Biocomposites obtained from wood saw dust using ionic liquids

Croitoru, Cătălin; Paţachia, Silvia

doi:10.2478/achi-2014-0010

Cited by 6 publications

(2 citation statements)

References 17 publications

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“…A possible reason for this is that the IL volume must be high enough to ensure that the IL uniformly covers all sawdust particles. The present findings are in line with a previous study of IL fusion of sawdust, in which a weight ratio of 1:2.5 was used (Croitoru and Patachia 2014).…”

Section: Preparation Of Il Fusion Sawdust Sheetssupporting

confidence: 93%

Manufacture of all-wood sawdust-based particle board using ionic liquid-facilitated fusion process

et al. 2021

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Traditional particle board can generate harmful indoor air emissions due to the volatile resin-based compounds present. This study investigated the preparation of sawdust particle board using the novel ionic liquid based fusion approach with [EMIM]OAc. The dissolution parameters were investigated using the thermal optical microscopy technique. The particle board sheets were prepared by hot pressing sawdust in the presence of ionic liquid (IL) ([EMIM]OAc) and subsequently purifying the fusion sawdust matrix from the IL with methanol. The fusion process of the sawdust particles was analysed with SEM and mechanical testing. The raw materials and the produced materials were investigated with elemental analysis, FTIR, and 13C-SS-NMR. IL fusion of the sawdust required a temperature above 150 °C, similar to the glass transition temperature (tg) of lignin. At lower temperatures, strong particle fusion was not obtained. It was observed that the sawdust/IL weight ratio was an important parameter of the fusion process, and a 1:3 weight ratio resulted in the strongest particle boards with a tensile strength of up to 10 MPa, similar to commercial particle boards. The particle fusion process was also studied with a twin-screw extruder. The extrusion enhanced the fusion of the sawdust particles by increasing dissolution of the sawdust particles, which was subsequently seen in elevated tensile strength (20 MPa). The study provides a practical view of how sawdust-based particle board can be manufactured using ionic liquid-based fusion.

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Section: Preparation Of Il Fusion Sawdust Sheetssupporting

confidence: 93%

Manufacture of all-wood sawdust-based particle board using ionic liquid-facilitated fusion process

et al. 2021

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“…A relative proportion of cellulose crystallite interior chains ( ) can be calculated as follows, taking into account that the surface chains occupy an approximately 0.57 nm layer [22]:…”

Section: Xrd Analysismentioning

confidence: 99%

Long-Chain Alkylimidazolium Ionic Liquid Functionalization of Cellulose Nanofibers and Their Embedding in HDPE Matrix

Croitoru

Paţachia²

2016

International Journal of Polymer Science

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This paper presents a possible alternative to traditional cellulose nanofibers functionalization, by treatment of the material at low temperatures (25–35°C) with electron-beam irradiated 1-hexyl-3-methylimidazolium chloride ionic liquid. The treatment promotes decreasing the crystallinity of the cellulose with up to 45% and possible imidazolium moieties grafting to cellulose, as demonstrated from FTIR, XRD, and elemental analysis. The grafting determines water vapors uptake values with 50–70% lower and water vapors uptake rate with 50% lower than those of reference cellulose nanofibers. The grafting determined also improved adhesion of the cellulose nanofibers to HDPE, thus contributing to the obtaining of polymer matrix composites with improved properties.

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Facile synthesis: from Laminaria hyperborea to cellulose films and fibers

Dai,

Sun,

Sundaram

et al. 2023

Cellulose

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Inverted nozzle-pressurized gyration was used as a processing methodology for regenerating cellulose extracted from Laminaria hyperborea for the first time. The viscoelasticity of cellulose/1-ethyl-3-methylimidazolium acetate (EMIM OAc) solutions exhibited high concentration dependence, leading to the production of cellulose products with diverse structures. The regenerated cellulose transitioned from thin films to fibers (≈ 5 μm diameter) as the concentration was increased. The impact of collection distance and working pressure on the morphology and yield of fibers was investigated. This work provides a new sustainable route for processing biopolymers, offering significant potential for applications in biomedicine and healthcare.

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Biocomposites obtained from wood saw dust using ionic liquids

Cited by 6 publications

References 17 publications

Manufacture of all-wood sawdust-based particle board using ionic liquid-facilitated fusion process

Manufacture of all-wood sawdust-based particle board using ionic liquid-facilitated fusion process

Long-Chain Alkylimidazolium Ionic Liquid Functionalization of Cellulose Nanofibers and Their Embedding in HDPE Matrix

Facile synthesis: from Laminaria hyperborea to cellulose films and fibers

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