Studies on Functional Pressure-sensitive Adhesives

功能性压敏胶的研究

基本信息

批准号：
11650927
负责人：
INAGAKI Norihiro
金额：
$ 2.3万
依托单位：
Shizuoka University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1999
资助国家：
日本
起止时间：
1999 至 2000
项目状态：
已结题

项目摘要

The influence of the surface modification of pressure-sensitive adhesive tapes on their adhesion behavior has been investigated. PBA [poly (butyl acrylate)] and PIB [poly (isobutylene)] adhesives were chosen as pressure-sensitive adhesives. Nitrogen and oxygen plasmas were used for the surface modification of the adhesives. The nitrogen plasma treatment showed large effects on the adhesion behavior of both the PBA and the PIB adhesives : The nitrogen plasma treatment led to decrease in the peel force for the PBA adhesive/stainless steel joint by 57 times, and increase for the PIB adhesive/stainless steel joint by 2.2 times. There are essential differences in the modification reactions caused by the nitrogen plasma between the PBA and PIB adhesives. Cross-linking reactions occurred in the PBA system, and on the other hand, degradation reactions occurred in the PIB system.The oxygen plasma treatment led to the formation of functional groups such as various carbonyl groups. The carbonyl formation was restricted to the topmost layer (50-300 nm) form the surface. The peel strength was closely related to the amount of carbonyl groups on the surface.From these results, we can conclude that surface modification of pressure-sensitive adhesive by plasmas can widely alter the adhesion behaviors. The details of the results were presented in the Symposium on Adhesion, which was held in New Orleans, on Aug.26, 1999. Also the details were published in Journal of Adhesion Science ＆ Technology, vol.13, p.573-592 (1999) and Journal of Applied Polymer Science, vol.78, p.1392-1401 (2000).

研究了压敏胶带表面改性对其粘合行为的影响，选择 PBA [聚丙烯酸丁酯] 和 PIB [聚异丁烯] 粘合剂作为氮和氧等离子体。用于粘合剂表面改性的氮等离子体处理对 PBA 和 PIB 粘合剂的粘合行为显示出很大的影响：氮等离子体处理导致剥离力降低。 PBA粘合剂/不锈钢接头增加57倍，PIB粘合剂/不锈钢接头增加2.2倍。PBA和PIB粘合剂之间由氮等离子体引起的改性反应有本质区别。 PBA体系中发生降解反应，而PIB体系中发生降解反应。氧等离子体处理导致各种羰基等官能团的形成，羰基的形成仅限于最上层。（50-300 nm）形成表面。剥离强度与表面羰基的数量密切相关。从这些结果，我们可以得出结论，压敏粘合剂的表面改性可以广泛改变粘合行为。详细结果发表在1999年8月26日于新奥尔良举行的Symposium on Adhesion上。详细结果发表在Journal of Adhesion Science & Technology, vol.13, p.573-592 (1999) 和《应用高分子科学杂志》，第 78 卷，第 1392-1401 页 (2000)。