Preparation of Al@FTCS/P(VDF-HFP) Composite Energetic Materials and Their Reaction Properties.

Xiang Ke, Lifang Deng, Yanping Wang, Kai Tang, Lei Xiao, Gazi Hao, Peili Li, Xiang Zhou

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Article in Materials (Basel, Switzerland), 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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8 authors.

Xiang KeCollege of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu 233000, China.ORCID 0000-0001-6695-6599

Lifang DengCollege of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu 233000, China.

Yanping WangCollege of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu 233000, China.

Kai TangCollege of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu 233000, China.

Lei XiaoNational Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, Nanjing 210094, China.

Gazi HaoNational Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, Nanjing 210094, China.ORCID 0000-0002-9254-8078

Peili LiCollege of Chemistry and Materials Engineering, Anhui Science and Technology University, Bengbu 233000, China.ORCID 0000-0003-3965-6069

Xiang ZhouNational Special Superfine Powder Engineering Research Center, Nanjing University of Science and Technology, Nanjing 210094, China.ORCID 0000-0001-7726-7131

Funding

Anhui Provincial Natural Science Foundation 2108085QE199, 2308085QC74College Students Innovative Entrepreneurial Training Plan Program 202210879033, 202310879050National Natural Science Foundation of China 51706105, 12102194 and 22375098Natural Science Research Project of Anhui Educational Committee 2022AH051653, 2023AH051862 and 2023AH051887Research Activity Funding Project for Postdoctoral Researchers in Anhui Province 2021B500, 2023B709Talent-Introduction Program for Anhui Science and Technology University HCYJ202103

6 · The paper itself

Abstract

Strengthening the interfacial contact between the reactive components effectively boosts the energy release of energetic materials. In this study, we aimed to create a close-knit interfacial contact condition between aluminum nanoparticles (Al NPs) and Polyvinylidene fluoride-hexafluoropropylene (P(VDF-HFP)) through hydrolytic adsorption and assembling 1H, 1H, 2H, 2H-Perfluorododecyltrichlorosilane (FTCS) on the surface of Al NPs. Leveraging hydrogen bonding between -CF and -CH and the interaction between C-F⋯F-C groups, the adsorbed FTCS directly leads to the growth of the P(VDF-HFP) coating layer around the treated Al NPs, yielding Al@FTCS/P(VDF-HFP) energetic composites. In comparison with the ultrasonically processed Al/P(VDF-HFP) mixture, thermal analysis reveals that Al@FTCS/P(VDF-HFP) exhibits a 57 °C lower reaction onset temperature and a 1646 J/g increase in heat release. Associated combustion tests demonstrate a 52% shorter ignition delay, 62% shorter combustion time, and a 288% faster pressurization rate. These improvements in energetic characteristics stem from the reactivity activation of FTCS towards Al NPs by the etching effect to the surface Al

Indexed as

combustion performancesheat releaseinterfacial contactreactivity activationthermal analysis

Identifiers

PMID38998129

DOI10.3390/ma17133046

PMCPMC11242070

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.