Characterization of new natural cellulosic fiber from Lygeum spartum L.

Belouadah, Zouheyr; Ati, Abdelaziz; Rokbi, Mansour

doi:10.1016/j.carbpol.2015.08.024

Cited by 298 publications

(170 citation statements)

References 37 publications

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“…It can be deduced that the addition of the FRs caused an early thermal decomposition reaction of the composite panel relative to 0%WSPC. It also shows that the 12%APP‐GAP addition decomposed faster as indicated by the transition temperatures (T 0 , T E ) in Table , which, according to several reports, is attributed to water vaporization of the wood at the initial stage of the decomposition and at the end of the decomposition hemicellulose and glycosidic linkages of cellulose . This trend is followed by 12%ATH nonhybrid FR and then 18%ATH/APP‐GAP hybrid FR panels.…”

Section: Resultssupporting

confidence: 59%

“…From the TGA Table 3, which, according to several reports, is attributed to water vaporization of the wood at the initial stage of the decomposition and at the end of the decomposition hemicellulose and glycosidic linkages of cellulose. [39][40][41][42] 47 In this study, 18%ATH/APP-GAP addition in the WSPC panel shifted slightly to a higher temperature relative to 0%WSPC, which indicates an improved thermal stability. Furthermore, the residual mass (Rm) was observed to increase with increase in FR addition at the end of the test (900°C).…”

Section: Thermal Propertiesmentioning

confidence: 50%

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Impact of hybrid flame retardant on the flammability and thermomechanical properties of wood sawdust polymer composite panel

2019

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Summary Wood‐based polymer composites represent a growing interest in the building industry. The fire response of this composite type is a concern to many end users. This study utilizes wood sawdust as reinforcement to develop flame retarded wood sawdust polyester composite (WSPC) panel. Flame retardant (FR) chemicals such as aluminium tri‐hydroxide (ATH), intumescent FR (ammonium polyphosphate [APP] Gum Arabic Powder [GAP]), and the combination of ATH and APP‐GAP (hybrid) at 0%, 12%, and 18% were used to modify the WSPC panel using hand lay‐up compression moulding technique. Tensile and flexural properties, thermal and flammability properties, and macroscopic image observations (MIOs) were examined using universal testing machine, thermogravimetric analysis (TGA/DSC), and the cone calorimeter apparatus (CCA), respectively. The results obtained show that the added nonhybrid FR in the WSPC panel enhanced the tensile and flexural strength while a reduction in the tensile modulus was observed. In the thermal stability, TGA analysis reveals that the added hybrid FR did not exhibit significant change in the thermal stability of the WSPC panel while cone calorimeter results show significant improvement in some fire properties. It can be concluded that the hybrid FR when incorporated in WSPC panel can be of great benefit to the building industry.

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Section: Resultssupporting

confidence: 59%

Section: Thermal Propertiesmentioning

confidence: 50%

Impact of hybrid flame retardant on the flammability and thermomechanical properties of wood sawdust polymer composite panel

2019

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“…7). The results showed that the peach palm fiber was thermally stable up to 280 °C, which was similar to other natural fibers (d' Almeida et al 2006;De Souza and d'Almeida 2014;Belouadah et al 2015;Porras et al 2015).…”

Section: X-ray Diffraction and Tga Analysissupporting

confidence: 63%

“…The peach palm fiber had an average tensile strength of 213.5 MPa and a Young's modulus of 10.8 GPa when the total area was used (area taking into account all voids). This behavior was compared to that of other natural fibers, such as piassava (d 'Almeida et al 2006), coir (Defoirdt et al 2010;Ferreira et al 2014), jute (Fidelis et al 2013), sisal (Silva et al 2008), curauá (Tomczak et al 2007;Spinacé et al 2009), bamboo (Prasad andRao 2011), okra (De Rosa et al 2010), Lygeum spartum L. (Belouadah et al 2015), banana (Prasad and Rao 2011), alpha (Brahim and Cheikh 2007), and hemp (Jayaramudu et al 2010).…”

Section: Fiber Mechanical Behaviormentioning

confidence: 99%

Effect of Peach Palm Fiber Microstructure on its Tensile Behavior

2016

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This paper presents the results of an experimental investigation into the mechanical behavior and microstructural characteristics of peach palm fibers. The fiber morphology was studied using a scanning electron microscope (SEM), and the results of the mechanical tests were correlated with the fiber microstructure. The specimens were submitted to direct tensile tests in a state-of-the art microforce testing system using three different gauge lengths. The cross sectional areas of the fibers were measured using SEM micrographs and image analysis. The fiber microstructural characteristics were determined via thermogravimetric analysis and X-ray diffraction. The measured Young's modulus was corrected for machine compliance. Weibull statistics were used to quantify the degree of variability in fiber strength at the different gauge lengths. The failure mechanisms were described and discussed in terms of the fiber microstructure, as well as defects in the fiber. The results showed that the fiber void content had a large influence on the fiber tensile strength and elastic modulus but the amount of main voids did not influence the fiber strength.

