Micro-structure and mechanical properties of microcrystalline cellulose-sisal fiber reinforced cementitious composites developed using cetyltrimethylammonium bromide as the dispersing agent

Filho, Aloysio; Parveen, Shama; Rana, Sohel; Vanderlei, Romel Dias; Fangueiro, Raúl

doi:10.1007/s10570-020-03641-5

Cited by 22 publications

(10 citation statements)

References 41 publications

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“…The addition of 0.1 wt% MCC to composites increased flexural strength by 18% when combined with 0.5% sisal fibers. [119] In another study by Aloysio Filho, flexural properties of cement/sisal fibers and microcrystalline cellulose composites addition of up to 2% sisal fibers (without MCC) lowered the flexural strengths by 13%. Reinforcements comprising of 0.1, 0.25, and 0.5 wt% MCC.…”

Section: Flexural Properties Of Cellulose/ Aramid/kevlar Based Multis...mentioning

confidence: 96%

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Mechanical properties of cellulose‐based multiscale composites: A review

et al. 2022

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Nanocellulose, which is cellulose in the form of nanostructures, has emerged as one of the most significant green materials of our time in recent years because of their appealing and exceptional characteristics such as abundance, high aspect ratio, improved mechanical capabilities, renewability, and biocompatibility. The present review mainly covers the effect of different properties of nanocellulose on the mechanical properties of nanocellulose-based multiscale composites. Our review article covers the classification of nanocellulose structures, extraction of Nanocellulose, and mechanical properties of cellulosebased multiscale composites such as tensile, flexural and impact, followed by the applications of nanocellulose-based multiscale fiber reinforced polymer composites. There is a demand in the industry for an efficient alternate material to man-made synthetic materials with superior mechanical properties.Nano cellulose-based multiscale composites can be an efficient alternative to meet sustainability goals without compromising performance.

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Section: Flexural Properties Of Cellulose/ Aramid/kevlar Based Multis...mentioning

confidence: 96%

“…The addition of 0.1 wt% MCC to composites increased flexural strength by 18% when combined with 0.5% sisal fibers. [ 119 ]…”

Section: Mechanical Properties Of Cellulose‐based Multiscale Compositesmentioning

confidence: 99%

Mechanical properties of cellulose‐based multiscale composites: A review

et al. 2022

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“…Today, the requirement for environmentally friendly products is not only a consequence of numerous legal regulations but also increasingly driven by the need to develop technologies for the manufacture of the most environmentally friendly products, as well as in the context of the diversification of fossil resources towards renewable raw materials. Wood [4][5][6], cellulose [7,8] and its nanometric counterpart, nanocellulose [9][10][11][12], are used as lignocellulosic fillers in polymer matrix. Unfortunately, due to numerous problems with the proper distribution of cellulose particles in the polymer and the formation of agglomerates and, as a consequence, poor interfacial adhesion to hydrophobic polymers as well as the tendency of cellulose fibers to absorb water, the scientific world is looking for new solutions towards the creation of innovative plastic fillers [13].…”

Section: Introductionmentioning

confidence: 99%

Nanocellulose-Based Polymer Composites Functionalized with New Gemini Ionic Liquids

Zielińska

Skrzypczak

Peplińska

et al. 2022

IJMS

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The manuscript discusses the application of dimeric imidazolium ionic liquids with an aliphatic linker of different lengths, constituting a new class of compounds called gemini, for the modification of renewable materials. This innovative functionalization with the use of ionic liquids made it possible to obtain polymer composite nanomaterials with renewable fillers, which will reduce the consumption of petroleum-based raw materials and also be directly related to the reduction of energy intensity. Renewable filler in the form of nanocellulose modified with ionic liquids, as well as polymer composites with such filler obtained by extrusion and injection molding techniques, were subjected to detailed characterization using techniques like: X-ray diffraction (XRD), Fourier transform spectroscopy (FTIR), dispersion studies (DLS), morphological analysis (SEM), differential scanning calorimetry (DSC), hot-stage polarized light microscopy and characterization of mechanical properties. The use of innovative dimeric ionic liquids proved to be an effective method to carry out efficient functionalization of cellulose. This provided a stable space structure between polysaccharide particles, limiting aggregate formation. It was shown that chemical modification with ionic liquids has a significant effect on the nucleation activity of cellulose fillers and the formation of the supermolecular structure of the polymer matrix, which consequently allowed to obtain polymer composites with excellent strength characteristics and increased flexibility, which will allow to increase their application potential. Innovative ionic liquids have contributed to obtaining green nanomaterials with excellent functional properties, which have not been described in the literature so far.

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“…The first is cellulose nanoobjects, in which cellulose nanocrystals (CNCs) and cellulose nanofibrils (CNFs) can be distinguished. The second type of nanocellulose is nanostructured cellulose, which includes cellulose microcrystals (CMCs), microcrystalline cellulose (MCC), cellulose microfibrils (CMFs), microfibrillated cellulose (MFC) and bacterial cellulose (BC) [ 3 , 8 , 9 , 10 , 11 , 12 , 13 ].…”

Section: Introductionmentioning

confidence: 99%

Production of Nanocellulose by Enzymatic Treatment for Application in Polymer Composites

et al. 2021

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In the last few years, the scientific community around the world has devoted a lot of attention to the search for the best methods of obtaining nanocellulose. In this work, nanocellulose was obtained in enzymatic reactions with strictly defined dispersion and structural parameters in order to use it as a filler for polymers. The controlled enzymatic hydrolysis of the polysaccharide was carried out in the presence of cellulolytic enzymes from microscopic fungi—Trichoderma reesei and Aspergillus sp. It has been shown that the efficiency of bioconversion of cellulose material depends on the type of enzymes used. The use of a complex of cellulases obtained from a fungus of the genus Trichoderma turned out to be an effective method of obtaining cellulose of nanometric dimensions with a very low polydispersity. The effect of cellulose enzymatic reactions was assessed using the technique of high-performance liquid chromatography coupled with a refractometric detector, X-ray diffraction, dynamic light scattering and Fourier transform infrared spectroscopy. In the second stage, polypropylene composites with nanometric cellulose were obtained by extrusion and injection. It was found by means of X-ray diffraction, hot stage optical microscopy and differential scanning calorimetry that nanocellulose had a significant effect on the supermolecular structure, nucleation activity and the course of phase transitions of the obtained polymer nanocomposites. Moreover, the obtained nanocomposites are characterized by very good strength properties. This paper describes for the first time that the obtained cellulose nanofillers with defined parameters can be used for the production of polymer composites with a strictly defined polymorphic structure, which in turn may influence future decision making about obtaining materials with controllable properties, e.g., high flexibility, enabling the thermoforming process of packaging.

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Micro-structure and mechanical properties of microcrystalline cellulose-sisal fiber reinforced cementitious composites developed using cetyltrimethylammonium bromide as the dispersing agent

Cited by 22 publications

References 41 publications

Mechanical properties of cellulose‐based multiscale composites: A review

Mechanical properties of cellulose‐based multiscale composites: A review

Nanocellulose-Based Polymer Composites Functionalized with New Gemini Ionic Liquids

Production of Nanocellulose by Enzymatic Treatment for Application in Polymer Composites

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