在Si基板上生长的聚乙烯吸附层上的中子反射性研究
Keisuke Shimokita1, Katsuhiro Yamamoto1, Noboru Miyata2
1Department of Life Science and Applied Chemistry, Gradual School of Engineering, Nagoya Institute of Technology, Gokiso-cho, Showa-ku, Nagoya 466-8555, Japan.
Langmuir : the ACS journal of surfaces and colloids
|July 16, 2024
概括
中子反射力揭示了聚乙烯薄膜接口的水积累. 在基板上化聚乙烯薄膜显示出两层吸附结构,这对于聚合物纳米复合材料的性能至关重要.
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
- 表面科学是一门学科.
背景情况:
- 了解聚合物-基板接口是先进材料的关键.
- 聚乙烯薄膜广泛用于各种应用.
- 之前的研究表明无形聚合物吸附层.
研究的目的:
- 为了研究基板上的聚乙烯薄膜的界面结构.
- 阐明聚乙烯吸附层的生长机制.
- 评估回火对接口属性的影响.
主要方法:
- 在脱聚乙烯 (dPE) 薄膜上进行中子反射率 (NR) 测量.
- 使用基板进行薄膜沉积.
- 使用热p-xylen液来分析剩余的层.
主要成果:
- 在环境条件下,在聚乙烯/接口上观察到水的积累.
- 化DPE薄膜促进了两层吸附结构的生长.
- 确定了一个内层 (3.7 nm,散密度) 和一个外层 (几个nm,生长不足).
结论:
- 这项研究阐明了在无机接口上聚乙烯吸附层的增长.
- 这些发现对于增强聚合物/无机填充剂纳米复合材料有价值.
- 通过了解界面行为,可以提高晶体聚烯在纳米复合材料中的效用.
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