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“…Similarly, it is observed from To determine the functional groups present in the CIF, the FT-IR analysis was conducted on the prepared samples and the results are presented in Fig. 6 and Table 2 [18][19][20][21][22]. Thermal characteristics of the CIF were studied using TG and DTG curves obtained from the thermogravimetry analysis as shown in Fig.…”

Section: Physicochemical Properties Of Cifmentioning

confidence: 99%

Physicochemical and mechanical properties of natural cellulosic fiber from Coccinia Indica and its epoxy composites

Mylsamy¹,

Sampath²,

Balu

et al. 2019

Polimery

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This paper reports on the physicochemical, and mechanical characterization of Coccinia Indica (CI) fiber. The Coccinia Indica fiber (CIF) reinforced epoxy composite is fabricated using a compression molding process. The results of the chemical analysis of CIF showed that the fiber contained more cellulose and skimpy lignin, ash, and wax content. Scanning electron microscopy (SEM) analysis revealed that the fiber possessed a multicellular structure. The Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction (XRD) studies revealed that CIF shows a crystallinity index of 30%. The thermogravimetric analysis (TGA) indicated that the major degradation of fibers occurred in the temperature range of 204.2 °C to 376.3 °C. The various mechanical test results showed that the tensile, flexural and impact strength increased with increase in fiber length and weight percentage. The maximum properties were found at 30 mm fiber length and 35% of fiber loading. The SEM fractography result showed that the predominant mechanism for mechanical failure was due to fiber pull out, matrix fracture and fiber fracture. Właściwości fizykochemiczne i mechaniczne naturalnych celulozowych włókien Coccinia Indica i ich kompozytów na osnowie żywicy epoksydowejStreszczenie: Oceniono fizykochemiczne i mechaniczne właściwości celulozowych włókien Coccinia Indica (CIF). Kompozyty na osnowie żywicy epoksydowej wzmocnionej CIF wytwarzano w procesie wytłaczania. Na podstawie analizy chemicznej stwierdzono, że włókna CIF zawierają dużą część celulozy i niewielką ligniny, popiołu i wosku. Metodą skaningowej mikroskopii elektronowej (SEM) wykazano, że włókna CI mają strukturę wielokomórkową. Na podstawie wyników spektroskopii w podczerwieni z transformacją Fouriera (FT-IR) i dyfrakcji rentgenowskiej (XRD) stwierdzono, że stopień krystaliczności CIF wynosi 30%. Analiza termograwimetryczna (TGA) wykazała, że główna degradacja włókien zachodzi w temperaturze z zakresu 204,2-376,3 °C. Wyniki testów mechanicznych dowodzą, że wartości wytrzymałości na rozciąganie, zginanie i uderzenie zwiększały się wraz z długością włókien i ich zawartością w kompozycie. Maksymalnymi wartościami właściwości odznaczał się kompozyt na bazie żywicy epoksydowej napełnionej 35% mas. włókien Coccinia Indica o długości 30 mm. Wyniki analizy SEM wykazały, że decydujący wpływ na uszkodzenie mechaniczne miało wyciąganie włókien, pękanie osnowy i pękanie włókien.Słowa kluczowe: włókna Coccinia Indica, kompozyty z naturalnymi włóknami, zawartość włókien, długość wlókien.

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Characterization of new natural cellulosic fiber from Lygeum spartum L.

Cited by 298 publications

References 37 publications

Impact of hybrid flame retardant on the flammability and thermomechanical properties of wood sawdust polymer composite panel

Impact of hybrid flame retardant on the flammability and thermomechanical properties of wood sawdust polymer composite panel

Effect of Peach Palm Fiber Microstructure on its Tensile Behavior

Physicochemical and mechanical properties of natural cellulosic fiber from Coccinia Indica and its epoxy composites

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