Journal
JOURNAL OF ENERGETIC MATERIALS
Volume 33, Issue 4, Pages 305-314Publisher
TAYLOR & FRANCIS INC
DOI: 10.1080/07370652.2014.990588
Keywords
energetic binders; mechanical properties; carbon nanotubes; covalent modification; BAMO-AMMO
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Funding
- Key Science and Technology Research Programmes of Education Department of Henan Province [13A430828, 14B430034]
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Using hydroxylated carbon nanotubes (CNT-OH) as a crosslinking agent, covalently modified CNT/3,3 '-bisazidomethyloxetane-3-azidomethyl-3 '-methyloxetane (BAMO-AMMO) thermoset polyurethane elastomers with different CNT-OH content were prepared, and their structure and performance were analyzed. At a CNT-OH mass fraction of 1.0wt%, the elongation ratio was 380% and the tensile strength was measured to be as high as 10.4MPa, which is an 82.5% improvement compared to traditional trimethylolethane (TME)/BAMO-AMMO energetic binders. The measured onset decomposition temperature (i.e., the temperature with 5% weight loss) was 236 degrees C, which is 7 degrees C higher than that of corresponding TME/BAMO-AMMO energetic binders. Furthermore, the identified glass transition temperature (T-g) was -34 degrees C.
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