TY - JOUR
T1 - In situ preparation of Al@3-Perfluorohexyl-1, 2-epoxypropane@glycidyl azide polymer (Al@PFHP@GAP) high-energy material
AU - Zhang, Lichen
AU - Su, Xing
AU - Wang, Shuo
AU - Li, Xiaodong
AU - Zou, Meishuai
N1 - Publisher Copyright:
© 2022
PY - 2022/12/15
Y1 - 2022/12/15
N2 - Fluoride coating can reduce the ignition temperature, enhance the burning rate and inhibit the agglomeration of aluminum powder. However, the addition of non-energetic fluoride can reduce the energy of aluminum powder. In this study, for the first time, 3-Perfluorohexyl-1,2-epoxypropane (PFHP) was coated on the surface of aluminum powder, which reacted with glycidyl azide polymer (GAP) in situ to form core–shell Al@PFHP@GAP. Compared with raw aluminum powder, Al@PFHP@GAP not only significantly reduced ignition temperature (about 150 °C), but also greatly improved the combustion efficiency (from 87.7% to 97.6%). Besides, the heat of combustion was also greatly increased by 6.3%, compared with that of raw aluminum powder. Such performances were outstanding among the existing coated Al. In addition, the formation of coating shell effectively improved the hydrophobicity and corrosion resistance of the aluminum powder. In a word, our derived Al@PFHP@GAP provided a novel rationale for aluminum powder with greatly enhanced combustion performance.
AB - Fluoride coating can reduce the ignition temperature, enhance the burning rate and inhibit the agglomeration of aluminum powder. However, the addition of non-energetic fluoride can reduce the energy of aluminum powder. In this study, for the first time, 3-Perfluorohexyl-1,2-epoxypropane (PFHP) was coated on the surface of aluminum powder, which reacted with glycidyl azide polymer (GAP) in situ to form core–shell Al@PFHP@GAP. Compared with raw aluminum powder, Al@PFHP@GAP not only significantly reduced ignition temperature (about 150 °C), but also greatly improved the combustion efficiency (from 87.7% to 97.6%). Besides, the heat of combustion was also greatly increased by 6.3%, compared with that of raw aluminum powder. Such performances were outstanding among the existing coated Al. In addition, the formation of coating shell effectively improved the hydrophobicity and corrosion resistance of the aluminum powder. In a word, our derived Al@PFHP@GAP provided a novel rationale for aluminum powder with greatly enhanced combustion performance.
KW - Aluminum
KW - Core–shell
KW - High-energy
KW - In situ
UR - http://www.scopus.com/inward/record.url?scp=85135352602&partnerID=8YFLogxK
U2 - 10.1016/j.cej.2022.137118
DO - 10.1016/j.cej.2022.137118
M3 - Article
AN - SCOPUS:85135352602
SN - 1385-8947
VL - 450
JO - Chemical Engineering Journal
JF - Chemical Engineering Journal
M1 - 137118
ER -