食品工业科技2024，Vol.45Issue(15)：203-212,10.DOI:10.13386/j.issn1002-0306.2023080316
大豆种皮纳米纤维素水凝胶制备工艺优化及性能分析
Optimization of Preparation Process and Properties Analysis of Soy Hull Nanocellulose Hydrogel
摘要
Abstract
The preparation process of soy hull nanocellulose hydrogel was optimized by Box-Behnken response surface.The structure and properties of soy hull nanocellulose hydrogel were studied.On the basis of single factor experiment,the preparation process of soy hull nanocellulose hydrogel was optimized through response surface with three factors and three levels when the maximum stress was used as the index.The structure and properties of soy hull nanocellulose hydrogel were characterized by Fourier transform infrared spectroscopy,X ray polycrystalline diffractometer,scanning electron microscopy,UV spectrophotometer,etc.The optimal process parameters were as follows:gelling temperature 191 ℃,freezing time 102 h,CaCl2 concentration 7％.Under this condition,the actual maximum stress of soy hull nanocellulose hydrogel was 84.11 kPa,which was close to the predicted value of 83.7 kPa.The nanocellulose of soy hull/sodium alginate/CaCl2(SCNFs/SA/CaCl2)hydrogel showed uniform 3D network structure,excellent tensile performance(elongation at break was 220％),mechanical strength(83.97 kPa),transmittance(82％),and electrical conductivity(1.58 S/cm).The SCNFs/SA/CaCl2 hydrogel also had excellent mechanical strength and fatigue resistance after five cycles of stretching,so the service life of hydrogel was increased.This study provides a new method for preparing a tough,transparent,conductive and fatigue-resistant nanocellulose hydrogel.关键词
纳米纤维素水凝胶/大豆种皮/海藻酸钠/抗疲劳性Key words
nanocellulose hydrogel/soy hull/sodium alginate/fatigue resistance分类
轻工纺织引用本文复制引用
余科金,张宁,王胜男,刘贺,杨立娜..大豆种皮纳米纤维素水凝胶制备工艺优化及性能分析[J].食品工业科技,2024,45(15):203-212,10.基金项目
辽宁省教育厅基金项目(LJKMZ20221489) （LJKMZ20221489）
辽宁省科技特派团项目(2023JH5/10400023). （2023JH5/10400023）
