Cellulose nanowhiskers from coconut husk fibers: Effect of preparation conditions on their thermal and morphological behavior

Rosa, Morsyleide de Freitas; Medeiros, Eliton S.; Malmonge, José Antônio; Gregorski, Kay S.; Wood, Delilah F.; Mattoso, Luiz H. C.; Glenn, Gregory M.; Orts, William J.; Imam, Syed H.

doi:10.1016/j.carbpol.2010.01.059

Cited by 944 publications

(554 citation statements)

References 37 publications

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“…"Cellulose nanocrystals from agave," BioResources 8(2), 1893-1908. 1899 are similar to those reported on CNCs from other cellulosic sources, such as coconut husk (Rosa et al 2010). …”

Section: Morphological Analysissupporting

confidence: 85%

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Isolation and Characterization of Cellulose Nanocrystals from Agave angustifolia Fibre

Rosli¹,

Ahmad²,

Abdullah³

2013

BioResources

171

151

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Cellulose nanocrystals were extracted from Agave angustifolia fibres by alkali and bleaching treatments followed by acid hydrolysis. The chemical composition of the Agave fibres was determined at different stages of chemical treatment. The structural analysis was carried out by a Fourier Transform Infrared spectroscopy and X-ray diffraction. The morphology and thermal stability of the Agave fibres at different stages of chemical treatment were investigated by field emission scanning electron microscopy and thermogravimetric analysis, respectively. The results indicated that the hemicellulose and lignin were removed extensively from the extracted cellulose. The two peaks at 1735 cm -1 and 1247 cm -1 , which were attributed to the C=O stretching and C-O out of plane stretching vibration of the hemicellulose and lignin in raw Agave, completely disappeared in the spectra of chemically treated fibres. The X-ray diffraction data showed enrichment in the portion of crystalline cellulose from 59% to 82% in the raw and cellulose nanocrystals, respectively. Thermogravimetric analysis showed that the thermal stability improved significantly by various chemical stages. The size reduction of the Agave cellulose into nano-sized particles from 7 µm to 8 nm in diameter by acid hydrolysis was confirmed with transmission electron microscopy images.

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“…"Cellulose nanocrystals from agave," BioResources 8(2), 1893-1908. 1899 are similar to those reported on CNCs from other cellulosic sources, such as coconut husk (Rosa et al 2010). …”

Section: Morphological Analysissupporting

confidence: 85%

“…It allows the removal of the form crystalline nanoparticles. Many researchers have recently used this method to prepare CNCs, from kenaf (Kargarzadeh et al 2012), banana plant (Elanthikkal et al 2010), coconut husk (Rosa et al 2010), rice husk (Johar et al 2012), and sugarcane bagasse (Mandal and Chakrabarty 2011).…”

Section: Introductionmentioning

confidence: 99%

Isolation and Characterization of Cellulose Nanocrystals from Agave angustifolia Fibre

Rosli¹,

Ahmad²,

Abdullah³

2013

BioResources

171

151

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“…Abundance, excellent mechanical properties, biodegradability, and light weight are some of the advantages of nanocellulose based composites. Developing research on the invention of nanocellulose extraction technologies, including chemical reaction [31][32][33], mechanical homogenization [34], ionic liquid treatment, biological process [35], ultrasonic [36] and microwave radiation [37] with various levels of success have been reported. The preparation method of nanocellulose reinforced PVA are usually solution casting, in situ polymerization or electrospinning.…”

Section: Nanocellulose Reinforced Poly(vinyl Alcohol) Compositesmentioning

confidence: 99%

A Review of Natural Fiber Reinforced Poly(Vinyl Alcohol) Based Composites: Application and Opportunity

et al. 2015

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Natural fibers are fine examples of renewable resources that play an important role in the composites industry, which produces superior strength comparable to synthetic fibers. Poly(vinyl alcohol) (PVA) composites in particular have attracted enormous interest in view of their satisfactory performance, properties and biodegradability. Their performance in many applications such as consumer, biomedical, and agriculture is well defined and promising. This paper reviews the utilization of natural fibers from macro to nanoscale as reinforcement in PVA composites. An overview on the properties, processing methods, biodegradability, and applications of these composites is presented. The advantages arising from chemical and physical modifications of fibers or composites are discussed in terms of improved properties and performance. In addition, proper arrangement of nanocellulose in composites helps to prevent agglomeration and results in a better dispersion. The limitations and challenges of the composites and future works of these bio-composites are also discussed. This review concludes that PVA composites have potential for use in numerous applications. However, issues on technological feasibility, environmental effectiveness, and economic affordability should be considered.

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“…Microcrystalline cellulose is a purified and partially depolymerized cellulose, which can be prepared from all forms of natural celluloses (Battista & Smith 1962). Many different sources have been used to prepare cellulose nanocrystals, such as tunicate (Favier et al 1995a(Favier et al , 1995b, wheat straw (Helbert et al 1996), cotton (Ebeling et al 1999), wood fibres (BeckCandanedo et al 2005), sisal (Garcia de Rodriguez et al 2006;Moran et al 2008), flax fiber (Cao et al 2007), ramie (Habibi et al 2008), mulberry (Li et al 2009), coconut husk fibres (Rosa et al 2010), pineapple leaves (Cherian et al 2010), bananas (Deepa et al 2011), kenaf bast fibers , rice husk (Johar et al 2012), rice straw (Lu & Hsieh 2012), mengkuang leaves (pandanus tectorius) ) and pandanus utilis (Chenampulli et al 2013).…”

Section: Introductionmentioning

confidence: 99%

Effects of Silane Surface Treatment of Cellulose Nanocrystals on the Tensile Properties of Cellulose-Polyvinyl chloride Nanocomposite

Sheltami

Kargarzadeh

Abdullah³

2015

JSM

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Cellulose nanowhiskers from coconut husk fibers: Effect of preparation conditions on their thermal and morphological behavior

Cited by 944 publications

References 37 publications

Isolation and Characterization of Cellulose Nanocrystals from Agave angustifolia Fibre

Isolation and Characterization of Cellulose Nanocrystals from Agave angustifolia Fibre

A Review of Natural Fiber Reinforced Poly(Vinyl Alcohol) Based Composites: Application and Opportunity

Effects of Silane Surface Treatment of Cellulose Nanocrystals on the Tensile Properties of Cellulose-Polyvinyl chloride Nanocomposite

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