Towards the Development of One-Step Scalable Self-Cleaning and Stain-Resistant Coating on Cellulosic Wood

Gururani, Rashi; Pandit, Sapan Kumar; Kumari, Preeti; Kumar, Aditya

doi:10.1007/s12221-024-00556-x

Fibers Polym

2024

DOI: 10.1007/s12221-024-00556-x

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Towards the Development of One-Step Scalable Self-Cleaning and Stain-Resistant Coating on Cellulosic Wood

Rashi Gururani,

Sapan Kumar Pandit,

Preeti Kumari

et al.

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Endowing Three-Dimensional Porous Wood with Hydrophobicity/Superhydrophobicity Based on Binary Silanization

Tang,

Zhang,

Hess

et al. 2024

ACS Appl. Mater. Interfaces

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Wood, as a natural biomass material, has long been a research focus. Superhydrophobic modified wood, in particular, has shown great promise in a myriad of engineering applications such as architecture, landscape, and shipbuilding. However, commercial development has encountered significant resistance due to preparation difficulties and sometimes unsatisfactory performance. In this study, hydrophobic/superhydrophobic wood comodified with methyltrimethoxysilane (MTMS) and 1H,1H,2H,2H-perfluorodecyltrimethoxysilane (PFDTMS) was fabricated by a one-step sol–gel method that uses an in situ growth process. Low-molecular-weight MTMS was allowed to permeate the three-dimensional porous wood interior. Then, acid–base catalysts were used to regulate the hydrolytic condensation process of MTMS and PFDTMS composite silanes to generate micro/nano hierarchical structures with low surface energy on the wood surface. The physicochemical characteristics of modified wood were investigated and the reaction mechanism established. The modified wood displayed excellent internal hydrophobicity/surface superhydrophobicity, water-moisture resistance, and dimensional stability at low fluorine concentrations. The resulting superhydrophobic surface provided stain resistance, self-cleaning ability, and loading capacity in water while exhibiting good mechanochemical stability; wood mechanical strength was also enhanced. This methodology created a superhydrophobic surface and bulk hydrophobization of wood in one step. Beyond wood, this approach is expected to provide a promising approach for functional modification of other porous composite materials.

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Endowing Three-Dimensional Porous Wood with Hydrophobicity/Superhydrophobicity Based on Binary Silanization

Tang,

Zhang,

Hess

et al. 2024

ACS Appl. Mater. Interfaces

View full text Add to dashboard Cite

show abstract

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Towards the Development of One-Step Scalable Self-Cleaning and Stain-Resistant Coating on Cellulosic Wood

Cited by 1 publication

References 33 publications

Endowing Three-Dimensional Porous Wood with Hydrophobicity/Superhydrophobicity Based on Binary Silanization

Endowing Three-Dimensional Porous Wood with Hydrophobicity/Superhydrophobicity Based on Binary Silanization

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