日用化学工业（中英文）2023，Vol.53Issue(3)：245-252,8.DOI:10.3969/j.issn.1001-1803.2023.03.001
羟乙基纤维素/纳米纤维素稳定的Pickering乳液及其流变特性研究
Study on Pickering emulsion stabilized by hydroxyethyl cellulose/nanocellulose and its rheological properties
摘要
Abstract
Nanocellulose (CNC) was prepared from α-Cellulose by acid hydrolysis method, and its structure and micromorphology were characterized. Pickering emulsion was prepared by using soybean oil as the oil phase and hydroxyethyl cellulose (HEC) and CNC as mixed emulsifiers (HEC/CNC). The emulsion type was determined to be W/O emulsion by dilution method. The thermal stability of the Pickering emulsion was tested, and the results showed that the stability of the Pickering emulsion stabilized by HEC/CNC was stronger than that of the Pickering emulsion prepared by CNC. The effects of CNC mass fraction, oil-water ratio, and HEC mass fraction on the stability of Pickering emulsion were studied. The rheological properties of Pickering emulsion stabilized by HEC/CNC were analyzed. The results showed that, with the increase of HEC mass fraction, the stability of Pickering emulsion was enhanced. When the oil-water ratio was 8:2, the CNC mass fraction was 0.2％ and the HEC mass fraction was 0.4％, the Pickering emulsion exhibited the strongest stability, and its emulsion droplet size was approximately 20 μm. The Pickering emulsion stabilized by HEC/CNC thus prepared could be stable for 100 days. The Pickering emulsion stabilized by HEC/CNC had stronger stability and smaller droplet diameter than that of the CNC-stabilized Pickering emulsion. The Pickering emulsion stabilized by HEC/CNC exhibited a rheological property of "shear-thinning". When the HEC mass fraction in solution was increased, the shear viscosity of the emulsion decreased with the increase of shear rate.关键词
纳米纤维素/羟乙基纤维素/Pickering乳液/稳定性/流变特性Key words
nanocellulose/hydroxyethyl cellulose/Pickering emulsion/stability/rheological properties分类
化学化工引用本文复制引用
丁正青,吴颖异,王维运,黄旭娟,蔡照胜..羟乙基纤维素/纳米纤维素稳定的Pickering乳液及其流变特性研究[J].日用化学工业（中英文）,2023,53(3):245-252,8.基金项目
国家自然科学基金青年基金项目(31901257) （31901257）
盐城工学院校级科研项目资助(xjr2019008) （xjr2019008）
