轻工学报2026，Vol.41Issue(2)：126-132,7.DOI:10.12187/2026.02.012
烟用醋酸纤维素基超轻气凝胶的构筑及表征
Fabrication and characterization of cigarette butt-derived cellulose acetate-based ultralight aerogels for tobacco applications
摘要
Abstract
[Objective]To achieve the resource valorization of cellulose acetate(CA)from cigarette butts by converting it into high value-added materials,and to investigate its structural and performance characteristics.[Methods]Recycled cellulose acetate(R-CA)was prepared via solvent washing.R-CA was then converted into nanofibers by electrospinning,and further fabricated into aerogels in one step through freeze-drying.The structure and properties of the R-CA nanofiber membranes and corresponding aerogels were characterized by Fourier transform infrared spectroscopy(FTIR),thermogravimetric analysis(TGA),and differential scanning calorimetry(DSC).[Results]R-CA exhibited a similar chemical structure to commercial CA,with similar peak thermal degradation temperatures of 355.0℃and 357.5℃,respectively.This indicates that the purification process did not alter the molecular structure or thermal properties of R-CA.With increasing R-CA electrospinning concentration,the fiber morphology evolved from beaded structures to uniform and smooth nanofibers.The fibers obtained at 17%concentration showed the most uniform diameter distribution,with an average diameter of 336.8 nm.Nanofibers prepared at this optimal concentration were subjected to dispersion,homogenization,and freeze-drying to successfully form a 3D network aerogel.The aerogel had an apparent density of 8.59～11.55 mg/cm3 and a porosity above 99%,showing ultra-low density and high porosity.[Conclusion]This study enables the efficient recovery of R-CA and the preparation of high-performance aerogels,offering a valuable reference for the resource valorization of cigarette butts.关键词
烟蒂/醋酸纤维素/静电纺丝/纳米纤维膜/气凝胶Key words
cigarette butt/cellulose acetate/electrospinning/nanofiber membrane/aerogel分类
轻工纺织引用本文复制引用
吴峤,庄虎,肖静淑,周彬,郝欣,杨俊鹏,王昊,张敦铁..烟用醋酸纤维素基超轻气凝胶的构筑及表征[J].轻工学报,2026,41(2):126-132,7.基金项目
湖北省自然科学基金面上项目(2022CFB463) （2022CFB463）
