What question did this study set out to answer?

To synthesize a durable, self-healing coating capable of repelling both water and low-surface-tension oils when applied to fabric substrates.

Durable, Self‐Healing Superhydrophobic and Superoleophobic Surfaces from Fluorinated‐Decyl Polyhedral Oligomeric Silsesquioxane and Hydrolyzed Fluorinated Alkyl Silane

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Experimental study demonstrates durable self-healing liquid repellency in fabrics, indicating practical utility for protective textiles.

To synthesize a durable, self-healing coating capable of repelling both water and low-surface-tension oils when applied to fabric substrates.
Dissolved fluorinated-decyl polyhedral oligomeric silsesquioxane (FD-POSS) in hydrolyzed fluorinated alkyl silane (FAS) dispersed in ethanol, then dip-coated polyester, cotton, and wool fabrics followed by thermal curing at 135 °C for 30 minutes.
Evaluated static contact angles across liquids of varying surface tensions and assessed durability through 24-hour acid/base immersion, 24-hour UV irradiation, 200 machine wash cycles, and Martindale abrasion testing up to 6000 cycles.
Induced surface damage using air plasma and strong base (pH 14 KOH), testing self-healing recovery after heat treatment (135 °C for 3 minutes) or room-temperature storage for 24 hours.
Pristine coated polyester displayed super-repellency with contact angles of 171° for water, 155° for hexadecane, and 152° for tetradecane, maintaining super-repellency for liquids with surface tensions above 26.5 mN m⁻¹.
Plasma-damaged coatings repeatedly recovered superhydrophobicity through 100 plasma-and-heat cycles and maintained hexadecane contact angles greater than 150° for over 40 cycles.
Liquid-repellent performance showed zero degradation after 24 hours of UV irradiation, 24 hours in pH 1 sulfuric acid, 200 standard machine wash cycles, or 6000 Martindale abrasion cycles.

Wang et al. (2011) studied this question.

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View Full Paper

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Authors

Experimental study demonstrates durable self-healing liquid repellency in fabrics, indicating practical utility for protective textiles.

To synthesize a durable, self-healing coating capable of repelling both water and low-surface-tension oils when applied to fabric substrates.
Dissolved fluorinated-decyl polyhedral oligomeric silsesquioxane (FD-POSS) in hydrolyzed fluorinated alkyl silane (FAS) dispersed in ethanol, then dip-coated polyester, cotton, and wool fabrics followed by thermal curing at 135 °C for 30 minutes.
Evaluated static contact angles across liquids of varying surface tensions and assessed durability through 24-hour acid/base immersion, 24-hour UV irradiation, 200 machine wash cycles, and Martindale abrasion testing up to 6000 cycles.
Induced surface damage using air plasma and strong base (pH 14 KOH), testing self-healing recovery after heat treatment (135 °C for 3 minutes) or room-temperature storage for 24 hours.
Pristine coated polyester displayed super-repellency with contact angles of 171° for water, 155° for hexadecane, and 152° for tetradecane, maintaining super-repellency for liquids with surface tensions above 26.5 mN m⁻¹.
Plasma-damaged coatings repeatedly recovered superhydrophobicity through 100 plasma-and-heat cycles and maintained hexadecane contact angles greater than 150° for over 40 cycles.
Liquid-repellent performance showed zero degradation after 24 hours of UV irradiation, 24 hours in pH 1 sulfuric acid, 200 standard machine wash cycles, or 6000 Martindale abrasion cycles.

Wang et al. (2011) studied this question.

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