“…Currently, there are various methods for preparing hydrophobic paper‐based materials, including but not limited to spray coating (Todorova et al., 2022), impregnation (He et al., 2022), uniform coating with a coating machine (Chungsiriporn et al., 2022; Kunam et al., 2023), layer‐by‐layer self‐assembly technology (Dai et al., 2021; Peng et al., 2016), solution casting technology (Koppolu et al., 2019), supercritical solution rapid expansion technology (Beheshtimaal & Hutton‐Prager, 2022), chemical grafting modification method (Li et al., 2015), plasma treatment (Dimitrakellis et al., 2017), phase separation method (Li, Boban et al., 2021), chemical etching method (Tang et al., 2022), and laser etching (Fan et al., 2022). Additionally, there are other methods to precisely control the thickness and uniformity of hydrophobic surface coatings, such as atom transfer radical polymerization (Wu et al., 2018), electrospinning (Ding et al., 2023), and chemical vapor deposition (Ma et al., 2022), among others.…”