Micropatterned Amorphous Zr-Based Alloys Coated with Silica Nanoparticles as Superhydrophobic Surfaces against Abrasion

Li，Mingjie1; Luo，Wenxin1; Sun，Haoyang1; Xu，Jingfu1; Ng，Kar Wei2; Cheng，Xing1

2021

10.1021/acsanm.1c02780

ACS Applied Nano Materials   影响因子和分区

2574-0970

Superhydrophobic metallic surfaces with mechanical stability as well as self-cleaning and anticorrosion functions are highly desirable because of their promising applications in various aspects. Large apparent water contact angles (≥150°) on metal surfaces are usually realized by high surface roughness and low surface energy. However, rough nanoscale features and low-energy coatings are prone to wear, causing degradation of the local wetting property during service. Herein, we develop a low-cost and scalable fabrication methodology to prepare composite superhydrophobic surfaces (water contact angle μ154.7± 2.3° and sliding angle μ1.2 ± 0.2°) by integrating a micropatterned amorphous alloy frame with functionalized nanoparticles. Amorphous interconnected microwalls provide augmented resistance against abrasion, whereas spray-coated nanomaterials residing within the frame impart water repellency. Metallic surfaces can withstand abrasion against sandpaper for 40 m under a local pressure of 120 kPa, before losing their perfect superhydrophobic performances. The composite surfaces also maintain its water repellency after mechanical bending, knife scratching, water impact jetting, ultraviolet (UV) irradiation, and acid immersion. We envisage that the design strategies here provide a practical route to manufacture water-repellent surfaces with metallic glass in harsh nautical applications.

amorphous alloy anti-abrasion imprint mechanical stability micropatterns silica nanoparticles superhydrophobic

EI ; SCI

英语

第一 ; 通讯

Department of Science and Technology of Guangdong Province[2020B0101030001] ; Shenzhen Science and Technology Innovation Committee[ZDSYS20140509142721431] ; Research Services and Knowledge Transfer Office at the University of Macau[MYRG2018-00086-IAPME]

Science & Technology - Other Topics ; Materials Science

Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary

WOS:000752894100092

AMER CHEMICAL SOC

20214711182216

Abrasion ; Amorphous alloys ; Contact angle ; Hydrophobicity ; Mechanical stability ; Metallic glass ; Metals ; Surface properties ; Surface roughness ; Wetting

Metallurgy and Metallography:531 ; Nanotechnology:761 ; Physical Properties of Gases, Liquids and Solids:931.2 ; Materials Science:951

2-s2.0-85119133928

Scopus

1.Department of Materials Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
2.Institute of Applied Physics and Materials Engineering,University of Macau,Taipa,999078,Macao

Li，Mingjie,Luo，Wenxin,Sun，Haoyang,et al. Micropatterned Amorphous Zr-Based Alloys Coated with Silica Nanoparticles as Superhydrophobic Surfaces against Abrasion[J]. ACS Applied Nano Materials,2021,4(11):12300-12307.

Li，Mingjie,Luo，Wenxin,Sun，Haoyang,Xu，Jingfu,Ng，Kar Wei,&Cheng，Xing.(2021).Micropatterned Amorphous Zr-Based Alloys Coated with Silica Nanoparticles as Superhydrophobic Surfaces against Abrasion.ACS Applied Nano Materials,4(11),12300-12307.

Li，Mingjie,et al."Micropatterned Amorphous Zr-Based Alloys Coated with Silica Nanoparticles as Superhydrophobic Surfaces against Abrasion".ACS Applied Nano Materials 4.11(2021):12300-12307.