High-flame-retardant oil-absorbing composite aerogel, and preparation method and application thereof
By employing a stepwise approach of adding V2C MXene and bentonite, along with vapor-phase hydrophobic modification, the contradiction between hydrophobic modification and flame retardancy in bacterial cellulose-based aerogels was resolved. This resulted in the preparation of a composite aerogel with ultra-high oil absorption capacity and high flame retardant properties, suitable for oil spill recovery and oily wastewater treatment under high-temperature and fire-risk conditions.
Patent Information
- Application Number
- CN202610640256.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-05-11
- Publication Date
- 2026-07-17
AI Technical Summary
Existing bacterial cellulose-based aerogels are prone to pore blockage during hydrophobic modification, and flame retardant components are difficult to disperse evenly, making it difficult to balance oil absorption capacity and flame retardancy, and thus failing to meet the comprehensive performance requirements of high-temperature working conditions and fire-risk areas.
By adopting a stepwise addition strategy of V2C MXene and bentonite, combined with vapor-phase hydrophobic modification, a highly flame-retardant oil-absorbing composite aerogel was prepared in an aqueous system to construct a three-dimensional interpenetrating network structure, avoiding the blockage of pores by nano-components and forming a dense protective layer at high temperature.
It achieves efficient hydrophobic modification, preservation of pore integrity, and uniform loading of flame-retardant components, and possesses ultra-high oil absorption capacity, excellent cycle stability, and high flame-retardant performance, meeting the safety requirements for use under high temperature and fire risk conditions.
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Figure CN122399773A_ABST