Bio-based fluoride-free oil-proofing agent and preparation process thereof

By combining polyhydroxy fatty acid esters, cellulose nanocrystalline-zein complex and chitosan, a bio-based fluorine-free anti-oil agent is prepared, which solves the problem of difficult degradation and harmful health of existing fluorine-containing anti-oil agents, and achieves efficient oil-proof performance and good biocompatibility.

CN119531177AActive Publication Date: 2025-02-28ZHUHAI BONNY ENVIRONMENTAL TECH CO LTD
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Patent Information

Application Number
CN202411768937.3
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2024-12-04
Publication Date
2025-02-28
Estimated Expiration
2044-12-04
Patent Text Reader

Abstract

The invention discloses a bio-based fluoride-free oil-proof agent and a preparation process thereof, and relates to the technical field of oil-proof agents. Chitosan is a natural polysaccharide and has good biodegradability and certain waterproof and oil-proof performance. Through the cross-linking effect of chitosan and sodium alginate, a stable composite system is formed, and the filling effect of the cellulose nanocrystal-zein compound is combined, so that the oil-proof effect of the oil-proof agent is improved. The oil-proof agent changes the hydrophobicity of the surface of the paper, so that oil drops are not easy to adhere or permeate. The carnauba wax emulsion is also added into the oil-proof agent, and the carnauba wax emulsion provides excellent hydrophobicity, so that the oil-proof effect is ensured to be more durable. The zein and the cellulose nanocrystals are compounded to prepare the cellulose nanocrystal-soybean protein compound, and the hydrophobicity of the cellulose nanocrystals is improved, so that oil drops are not easy to adhere or permeate.
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Citation Information

Patent Citations

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