Testing to industry standards provides repeatable methods for comparison and quality assurance purposes. Test methods may have small nuances that can lead to different results if they do not receive proper attention. An understanding of some of the problems that can occur with common industry standards helps minimize and eliminate these factors. Today we are going to take a look at testing for the ASTM D 3330 standard.
ASTM D 3330是用于剥离压力敏感胶带粘附的标准测试方法。该测试标准包含方法A-F,用于质量保证。这些方法用于将压力敏感胶带与特定要求的性能进行比较,以确定测量的键强度是否可以接受。从该方法获得的值可用于比较卷之间或批次之间的单卷胶带的值。
Test method A, B, C, E and F can show the relative bond strength of a given tape to one or more surfaces (material and texture) compared to a standard stainless steel panel. Substitution of representative samples of materials in question for the standard steel panel would suffice to do this. Test method D can show the amount of force required to remove a liner that covers the adhesive side of a tape at a specified peel rate.1
该测试标准的常见问题之一是选择正确的测试方法。用户必须考虑正在测试哪种类型的胶带以及他们希望确定的粘附值。由于此标准中的每个过程都略有不同,因此如果选择错误的方法,则可能会错误地执行一个重要的步骤,例如滚子通过的数量或将胶带应用于测试面板的方式。
胶带的测试面板应用cause problems if the proper specifications are not followed. The standard calls for a stainless steel panel with a specified surface roughness. Cleaning the plates is an important step in the test panel preparation. The test panels for these test methods need to be washed three times with one of the specified solvents prior to specimen adhesion. Ensuring that the correct surface finish and cleaning techniques are used will help minimize any effects from a dirty or rough test panel.
准备好测试面板后,必须遵循将胶带应用于面板的程序。在将磁带应用于测试面板期间,遵循测试标准中列出的正时参数很重要。这些参数中有两个要注意,这是从放松磁带卷到应用程序以及从应用到测试的时间的经过的时间。对于某些磁带,随着停留时间的增加,剥离粘附可能会增加。用于涂抹胶带的滚筒也很重要。由于该标准与压敏粘合剂有关,因此滚子的重量和表面至关重要。如果滚筒的表面不是完美的圆柱形,则不会均匀地粘附胶带,从而导致数据不准确。
参考
1。ASTMInternational,www.astm.org。