Starch composites reinforced by bamboo cellulosic crystals

Liu, Dagang; Zhong, Tuhua; Chang, Peter R.; Li, Kaifu; Wu, Qinglin

doi:10.1016/j.biortech.2009.11.058

Cited by 281 publications

(114 citation statements)

References 35 publications

Supporting

Mentioning

101

Contrasting

Unclassified

Order By: Relevance

“…3. In the XRD pattern of the untreated cellulose, diffraction peaks appear at 2θ = 15.5º, 22.3º, and 34.6º, which are consistent with the typical diffraction peaks of cellulose in the I crystalline form (Lin et al 2009;Liu et al 2010). However, in the XRD pattern of SBC-g-PSMA, the typically intense diffraction peak at 2θ = 34.6º belonging to cellulose disappeared, and only weak peaks at 15.5º and 22.3º are seen.…”

Section: Characterizationsupporting

confidence: 68%

Optimization Synthesis Conditions and Characterization of Oil Biosorbent: Sugarcane Bagasse Cellulose-Graft-Polystearylmethacrylate Copolymer

Shi-min¹,

Zhang²,

Zhu³

et al. 2015

BioResources

View full text Add to dashboard Cite

Section: Characterizationsupporting

confidence: 68%

Optimization Synthesis Conditions and Characterization of Oil Biosorbent: Sugarcane Bagasse Cellulose-Graft-Polystearylmethacrylate Copolymer

Shi-min¹,

Zhang²,

Zhu³

et al. 2015

BioResources

View full text Add to dashboard Cite

“…This enhancement was also related to the higher crystallinity (Liu et al 2010). Cellulose nanocrystals also have high surface area to volume ratios (Eichhorn et al 2010).…”

Section: Mechanical Propertiesmentioning

confidence: 95%

Biodegradable Composite Films based on κ-carrageenan Reinforced by Cellulose Nanocrystal from Kenaf Fibers

Zarina¹,

Ahmad²

2014

BioResources

View full text Add to dashboard Cite

Through alkali treatment, bleaching, and sulfuric acid hydrolysis, cellulose nanocrystals (CNCs) were prepared from kenaf fibers and were used as reinforcement materials in biocomposites based on κ-carrageenan. Biocomposites in the form of films were prepared by solution casting of a mixture of κ-carrageenan, glycerol, and various amounts of CNCs (0 to 8 wt%). Fourier transform infrared spectroscopy (FTIR) revealed that alkali treatment followed by bleaching totally removed lignin and hemicellulose from the kenaf. Morphological analysis of the fibers, cellulose, and κ-carrageenan of biocomposite films were carried out using field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM). The effects of filler content on the mechanical and thermal stability of the k-carrageenan biocomposite films were analyzed through tensile strength measurements and thermogravimetric analysis (TGA). At an optimum CNC content of 4%, the κ-carrageenan biocomposite films showed good dispersion, superior mechanical properties, and improved thermal stability.

show abstract

“…Due to these features, NCP can be used as a high-quality reinforcing filler for polymers and biodegradable materials, strengthening additive for papers, thickener for dispersions, as well as drug carrier and implant, etc. [4][5][6][7][8][9][10][11][12]. These particles can be made by treatment of initial cellulose samples with concentrated sulfuric acid (SA) at various temperatures and following mechanical or ultrasound disintegration of the acid-treated cellulose in water [2,[13][14][15][16][17][18][19][20][21].…”

Section: Introductionmentioning

confidence: 99%

Optimal Conditions for Isolation of Nanocrystalline Cellulose Particles

Ioelovich¹

2012

114

View full text Add to dashboard Cite

Nanocrystalline cellulose particles are new class of cellulose materials that can find the wide application in various technical areas, biotechnology and medicine. The nanoparticles are usually made by treatment or initial cellulose samples with concentrated sulfuric acid (SA) at various temperatures and following mechanical or ultrasound disintegration. Unfortunately, conditions of existing methods for preparation of nanocellulose are multifarious and give both crystalline and amorphous nanoparticles. Therefore in this paper the optimal conditions for obtaining just of nanocrystalline cellulose particles (NCP) have been studied. The experiment showed that isolation of NCP is carried out in narrow interval of the acid concentration: from 50 to about 61 wt. %. If concentration of SA is less than 50 wt. % then micro-scale particles are isolated. On the other hand, if concentration of SA is higher than 63 wt. % the cellulose completely dissolves, and as a result instead of nanocrystalline the amorphous particles are formed with decreased yield. In the range of the acid concentration from 55 to 61 wt. %, a low decrystallization of the initial cellulose is taken place that contributes to forming of rod-like nanocrystalline cellulose particles. The following optimal conditions of the acidic treatment for isolation of NCP were proposed: concentration of sulfuric acid 57-60 wt. %, acid to cellulose ratio 8-10, temperature [45][46][47][48][49][50][51][52][53][54][55] o C, time 40-60 min. These optimal conditions in combination with the high-power disintegration permit obtaining the rod-like nanocrystalline cellulose particles (150-200 x 10-20 nm) with the increased yield (70-75%).

show abstract

Starch composites reinforced by bamboo cellulosic crystals

Cited by 281 publications

References 35 publications

Optimization Synthesis Conditions and Characterization of Oil Biosorbent: Sugarcane Bagasse Cellulose-Graft-Polystearylmethacrylate Copolymer

Optimization Synthesis Conditions and Characterization of Oil Biosorbent: Sugarcane Bagasse Cellulose-Graft-Polystearylmethacrylate Copolymer

Biodegradable Composite Films based on κ-carrageenan Reinforced by Cellulose Nanocrystal from Kenaf Fibers

Optimal Conditions for Isolation of Nanocrystalline Cellulose Particles

Contact Info

Product

Resources

About