宏观分子表面活性剂微结构对水性聚合物分散和衍生聚合物薄膜特性的影响
Ingeborg Schreur-Piet1, Johan P A Heuts1
1Department of Chemical Engineering & Chemistry and Institute for Complex Molecular Systems, Eindhoven University of Technology, P.O. Box 513, 5600 MB Eindhoven, The Netherlands.
Biomacromolecules
|June 11, 2024
概括
这项研究探讨了用聚甲基酸盐-co-butyl acrylate) 乳制成的水性涂层. 不同的宏观稳定剂显著改变了涂层特性,如粘度和疏水性.
科学领域:
- 聚合物科学 聚合物科学
- 材料科学 材料科学 材料科学
- 表面化学 表面化学
背景情况:
- 水性涂料比溶剂性替代品提供环境优势.
- 稳定剂对于控制乳特性和最终涂层性能至关重要.
- 大分子稳定器允许定制的架构和功能.
研究的目的:
- 调查不同含甲基烯酸的宏观稳定剂对聚甲基甲基烯酸-co-butyl acrylate乳的性能的影响.
- 为了合成具有受控架构,组成和摩尔质量的两性宏观分子.
- 为了将乳微观结构与产生的涂层的质行为和表面特性相关联.
主要方法:
- 通过催化链转移聚合合成两性甲基烯酸巨型分子.
- 制备具有恒定的甲基烯酸含量但具有不同宏观分子微观结构的多甲基甲基烯酸-联合丁烯酸乳.
- 乳风学特征,涂层接触角度,硬度,粗度和水蒸气性能.
主要成果:
- 乳表现出多种类型的质行为,从高粘度和剪切稀释到低粘度和牛顿式.
- 由此产生的涂层显示出广泛的水友性/防水性,接触角度从<10°到88°.
- 观察到涂层硬度,粗度和水蒸气吸附/透性的显著差异.
结论:
- 宏观稳定剂的微观结构是控制水性聚甲基甲酸盐-co-butyl acrylate涂料的关键因素.
- 量身定制宏观体结构为实现所需的质和表面特征提供了一条通用的途径.
- 这种方法可以开发出先进的水性涂料,用于各种应用,具有可调节的性能.
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