冰模板和交叉链接的桑坦基水凝:朝着量身定制的特性
Irina Elena Raschip1, Nicusor Fifere1, Maria Marinela Lazar1
1"Petru Poni" Institute of Macromolecular Chemistry, Grigore Ghica Voda Alley 41A, 700487 Iasi, Romania.
Gels (Basel, Switzerland)
|July 28, 2023
概括
这项研究通过使用冷凝和交联剂改进了食品包装的香甘 (XG) 薄膜. 由此产生的XG冷凝显示出增强的机械性能和稳定性,特别是在与1,4-butanediol diglycidyl ether交叉连接时.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 生物材料工程 生物材料工程
背景情况:
- 聚糖类如丹 (XG) 是有前途的食品包装由于形成膜的特性.
- XG 薄膜有其局限性:机械强度较差和高水友性,影响湿度稳定性和处理能力.
- 探索交叉链接,以增强XG属性,用于高级应用.
研究的目的:
- 通过交叉链接稳定一个山 (XG) 矩阵.
- 为了制备具有改善物理化学性质的基于XG的冷凝.
- 评估不同交叉连接器和比率对XG冷凝特性的影响.
主要方法:
- 用于在冰点以下稳定XG矩阵的冷化技术.
- 使用的交叉链接剂:糖醇二甲酸乙烯,1,4-butanediol二甲酸乙烯和.
- 鉴定方法包括FTIR,SEM,AFM,胀动力学和单轴压缩试验.
主要成果:
- 基于XG的冷凝已经成功地以各种形式 (微球,单体,薄膜) 制备.
- 鉴定发现异质形态与相互连接的毛孔;毛孔大小随着交叉链接器的类型和比例而变化.
- 与1,4-butanediol diglycidyl ether交叉连接的冷凝显示出优越的弹性,能够承受高变形.
结论:
- 低温化是一种有效的,环保的方法,可以增强XG的特性.
- 交叉连接显著提高了机械稳定性,并减少了XG材料的水友性.
- 定制交叉连接剂的选择和度允许对XG冷凝特性进行受控的修改,以适应特定的应用.
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