Introduction of Multi-Silane Coating Method on Energetic Material for Hypersonic Fuel Application

초록

Dual silane capped boron nanoparticles (DSC-BNPs) are synthesized to enhance dispersion stability and combustion efficiency in scramjet fuels. The silane capping process is performed via hydrolysis and condensation reactions, using varying ratios of OTMS and TMSS (10:0, 7:3, 5:5, 3:7, 0:10). The native oxide layer and hydroxyl groups of BNPs facilitate the replacement of hydroxyl groups with the organic groups of silane, enabling successful silane modification by condensation reaction. Among these, the DSC-BNPs with a 5:5 silane ratio demonstrated exceptional stability in fuel for 50 days and achieved the highest calorific value with the shortest combustion time. The dual silane capping created a synergistic effect, significantly enhancing nanoparticle stability and performance. This study presents a novel dual silane surface modification approach for developing high-performance nanofluid fuels. 본 연구는 2025년 정부(방위사업청)의 재원으로 국방과학연구소의 지원을 받아 수행된 미래도전국방기술 연구개발사업임(No.915066201).