| Properties of Nano-alumina/NR Composites |
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| DOI： |
| Key Words: nano-alumina；NR；composite；thermal conductivity |
| Author Name | Affiliation | | DING Jin-bo | Beijing University of Chemical Technology | | WANG Zhen-hua | Beijing University of Chemical Technology | | ZHANG Li-qun | Beijing University of Chemical Technology |
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| Abstract: |
| The nano-alumina was modified in-situ and the nano-alumina/NR composites were prepared.The influence of addition level of nano-alumina，heat treatment time and addition level of coupling agent Si69 on the physical properties，dynamic mechanical properties and thermal conductivity of the composites were investigated.The results showed that，as the addition level of nano-alumina increased，the tensile strength of composites decreased，and thermal conductivity and temperature rise in compression fatigue test increased.Interface bonding of nano-alumina and NR was improved by the in-situ modification.As the in-situ modification time extended or the addition level of coupling agent Si69 increased，the tensile strength and thermal conductivity of composites increased first and then decreased，and the temperature rise in compression fatigue test decreased. |
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