Superhydrophobic fibers based on hierarchically hollow structured surface were prepared for the first time via in-situ growth on polyester, filaments-on-spheres (SF) structures, filaments-and-spheres-on-spheres (FASS) structures and spheres-on-spheres (SS) structures were constructed, exhibiting excellent superhydrophobicity with water contact angles of 158.7 ± 3.4°, 158.5 ± 0.9°, 152.7 ± 3.6° and sliding angles of 1.0 ± 0.7°, 2.3 ± 0.4°, 4.5 ± 0.6°, respectively. More than that, extremely low adhesive force of 74.48 μN was attained. The mechanism of in-situ formation of hollow hierarchical structures on polyester was proposed, and surface chemistry was verified by carrying out X-ray photoelectron spectroscopy and Fourier transform infrared spectroscopy. Moreover, the effect of water absorption on the hydrolysis of chlorosilane was also investigated, showing that wet fabric soaking in solution was of pivotal importance to the hydrolysis condensation polymerization and as-obtained hierarchical structures.

首次通过在聚酯上原位生长、长丝对球（SF）结构、长丝和球对球（FASS）结构和球上制备了基于分级中空结构表面的超疏水纤维。构建了球体（SS）结构，表现出优异的超疏水性，水接触角分别为 158.7±3.4°、158.5±0.9°、152.7±3.6°，滑动角分别为 1.0±0.7°、2.3±0.4°、4.5±0.6。 . 不仅如此，还获得了 74.48 μN 的极低粘附力。提出了在聚酯上原位形成空心分级结构的机理，并通过X射线光电子能谱和傅里叶变换红外光谱验证了表面化学。而且，