Water-repellent acylated and silylated wood samples and their surface analytical characterization

Mohammed-Ziegler, Ildikó; Tanczos, I.; Hórvölgyi, Zoltán; Agoston, Bianka

doi:10.1016/j.colsurfa.2007.06.063

Cited by 33 publications

(21 citation statements)

References 20 publications

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“…These CAs are higher than those of heat-treated wood (Pétrissans et al 2003) and similar to those of silylated wood (Mohammed-Ziegler et al 2008) or siloxane plasmatreated wood (Podgorski et al 2000). Compared with reports on pine wood (W PTMOS ) in water or EtOH, the CAs in the present work are higher by 25% (Aaserud et al 2009).…”

Section: Resultssupporting

confidence: 46%

Chemistry and water-repelling properties of phenyl-incorporating wood composites

et al. 2013

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The properties of materials are presented, which are resulting from a combined inorganic-organic modification of wood with phenyltrimethoxysilane or phenyltriethoxysilane in a simple one-step impregnation treatment. The permanent swelling of the wood showed that the precursors entered the cell walls. The inclusion of phenyl groups, manifest by nuclear magnetic resonance spectroscopy, made the resulting wood composites highly hydrophobic, as evidenced by their low wettability and antishrink efficiencies of up to 44%. Impedance spectroscopy indicated that wood methylol groups took part in the condensation reactions with hydrated siloxanes, contributing to the high hydrophobicity and making the added phase resistant to leaching. The composites exhibited high weight percentage gains of up to 52% and ash contents up to 19%. The thermal properties of precursor solutions and products were assessed by differential scanning calorimetry and thermogravimetric analysis and compared with the more common silica precursor, tetraethyl orthosilicate.

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Section: Resultssupporting

confidence: 46%

Chemistry and water-repelling properties of phenyl-incorporating wood composites

et al. 2013

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“…Best known are the natural superhydrophobic species such as lotus leaves, rose petals, butterfly's wing, and water strider's legs (Sun et al 2005;Feng et al 2008). The superhydrophobic treatment of wood has a great potential in terms of better water and dust repellency, dimensional stability, and a longer service life (Mohammed-Ziegler et al 2008), and the research in this context was very intense in the last years in China (She et al 2013;Wang et al 2013;Zhang et al 2013). …”

Section: Introductionmentioning

confidence: 99%

Mechanical stability of superhydrophobic epoxy/silica coating for better water resistance of wood

et al. 2014

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A three-step procedure has been developed for superhydrophobic coating on wood based on epoxy/ silica materials in combination with hydrophobization. First, the epoxy resin is adhered to wood by immersing the samples into an epoxy resin acetone solution, then amino-functionalized silica particles are anchored by the epoxide groups, and finally, the created surface is modified by octadecyltrichlorosilane (OTS). The superhydrophobic surface not only is water repellent, as shown by the contact angle (CA) tests, but also decreases essentially the wood's water absorption as determined by a 120-day water immersion test. The good mechanical stability of the coating was confirmed by a sand collision method.

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“…1 and 2. Such alterations in the alignment of polymeric chains is also reflected in the disappearance of the peak at 1100 cm −1 , as the levels of moisture in the gel increase, which is due to stretching of the C O C linkage of ethyl cellulose molecules [26,29]. Another peak of importance seen in our infra red spectra is in the range of 1600-1650 cm −1 being attributed to adsorbed water in the non crystalline regions of polymeric materials [30].…”

Section: Atr-ftir Analysismentioning

confidence: 75%

Effect of hydration on the structure of non aqueous ethyl cellulose/propylene glycol dicaprylate gels

Bruno

Kasapis

Heng

2012

International Journal of Biological Macromolecules

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Water-repellent acylated and silylated wood samples and their surface analytical characterization

Cited by 33 publications

References 20 publications

Chemistry and water-repelling properties of phenyl-incorporating wood composites

Chemistry and water-repelling properties of phenyl-incorporating wood composites

Mechanical stability of superhydrophobic epoxy/silica coating for better water resistance of wood

Effect of hydration on the structure of non aqueous ethyl cellulose/propylene glycol dicaprylate gels

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