Pressure-sensitive adhesives: An introductory course
Pressure-sensitive adhesives: An introductory course
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DOI：
10.1557/mrs2003.124
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发表时间：
2003-06-01
期刊：
影响因子：
5
通讯作者：
Creton, C
中科院分区：
文献类型：
--
作者：
Creton, C
不干胶材料在胶粘剂行业中被称为“压敏胶粘剂”(PSA)。PSA被设计成在轻压下通过简单的接触粘在几乎任何表面上。这种特殊类型的粘合剂在粘接过程中不会发生任何物理变化或化学反应。正因为如此，粘合剂的流变性必须针对应用进行微调，将精心选择的聚合物结构和单体组成与适当添加的称为增粘树脂的小分子相结合。PSA是柔软的、可变形的固体，根据配方的不同，在脱粘时很容易在两个表面之间形成桥联纤维。它们使用安全，易于操作，因此正在越来越多地取代更传统类型的粘合剂。在这篇文章中，我们回顾了PSA的主要材料特性和使其有效工作的主要物理原理。
Self-adhesive materials are called, in the adhesives trade, "pressure-sensitive adhesives" (PSAs). PSAs are designed to stick on almost any surface by simple contact under light pressure. This special class of adhesives does not undergo any physical transformation or chemical reaction during the bonding process. Because of this, the rheological properties of the adhesive must be finely tuned for the application, combining a carefully chosen polymer architecture and monomer composition with the proper addition of small molecules called tackifying resins. PSAs are soft, deformable solids and depending on the formulation, easily form bridging fibrils between two surfaces upon debonding. They are safe to use and easy to handle and thus are increasingly replacing more conventional types of adhesives. In this article, we review both the primary material characteristics of PSAs and the main physical principles that make them work effectively.