使用细菌纳米纤维素稳定皮克林乳液增强粉膜特性
Natália Tavares de Almeida1, André Luís Sousa Pereira2, Matheus de Oliveira Barros3
1Department of Food Engineering, Federal University of Ceará (UFC), Fortaleza 60455-760, CE, Brazil.
Polymers
|December 17, 2024
概括
将用细菌纤维素 (BC) 稳定的皮克林乳液添加到粉膜中,显著改善了它们的耐水性和屏障性能. 2.5%的度提供了疏水性和机械强度的最佳平衡.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物科学 聚合物科学
- 食品科学 食品科学 食品科学
背景情况:
- 基于粉的薄膜往往表现出不良的水友性和机械性能,限制了它们的应用.
- 提高屏障性能和疏水性对于开发先进的基于粉的材料至关重要.
研究的目的:
- 为了提高粉基薄膜的水友性,屏障性能和机械性能.
- 为了研究与纳米纤维化细菌纤维素 (BC) 稳定Pickering乳液结合的效果.
主要方法:
- 用纳米纤维化细菌纤维素稳定皮克林乳液被纳入粉膜悬浮液中,度不同 (1.0%7.5%).
- 用水蒸气透性 (WVP),接触角度测量,里埃变换红外光谱 (FTIR) 和拉伸性测试来表征电影.
主要成果:
- 加入皮克林乳液显著降低了薄膜的水友性,由增加的接触角 (49.7°至71.0°) 证明.
- 水蒸气屏障性能得到了显著改善,WVP从0.085降至0.016g·mm/h·m2·kPa.
- FTIR证实了乳液成功融入粉基质,2.5%度产生了最佳的疏水性和机械强度.
结论:
- 用纳米纤维化细菌纤维素稳定皮克林乳液有效提高粉膜的功能性质.
- 这一战略为开发具有更好的抗水性和屏障能力的高性能粉基材料提供了有前途的方法.
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