Polyurethane foam Combined material for packaging

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 Cushion
These 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 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 ± 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 A
Component B
°C
°C
25
25
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 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