EPDM insulation modified with vinyl triethoxysilane functionalized GO to prevent plasticizer migration in solid propellant

Zhehong Lu; Ziqiang Zhu; Yulong Zhang; Cao Yang; Bohan Zhang; Haoran Bai; Guangpu Zhang; Yubing Hu; Wei Jiang

FirePhysChem (Dec 2023)

EPDM insulation modified with vinyl triethoxysilane functionalized GO to prevent plasticizer migration in solid propellant

Zhehong Lu,
Ziqiang Zhu,
Yulong Zhang,
Cao Yang,
Bohan Zhang,
Haoran Bai,
Guangpu Zhang,
Yubing Hu,
Wei Jiang

Affiliations

Zhehong Lu: National Special Superfine Powder Engineering Research Center of China, Nanjing University of Science and Technology, Nanjing 210014, China
Ziqiang Zhu: National Special Superfine Powder Engineering Research Center of China, Nanjing University of Science and Technology, Nanjing 210014, China
Yulong Zhang: China North Industry Advanced Technology Generalization Institute, Beijing 100089, China
Cao Yang: National Special Superfine Powder Engineering Research Center of China, Nanjing University of Science and Technology, Nanjing 210014, China
Bohan Zhang: National Special Superfine Powder Engineering Research Center of China, Nanjing University of Science and Technology, Nanjing 210014, China
Haoran Bai: College of Materials Science and Engineering, Shenyang University of Technology, Shenyang 110000, China
Guangpu Zhang: National Special Superfine Powder Engineering Research Center of China, Nanjing University of Science and Technology, Nanjing 210014, China
Yubing Hu: National Special Superfine Powder Engineering Research Center of China, Nanjing University of Science and Technology, Nanjing 210014, China
Wei Jiang: National Special Superfine Powder Engineering Research Center of China, Nanjing University of Science and Technology, Nanjing 210014, China; Corresponding author.

Journal volume & issue: Vol. 3, no. 4
pp. 292 – 299

Abstract

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Excessive plasticizer migration to the insulation will have a serious impact on the safety of solid propellants. In this paper, the anti-migration EPDM insulation was prepared by introducing vinyl triethoxysilane functionalized GO (GS) as modifiers to prevent the migration of energetic plasticizers. The anti-migration performance at different temperatures was evaluated by immersion tests. The concentration of mixed plasticizers that migrated into the EPDM/GS-3 at 30 °C was decreased from 24.7% to 20.4% (17.4% decrease). The results confirmed that the introduction of GS prevented the migration of plasticizers to the EPDM insulation. The SEM results showed that GS was well-dispersed in the insulation, and there is strong interfacial interaction between GS and EPDM chains. Our research provided a new method to prepare EPDM insulation with excellent anti-migration performance.

Published in FirePhysChem

ISSN: 2667-1344 (Online)
Publisher: KeAi Communications Co. Ltd.
Country of publisher: China
LCC subjects: Technology: Chemical technology: Explosives and pyrotechnics
Website: https://www.keaipublishing.com/en/journals/firephyschem/

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