Facile preparation and property analyses of L-CNC/SiO₂-based composite superhydrophobic coating

Abstract

In recent years, superhydrophobic coatings have received extensive attention due to their functions of waterproof, antifouling, self-cleaning, etc. However, wide applications of superhydrophobic coatings are still affected by their disadvantages of complex preparation, low mechanical properties, and poor ultraviolet (UV) resistance. In this study, cellulose nanocrystal containing a small amount of lignin (L-CNC)/SiO₂ composite particles were used as the main material, polydimethylsiloxane (PDMS) as the adhesive and perfluorooctyltrichlorosilane (FOTS) as the modifier to prepare superhydrophobic coatings by a one-step spray method. The resulted coating showed excellent superhydrophobicity (water contact angle (WCA) of 161° and slide angle (SA) of 7°) and high abrasion resistance (capable of withstanding 50 abrasion cycles under the load of 50 g). Moreover, it still maintained good superhydrophobicity after 5 h of exposure to the UV light (1000 W), displaying its good UV resistance. This study provides theoretical and technical reference for the simple preparation of organic‒inorganic composite superhydrophobic coatings with high abrasion resistance and good UV resistance, which is beneficial to improving the practicability and broadening the application scope of superhydrophobic coatings.

Graphical abstract

Keywords

superhydrophobic coating / L-CNC/SiO₂ / abrasion resistance / UV resistance

References

[1] Vazirinasab E, Jafari R, Momen G . Application of superhydrophobic coatings as a corrosion barrier: a review.Surface and Coatings Technology, 2018, 341: 40–56

[2] Latthe S S, Sutar R S, Kodag V S, . Self-cleaning superhydrophobic coatings: potential industrial applications.Progress in Organic Coatings, 2019, 128: 52–58

[3] Abad S N K, Ilkhechi N N, Adel M, . Hierarchical architecture of a superhydrophobic Cd–Si co-doped TiO₂ thin film.Applied Surface Science, 2020, 533: 147495

[4] Hooda A, Goyat M S, Pandey J K, . A review on fundamentals, constraints and fabrication techniques of superhydrophobic coatings.Progress in Organic Coatings, 2020, 142: 105557

[5] Bao Y, Chang J, Zhang Y, . Robust superhydrophobic coating with hollow SiO₂/PAA-b-PS Janus microspheres for self-cleaning and oil–water separation.Chemical Engineering Journal, 2022, 446: 136959

[6] Zhang J, Zhang L, Gong X . Large-scale spraying fabrication of robust fluorine-free superhydrophobic coatings based on dual-sized silica particles for effective antipollution and strong buoyancy.Langmuir, 2021, 37(19): 6042–6051

[7] Wang Z, Yuan L, Liang G, . Mechanically durable and self-healing super-hydrophobic coating with hierarchically structured KH570 modified SiO₂-decorated aligned carbon nanotube bundles.Chemical Engineering Journal, 2021, 408: 127263

[8] Yu N, Xiao X, Ye Z, . Facile preparation of durable superhydrophobic coating with self-cleaning property.Surface and Coatings Technology, 2018, 347: 199–208

[9] Huang J, Li M, Ren C, . Preparation of high-efficiency flame-retardant and superhydrophobic cotton fabric by a multi-step dipping.Coating, 2021, 11(10): 1147

[10] Pakdel E, Zhao H, Wang J, . Superhydrophobic and photocatalytic self-cleaning cotton fabric using flower-like N-doped TiO₂/PDMS coating.Cellulose, 2021, 28(13): 8807–8820

[11] Xie C, Li C, Xie Y, . ZnO/acrylic polyurethane nanocomposite superhydrophobic coating on aluminum substrate obtained via spraying and co-curing for the control of marine biofouling.Surfaces and Interfaces, 2021, 22: 100833

[12] Ma X, Zhu Z, Zhang H, . Superhydrophobic and deacidified cellulose/CaCO₃-derived granular coating toward historic paper preservation.International Journal of Biological Macromolecules, 2022, 207: 232–241

