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) microbeads with nano-micro size mountain-like wrinkled coating on each bead, the treated paper develops a nano/microstructure with a water contact angle (WCA) of 152° ± 2° and a water sliding angle (WSA) of 7° ± 0.5°. This superhydrophobic surface retains its superhydrophobicity after 50 abrasion cycles on sandpaper and maintains its self-cleaning property with soil particles and many types of liquids. The superhydrophobic paper products have a higher tensile strength (∼6 MPa) than non-treated paper (∼2 MPa) while preserving superhydrophobicity across pH ranges 5-11. The treated papers show excellent printability and writability and retain their superhydrophobicity after printing and writing. This superhydrophobic paper can be used to create waterproof paper-based printed products and artwork.
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Samanmali et al. (2025) studied this question.
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