中国造纸学报2026，Vol.41Issue(1)：8-17,10.DOI:10.11981/j.issn.1000-6842.2026.01.08
有机酸水解制备甘蔗渣纤维素纳米晶体及其性能研究
Preparation and Properties of Sugarcane Bagasse Cellulose Nanocrystal by Organic Acid Hydrolysis
摘要
Abstract
This study utilized sugarcane bagasse as raw material,employed a pretreatment method combining p-toluenesulfonic acid-alkali-bleach to obtain sugarcane bagasse cellulose(TSA-SCB).Subsequently,oxalic acid hydrolysis was applied to produce sugarcane bagasse cel-lulose nanocrystal(SCB-CNC).The optimum preparation conditions of both TSA-SCB and SCB-CNC were investigated.The results showed that lignin and hemicellulose from SCB were efficiently removed,and the prepared TSA-SCB had a high purity,when thep-toluenesulfonic acid solution concentration was 65％,reaction temperature was 80℃,and reaction time was 20 min.Under the conditions of oxalic acid solu-tion concentration of 90％,hydrolysis temperature of 110℃,and hydrolysis time of 3 h,SCB-CNC had a yield of 29.8％with the Zeta poten-tial of-32.65 mV and excellent stability of suspension.The physicochemical properties of SCB-CNC were characterized,the results indicat-ed that SCB-CNC exhibited rod-shaped with an average length and average width of about 468 and 39 nm,respectively,and it was successful-ly introduced carboxyl groups onto surface of SCB-CNC while retaining the crystalline structure of cellulose type I.Furthermore,SCB-CNC suspensions could self-assemble into a chiral nematic liquid crystal phase at a certain concentration.关键词
甘蔗渣/预处理/有机酸/纤维素纳米晶体/手性向列液晶Key words
sugarcane bagasse/pretreatment/organic acid/cellulose nanocrystal/chiral nematic liquid crystal分类
轻工纺织引用本文复制引用
王琼,吴晓亮,纪斯怡,吕源财,叶晓霞,刘以凡,林春香,刘明华..有机酸水解制备甘蔗渣纤维素纳米晶体及其性能研究[J].中国造纸学报,2026,41(1):8-17,10.基金项目
国家自然科学基金(22208057) （22208057）
中央引导地方科技发展资金项目(2024L3001). （2024L3001）
