中国塑料2024，Vol.38Issue(10)：23-28,6.DOI:10.19491/j.issn.1001-9278.2024.10.005
OSA改性高直链玉米淀粉复合疏水膜的制备及性能研究
Preparation and properties of hydrophobic composite film based on OSA-modified high amylose corn starch
吴建国 1洪雁 1顾正彪 2程力 2李兆丰 2李才明 2班宵逢2
作者信息
- 1. 江南大学食品学院,江南大学食品科学与资源挖掘全国重点实验室,江南大学食品营养与安全协同创新中心,江苏 无锡 214122||嘉兴未来食品研究院,浙江 嘉兴 314000
- 2. 江南大学食品学院,江南大学食品科学与资源挖掘全国重点实验室,江南大学食品营养与安全协同创新中心,江苏 无锡 214122
- 折叠
摘要
Abstract
In this study,high amylose corn starch(HACS)was esterified with octenyl succinic anhydride(OSA)to ob-tain three types of OSA starchs with different degree of modification(OS-3,OS-6,and OS-9).Three types of OSA-modified high amylose corn starch composite films(OS-3/GEL,OS-6/GEL,and OS-9/GEL)were prepared using the as-prepared OSA starchs as raw materials and gelatin as a compound material.The light permeability,water solubility,moisture absorption,and surface hydrophobicity of the composite films were investigated.The results indicated that the properties of OSA-modified starch composite films were greatly improved compared to the unmodified starch composite film.OS-6/GEL exhibited the best performance with high light transmittivity of 87.72%.However,its water solubili-ty,moisture absorption,and water vapor transmittance decreased by 24.5%,29.6%,and 30.35%,respectively.In addition,its maximum static contact angle and dynamic contact angle reached 124.6 °and more than 100 °,respectively,after contact with water for 3 min.X-ray diffraction results indicated that the crystallinity of the original starch was re-duced by the OSA modification,and the compatibility between the film-forming components was improved.Infrared spectroscopy analysis demonstrated that the introduction of OSA group weakened the interaction between the starch and the hydroxyl groups in gelatin molecules,causing the stronger hydrogen bonding between the two groups.Based on the properties and structure of the composite films,it could be concluded that the OSA modification enhanced the hydropho-bic properties of the high amylose corn starch composite films.Through introducing an appropriate number of OSA groups,the resultant OS-6/GEL presented the best properties and excellent hydrophobic performance.关键词
高直链玉米淀粉/辛烯基琥珀酸酐/淀粉复合膜/疏水性Key words
high amylose corn starch/octenyl succinic anhydride/starch composite film/hydrophobicity分类
化学化工引用本文复制引用
吴建国,洪雁,顾正彪,程力,李兆丰,李才明,班宵逢..OSA改性高直链玉米淀粉复合疏水膜的制备及性能研究[J].中国塑料,2024,38(10):23-28,6.
