烟用拉线粘接性能的测试方法

Method for Testing Binding Property of Tear-tape

为研究烟用拉线粘接性能的测试方法,分析了初粘性、持粘性、水平剥离强度、90°剥离强度、180°剥离强度等粘接性能测试方法的基本原理,对水平剥离强度、90°剥离强度和180°剥离强度测试方法进行了比较。结果表明:初粘性、水平剥离强度均不适用于拉线粘接性能的测试;持粘性测试方法需要时间较长,不适宜作为拉线粘接性能优劣的判定手段;180°剥离强度测试结果离散度小,变异系数为3.5%,优于90°剥离强度测试方法,且测试方法科学合理、数据稳定、适用性强,可以作为表征烟用拉线粘接性能的测试方法。

To study the testing method for binding property of tear-tape, the basic principles of the methods for testing initial tackiness, persistent tackiness, horizontal peel strength, peel strength at an angle of 90° or 180° were analyzed, and the methods of testing horizontal peel strength, 90° peel strength, 180° peel strength were compared. The results showed that： 1）methods of testing initial tackiness and horizontal peel strength were not suitable for testing the binding property of tear-tape; 2）method of testing persistent tackiness was not appropriate to evaluating the binding property of tear-tape because of longer testing duration; 3）the results of 180° peel strength tests were of low dispersion with a coefficient of variation of 3.5%, lower than those of 90° peel strength test. It suggested that 180° peel strength test method was stabler and more applicable to the characterization of the binding property of tear-tape.