A method for removing green glue on surface of UHMWPE fiber by ion liquid-supercritical CO2 synergism
By using the synergistic effect of ionic liquids and supercritical CO2, the problem of efficient removal of adhesive from the surface of UHMWPE fibers was solved, enabling efficient and environmentally friendly fiber reuse while maintaining good fiber performance. The solvent is regenerable, and production costs are reduced.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- GUANGDONG XIONGSU TECH GRP CO LTD
- Filing Date
- 2026-06-16
- Publication Date
- 2026-07-17
AI Technical Summary
Existing technologies struggle to efficiently remove thermosetting epoxy adhesive layers from the surface of UHMWPE fibers without damaging their intrinsic properties. Traditional methods suffer from environmental pollution, low efficiency, fiber damage, or high costs.
A method combining ionic liquids and supercritical CO2 is employed to achieve efficient removal of thermosetting epoxy adhesive layers through pre-swelling of composite ionic liquids and mechanical exfoliation by ultrasonic cavitation force, combined with the physical swelling effect of supercritical CO2.
It achieves efficient removal of thermosetting epoxy adhesive layers with an adhesive removal rate of over 95%, maintains good fiber properties, is environmentally friendly, uses renewable solvents, and significantly reduces production costs.
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