CAJ | 학술논문

采用高强中空玻璃微珠(HGB)改性酚醛树脂(PF)，制备了PF/高硅氧布/HGB复合材料层压板，研究了HGB含量对复合材料烧蚀性能、密度、隔热性能的影响，同时采用扫描电子显微镜和金相电子显微镜观察了HGB的分布。结果表明，HGB均匀分散在纤维束与纤维束之间的树脂胶液中；适量的HGB可提高复合材料炭化层强度，从而提高复合材料的耐烧蚀能力；当HGB质量分数为5%时，复合材料氧-乙炔线烧蚀率和质量烧蚀率最低，分别为0.091 mm/s和0.0669 g/s，比未添加HGB的降低了35.9%和20.1%；复合材料的密度随HGB含量的增加而降低；综合比热容、热扩散系数和导热系数的分析，当HGB质量分数为5%时，复合材料的综合隔热性能最好。
채용고강중공파리미주(HGB)개성분철수지(PF)，제비료PF/고규양포/HGB복합재료층압판，연구료HGB함량대복합재료소식성능、밀도、격열성능적영향，동시채용소묘전자현미경화금상전자현미경관찰료HGB적분포。결과표명，HGB균균분산재섬유속여섬유속지간적수지효액중；괄량적HGB가제고복합재료탄화층강도，종이제고복합재료적내소식능력；당HGB질량분수위5%시，복합재료양-을결선소식솔화질량소식솔최저，분별위0.091 mm/s화0.0669 g/s，비미첨가HGB적강저료35.9%화20.1%；복합재료적밀도수HGB함량적증가이강저；종합비열용、열확산계수화도열계수적분석，당HGB질량분수위5%시，복합재료적종합격열성능최호。
Phenolic resin (PF) was modified by high-strength hollow glass bead (HGB),then PF/high silica fabric/HGB composites laminates were prepared. Effects of HGB content on ablation properties,density and heat-insulating properties of the composites were studied,scanning electron microscopy and metallographic electron microscope were used to observe the distribution of HGB. The results show that HGB disperses uniformly in the resin glue among the high silica fiber bundle. HGB with moderate content can strengthen the char layer and improve the ablation-resistant ability of the composites. When the mass fraction of HGB is 5%,the oxyacetylene ablation rate and mass ablation rate of the composites are the lowest and their value are 0.091 mm/s and 0.0669 g/s,comparing with the composites unfilled with HGB,they decrease by 35.9%and 20.1%. The density of the composite decreases with the increase of HGB content. After comprehensive analysis of specific heat capacity,thermal diffusivity and thermal conductivity,when the mass fraction of HGB is 5%,the comprehensive heat-insulating properties of the composites are best.