Membranes and filters are essential devices, both in the laboratory for separation of media, solvent recovery, organic water filtration purposes, industrial scale applications, such as removal pollutants, e.g. heavy metal ions, from water. Due to their stability, biologically sourced renewable membrane or filter materials, cellulose chitin, provide a low-cost, sustainable alternative synthetic materials treatment. Here, we investigated potential fungal chitin nanopapers derived A. bisporus...

A simple route to highly sulfonated hypercrosslinked polymers: low-cost and tunable heterogeneous catalysts.

Nanocellulose is isolated from cellulosic fibers and exhibits many properties that macroscale cellulose lacks. Cellulose nanocrystals (CNCs) are a subcategory of nanocellulose made stiff, rodlike, highly crystalline nanoparticles. Algae the order Cladophorales source longest nanocrystals, but manufacturing these CNCs not well-studied. So far, most publications have focused on applications this material, with basic parameters material receiving little attention. In article, we investigate...

A solid epoxy resin formulation containing 2.5 wt % carbon nanotubes is 3D printed into self-standing parts, which after thermal curing result in CNTs/epoxy nanocomposites with mechanical properties attractive for heavy-duty applications.

Uncured solid bisphenol-A epoxy resins containing up to 20 wt% carbon nanotubes (CNTs) were prepared using melt blending in a high shear mixer. The extrudate was ground produce fine nanocomposite (NC) powders. This simple method produced well-dispersed NC, with CNT agglomerate sizes below 1 μm. Consolidated NCs displayed improved tensile moduli and strengths 3.3 GPa (+32%) 78 MPa (+19%), respectively at 15 CNT, compared the pure cured matrix. relatively Tg of 39 °C for uncured NC powders...

Due to their exceptional properties, cellulose nanocrystals (CNCs) have been proposed for various applications in sustainable materials science. However, state-of-the-art production methods suffer from low yields and rely on hazardous environmentally harmful chemicals, representing a bottleneck more widespread utilization of CNCs. In this study, we present novel two-step approach that combines previously established HCl gas hydrolysis with electrochemical TEMPO oxidation. This unique method...

Thermosetting resins were formulated by mixing solid epoxy components, hardener and accelerator at elevated temperature. These mixtures ground into uncured, resin powders dispensed onto carbon fibres using a powder printer prior to vacuum curing. Using accelerators reduced curing time from 8 h 16 min. Manufactured cross-ply fibre laminates (0°/90°/0°) had comparable mechanical properties composites manufactured liquid system. Tack behaviour of formulations was investigated results compared...

This study explores the production of furfural, xylose and methylxylosides through methanolysis wood flour using anhydrous HCl gas. The process involves with gas under pressure to generate methylxylosides, which are subsequently converted furfural via autohydrolysis in a Parr batch reactor system. was conducted temperature‐controlled chamber employing 24 h reaction time 50% methanol content flour. During step gas, 65% available xylan water‐soluble xylose, xylooligosaccharides (XO) methyl...

<title>Abstract</title> Due to their exceptional properties, cellulose nanocrystals (CNCs) have been proposed for various applications in sustainable materials science. However, state-of-the-art production methods suffer from low yields and rely on hazardous environmentally harmful chemicals, representing a bottleneck more widespread utilization of CNCs. In this study, we present novel two-step approach that combines previously established HCl gas hydrolysis with electrochemical TEMPO...

The state-of-the-art method to isolate cellulose nanofibres employs a 2,2,6,6-Tetramethylpiperidinyloxyl (TEMPO)/NaBr/NaClO system, where the primary alcohols on surface of microfibrils are oxidised. However, large consumption hypochlorite in this system makes it problematic for industrial implementation. Previously, electrochemical oxidation with TEMPO catalyst has been reported preparation nanofibres. Here, we present study electromediated bacterial (BC), purest form cellulose. BC used...