Superhydrophobic Coatings with Edible Biowaxes for Reducing or Eliminating Liquid Residues of Foods and Drinks in Containers

Peng Wang, Xueren Qian, Jing Shen

Abstract


Biowaxes, including carnauba wax and beeswax, are edible and renewable. Once dispersed in a polar solvent, these natural materials could be easily converted into nontoxic, “roll-off”, and superhydrophobic coatings on the basis of spray coating. The combination of container materials with these coatings can reduce or even eliminate liquid resides (including highly viscous residues) of foods and drinks in containers (e.g., bottles), significantly facilitating downstream operations. Comprehensive demonstrations of this green concept would generate huge opportunities for food/drink-related industries.

Keywords


Carnauba wax; Beeswax; Edible materials; Superhydrophobic coating

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