This article describes how crystalline or fibrous nanocellulose influences the mechanical properties of paper substrate. In this context, we used commercially available cellulose nanocrystals, mechanically prepared nanofibers dispersed in water ethanol, and carboxy nanofibers. Selective reinforcement treated with samples mentioned above was observed. The change fibre structure assessed using scanning electron microscopy, roentgenography, spectroscopy techniques. addition, effect coating on...

Starch is an inexpensive, easily accessible, and widespread natural polymer. Due to its properties availability, this polysaccharide attractive precursor for sustainable products. Considering exploitation in adhesives coatings, the major drawback of starch high affinity towards water. This study aims explain influence silane-starch coating on hydrophobic paper. The analysis organosilicon modified showed enhanced behavior, suggesting higher durability coatings. Molecules silanes with short...

Due to the wider use of nanocellulose in various areas economic life, better and more optimal methods obtaining are constantly being sought. Therefore, an attempt was made evaluate hybrid cellulose treatment, based on a chemical method combined with ultrasound medium frequency. The study employs two different starting materials (Södra Black R or microcrystalline cellulose), types pre-treatments (acid hydrolysis oxidation), sonication durations. It found that reduction fiber cross-sectional...

It can be found that reaction mechanisms and interactions between wood organosilicone compounds have not been sufficiently explored. The aim of the study was to determine bonds formed either cellulose or lignin methyltrimethoxysilane (MTMOS) during a catalytic silanization reaction. Silanization performed in presence two catalysts diverse mechanism functionalization: aluminum acetylacetonate (Al(acac)3) acetic acid (AcOH). For this purpose, FT-IR, 13C 29Si NMR techniques were used. Cellulose...

Abstract The effects of various cellulose treatments on the hydrophobic properties and sorption behavior with respect to liquid water uptake vapor were examined within study. Different agents based silicon compounds applied improve cellulose-based sheets. 1H,1H,2H,2H perfluorooctyltriethoxysilane treatment increased hydrophobicity significantly, while N-octyltriethoxysilane inorganic sodium silicate solution only slightly affected properties. Silicone-cellulose interaction varied,...

Nanocellulose is a nanostructured form of cellulose, which retains valuable properties cellulose such as renewability, biodegradability, biocompatibility, nontoxicity, and sustainability and, due to its nano-sizes, acquires several useful features, low density, high aspect ratio stiffness, specific surface area, easy processing functionalisation, good thermal stability. All these make it highly versatile green nanomaterial for multiple applications, including the conservation cultural...

Abstract Sorption properties of paper products are important when applying as the packaging material. Hydrophobicity, i.e. reduced affinity surface to liquid water, is particular importance from point view direct impact on packed goods. However, hygroscopicity material significant during storage The analysis changes in hygroscopic induced by treatment with silane modified starch was presented. results treated were related previously published hydrophobicity. discrete values equilibrium...

Phosphorylated cellulose can be an intrinsic flame retardant and a promising alternative for halogenated fire inhibitors. In this study, the mixture of di-ammonium hydrogen phosphate (DAP) urea (U), containing nitrogen groups, was applied to attain inhibitor properties. Functional groups were grafted with phosphorous by keeping constant molar ratio 1/1.2/4.9 between anhydroglucose units cellulose/DAP/U in different concentrations bleached kraft pulp. Phosphorus determined using ICP hrOES...

The need for sustainable, biodegradable materials to address environmental challenges, such as oil-water separation, is growing. Cellulose-based absorbents offer an eco-friendly alternative synthetic materials. However, their hydrophobicity must be enhanced efficient application. In this study, cellulose-based sorbents derived from Kraft and half-bleached chemo-thermomechanical pulp (BCTMP) were hydrophobized using silanization alkyl ketene dimer (AKD) techniques. Hydrophobic properties...

The circular economy forces societies to take actions aimed at giving post-consumer products a “second life”. As we know, wood is perfect for this. Moreover, reusing helps keep carbon in circulation, thus limiting its emissions into the atmosphere. It turns out that extensive research on determining durability of very useful and valuable one more reason. Well, they can be used create model determine usefulness wood, which has only apparently lost utility value during many years exposure...

This study aimed to examine the effect of organosilicon compounds-modified linseed oil parameters on wood utility properties. Linseed silylation with an compound containing a vinyl group (vinyltrimethoxysilane) has made it possible synthesize products characterized by high stability in storage. The impregnation these resulting contributed increased resistance protected water exposure when compared unprotected or polymerized that was not subject reaction. lower absorption rate liquid as well...

The global packaging sector has grown consistently, and the use of sustainable materials, including recycled biodegradable products, is expected to rise. This study focuses on potential producing barriers for water in moist air (water vapor) from proteins protect cellulosic materials. Owing specific requirements main subject this research was their barrier strength properties. scope work includes selecting components physicochemical treatment produce functionalized coatings sprayed paper...

This research investigated the selected properties of nanocellulose films intended to serve as protective patches on fissured surfaces wooden artefacts. The effects their plasticisation with glycerol and functionalisation silanes ((3-Glycidyloxypropyl)trimethoxysilane, Methyltrimethoxysilane) were also determined. obtained pure cellulose nanopapers (CNPs) had a homogeneous compact structure but very brittle, stiff, wavy. Functionalisation made more packed reduced equilibrium moisture content...

A wooden object that has survived in a wet environment is characterised by water saturation and called waterlogged wood.The subject of the study was elm piles, dating back to 10 th and11 century, excavated from Lednica lake archaeological site.Wooden piles showed high degree degradation.This evidenced their spongy fragile structure.As result biotic abiotic degradation wood cell wall, significant change its chemical composition observed.The weakening structure increase porosity were as...

The subject of this work was to characterize the catalytic course linseed oil silylation reaction with vinyltrimethoxysilane (VTMOS), carried out under elevated pressure and temperature conditions, an explanation reasons for rapid gelation product. To explain describe process, analytical methods were used, i.e., 1H 13C NMR (nuclear magnetic resonance), GC-FID (gas chromatography coupled flame ionisation detection), GPC (gel permeation chromatography). Reaction products monitored after 3, 6...

Abstract Sorption properties of paper products are important when applying as the packaging material. Hydrophobicity, i.e. reduced affinity surface to liquid water, is a particular importance from point view direct impact on packed goods. However, hygroscopicity material significant during storage The analysis changes in hygroscopic induced by treatment with silane modified starch was presented. results treated were related previously published hydrophobicity. discrete values equilibrium...