纤维素科学与技术2026，Vol.34Issue(1)：1-7,7.DOI:10.16561/j.cnki.xws.2026.01.02
乙酰乙酸化纤维素纳米纤维的制备及乳化性能研究
Preparation and Emulsification Performance of Acetoacetate-functionalized Cellulose Nanofibers
摘要
Abstract
This work presented a facile heterogeneous transesterification method for preparing reactive acetoacetate-functionalized cellulose nanofibers(CNF-AA)with excellent emulsifying performance.CNF were surface-modified with β-diketone groups via reaction with tert-butyl acetoacetate(t-BAA)at 110℃ under heterogeneous conditions.The physicochemical properties and structural morphology of pristine and modified CNF were systematically characterized using Fourier transform infrared spectroscopy(FT-IR),transmission electron microscopy(TEM),X-ray diffraction(XRD),and rheological analysis.The results demonstrated that the modification process preserved both the native nanofibrillar network structure and crystalline integrity of CNF.Owing to its amphiphilic nature,CNF-AA effectively stabilized oil-in-water(O/W)Pickering emulsions.The emulsion droplets increased in size from 9 μm to 20 μm as the oil-to-water ratio increased from 1∶3 to 1∶1.All emulsions exhibited excellent storage stability,with no significant phase separation observed over 7 days.关键词
纤维素纳米纤维/乙酰乙酸化改性/Pickering乳液/稳定性/流变性Key words
cellulose nanofiber/acetoacetylation modification/Pickering emulsion/stability/rheology分类
通用工业技术引用本文复制引用
荣立夺,彭楚泷,王碧佳,毛志平,冯雪凌..乙酰乙酸化纤维素纳米纤维的制备及乳化性能研究[J].纤维素科学与技术,2026,34(1):1-7,7.基金项目
中央高校基本科研业务费专项资金资助(2232024D-14) （2232024D-14）
