Preparation of SiO2 nanoparticles with adjustable size for fabrication of SiO2/PMHS ORMOSIL superhydrophobic surface on cellulose-based substrates

Zhang, Xin‐Xiang; Xiao, Fuchuan; Feng, Qifan; Zheng, Jianguo; Chen, Cuixia; Chen, Hanxian; Yang, Wenbin

doi:10.1016/j.porgcoat.2019.105384

Cited by 19 publications

(9 citation statements)

References 44 publications

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“…The distribution and morphology of the original wood and treated wood are shown in Figure 2. As shown in the FESEM images of the transverse sections of UW and VW, abundant spherical Ag/TiO 2 nanoparticles presented on the cell wall of the wood, which made the cell wall uneven [22,23].…”

Section: Field Emission Scanning Electron Microscopy (Fesem) Analysismentioning

confidence: 99%

Enhanced Anti-Mold Property and Mechanism Description of Ag/TiO2 Wood-Based Nanocomposites Formation by Ultrasound- and Vacuum-Impregnation

et al. 2020

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Ag/TiO2 wood-based nanocomposites were prepared by the methods of ultrasound impregnation and vacuum impregnation. The as-prepared samples were characterized by field emission scanning electron microscopy (FESEM), energy-dispersive spectroscopy (EDS), Fourier transform infrared spectroscopy (FTIR), mercury intrusion porosimetry (MIP), and water contact angles (WCAs). The anti-mold properties of the Ag/TiO2 wood-based nanocomposites were improved by 14 times compared to those of the original wood. The nano-Ag/TiO2, which was impregnated in the tracheid and attached to the cell walls, was able to form a two-stage rough structure and reduce the number of hydroxyl functional groups on the wood surfaces. The resulting decline of wood hydrophobic and equilibrium moisture content (EMC) destroyed the moisture environment necessary for mold survival. Ag/TiO2 was deposited in the wood pores, which reduced the number and volume of pores and blocked the path of mold infection. Thus, the anti-mold properties of the Ag/TiO2 wood-based nanocomposite were improved by cutting off the water source and blocking the mold infection path. This study reveals the anti-mold mechanism of Ag/TiO2 wood-based nanocomposites and provides a feasible pathway for wood-based nanocomposites with anti-mold functions.

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Section: Field Emission Scanning Electron Microscopy (Fesem) Analysismentioning

confidence: 99%

Enhanced Anti-Mold Property and Mechanism Description of Ag/TiO2 Wood-Based Nanocomposites Formation by Ultrasound- and Vacuum-Impregnation

et al. 2020

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“…Higher concentrations decrease adhesion strength due to particle aggregation. The statistical approach has been employed to obtain optimal conditions of the particles deposited on the surface (Zhang et al, 2020b).…”

Section: Principles and Mechanismsmentioning

confidence: 99%

Bioinspired cellulose-based membranes in oily wastewater treatment

Halim

Ernawati

Ismayati³

et al. 2021

Front. Environ. Sci. Eng.

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It is challenging to purify oily wastewater, which affects water-energy-food production. One promising method is membrane-based separation. This paper reviews the current research trend of applying cellulose as a membrane material that mimics one of three typical biostructures: superhydrophobic, underwater superoleophobic, and Janus surfaces. Nature has provided efficient and effective structures through the evolutionary process. This has inspired many researchers to create technologies that mimic nature’s structures or the fabrication process. Lotus leaves, fish scales, and Namib beetles are three representative structures with distinct functional and surface properties: superhydrophobic, underwater superoleophobic, and Janus surfaces. The characteristics of these structures have been widely studied and applied to membrane materials to improve their performance. One attractive membrane material is cellulose, whichhas been studied from the perspective of its biodegradability and sustainability. In this review, the principles, mechanisms, fabrication processes, and membrane performances are summarized and compared. The theory of wettability is also described to build a comprehensive understanding of the concept. Finally, future outlook is discussed to challenge the gap between laboratory and industrial applications.

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“…WFP was selected as the control sample of the study and its properties were also tabulated. In literature, usually platelet shaped clays [17][18][19][20][21][22], and colloidal or agglomerated particles [23][24][25][26][27][28][29][30] are used to enhance the barrier properties of the coated substrates against water or air. Since the aim of the study was to enhance the barrier properties of the samples as much as possible, no sample with just PDMS coating layer was tabulated.…”

Section: Preparation Of the Hybrid Paper Sheetsmentioning

confidence: 99%

“…Moreover, nonwettability of hybrid paper sheets was another important goal to achieve, which has a significant impact on water barrier properties. It is already known in literature that, while only the polymer coating is sufficient to make the paper surface hydrophobic [30], the addition of fillers is necessary in obtaining nonwettable, superhydrophobic paper surfaces [23][24][25][26][27][28]. So, mixtures of PDMS and inorganic particles instead of pure PDMS were used for surface modification of paper substrates.…”

Section: Preparation Of the Hybrid Paper Sheetsmentioning

confidence: 99%

“…Incorporation of kaolin and montmorillonite to polymeric materials to coat paper surfaces is widely studied in literature, especially in preparation of novel packaging materials [7-10, 21, 22]. Addition of colloidal or fumed silica-based polymeric nanocomposite coatings on paper surfaces is also another frequently preferred method in literature [23].…”

Section: Preparation Of the Hybrid Paper Sheetsmentioning

confidence: 99%

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Hybrid paper sheets with improved barrier properties

Söz

2021

Turk J Chem

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Hybrid paper sheets were prepared by applying a thin coating layer of cross-linked polydimethylsiloxane (PDMS) and inorganic particles onto Whatman Grade 1 filter paper substrates. Several coatings with different inorganic particle contents and types were applied onto the paper substrates to investigate the effect of the variation in the coating formulation on the (i) wetting, (ii) water barrier properties, (iii) air barrier properties, (iv) surface roughness, and (v) mechanical properties of the samples. It was revealed that the superhydrophobic hybrid paper sheets with significantly low air permeability and high water barrier properties could be prepared which is an indication that the method proposed can be used for the preparation of packaging materials.

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Preparation of SiO2 nanoparticles with adjustable size for fabrication of SiO2/PMHS ORMOSIL superhydrophobic surface on cellulose-based substrates

Cited by 19 publications

References 44 publications

Enhanced Anti-Mold Property and Mechanism Description of Ag/TiO2 Wood-Based Nanocomposites Formation by Ultrasound- and Vacuum-Impregnation

Enhanced Anti-Mold Property and Mechanism Description of Ag/TiO2 Wood-Based Nanocomposites Formation by Ultrasound- and Vacuum-Impregnation

Bioinspired cellulose-based membranes in oily wastewater treatment

Hybrid paper sheets with improved barrier properties

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