制样方法对薄膜拉伸性能检测结果的影响研究

摘要

通过显微镜观测、原理解析和实测比对，对薄膜拉伸试验中常用的冲切和划切（切割）制样方法及其对检测结果的影响进行了对比分析和验证。结果表明，冲切制样方法不适用于薄膜拉伸试验。%Through the microscopic observation, preparation principle analysis, and comparison between samples prepared by punching or cutting methods, it was concluded that the cutting methods was not suitable for tensile test of plastic film.