贝类灵感压力敏感粘合剂的Redox触发解锁:通过功能设计提高效率
Tilmann J Neubert1,2, Keven Walter1, Carolin Schröter1
1Department of chemistry, Humboldt-Universität zu Berlin, Unter den Linden 6, 10117, Berlin, Germany.
Angewandte Chemie (International ed. in English)
|July 29, 2024
概括
新的可拆卸粘合剂为微电子产品提供了增强的可回收性. 一种生物相关的粘合剂实现了99%的脱效率,超过了基于化石的替代品.
科学领域:
- 材料科学 材料科学 材料科学
- 聚合物化学 聚合物化学
- 可持续技术 可持续技术
背景情况:
- 压力敏感粘合剂 (PSA) 在微电子中至关重要,但阻碍了可回收性.
- 开发可拆卸的粘合剂是电子行业循环经济的关键.
- 醇-甲基醇-连接性 (TCC) 提供了一条可逆粘合粘合的途径.
研究的目的:
- 综合和评估基于TCC的两个新型可分析的PSA.
- 为了比较生物相关 (BY*Q) 和基于化石 (BQA) 的PSA的解锁效率.
- 了解化学结构如何影响解锁性能.
主要方法:
- 合成两个具有TCC链接的四价星聚PSA.
- 加入二多巴双 (BY*Q) 或双A (BQA).
- 通过氧化后的剪切强度测量来评估解效率.
主要成果:
- 在BY*Q-TCC-PSA表现出了特殊的解接,失去了99%的剪切强度.
- 在BQA-TCC-PSA显示较低的解锁效率 (约. 60%),尽管它的初始强度可调到7 MPa.
- BY*Q-TCC-PSA解锁是由于失去了协同作用的相互作用,从而保留了散装特性.
结论:
- 基于TCC的可拆解PSA对于微电子可回收性是可行的.
- 生物相关的BY*Q-TCC-PSA在解效率方面明显优于基于化石的BQA-TCC-PSA.
- 定制TCC-motif化学是优化可拆卸粘合剂性能的关键.
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