甘油对以 AlCl3·6H2O 水溶液为壳聚糖溶剂的壳聚糖/聚乙烯醇薄膜性能的影响。
The effect of glycerol on properties of chitosan/poly(vinyl alcohol) films with AlCl3·6H2O aqueous solution as the solvent for chitosan.
机构信息
School of Chemical Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China.
School of Chemical Engineering, Fuzhou University, Fuzhou 350108, People's Republic of China.
出版信息
Carbohydr Polym. 2016 Jan 1;135:191-8. doi: 10.1016/j.carbpol.2015.08.094. Epub 2015 Sep 2.
The AlCl3·6H2O aqueous solution was used to dissolve chitosan (CS) and the CS/poly(vinyl alcohol) (PVA) blend films were prepared at the absence of acetic acid. AlCl3·6H2O was retained in CS/PVA film and glycerol was added to form the complex plasticizer with AlCl3·6H2O. The effect of glycerol on the water sorption, crystalline, thermal and mechanical properties of AlCl3·6H2O doped CS/PVA film was studied by atomic force microscopy, X-ray diffraction, thermal gravity analysis and tensile testing, respectively. The experimental results showed that glycerol had a significant positive effect on the properties of AlCl3·6H2O doped CS/PVA films. With the synergism effect of AlCl3·6H2O and glycerol, the prepared CS/PVA films showed excellent mechanical properties. With the addition of 30wt% glycerol, the AlCl3·6H2O doped CS/PVA films behave the tensile strength of 39MPa and elongation at break of 120%, respectively.
采用 AlCl3·6H2O 水溶液溶解壳聚糖（CS），在无醋酸条件下制备 CS/聚乙烯醇（PVA）共混膜。AlCl3·6H2O 保留在 CS/PVA 膜中，甘油的加入与 AlCl3·6H2O 形成复合增塑剂。通过原子力显微镜、X 射线衍射、热重分析和拉伸试验分别研究了甘油对 AlCl3·6H2O 掺杂 CS/PVA 膜的吸水率、结晶性、热性能和力学性能的影响。实验结果表明，甘油对 AlCl3·6H2O 掺杂 CS/PVA 膜的性能有显著的积极影响。在 AlCl3·6H2O 和甘油的协同作用下，所制备的 CS/PVA 膜表现出优异的力学性能。随着 30wt%甘油的加入，AlCl3·6H2O 掺杂 CS/PVA 膜的拉伸强度为 39MPa，断裂伸长率为 120%。
Zotero 插件