The goal of this research was improving the mechanical and physical properties poly lactic acid (PLA) using cellulose nanofiber (CNF) as reinforcing maleated PLA (PLA-g-MA) a compatibilizer. PLA/nanocellulose composites were prepared through melt mixing with (5 wt%) two levels nanofibers (CNFs) (3 5 twin screw extrusion. Nanocomposites fracture morphology, thermal properties, crystallization behavior, behavior determined function grafted on maleic anhydride content scanning electron...

In this paper, preparation and characterization of cellulose nanocrystalline celluloses (NCC) the effect characteristic hydrolyze conditions on morphology size obtained NCC will be discussed. Two different were prepared by two procedures, A B, then was hydrolyzed under same conditions. The result showed that nanocrystals are not only attributed to sources, but also

The aim of this study was to investigate polyurethane foams (PUF) properties obtained from crude glycerol (CG) and polyethylene glycol (PEG) based liquefaction sawdust. four types foam were prepared by producing polyols different weight loadings PEG CG as the solvent. produced showed densities 0.042 0.08 g/cm3 compressive strengths 200 311 kPa. CG/PEG liquefaction, had more uniform regular cell structure than derived CG. Also with increasing percentage in closed content synthesized increased...

In this research, the influence of nanoclay on urea–glyoxalated lignin–formaldehyde (GLUF) resin properties has been investigated. To prepare GLUF resin, glyoxalated soda baggase lignin (15 wt%) was added as an alternative for second urea during UF synthesis. The prepared mixed with 0.5%, 1%, and 1.5% by mechanically stirring 5 min at room temperature. physicochemical resins were measured according to standard methods. Then used in particleboard production physical mechanical manufactured...

Abstract Canola is widely grown in the northern latitudes for its vegetable oil, generating large quantities of residual, low value canola flour used as animal feed. The common wood adhesive poly(diphenylmethylene diisocyanate) (pMDI) should react with wide variety functional groups proteins. Therefore, it would seem that added pMDI could be an effective adhesive. Two main questions are addressed this study: How do properties compare to better‐studied soy flour? well proteins, which contain...

Carbon fiber (CF)-filled fiberboard specimens for electromagnetic (EM) shielding applications were produced in this study by mixing CF with wood (WF). The aim of work was to the panel properties different loadings (1%, 2%, 3%, 5%, and 10%) CF. mechanical, physical, interference (EMI) medium density (MDF) analyzed. effectiveness (SE) CF1 sample 23.5 dB 35.0 frequency range 8.2 GHz 12.4 GHz. maximum SE 64 76 obtained CF10 sample. investigation mechanical MDF indicated that modulus rupture...

The aim of this research was to replace petroleum-based polyols with made from lignin and nano-lignin in the production polyurethane coatings. Lignin were first reacted either diethylenetriamine or ethylenediamine. Subsequently, they modified propylene carbonate. lignin- nano-lignin-derived replaced conventional acrylic polyol results Fourier transform infrared analysis showed that urethane, isothiocyanate strong C–N bonds formed nano-lignin-based polyurethanes. Moreover, surface adhesion...

The objective of this study was to extract cellulose nanofibrils (CNFs) from Linter dissolving pulp through a simple and environmentally friendly physical method refining pretreatment coupled with ultrafine grinder. morphology, structure properties the obtained NFCs were investigated using Optical Microscopy (OM), electron microscopy (SEM), Atomic Force (AFM), Fourier transformed infrared (FTIR) spectra, X-ray diffraction (XRD) Thermogravimetric (TG) analysis. OM results indicate that, Pulp...

Polyols, which are important compounds of polyurethane adhesives (PU), were prepared in this work from renewable sources. Beech wood sawdust was liquefied using ethylene carbonate as a new solvent and sulfuric acid catalyst the two phases. The first phase liquefaction process carried out at temperatures 110 to 160 °C, content studied second phase. biopolyol used for types adhesive by blending isocyanate, poly4,4′- diphenyl methane diisocyanate (PMDI) toluene (TDI), different NCO/OH ratios...

Polyols are groups of organic compounds which contain carbon and randomly linked to other atoms, especially carbon-carbon carbon-hydrogen. These mainly used as reactants make polymers. Among biopolymers, lignin is regarded the base a new polymer in polyol construction. The present study aimed investigate effects amine type (diethylenetriamine ethylenediamine) on modification lignin-based polyols, so provide an alternative petroleum polyols and, turn, increase functional reduce their harm...