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定制基板粘附通过柔性链架构设计在色乙烯基复合物保护涂层中

Feng Guo¹, Wei Wang², Guangtao Qian³

¹State Key Laboratory of Advanced Fiber Materials, Center for Advanced Low-dimension Materials, College of Materials Science and Engineering, Donghua University Shanghai 201620 China.

|October 22, 2025

概括

聚胺 (PIs) 为柔性包装和电池提供了优越的金属粘附性. 这些PI的分子工程创造了具有增强耐候性和粘合强度高达21.7MPa的先进材料.

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

背景情况:

聚胺 (PIs) 显示出作为高性能粘合剂的前景,特别是在金属基板上.
传统粘合剂在需要增强耐候性和薄膜集成的应用中面临局限性.

研究的目的:

通过分子工程合成和描述新型三元共聚胺 (BIBOPIs).
评估柔性二胺单体对BIBOPI物理化学性质的影响.
评估BIBOPI在先进的塑柔性包装和柔性电池应用中的潜力.

主要方法:

合成四种结构上不同的柔性二胺单体,以制造三元共聚胺 (BIBOPIs).
系统评估热力学特性,耐溶剂性,吸水性和涂层粘附性.
测量光传导率,玻璃过渡温度 (Tg) 和破裂时的延长.

主要成果:

含有4,4'-二氨基硫 (DDS) 的BIBOPI实现了高光透射率 (>73%,在800 nm达到85%).
增加灵活的以太群 (RODA) 降低了可见光透射率,但在断裂时增强了延伸 (高达33.8%).
玻璃过渡温度在332°C至410°C之间,吸水率降低,具有很好的耐溶剂性.
附着强度超过21.7MPa,在没有复杂的表面处理的情况下显示出对金属基板的增强附着性.

结论:

类乙环PI的分子工程产生了BIBOPI,具有可调节的性能,用于先进的应用.
BIBOPI为传统粘合剂提供了可行的替代品,提供了出色的粘合性,耐候性和可加工性.
开发的PI涂层使分子层面的集成成为可能,这对于下一代灵活的电子包装至关重要.

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