Facile method for the preparation of superhydrophobic cellulosic paper

Musikavanhu, Brian; Hu, Zhijun; Dzapata, Ratidzo Lisah; Xu, Yinchao; Christie, Peter; Guo, Daliang; Li, Jing

doi:10.1016/j.apsusc.2019.143648

Cited by 53 publications

(23 citation statements)

References 39 publications

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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%

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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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Section: Preparation Of the Hybrid Paper Sheetsmentioning

confidence: 99%

Section: Preparation Of the Hybrid Paper Sheetsmentioning

confidence: 99%

Hybrid paper sheets with improved barrier properties

Söz

2021

Turk J Chem

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“…It can introduce functional groups while replacing the hydrogen bonds between cellulose to improve the dispersibility of the CNFs suspensions. Musikavanhu et al [ 171 ] prepared superhydrophobic nanocellulose paper with a water contact angle of 152.9° by grafting hexadecyl trimethoxysilane and introducing SiO 2 by the sol-gel method to increase the surface roughness. Deng et al used trimethoxy siloxane containing sulfhydryl groups to construct a superhydrophobic structure on the surface of nanocellulose membranes by connecting vinyl-POSS through the click reaction induced by ultraviolet light [ 172 ].…”

Section: Surface Modification Of Nanofibrilsmentioning

confidence: 99%

From Cellulose to Cellulose Nanofibrils—A Comprehensive Review of the Preparation and Modification of Cellulose Nanofibrils

Zhao

et al. 2020

Materials

141

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This review summarizes the preparation methods of cellulose nanofibrils (CNFs) and the progress in the research pertaining to their surface modification. Moreover, the preparation and surface modification of nanocellulose were comprehensively introduced based on the existing literature. The review focuses on the mechanical treatment of cellulose, the surface modification of fibrillated fibers during pretreatment, the surface modification of nanocellulose and the modification of CNFs and their functional application. In the past five years, research on cellulose nanofibrils has progressed with developments in nanomaterials research technology. The number of papers on nanocellulose alone has increased by six times. However, owing to its high energy consumption, high cost and challenging industrial production, the applications of nanocellulose remain limited. In addition, although nanofibrils exhibit strong biocompatibility and barrier and mechanical properties, their high hydrophilicity limits their practical application. Current research on cellulose nanofibrils has mainly focused on the industrial production of CNFs, their pretreatment and functional modification and their compatibility with other biomass materials. In the future, with the rapid development of modern science and technology, the demand for biodegradable biomass materials will continue to increase. Furthermore, research on bio-based nanomaterials is expected to advance in the direction of functionalization and popularization.

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“…Despite a large number of publications and patents regarding the hydrophobization of cellulosic materials (see examples: [3][4][5][6]), in practice there are few technologies that really have the potential for industrial application in the production of such mass products as cardboard, coffee cups, or packaging papers because there is a need to reconcile contradictory requirements: low cost of chemicals, the possibility of their application without incurring high investment costs in modifying existing production lines, not creating problems in recycling and, finally, providing barrier properties at a level close to plastic coatings [7]. For niche applications, such as securing banknotes or tissue paper for diagnostic tests, there are less cost and environmental constraints-hence, many recent publications on the hydrophobization of cellulosic products describe complex methods leading to superhydrophobic properties [8,9], combining hydrophobicity with other properties (e.g., bacteriostatic) [10], or providing the ability to selectively control hydrophobicity at specific locations [11].…”

Section: Introductionmentioning

confidence: 99%

“…Unfortunately, most of the organosilicon formulations found in the literature to date for hydrophobizing cellulosic materials are either too expensive or too complex for mass application in the paper industry [ 4 ]. Most of them are based on reactive aminosilanes [ 8 ] or chlorosilanes [ 9 , 16 ] in organic solvents, which rapidly condense with water, releasing harmful by-products into the environment; therefore, their application in the highly humid environment of paper machines seems to be impossible. The most promising agents are those based on alkoxysilanes [ 13 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Siloxane-Starch-Based Hydrophobic Coating for Multiple Recyclable Cellulosic Materials

Ganicz

Rózga-Wijas

2021

Materials

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The results of the application of a new hydrophobization agent based on a triethoxymethylsilane and standard starch aqueous mixture for mass-produced cellulosic materials—printing paper, paperboard, and sack paper—have been evaluated to examine whether such a mixture can be used in industrial practice. The application of this agent on laboratory sheets prepared in a repetitive recycling process was performed to investigate its influence on the formation and properties of the products, as well as the contamination of circulating water. Measurements of the water contact angle, Cobb tests, and water penetration dynamics (PDA) were performed to test the barrier properties of the resulting materials. The effects of the applied coatings and recycling process on the paper’s tensile strength, tear index, roughness, air permeance, and ISO brightness were studied. Studies have proven that this formulation imparts relatively high surface hydrophobicity to all materials tested (contact angles above 100°) and a significant improvement in barrier properties while maintaining good mechanical and optical performance. The agent also does not interfere with the pulping and re-forming processes during recycling and increases circulation water contamination to an acceptable degree. Attenuated total reflectance Fourier-transform infrared (FT-IR) spectra of the paper samples revealed the presence of a polysiloxane network on the surface.

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Facile method for the preparation of superhydrophobic cellulosic paper

Cited by 53 publications

References 39 publications

Hybrid paper sheets with improved barrier properties

Hybrid paper sheets with improved barrier properties

From Cellulose to Cellulose Nanofibrils—A Comprehensive Review of the Preparation and Modification of Cellulose Nanofibrils

Siloxane-Starch-Based Hydrophobic Coating for Multiple Recyclable Cellulosic Materials

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