Waterborne, Nanocomposite Pressure‐Sensitive Adhesives with High Tack Energy, Optical Transparency, and Electrical Conductivity
Waterborne, Nanocomposite Pressure‐Sensitive Adhesives with High Tack Energy, Optical Transparency, and Electrical Conductivity
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具有高粘能、光学透明度和导电性的水性纳米复合压敏粘合剂
DOI：
10.1002/adma.200601335
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发表时间：
2006
影响因子：
29.4
通讯作者：
P. Vandervorst
中科院分区：
文献类型：
--
作者：
Tao Wang;Chunfa Lei;A. Dalton;C. Creton;Yi Lin;K. A. S. Fernando;Ya;M. Manea;J. Asua;J. Keddie;Prof. C. Creton;Y. Sun;Asua;P. Vandervorst
压敏胶（PSA）在施加轻微压力的情况下立即牢固地粘附到几乎任何表面上，而无需共价键合或活化。[1]PSA越来越多地用于要求苛刻的应用，例如电子组件中的互连。[2]PSA的脱粘通过空化过程[3，4]发生，随后是空腔膨胀以产生在牵引中延伸的原纤维[5]。这些过程有助于粘附的能量，E a。[6，7]为了成为有效的PSA，材料必须既不太硬也不太液态，并且必须在变形中消耗大量能量。在这里，我们表明，将碳纳米管（CNT）添加到PSA中使其更硬，但更具耗散性，这是一种理想的，但不寻常的组合。CNT赋予PSA导电性，同时使E a增加85%并保持光学透明度。
Pressure-sensitive adhesives (PSAs) adhere instantly and firmly to nearly any surface under the application of light pressure, without covalent bonding or activation. [1] PSAs are increasingly used for demanding applications, such as intercon-nects in electronic assemblies. [2] The debonding of PSAs occurs by a cavitation process [3,4] followed by cavity expansion to create fibrils [5] that extend in traction. These processes contribute to the energy of adhesion, E a . [6,7] To be an effective PSA, a material must be neither too stiff nor too liquid, and it must dissi-pate significant energy in deformation. Here, we show that the addition of carbon nanotubes (CNTs) to a PSA makes it stiffer yet more dissipative, which is an ideal, yet unusual, combination. The CNTs impart electrical conductivity to the PSAwhile increasing E a by 85% and retaining optical transparency.