| About |
|---|
| Pearlbond™ 521 is a linear, polycaprolactone-copolyester polyurethane, supplied in form of white spherical granules with a very high crystallization rate and a very high thermoplasticity level. APPLICATIONS Pearlbond™ 521 can be added to formulations of REACTIVE POLYURETHANE HOT-MELTS (HMPUR), in order to improve the crystallisation speed.&& |
| Product Description | |
|---|---|
| Supplier | Lubrizol Advanced Materials |
| Generic | TPU-Capro |
| Material Status | Commercial: Active |
| Features | Linear polymer structure |
| Availabilitys | North America,Europe |
| Technical Data | |||
|---|---|---|---|
| THERMAL | Nominal value | Unit | Test method |
| Melting temperature | 63.0 to 67.0 | ℃ | Internal Method |
| Supplementary information | Nominal value | Unit | Test method |
|---|---|---|---|
| Crystallization rate | 9.0 to 11.0 | min | Internal Method |
| OH Value | < 3.00 | mg KOH/g | Internal Method |
| Thermoplasticity | Very High | Internal Method |
| PHYSICAL | Nominal value | Unit | Test method |
|---|---|---|---|
| Density | |||
| 20℃ | 1.19 | g/cm³ | ISO 2781 |
| Melt Flow Rate | |||
| 170℃，2.16kg | 30 to 60 | g/10min | ISO 1133 |
| water content | < 0.15 | % | Internal Method |
| Apparent viscosity of melt | |||
| 130℃ | 760 | Pa·s | ISO 1133 |
| Notes |
|---|
| 1. Typical properties: these are not to be construed as specifications. |
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