Biocomposites from wheat straw nanofibers: Morphology, thermal and mechanical properties

Alemdar, Ayşe; Sain, Mohini

doi:10.1016/j.compscitech.2007.05.044

Cited by 583 publications

(308 citation statements)

References 27 publications

(37 reference statements)

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“…The third phase of weight loss from 350 to 390 °C was associated with the thermal degradation of alpha cellulose (Bledzki et al 2010). These findings are in agreement with TGA of other natural fibers (Alemdar and Sain 2008;Yao et al 2008b). A higher onset of degradation temperature was recorded for alkaline modified lemongrass fiber.…”

Section: Thermogravimetric Analysissupporting

confidence: 80%

“…These fiber reinforcements improve the mechanical strengths and thermal stability of the composites (Panthapulakkal et al 2006;Alemdar and Sain 2008;Zou et al 2008;Mominul et al 2009;Ravindra et al 2010;Arrakiz et al 2013). Most studies have demonstrated that natural fiber reinforcement in polymer matrices substantially improves the desirable characteristics of composite materials in engineering applications, demonstrating the advantages of these fibers over synthetic glass and carbon fibers (Panthapulakkal et al 2006;Jayamani et al 2015).…”

mentioning

confidence: 99%

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Preparation and Characterization of Lemongrass Fiber (Cymbopogon species) for Reinforcing Application in Thermoplastic Composites

et al. 2017

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Lemongrass fiber was analyzed to determine the chemical proportion of its lignocellulosic components. Fibers' thermal behavior, surface structures, and functionality were assessed by thermogravimetric analysis (TGA), scanning electron microscope (SEM), and Fourier transforminfrared spectroscopy (FT-IR), respectively. High-density polyethylene (HDPE) matrix composites filled with varying (10%, 20%, 30%, 40%, and 50%) fiber content were prepared and investigated. Composite wicker was made from HDPE and low density polyethylene (LDPE) blend-matrix and 10% alkaline modified fiber. Alkaline or maleic anhydride grafted polypropylene (MA-g-PP) was used to improve the compatibility between the fiber and matrices. The composites were evaluated by using TGA, SEM microscopy, and universal testing machine, respectively. The fiber was constituted by equitable amounts of lignocellulosic components with cellulose accounting for the highest proportion. It also exhibited high degradation temperature, which was further increased following alkaline modification. Superior thermal degradation behavior was measured for modified fiber composites. SEM showed that the modified fiber composites demonstrated better compatibility. Lemongrass fiber reinforcement substantially improved the mechanical properties of the composites.

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Section: Thermogravimetric Analysissupporting

confidence: 80%

mentioning

confidence: 99%

Preparation and Characterization of Lemongrass Fiber (Cymbopogon species) for Reinforcing Application in Thermoplastic Composites

et al. 2017

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“…The elongation at break was decreased further with the addition of 0.5 wt% of nanosilica. The increase in nanofillers content, which led to the decrease in elongation percentage, is similar to other filled polymer composites (Alemda and Sain 2008;Jonoobi et al 2010). With the addition of nanomaterials, PVA might form either intramolecular or intermolecular hydrogen bonds with the nanofillers.…”

Section: Tensile Strengthmentioning

confidence: 48%

Preparation and Characterization of Polyvinyl Alcohol-Based Composite Reinforced with Nanocellulose and Nanosilica

et al. 2015

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This work reported the thermomechanical and morphological properties of polyvinyl alcohol (PVA) nanocomposites reinforced with nanosilica and oil palm empty fruit bunches derived nanocellulose. The nanocomposites were characterized by mechanical, thermal, XRD, optical, and morphological studies. Uniformity dispersion of the nanofillers at a 3 wt% concentration has been shown by scanning electron microscopy, whereas the changes in crystallinity were demonstrated by X-ray diffraction analysis. Addition of nanosilica resulted in increased thermal stability of PVA/nanocellulose composites due to the reduction in mobility of the matrix molecules. Visible light transmission showed that the addition of 0.5 wt% nanosilica only slightly reduced the light transmission of PVA/nanocellulose composites with 3 wt% nanocellulose. The addition of a small concentration of nanosilica successfully improved the tensile and modulus properties of PVA/nanocellulose composite films. The increases in tensile strength and thermal stability were evidence of a nanosilica contribution in PVA/nanocellulose composites, inducing reinforcement, as detected by the thermomechanical properties.

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“…This level of oil consumption is extremely challenging because of the limited sources of fossil-based hydrocarbons. Using cellulose resource either wooden or non-wooden material in fiber related industry attracted the attention of green material researchers in recent years [1,2]. The nonwooden plant is the predominant source of highly pure cellulose used for producing diverse micro to nanostructure materials including film, paper, non-woven mat, and fiber [3,4].…”

Section: Introductionmentioning

confidence: 99%

A feasibility study on semi industrial nozzleless electrospinning of cellulose nanofiber

et al. 2015

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The current study focuses on the production of cellulose nanofiber through semi-industrial nozzleless electrospinning process. The cellulose biopolymer used for spinning process was extracted from rice straw as renewable, abundant, and inexpensive natural resource. The electrospinning device comprising one needle is extremely inefficient because of low productivity level of about 0.3 g/h. Thus, using the nozzleless electrospinning system guarantees the high productivity of nanofiber web for diverse applications. The successful electrospinning process is accomplished through systematic control of the surface tension, viscosity, and electric conductivity of aqueous solutions of cellulose. Moreover, a design expert software was used for providing experimental plan for the investigation of the influence of the operational conditions on the spinning properties of the selected solution. The polyvinyl alcohol with a weight ratio of 60 % relative to cellulose content was used as a biocompatible polymer to facilitate electrospinning process for producing the aqueous cellulose solution of 0.63 wt%. Based on the scanning electron microscopy images, and various selected parameters, namely, the drum rotation rate of 9 rpm, high voltage range of ±55 kV, the spinning temperature of 41°C, and 10-cm distance between drum and collector an average diameter of 89 ± 1 nm was arrived. The composite nanofibers used for filter production and their performance were evaluated by porosity analysis and permeability tests. Results show the negative impact of the weak mechanical strength as an obstacle in Penetration test. (It promotes by higher electrospinning time and reaching proper stiffness in web layer.) The permeability tests show a maximum value of 3.5 cm 3 /cm 2 /s at the maximum pressure of 120 Pa.

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Biocomposites from wheat straw nanofibers: Morphology, thermal and mechanical properties

Cited by 583 publications

References 27 publications

Preparation and Characterization of Lemongrass Fiber (Cymbopogon species) for Reinforcing Application in Thermoplastic Composites

Preparation and Characterization of Lemongrass Fiber (Cymbopogon species) for Reinforcing Application in Thermoplastic Composites

Preparation and Characterization of Polyvinyl Alcohol-Based Composite Reinforced with Nanocellulose and Nanosilica

A feasibility study on semi industrial nozzleless electrospinning of cellulose nanofiber

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