一种基于双界面工程策略构建的高性能MXene / Yb2O3 / 聚酰亚胺复合薄膜及其制备方法与应用
By employing pH-controlled electrostatic self-assembly and covalent grafting of silane coupling agents in a polyimide matrix, the problem of uniform dispersion and stable bonding of MXene nanosheets in polyimide was solved, achieving high-performance electromagnetic shielding and improved mechanical properties, making it suitable for high-frequency communication, flexible electronics, aerospace, new energy vehicles and other fields.
CN122404977APending Publication Date: 2026-07-17INNER MONGOLIA UNIV OF SCI & TECH
Patent Information
- Application Number
- CN202610537514.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-04-22
- Publication Date
- 2026-07-17
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Figure CN122404977A_ABST
Abstract
本发明提供一种基于双界面工程策略构建的高性能MXene / Yb2O3 / 聚酰亚胺复合薄膜及其制备方法与应用。针对现有MXene基材料界面结合弱、功能相易团聚等问题，本发明采用静电自组装和共价桥联双界面协同设计构建MXene / Yb2O3 / PI三元复合体系：将Ti3C2Tx型MXene纳米片与Yb2O3纳米颗粒分别分散于去离子水中形成悬浮液，通过pH调控的静电自组装构建一级异质界面，解决稀土氧化物Yb2O3极易团聚、与MXene片层界面相容性差的行业难点；通过引入硅烷偶联剂构建二级共价桥联界面，强化无机功能相与有机PI基体的界面结合力。所得复合薄膜在25μm超薄厚度下，X波段电磁屏蔽效能最高达到56.2dB，拉伸强度在86MPa以上，能适用于对材料性能要求较高的高频电子器件、柔性电磁屏蔽材料及航空航天领域，应用前景广阔。
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Citation Information
Patent Citations
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