Mesoporous Silica Spheres Incorporated Aluminum/Poly (Vinylidene Fluoride) for Enhanced Burning Propellants

被引：42

作者：

Wang, Haiyang ^{[1
,2
]}

DeLisio, Jeffery B. ^{[1
,2
]}

Holdren, Scott ^{[1
,2
]}

Wu, Tao ^{[1
,2
]}

Yang, Yong ^{[1
,2
]}

Hu, Junkai ^{[1
,2
]}

Zachariah, Michael R. ^{[1
,2
]}

机构：

[1] Univ Maryland, Dept Chem & Biomol Engn, College Pk, MD 20742 USA

[2] Univ Maryland, Dept Chem & Biochem, College Pk, MD 20742 USA

来源：

ADVANCED ENGINEERING MATERIALS | 2018年 / 20卷 / 02期

关键词：

aluminum; burning rate; films PVDF; mesoporous silica particles; ELECTROSPRAY FORMATION; MASS-SPECTROMETRY; NANO-ALUMINUM; BETA-PHASE; NANOCOMPOSITES; COMBUSTION; ENERGY; PVDF;

D O I：

10.1002/adem.201700547

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this paper, we demonstrate that preparation by electrospray deposition of mesoporous SiO2 particles can be employed as additives to Aluminum/Poly (Vinylidene Fluoride) (Al/PVDF) to enhance reaction velocity. We find that the reaction velocity of Al/PVDF with 5wt% SiO2 is 3x higher. The presence of meso-SiO2 appears to accelerate the decomposition of PVDF, with a significant increase in HF release, resulting in higher heat release. We believe that hot-spots around meso-SiO2 may serve as multiple ignition points, with the multi-layered structure promoting heat convection to increase the propagation rate.

引用

页数：7

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