and have a softer feel, especially in the lower density and firmness ranges. They are most often the material of choice for smaller, lighter, and more shock-sensitive products.
2.1 FigureComponent 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 ± 3 |
Viscosity at 25 ° C (mPa • s) | 400 ± 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 AComponent B | °C°C | 2525 |
Mix ratio A / B |
| 100/100 |
Creaming time | sec | 5 – 20 |
Gel time | sec | 30 – 80 |
Rise time | sec | 40 - 100 |
Removal from the mold | sec | 480 |
2.4 Foaming properties
Parameter | ME | Value | Testing method |
Overall density | kg/m3 | 11 ± 2 | GB6343 - 86 |
Core density | kg/m3 | 8 - 14 | GB6343 - 86 |
Open cell rate | % | ≤45 | ISO DIS4590 |
Compression hardness 40% | N | 300 | ISO2439 |
3.1 DurabilityThe stored in tightly closed original containers
Component A: three months from date of manufacture.
Component B: six months from date of manufacture3.2 PackagingTwo-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 StorageThe components A and B are kept in place at 15-25 ° C.
3.4 TransportThe components A and B are to encourage, by any, covered transport
Polyurethane foam Combined material for packaging
