Abstract
Surface modification—altering geometric structures or surface energy—is a key factor in improving liquid resistance/repellency on a solid surface. In particular, roughness from geometric structures provides void spaces that enhance energy barriers in nanofibers that a liquid droplet should overcome to penetrate, thus preventing the transition of a liquid drop from the Cassie–Baxter state to Wenzel state. In this work, the design of a geometric structure that performs highly in liquid resistance/repellency was proposed by extending the Cassie–Baxter model into cellulose acetate (CA) nanofibers, entrapping SiO2 nanoparticles, and examining the impact of void spaces created by the entrapped SiO2 into nanofibers in prediction and experiment. The extended Cassie–Baxter equation was simplified using H*, which is characterized by Tnp. The prediction and measurement of the apparent contact angle \( \theta_{nf} \) in CA-SiO2 nanofabrics showed good agreement, and the results emphasized the role of void space in improving liquid resistance/repellency while minimizing chemical treatments for altering surface energy and geometric structure.
Graphic abstract
This is a preview of subscription content, log in via an institution to check access.
Similar content being viewed by others
References
Bhushan B (2009) Biomimetics: lessons from nature—an overview. Philos Trans R Soc A 367:1445–1486
Bhushan B, Jung YC (2011) Natural and biomimetic artificial surfaces for superhydrophobicity, self-cleaning, low adhesion, and drag reduction. Prog Mater Sci 56:100–108
Cassie ABD, Baxter S (1944) Wettability of porous surfaces. Trans Faraday Soc 40:546–551
Eadie L, Ghosh TK (2011) Biomimicry in textiles: past, present and potential. An overview. J R Soc Interfaces 8:761–775
Jonoobi M, Harun J, Mathew AP, Hussein MZB, Oksman K (2010) Preparation of cellulose nanofibers with hydrophobic surface characteristics. Cellulose 17:299–307
Lafuma A, Quere D (2003) Superhydrophobic states. Nat Mater 2:457–460
Lee HJ, Owens JR (2011) Motion of liquid droplets on a superhydrophobic oleophobicsurface. J Mater Sci 46:69–76
Lim J, Powell N, Lee H, Michielsen S (2016) Integration of yarn compression in modeling structural geometry of liquid resistant–repellent fabric surfaces and its impact on liquid behavior. J Mater Sci 51:7199–7210
Lim J, Powell N, Lee HJ, Michielsen S (2017) Geometric impact of void space in woven fabrics on oil resistance or repellency. J Mater Sci 52:8149–8158
Liu C, Bai R (2005) Preparation of chitosan/cellulose acetate blend hollow fibers for adsorptive performance. J Membr Sci 267:68–77
Liu H, Hsieh YL (2002) Ultrafine fibrous cellulose membranes from electrospinning of cellulose acetate. J Polym Sci B 40:2119–2129
Lv D, Zhu M, Jiang Z, Jiang S, Zhang Q, Xiong R, Huang C (2018) Green electrospun nanofibers and their application in air filtration. Macromol Mater Eng 303:1800336
Marmur A (2003) Wetting on hydrophobic rough surfaces: to be heterogeneous or not to be? Langmuir 19:8343–8348
Michielsen S, Lee HJ (2007) Design of a superhydrophobic surface using woven structures. Langmuir 23:6004–6010
Mikaeili F, Gouma PI (2018) Super water-repellent cellulose acetate mats. Sci Rep 8:12472
Nosonovsky M (2007) Multiscale roughness and stability of superhydrophobic biomimetic interfaces. Langmuir 23:3157–3161
Quéré D (2008) Wetting and roughness. Annu Rev Mater Res 38:71–99
Razzaz A, Ghorban S, Hosayni L, Irani M, Aliabadi M (2016) Chitosan nanofibers functionalized by TiO2 nanoparticles for the removal of heavy metal ions. J Taiwan Inst Chem E 58:333–343
Reyssat M, Pépin A, Marty F, Chen Y, Quéré D (2007) Bouncing transitions onmicrotextured materials. EPL (Europhys Lett) 74:306
Richard D, Clanet C, Quéré D (2002) Contact time of a bouncing drop. Nature 417:811
Tuteja A, Choi W, Mabry J, McKinley G, Cohen R (2008) Engineering superhydrophobic and superoleophobic surfaces. Abstr Bio-Nanotechnol Conf TradeShow 1:439–442
Zhou X, Lin X, White KL, Lin S, Wu H, Cao S, Huang L, Chen L (2016) Effect of the degree of substitution on the hydrophobicity of acetylated cellulose for production of liquid marbles. Cellulose 23:811–821
Zulfiqar U, Hussain SZ, Awais M, Khan MMJ, Hussain I, Husain SW, Subhani T (2016) In-situ synthesis of bi-modal hydrophobic silica nanoparticles for oil–water separation. Colloids Surf A Physicochem Eng Asp 508:301–308
Acknowlegments
This research was supported by Korean Institute of Industrial Technology Convergence (EO190045).
Author information
Authors and Affiliations
Corresponding authors
Additional information
Publisher's Note
Springer Nature remains neutral with regard to jurisdictional claims in published maps and institutional affiliations.
Rights and permissions
About this article
Cite this article
Lim, J., Kim, J.R. Geometric structure modification in cellulose acetate nanofibers and its impact on liquid resistance/repellency. Cellulose 27, 2521–2528 (2020). https://doi.org/10.1007/s10570-019-02959-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10570-019-02959-z