仿生毛竹秆茎超疏水表面的制备及防覆冰性能

Fabrication of Bioinspired Bamboo Culm Superhydrophobic Surface Using Templating Method for Anti-icing

以天然多尺度结构毛竹秆茎超疏水表面为模板,采用软模板复型和植物蜡表面疏水改性技术简易构筑仿生超疏水表面.对毛竹秆茎表面的微纳米结构和化学组成进行了表征,并探索了仿生毛竹秆茎超浸润表面超疏水和防覆冰性能.结果表明,制备的毛竹秆茎表面展现出超疏水、低黏附、自清洁特性,这些特性主要是由其表面山丘状微米结构和疏水性植物蜡协同作用决定的.同时,在低温条件下仿生毛竹秆茎超疏水表面表现出延迟结冰性能.

Based on the natural template of the bamboo culm(Phyllostachys edulis)with multi-scale structures,a biomimetic superhydrophobic surface(SHS)of bamboo stems was successfully fabricated using a fusion strategy of templating method and hydrophobic modification technique with plant wax.The resulted biomimetic material surface of the prepared bamboo culm exhibits superhydrophobic,low adhesion,and self-cleaning characteristics.The research results indicate that the bioinspired SHS of bamboo culm is determined by the synergistic effect of the hill-like microstructure and plant wax with nanoscale laminar structure.Moreover,the SHS possesses the delayed freezing performance under low temperature conditions.