[13] Yue D, Lin S, Cao M, . Fabrication of transparent and durable superhydrophobic polysiloxane/SiO₂ coating on the wood surface.Cellulose, 2021, 28(6): 3745–3758

[14] Liang T, Yuan H, Li C, . Corrosion inhibition effect of nano-SiO₂ for galvanized steel superhydrophobic surface.Surface and Coatings Technology, 2021, 406: 126673

[15] Liu H D, Zhang H, Pang J, . Superhydrophobic property of epoxy resin coating modified with octadecylamine and SiO₂ nanoparticles.Materials Letters, 2019, 247: 204–207

[16] Rana A K, Frollini E, Thakur V K . Cellulose nanocrystals: pretreatments, preparation strategies, and surface functionalization.International Journal of Biological Macromolecules, 2021, 182: 1554–1581

[17] Huang J, Lyu S, Chen Z, . A facile method for fabricating robust cellulose nanocrystal/SiO₂ superhydrophobic coatings.Journal of Colloid and Interface Science, 2019, 536: 349–362

[18] Huang J, Wang S, Lyu S . Facile preparation of a robust and durable superhydrophobic coating using biodegradable lignin-coated cellulose nanocrystal particles.Materials, 2017, 10(9): 1080

[19] Wang N, Wang Q, Xu S, . Robust superhydrophobic wood surfaces with mechanical durability.Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2021, 608: 125624

[20] Chaichi M, Hashemi M, Badii F, . Preparation and characterization of a novel bionanocomposite edible film based on pectin and crystalline nanocellulose.Carbohydrate Polymers, 2017, 157: 167–175

[21] Ishak S, Mandal S, Lee H S, . Effect of core–shell ratio on the thermal energy storage capacity of SiO₂ encapsulated lauric acid.Journal of Energy Storage, 2021, 42: 103029

[22] Kang X, Kuga S, Wang C, . Green preparation of cellulose nanocrystal and its application.ACS Sustainable Chemistry & Engineering, 2018, 6(3): 2954–2960

[23] Jeevahan J, Chandrasekaran M, Britto Joseph G, . Superhydrophobic surfaces: a review on fundamentals, applications, and challenges.Journal of Coatings Technology and Research, 2018, 15(2): 231–250

[24] Li M, Li Y, Xue F, . A robust and versatile superhydrophobic coating: wear-resistance study upon sandpaper abrasion.Applied Surface Science, 2019, 480: 738–748

[25] Zhong M, Jang M . Dynamic light absorption of biomass-burning organic carbon photochemically aged under natural sunlight.Atmospheric Chemistry and Physics, 2014, 14(3): 1517–1525

[26] Hu J, Gao Q, Xu L, . Functionalization of cotton fabrics with highly durable polysiloxane‒TiO₂ hybrid layers: potential applications for photo-induced water–oil separation, UV shielding, and self-cleaning.Journal of Materials Chemistry A: Materials for Energy and Sustainability, 2018, 6(14): 6085–6095

[27] Fan X, Miao J T, Yuan L, . Preparation and origin of thermally resistant biobased epoxy resin with low internal stress and good UV resistance based on SiO₂ hybridized cellulose for light emitting diode encapsulation.Applied Surface Science, 2018, 447: 315–324

[28] Eduok U, Faye O, Szpunar J . Recent developments and applications of protective silicone coatings: a review of PDMS functional materials.Progress in Organic Coatings, 2017, 111: 124–163

[29] Chen K, Wang S, Qi Y, . State-of-the-art: applications and industrialization of lignin micro/nano particles.ChemSusChem, 2021, 14(5): 1284–1294

Disclosure of potential conflicts of interests

The authors declare no conflict of interest.

Acknowledgements

This work was supported by the National Natural Science Foundation of China (Grant No. 31901246), the Natural Science Foundation of Zhejiang Province (Grant No. LY21C160002), and the Scientific Research Development Foundation of Zhejiang A&F University (Grant No. 2021KX0042).

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2022 Higher Education Press