Robust micro-nanoscale flowerlike ZnO/epoxy resin superhydrophobic coating with rapid healing ability

Zhang, Xin; Si, Ying; Mo, Jiliang; Guo, Zhiguang

doi:10.1016/j.cej.2016.11.014

Cited by 148 publications

(39 citation statements)

References 45 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…[8][9][10][11][12][13] Literature provides a good understanding of superhydrophobic phenomenon as mimicked by creating rough micrometer and nanometer scale hierarchical structures with low surface energy. [14][15][16]25,26] Hence, a variety of nanomaterials are used to generate hierarchical surface roughness necessary for superhydrophobic properties; some of these include nanodiamonds, silica, iron oxide, titania, alumina, carbon soot, and carbon nanotubes. [17,2,[18][19][20][21][22][23] To specifically exploit superhydrophobic surfaces for oil-water separation, these nanomaterials are usually deposited on porous substrates such as fabric, foam, mesh, and filter papers to fabricate the absorbent with selective wetting toward oil.…”

Section: Introductionmentioning

confidence: 99%

Durable and Recyclable Superhydrophobic Fabric and Mesh for Oil–Water Separation

et al. 2017

View full text Add to dashboard Cite

The authors report durable and recyclable nanocomposite superhydrophobic coatings on two different substrates of fabric and mesh as prepared by titania nanoparticles and polydimethysiloxane (PDMS). The felted wool fabric and the steel mesh are initially coated with a thin layer of PDMS, which is followed by the deposition of nanocomposite coating of titania nanoparticles embedded in PDMS. The dual surface modification of two kinds of substrates generates highly hydrophobic surface character, which is retained after durability performance as measured in ultrasonication, sand, and emery paper abrasion tests. Oil-water separation experiments are performed using water mixtures with four oils, that is, n-hexane, toluene, kerosene, and diesel to ensure the industrial applications of prepared composite materials.Moreover, nanocomposite coatings are tested for several cycles of oil-water separation in harsh conditions such as hot water, sodium chloride, and hydrochloric acid. The adopted approach improves the separation performance by inducing durability of the prepared nanocomposite coatings along with introducing recyclable character.

show abstract

Section: Introductionmentioning

confidence: 99%

Durable and Recyclable Superhydrophobic Fabric and Mesh for Oil–Water Separation

et al. 2017

View full text Add to dashboard Cite

show abstract

“…One way to enhance the hydrophobicity of these matrix surfaces is the introduction of dispersed ceramic nanoparticles, which increase its roughness. The application of different post-treatments can reduce the surface energy and contribute to create hierarchical micro and nanostructures [ 7 , 8 , 9 , 10 , 11 ]. In addition to providing hydrophobicity, the ceramic nanoreinforcements contribute with other improvements: increase in mechanical properties when there is an effective adhesion with the matrix, increase of thermal stability, enhancement of hardness, and wear resistance among others [ 5 , 12 , 13 , 14 , 15 , 16 ].…”

Section: Introductionmentioning

confidence: 99%

New Manufacturing Process of Composites Reinforced with ZnO Nanoparticles Recycled from Alkaline Batteries

et al. 2020

View full text Add to dashboard Cite

A new manufacturing method of thermosetting resins reinforced with dense particles is developed in the present work. A rotary mold is used, avoiding the natural sedimentation of particles through applying centrifuge forces. A deep study of the sedimentation phenomenon is carried out in order to evaluate the main experimental parameters which influence the manufacturing of composite. The used reinforcement is zinc oxide (ZnO) obtained by a new recycling method from spent alkaline batteries. In order to compare the benefits, commercial ZnO nanoparticles are also analyzed. Recycled ZnO particles enhance the interaction of the epoxy matrix due to their inner moisture, allowing the manufacture of composites with relatively high ceramic content. Moreover, an increment in the glass transition temperature of the epoxy matrix and in the mechanical properties, such as its stiffness and hardness, is achieved.

show abstract

“…[15][16][17][18] A promising strategy to circumvent the above problems is to engineer superhydrophobic surfaces that can self-heal after being damaged. [19][20] The famous concept to construct self-healing superhydrophobic surfaces onto lignocellulostic materials is embedding healing agents (i.e., low surface energy materials) into the porous substrates. Once the outmost hydrophobic layer is damaged, the underneath healing agent can migrate to the damaged area and restore it.…”

Section: Introductionmentioning

confidence: 99%

Thermally-induced all-damage-healable superhydrophobic surface with photocatalytic performance from hierarchical BiOCl

Jia

Luo

et al. 2019

Chemical Engineering Journal

View full text Add to dashboard Cite

Preparation of superhydrophobic surfaces capable of recovering both the surface chemistry and hierarchical structure is still a challenge. In this work, all-damage-healable superhydrophobic surface was fabricated by assembly of superhydrophobic and hierarchical BiOCl on lignocellulosic substrates. Fibers having thermally responsive behavior, the main component of lignocellulosic materials, act as the underlying movable substrates. By a simple heating treatment, fibers can convey the undamaged neighbored superhydrophobic coating to the damaged area. In 2 this way, the loss of superhydrophobicity caused by rigorous mechanical destructions, even deep cuts of one hundred of micrometers wide, can be restored, mimicking the self-healing mechanism of human skin. Superior self-healing ability in surface chemistry was also confirmed. Meanwhile, the as-prepared superhydrophobic surfaces demonstrated reliable photocatalytic ability, a useful property for resisting organic contaminations. Interestingly, it was found that the photocatalytic activity can be enhanced by tuning the surface wettability. This work reported the first use of substrate material's inherently thermally responsive property to demonstrate self-healing superhydrophobic surface with photoctalyticity, which not only promotes the application of superhydrophobic materials in complex environment, but also opens up a new perspective in designing durable superhydrophobic materials.

show abstract

Robust micro-nanoscale flowerlike ZnO/epoxy resin superhydrophobic coating with rapid healing ability

Cited by 148 publications

References 45 publications

Durable and Recyclable Superhydrophobic Fabric and Mesh for Oil–Water Separation

Durable and Recyclable Superhydrophobic Fabric and Mesh for Oil–Water Separation

New Manufacturing Process of Composites Reinforced with ZnO Nanoparticles Recycled from Alkaline Batteries

Thermally-induced all-damage-healable superhydrophobic surface with photocatalytic performance from hierarchical BiOCl

Contact Info

Product

Resources

About