Multi-Scenario Applications of Fluoro-Free Super Liquid-Repellent Particles Prepared Through Excluded Volume Effect

Superhydrophobic surfaces garner tremendous research attention due to their potential applications in the fields of oil–water separation membrane, self-cleaning, and anti-icing systems. However, the reported superhydrophobic materials that achieve low-surface-tension (<60 mN m−1) liquid repellency are typically prepared using perfluorinated compounds (PFCs), which pose significant risks to the natural environment and human health. Here a concept based on the excluded volume effect in polymer dilute solutions is explored to achieve a hydrophobic flexible polymer-chain wrapping of multidimensional particles, which forms a nonadherent soft-shell-hard-core structure and maintains the original structural integrity of particles. The prepared fluoro-free super-repellent multidimensional particles can be spray-coated and dip-coated on different substrates to prepare large-scale superhydrophobic coatings, which exhibit excellent low-surface-tension (42.6−50 mN m−1) liquid repellency superior to the reported fluoro-free superhydrophobic materials. Benefiting from the strong interaction of super-repellent particles with flexible polymer chains, the superhydrophobic coatings show unexpected wear resistance and durability. This first demonstration of hydrophobic polymer-wrapped particles for repelling low-surface-tension liquids provides insights into next-generation fluoro-free superhydrophobic materials.

成果名称:低表面能涂层

合作方式:技术开发

联 系 人:周老师

联系电话:13321314106

成果名称:低表面能涂层

合作方式:技术开发

联 系 人:周老师

联系电话:13321314106

成果名称:低表面能涂层

合作方式:技术开发

联 系 人:周老师

联系电话:13321314106

成果名称:低表面能涂层

合作方式:技术开发

联 系 人:周老师

联系电话:13321314106

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