ISO 11897 热塑性塑料软质薄膜制作的包装袋和边缘折叠处撕裂扩张
标准ISO 11897试验方法是用来研究热塑性软质薄膜材料制作的塑料袋边缘折叠处抗撕裂性能。该方法适用于很多材料，包括软质和硬质材料制作的薄膜和薄片。
原则上，试件应该严格的夹装在夹具中心处。以恒定的位移速率将试件拉断。裂缝贯穿整个试件未裂区域的过程中，载荷被记录下来用于计算材料的抗撕裂性能。
利用螺纹平推夹具和橡胶包覆夹面的气动夹具将材料夹紧在拉伸试验机上。该测试系统是单柱或双立柱的试验机。利用如Bluehill® 2之类的测试软件输入试件详细数据、设定合适的测试控制参数、自动计算需要的结果和统计以及生成符合标准的测试报告。
建议重新通读ISO 11897 以便完全理解实验设备和结果要求。
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