| Dynamic mechanical properties of cast PU |
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| DOI： |
| Key Words: PU；storage modulus；loss modulus；tanδ |
| Author Name | Affiliation | | YI Yu-hua | South China University of Technology | | SHI Chao-feng | Guangzhou SCUT Bestry Auto Co.，Ltd |
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| Abstract: |
| The dynamic mechanical properties of cast PU were experimentally investigated.The results showed that based on prepolymer system of PTMG，the PU prepared with PPDI possessed higher storage modulus and lower tanδ and was more applicable for the service under high dynamic load when compared to those with MDI or TDI respectively；and the PU based on prepolymer system of CAPA possessed higher storage modulus at temperature below 0 ℃，but lower storage modulus at temperature above 0 ℃，and somewhat higher loss modulus and tanδ when compared to that based on prepolymer system of PTMG. |
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