皮克林乳液和防水膜的两性纤维素纳米纤维合成在深度欧性溶剂
Umair Qasim1, Terhi Suopajärvi1, Juho Antti Sirviö1
1Fibre and Particle Engineering Research Unit, University of Oulu, Oulu 90570, Finland.
Biomacromolecules
|August 23, 2023
概括
两胞性纤维素纳米纤维 (ACNFs) 通过使用深度环氧溶剂进行合成以进行化. 这些ACNF显示出作为稳定剂在皮克林乳液和水果涂层延长保质期的承诺.
科学领域:
- 材料科学 材料科学 材料科学
- 绿色化学 绿色化学
- 纳米技术纳米技术
背景情况:
- 纤维素修饰对于开发先进材料至关重要.
- 深度环氧溶剂为生物质改造提供可持续的反应介质.
- 两性纤维素衍生物在各种领域都有潜在的应用.
研究的目的:
- 通过使用双重功能深度欧学溶剂系统合成两性纤维素纳米纤维 (ACNFs).
- 研究替代度 (DS) 对ACNF属性和性能的影响.
- 评估ACNF作为皮克林乳液稳定剂和作为水果涂层的稳定剂.
主要方法:
- 纤维素与n-octyl succinic anhydride (OSA) 在三甲基化/伊米达深度溶解剂中的化.
- 在不同OSA-to-anhydroglucose单元摩尔比率 (0.5:1, 1:1, 1.5:1) 的情况下合成ACNFs.
- 描述ACNF的尺寸,表面活性,水性分散稳定性,乳液稳定性,薄膜特性和水果涂层功效.
主要成果:
- 成功合成了具有从0.24-0.66的DS值的ACNFs.
- ACNFs表现出两性特征,形成稳定的水性分散 (高DS除外).
- ACNFs有效地稳定了油在水中的皮克林乳液,并形成了具有高接触角的独立薄膜.
- 随着DS的增加,ACNF膜的拉伸强度下降.
- 含有ACNF分散的水果涂层通过减少氧气接触和水分损失,延长了保质期.
结论:
- 开发的深度欧性溶剂系统是有效的纤维素化.
- ACNFs表现出可调节的两性质和表面活性.
- 作为皮克林乳液稳定剂和食品保存应用,ACNFs具有显著的潜力.
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