Effect of Perchlorate on Combustion Properties of Directly-Written Al/PVDF Composites

Fire

article

Jingwei Li¹  Xuwen Liu¹  Quanmin Xie¹  Jiaxin Su²  Maocong Hu¹  Zhenhua Yao¹ 

[1] State Key Laboratory of Precision Blasting, Jianghan University;School of Chemistry and Chemical Engineering, Nanjing University of Science and Technology;School of Optoelectronic Materials & Technology, Jianghan University

关键词: metastable intermolecular composite;    n-Al/PVDF;    perchlorate;    direct ink writing;    combustion properties;   

DOI  :  10.3390/fire6030106

学科分类：环境科学（综合）

来源: mdpi

【 摘 要 】

Metastable intermolecular composites (MICs) based on Al/PVDF have become one of the most important materials in the field of additive manufacturing of energetic materials due to their high energy density and designability. In this work, the energy utilization efficiency and energy release performance of directly written Al/PVDF composites were regulated by introducing ammonium perchlorate (AP) and potassium perchlorate (KP) as gas generators and oxidants. The effect of AP/KP on the combustion performance of MICs systems has been studied in depth. It was found that the addition of AP/KP can increase the combustion temperature and flame duration of the Al/PVDF system. Moreover, the flame propagation rate of the Al/PVDF system decreases as AP/KP addition increases. Therefore, the strategy of introducing AP/KP into directly written Al/PVDF composites can effectively control the energy performance of this energetic system, thereby promoting its practical application in propellants, heterogeneous explosives and gas generators.

【 授权许可】

CC BY