聚硫密封胶应用于飞机机身密封和整体油箱密封,低密度聚硫密封胶是航空器实现轻量化的关键材料之一,其性能直接影响飞机的燃油效率、结构可靠性及服役寿命。综述了近年来国内外低密度聚硫密封胶的研究进展及工业应用,重点分析了轻质填料体系、国内外低密度聚硫密封胶产品等核心技术方向,并结合典型应用案例,探讨了该领域的发展趋势与挑战。
Polysulfide sealants are widely used for aircraft fuselage sealing and integral fuel tank sealing.Low-density aerospace sealants are critical materials for achieving aircraft lightweighting,and their performance directly impacts aircraft fuel efficiency,structural reliability,and service lifespan.This paper reviewed recent research progress on low-density polysulfide sealants globally,focusing on core technical directions such as lightweight filler systems and domestic and international low-density polysulfide sealant products.By analyzing typical application cases,the paper also discussed future development trends and challenges in this field.
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