Journal
PLASTICS RUBBER AND COMPOSITES
Volume 45, Issue 2, Pages 72-80Publisher
TAYLOR & FRANCIS LTD
DOI: 10.1080/14658011.2015.1136780
Keywords
Polymer composites; Polybenzoxazine; Aluminum nitride; Mechanical properties; Thermal properties; Silane-treatment
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Funding
- National Natural Science Foundation of China [50973022]
- Specialized Research Funds for the Doctoral Program of Higher Education [20122304110019]
- Fundamental Research Funds for the Central Universities [HEUCFT1009]
- open fund of Key Laboratory of Superlight Material and Surface Technology of Ministry of Education, Harbin Engineering University
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A new kind of polymer composite, produced from the typical polybenzoxazine and 0-30 wt-% native and silane-treated aluminium nitride (T-AlN), was investigated. The mechanical tests revealed a significant increase in the microhardness and flexural properties upon adding the T-AlN particles compared to that obtained from the untreated ones. By adding 0-30 wt-% T-AlN, the tensile moduli were accurately reproduced by the Halpin-Tsai and Nielsen models. At 30 wt-% T-AlN, dynamic mechanical analysis showed a significant increase in the storage moduli and the glass transition temperature (T-g), reaching 3.2 GPa and 217 degrees C, respectively. The thermal stability of these materials was significantly improved upon the addition of the T-AlN fillers. These improvements are attributed to the high thermal and mechanical properties of the fillers and their good dispersion and adhesion in and to the matrix as revealed by a morphological analysis.
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