Thermally-responsive dismantlable adhesion system for steel plates using methacrylate copolymers containing a tert-butoxycarbonyl group

IF 3.2 3区材料科学 Q2 ENGINEERING, CHEMICAL International Journal of Adhesion and Adhesives Pub Date : 2024-10-02 DOI:10.1016/j.ijadhadh.2024.103846

Kaito Ichiwara , Yoshiyuki Kamo , Yasuhito Suzuki , Akikazu Matsumoto

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Abstract

A drastic change in the bulk properties of adhesive materials as well as a reduction of interfacial interaction is an important key for the development of dismantlable adhesion systems, i.e., reliable bonding systems with a function of on-demand debonding. The deprotection of tert-butoxycarbonyloxy (BOC) groups included in adhesive polymers can be applied to the construction of a dismantlable adhesion system for steel plates combined with acrylic and epoxy adhesives. In this study, we evaluated the adhesive properties of the copolymers of 2-(tert-butoxycarbonyloxy)ethyl methacrylate (BHEMA), glycidyl methacrylate (GMA), and 3-trimethoxysilylpropyl methacrylate (SMA) for the dismantlable bonding of steel plate cold commercial (SPCC). Spontaneous dismantling of the SPCC adhesive structures was achieved after heat treatment under the conditions at 210 °C for 15 min when the BHEMA/GMA/SMA copolymers with an appropriate copolymer composition were used as the acrylic adhesives or the primers for epoxy adhesion. We discuss the interfacial interactions between the adherend and the adhesives for reliable adhesion and the effects of the deprotection of the BOC groups for dismantling to exhibit both an adhesion strength required for metal bonding and a rapid decrease in the strength by thermal stimulus.

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使用含有叔丁氧羰基的甲基丙烯酸酯共聚物的钢板热响应可拆卸粘合系统

粘合材料体积特性的急剧变化以及界面相互作用的减少是开发可拆卸粘合系统（即具有按需拆卸功能的可靠粘合系统）的重要关键。对粘合剂聚合物中的叔丁氧羰酰氧基（BOC）基团进行脱保护，可用于构建与丙烯酸和环氧粘合剂相结合的钢板可拆卸粘合系统。在这项研究中，我们评估了 2-（叔丁氧羰基氧基）乙基甲基丙烯酸酯（BHEMA）、甲基丙烯酸缩水甘油酯（GMA）和 3-三甲氧基硅丙基甲基丙烯酸酯（SMA）共聚物在钢板冷商业（SPCC）可拆卸粘接中的粘接性能。将具有适当共聚物成分的 BHEMA/GMA/SMA 共聚物用作丙烯酸粘合剂或环氧树脂粘合剂的底漆时，在 210 °C 的条件下热处理 15 分钟后，SPCC 粘合结构可实现自发拆解。我们讨论了被粘物和粘合剂之间为实现可靠粘合而产生的界面相互作用，以及 BOC 基团脱保护拆解对金属粘合所需的粘合强度和热刺激导致的强度快速下降所产生的影响。

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来源期刊

International Journal of Adhesion and Adhesives 工程技术-材料科学：综合

CiteScore

6.90

自引率

8.80%

发文量

200

审稿时长

8.3 months

期刊介绍： The International Journal of Adhesion and Adhesives draws together the many aspects of the science and technology of adhesive materials, from fundamental research and development work to industrial applications. Subject areas covered include: interfacial interactions, surface chemistry, methods of testing, accumulation of test data on physical and mechanical properties, environmental effects, new adhesive materials, sealants, design of bonded joints, and manufacturing technology.