一步接近涂料应用利用自我分层:风病学修饰剂的影响
Timothy J Murdoch1, Baptiste Quienne2, Maialen Argaiz3
1Department of Materials, Loughborough University, LE11 1RJ Loughborough, United Kingdom.
ACS applied polymer materials
|August 17, 2023
概括
风病学修饰剂控制涂料中的体颗粒分层. 赞坦使得上部结构小,而与其他修饰剂的强烈相互作用创造了多样化的分层安排,有助于涂层配方.
科学领域:
- 合体和表面科学科学
- 材料科学 材料科学 材料科学
- 类风病学 类风病学 类风病学
背景情况:
- 体颗粒的自我分层为单次应用提供了一条通往多功能涂层的途径.
- 实际的涂料配方是复杂的混合物,对可预测的分层构成挑战.
研究的目的:
- 调查不同类型的风质修饰剂 (RMs) 如何影响阳离子乳颗粒混合物的分层.
- 了解粒子-学修饰器相互作用在控制分层行为的作用.
主要方法:
- 使用原子力显微镜 (AFM) 来分析粒子分层.
- 采用大量的风湿学测量来评估粒子-风湿学修饰剂相互作用.
- 集成的动态光散射来补充AFM和风病学数据.
主要成果:
- 一种多糖类加厚剂的丹,通过增加粘度和Péclet数量,在最小的粒子相互作用下,诱导了小顶层分层.
- 基于微凝的RM Carbopol 940由于pH依赖的相互作用而未能实现小顶层分层,导致横向分离或大颗粒表面丰富.
- 关联性RM HEUR10kC12表现出强烈的粒子相互作用,导致不同的结构 (小型顶部,大型增强,随机) 取决于度.
结论:
- 在体混合物中的分层可以使用弱粒子相互作用的RM来预测和控制.
- 强大的RM粒子相互作用为实现复杂涂层配方中更广泛的分层结构提供了潜力.
- 这项研究促进了对分层的理解和应用,用于开发先进的涂料.
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