一种新型的pH响应乳液系统,通过改性纳米纤维素稳定,并使用基于脂的可逆电荷表面活性剂进行修改
Wenjing Zhang1, Shengfeng Ye1, Zhaolan Zhai2
1Institute of Chemical Industry of Forest Products, CAF, National Engineering Lab. for Biomass Chemical Utilization, Key Lab. of Chemical Engineering of Forest Products, National Forestry and Grassland Administration, Key Lab. of Biomass Energy and Material, Jiangsu Province, Nanjing 210042, China; Jiangsu Co-Innovation Center of Efficient Processing and Utilization of Forest Resources, Nanjing Forestry University, Nanjing 210037, China.
International journal of biological macromolecules
|February 13, 2025
概括
这项研究引入了一种新的pH响应皮克林乳液系统,使用纳米纤维素和一种独特的表面活性剂. 该系统允许调节的乳液特性和易于分离,使可持续应用的多重重复用成为可能.
科学领域:
- 材料科学 材料科学 材料科学
- 合体和表面化学
背景情况:
- 纳米纤维素是常见的皮克林乳液稳定剂,但由于复杂的修改,很少用于刺激响应系统.
- 开发响应刺激的皮克林乳液对于先进的材料应用至关重要.
研究的目的:
- 使用纳米纤维素和对pH敏感的表面活性剂创建一种新的,对pH敏感的皮克林乳液系统.
- 通过pH控制来证明乳液特性 (滴滴大小,稳定性,粘度) 的可调性.
- 建立一个可持续的系统,使用可重复使用的组件.
主要方法:
- 纳米纤维素在现场的化,使用响应pH的树脂衍生表面活性剂 (MPAA).
- 通过调整pH值,可逆转换MPAA头组电荷在阴离子 (MPAAH) 和阳离子 (MPAANa) 形式之间.
- 在酸性 (pH 4.0) 和性 (pH 10.0) 条件下分别形成的皮克林乳液凝和油在分散乳液的表征.
主要成果:
- 稳定,高粘度的皮克林乳液凝在pH值为4.0时形成,这是由于纳米纤维素被阴离子MPAAH水化.
- 在pH 10.0下形成的具有较小水滴尺寸和较低粘度的油在分散乳液,作为纳米纤维素分散.
- 通过简单的pH调整实现可调节的乳液特性 (滴子大小,稳定性,粘度).
- 证明了MPAA和纳米纤维素的成功分离和多次重复使用.
结论:
- 使用纳米纤维素和一种新型表面活性剂开发了一种简单有效的方法来制造pH响应的皮克林乳液.
- 该系统提供可调节的性能和优良的可重复使用性,突出显示经济效益和可持续潜力.
- 这种方法为设计先进的环保乳液系统提供了一个有前途的途径.
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