一种基于动态网络重构制备热固性聚酰亚胺复合材料的方法
By employing dynamic network reconstruction and temperature-driven wetting techniques, the processing difficulty and interfacial compatibility issues of thermosetting polyimide composites have been resolved, enabling the low-temperature preparation of high-strength, chemically resistant composite materials suitable for aerospace and other fields.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- HARBIN INST OF TECH
- Filing Date
- 2025-06-13
- Publication Date
- 2026-07-17
AI Technical Summary
Existing thermosetting polyimide composite materials suffer from problems such as high processing difficulty, high energy consumption, high material brittleness, and poor interfacial compatibility with carbon fibers during preparation.
A dynamic network reconstruction method was adopted to achieve reversible dissociation and reconstruction of polymer networks through heating/cooling cycles. By combining temperature-driven wetting and pressure-temperature synergistic processes, a low-temperature sol state was prepared to wet carbon fibers, which then formed a high-temperature stable covalent network.
It reduces processing temperature and equipment energy consumption, improves material toughness and interfacial strength, is suitable for low-cost mass production of carbon fiber prepregs, and has excellent chemical corrosion resistance.
Smart Images
Figure CN120535792B_ABST