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Qingdao sunrise international trade co., ltd.
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PU Products and Technology
New polyurethane material technologies include hard foam, soft foam, semi-hard foam, high resilience foam, adhesive, elastomer, etc.
The pre-polymer series be divided into the following systems based on synthetic process
Raw Material Type |
English Abbreviation |
TDI |
MDI |
NDI |
PPDI |
IPDI |
Ester Polyalcohol |
PE |
√ |
√ |
√ |
√ |
√ |
PCL |
√ |
√ |
√ |
√ |
√ |
|
PCD |
√ |
- |
- |
- |
√ |
|
Ether polyalcohol |
PPG |
√ |
√ |
- |
- |
√ |
PTMEG |
√ |
√ |
√ |
√ |
√ |
|
Polyolefin Polyalcohol |
HTPB |
√ |
√ |
- |
- |
- |
Chain Extender |
-NH |
-NH |
-NH |
-NH |
-NH |
Production Process |
Processing Temperature Range |
Single-component Pre-polymer |
2-component Mixed material |
3-component Mixed material |
Heating Process |
70～120℃ |
√ |
√ |
√ |
Mid-temperature Processing |
40～70℃ |
- |
√ |
√ |
Normal-temperature Processing |
20～40℃ |
- |
√ |
- |
