血激活聚乙烯的老化和聚乙烯聚合物的疏水回收
1Department of Surface Engineering, Jozef Stefan Institute, Jamova Cesta 39, 1000 Ljubljana, Slovenia.
Polymers
|December 23, 2023
概括
激光激活聚乙烯通过疏水回收衰老,这个过程受到温度和储存的影响. 这种老化会影响涂层的附着性,而特定的处理可能会抑制这种效果.
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
- 表面化学 表面化学
背景情况:
- 关于激活乙烯老化的现有文献的综述.
- 疏水复原是影响老化聚合物表面的关键现象.
- 衰老会影响等离子体处理的聚合物的性能和应用.
研究的目的:
- 批判性地评估可用的关于激活聚乙烯衰老的文献.
- 了解疏水复原的驱动力和影响因素.
- 评估抑制老化的方法及其对涂层粘附性的影响.
主要方法:
- 文献审查和批判性评估.
- 对静态水接触角度测量的分析,以评估疏水性回收.
- 讨论表面敏感性表征技术及其局限性.
主要成果:
- 疏水回收是热力学驱动的,即使在真空中也会发生.
- 老化跟随一个月的空气对数行为;温度加快恢复.
- 储存媒介的效果是有争议的;一些方法可以抑制衰老.
结论:
- 血激活聚乙烯的老化会对涂层粘附性产生负面影响.
- 表面自由能量不是衰老或粘附的可靠指标.
- 需要进一步的研究来将表面自由能量与粘附力相关联.
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