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具有高拉伸性结合聚合物/弹性体混合膜,具有三明治结构

Ru Qin¹, Yin Wu¹, Zicheng Ding¹

¹Key Laboratory of Applied Surface and Colloid Chemistry, National Ministry of Education, Shaanxi Key Laboratory for Advanced Energy Devices, Shaanxi Engineering Lab for Advanced Energy Technology, Institute for Advanced Energy Materials, School of Materials Science and Engineering, Shaanxi Normal University, Xi'an, 710119, China.

Macromolecular rapid communications

|June 8, 2023

概括

研究人员在合聚合物 (PCDTFBT) 和弹性体 (SEBS) 混合膜中创建了一个新的三明治结构. 这种结构增强了柔性,并在拉伸过程中最大限度地降低了电气降解,提高了性能.

科学领域:

材料科学材料科学材料科学
聚合物科学聚合物科学
有机电子有机电子

背景情况:

联合聚合物和弹性体的物理混合为高性能可拉伸膜提供了一条途径.
了解压力下的这些混合物的形态控制和断裂行为至关重要,但有限.

研究的目的:

为了研究特定微观结构对结合聚合物/弹性体混合膜的机械和电气性能的影响.
开发一种方法来提高可拉伸电子材料的柔性和稳定性.

主要方法:

使用聚[(5--2,1,3-二 diazole-4,7-diyl) ((4,4-dihexadecyl-4H-cyclopenta[2,1-b:3,4-b′′]dithiophene-2,6-diyl) ((6-fluoro-2,1,3-benzothiadiazole-4,7-diyl) ((4,4-dihexadecyl-4H-cyclopenta[2,1-b:3,4-b′′]dithiophene-2,6-diyl) ] (PCDTFBT) 和聚烯-块-聚乙烯-兰-丁烯-块-聚乙烯 (SEBS) 的三明治结构的制造.
混合膜形态的表征及其对机械拉伸的反应.
评估裂纹发生应变和电性能降低的情况.

主要成果:

一个由中央混合层和外部PCDTFBT丰富层组成的三明治结构已成功构建.
该结构通过变形和再结晶有效地消散了应变能量,从而产生了极好的延展性.
混合膜表现出很大的裂纹发作应变 (>1100%),在高应变时电气降解最小化.

结论:

操纵结合聚合物/弹性聚合物混合物的微结构是改善其电气和机械性能的关键.
开发的三明治结构提供了一个有前途的策略,用于创建坚固和高性能可拉伸电子膜.
这种方法推进了灵活电子产品中高级功能材料的设计原则.

关键词:

骨折机制的破裂机制是什么微观结构的演变.阶段分离形态的分离形态.可伸缩的合聚合物薄膜.

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