1:广东工业大学材料与能源学院
摘要(Abstract)：
聚合物薄膜应用前景广阔，但由于聚合物薄膜韧性较强难以制备样品截面的特点使其在SEM研究中存在一定的挑战，同时不同韧性聚合物薄膜的SEM截面样品制样的试验条件存在显著差异。为此，针对截面样品制备难题，建立了一套基于简易工具(手术刀、剪刀、镊子)的SEM截面制样方法：对韧性较强的聚丙烯隔膜(PP),采用手术刀划切、剪刀裁剪结合镊子撕裂的组合操作，配合液氮脆断预处理可实现完整截面制备；对脆性较强的聚醚砜微孔滤膜(PES),液氮环境中直接脆断或手术刀+镊子、剪刀+镊子复合操作可获优质SEM形貌，常温下同类操作亦可满足需求。对比2种材料的成像效果，证实工具组合(刀具类型与操作方式)需与材料韧性性能适配：高韧性材料需低温脆化降低形变抗力，低脆性材料则通过精准切割避免结构破坏。该制样方法快速高效无需依赖高成本精密设备即可获得清晰的聚合物SEM截面，为膜材料微观结构分析提供了经济高效的解决方案。
关键词(KeyWords)： 聚合物薄膜;物性结构;材料韧性性能
基金项目(Foundation): 教育部高等教育司产学合作协同育人项目(2024年07月批次);; 广东工业大学2024年度实验教学与管理改革研究专项(202409);; 2023年度广东工业大学校级实验教学示范中心项目(202304)~~
作者(Author): 李海霞,武丹婷,刘鹏,张留艳,殷陶,杨亿斌,招瑜
DOI: 10.26935/j.issn.2097-5317.2025.0020
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