粘性消散能量密度作为粘合带的一般粘合特性
Kosuke Takahashi1, Masako Yamada2, Tatsuya Sasaki2
1Division of Mechanical and Aerospace Engineering, Faculty of Engineering, Hokkaido University, Kita 13, Nishi 8, Kita-ku, Sapporo, Hokkaido 060-8628, Japan. ktakahashi@eng.hokudai.ac.jp.
Soft matter
|July 14, 2025
概括
这项研究引入了粘性消耗能密度作为一个新的,独立于几何的参数,用于评估带强度. 探针接测试证实了它的有效性,提供了可靠的测量压力敏感粘合剂性能.
科学领域:
- 材料科学 材料科学 材料科学
- 粘附科学 粘附科学 粘附科学
- 聚合物科学 聚合物科学
背景情况:
- 带强度评估传统上依赖于剥离和探针粘合测试.
- 这些常规方法受到样本几何学的显著影响,包括带厚度和粘合层特性.
- 需要一个更强大的,独立于几何形状的粘附度量.
研究的目的:
- 提出并验证粘性散热能量密度作为评估带性能的新参数.
- 为了研究这种新参数与压力敏感粘合剂 (PSA) 层的拉伸率之间的关系.
- 为了比较探针接测试与剥皮测试在确定这个参数的有效性.
主要方法:
- 制备不同含量的基于的带.
- 在不同厚度的磁带上进行剥离和探针粘接测试,并以现场高速摄像头观察.
- 计算两种测试类型的分离过程中PSA层的粘附能量和最大延长.
- 定义和应用粘性消散能量密度 (粘合能量/最大延长).
主要成果:
- 来自探针测试的粘性散热能量密度,在对数尺度上与PSA层的变形速率呈现出一致的线性关系,而不论带的厚度如何.
- 这种关系在从剥皮试验数据计算时显示出更多的散射和轻微偏差.
- 与剥离试验相比,探针粘合试验提供了PSA层的更均的延长.
结论:
- 粘性消散能量密度是评估带性能的一种有效材料参数.
- 探针测试特别适合精确确定粘性散热能量密度,因为PSA层的均延长.
- 这一新参数为粘附强度评估提供了与几何无关的方法,比传统方法提高了可靠性.
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