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Updated: May 8, 2026

Facile Preparation of Internally Self-assembled Lipid Particles Stabilized by Carbon Nanotubes
Published on: February 19, 2016
Synergistic stabilization of beeswax Pickering emulsions by oxidized cellulose/TiO2 for hydrophobic and UV-resistant
Wanting Chang1, Bingyang Liu1, Pingzhang Yao2
1Plant Fiber Material Science Research Center, State Key Laboratory of Pulp and Paper Engineering, School of Light Industry and Engineering, South China University of Technology, Guangzhou, 510640, PR China; Guangdong Provincial Key Laboratory of Plant Resources Biorefinery, Guangzhou, 51006, PR China.
Abstract:
This study reports the development of a beeswax-based Pickering emulsion stabilized by TEMPO-oxidized cellulose nanofibers (TCNF) and titanium dioxide nanoparticles (TiO2) as co-stabilizers, aimed at fabricating multifunctional coatings with enhanced hydrophobicity and UV-shielding performance. By systematically varying the TCNF: TiO2 mass ratio (1:0 to 1:4), the structural characteristics of the composite stabilizers, emulsion stability, rheological behavior, and coating functionality were comprehensively evaluated. The results revealed a synergistic stabilization mechanism: TCNF imparted steric hindrance and electrostatic repulsion to suppress droplet coalescence, while TiO2 reinforced interfacial mechanical integrity and contributed intrinsic UV-blocking capacity. At a TCNF: TiO2 ratio of 1:3, the emulsion exhibited optimal comprehensive properties, including high emulsification efficiency, long-term storage stability (30 days), strong interfacial film formation, and a water contact angle exceeding 120° after coating application. Furthermore, the incorporation of TiO2 significantly improved the UV shielding performance of the coating in both UVA and UVB regions, whereas TCNF reinforced the tensile strength of the paper substrate via hydrogen bonding and three-dimensional network formation. Overall, this work establishes a sustainable strategy for the functionalization of cellulose-based materials and highlights the potential of bio-inorganic composite Pickering emulsions in eco-friendly packaging, specialty papers, and green protective coatings.
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