Anti-migration of DOS by Using HTPB/GO liner and GO film
Zhehong Lu, Jingyi Li, Yanlong Wang, Ziqiang Zhu, Wei Jiang, Rong Huang, Yubing Hu · Journal of Physics Conference Series · 2024
Abstract The enhancement of anti-migration performance in insulation materials is critical for the stability and reliability of solid rocket motors (SRMs). This study explores two innovative methods to improve the barrier properties of Ethylene Propylene Diene Monomer (EPDM) insulation layers. Firstly, a composite liner combining Hydroxyl-Terminated Polybutadiene (HTPB) and Graphene Oxide (GO) was synthesized through a solution blending method. Additionally, a GO film was fabricated and integrated with the HTPB liner and EPDM to create a multilayer sandwich structure. The incorporation of these materials was found to significantly enhance the anti-migration performance, with the composite samples showing a 16.89% improvement over standard samples. The layered structure of GO effectively impedes the migration of dioctyl sebacate (DOS), enhancing the anti-plasticizer migration properties of the EPDM. While the multilayer sandwich samples also demonstrated improved performance, issues with adhesion between the GO film and EPDM lead to reduce its effectiveness. Future research will focus on improving the adhesion between the GO film and EPDM to further enhance anti-migration performance. This study provides valuable insights for developing high-performance EPDM insulation materials with enhanced anti-migration properties for aerospace applications.