Chemical-free Extraction of Cotton Stalk Bark Fibers by Steam Flash Explosion

Hou, Xiuliang; Sun, Fangfang; Zhang, Li; Luo, Jun; Lu, Denghong; Yang, Yiqi

doi:10.15376/biores.9.4.6950-6967

Cited by 12 publications

(7 citation statements)

References 39 publications

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“…The Technology Road Map sponsored by the U.S. Department of Energy has a target to achieve 10% of its basic chemical building blocks from plant‐derived renewable sources by 2020 . Bark of cotton stalks is an abundant lignocellulosic byproduct from cotton production and has a cellulose content of about 30–40 wt % . Natural cellulose fibers from bark of cotton stalks, i.e., cotton stalk bark fibers (CSBF), have been extracted by alkaline treatment, 4 steam explosion, 3 successive explosion‐KOH‐H 2 O 2 , and combined bacteria and alkali treatments …”

Section: Introductionmentioning

confidence: 99%

“…It has received substantial attention in the production of bioethanol, biogas, and cellulose fibers from lignocellulose resources. CSBF obtained by steam explosion at the steam pressure of 2.5 MPa for 2 min had similar properties with CSBF after the conventional alkaline treatment . However, CSBF were still coarse (45 dtex) and stiff for textile fibers.…”

Section: Introductionmentioning

confidence: 99%

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Preparation and properties of cotton stalk bark fibers using combined steam explosion and laccase treatment

Hou

Zhang

Wizi

et al. 2017

J of Applied Polymer Sci

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Cotton stalk bark fibers (CSBF) were prepared using combined steam explosion and laccase treatment (explosion–laccase). CSBF have been applied to reinforce thermoplastic composites, but were difficult to be spun into yarns due to their inferior fineness and high stiffness. In order to improve the fineness and flexibility with a green method, explosion–laccase treatment was used to separate bark of cotton stalks. The results indicated that steam explosion at 1.7 MPa for 3 min effectively facilitated laccase penetration into the lignocellulose complex to enhance delignification without negative effects on activity of laccase. Compared with CSBF after explosion, CSBF after explosion–laccase had better fineness (31 dtex), higher aspect ratio (1110), higher tensile strength (2.81 cN/dtex), higher flexibility (321 twist/(m·dtex)), and better thermal stability, which meets the requirement of textile fibers. CSBF had higher water retention (127%) and moisture regain (10.3%) than cotton. Explosion–laccase is an effective and eco‐friendly method of preparing CSBF for textiles. © 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2017, 134, 45058.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Preparation and properties of cotton stalk bark fibers using combined steam explosion and laccase treatment

Hou

Zhang

Wizi

et al. 2017

J of Applied Polymer Sci

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“…Reddy and Yang (2009) first extracted CSBF with coarse fineness of 51.0 dtex and high lignin content of 13.7% using 8 wt% alkali at 90℃ (method of alkali at atmospheric pressure). The steam explosion method was studied for extracting CSBF with a fineness of 45 dtex (Hou et al, 2014b). CSBF prepared from combined treatments with steam explosion, potassium hydroxide and peroxide (method of Explosion-alkali-H 2 O 2 ) had fineness reduced to 27 dtex, but the lignin content remained as high as 11.8 wt% (Dong et al, 2014;Hou et al, 2014a).…”

Section: Introductionmentioning

confidence: 99%

Preparation and properties of cotton stalk bark fibers and their cotton blended yarns and fabrics

Dong

Hou

Haigler

et al. 2016

Journal of Cleaner Production

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Cotton stalk bark fibers (CSBF) with low lignin content were prepared from combined treatments with bacteria and alkali, processed into blended yarns and knitted fabrics, and dyed with reactive dyes. CSBF previously extracted using alkali and peroxide at atmospheric pressure were coarse (>45 dtex) or contained high lignin content (>11.8%), which limited their industrial applications in textiles. We found that alkali removed lignin more thoroughly at 130℃, especially with the assistance of bacteria pretreatment. Fibers after bacteria and alkali treatments had fineness reduced to 24.0 dtex and lignin content decreased to 3%. CSBF/cotton blended yarns from our CSBF had better evenness and breaking strength than jute/cotton blends. Fabrics from CSBF/cotton blended yarns had higher bursting strength, softer and smoother handle compared to the fabrics of jute/cotton blends. Dye sorption of Reactive Red 120 on CSBF was 15.7% higher than that on cotton. Dyed fabric of CSBF/cotton blends had the same laundering and light colorfastness, but slightly lower staining and wet crocking colorfastness than 100% cotton fabric. Overall, CSBF in our study could be used as a good alternative to traditional bast fibers for highly valuable textile applications. The research results will not only enhance the sustainability of fiber industry but also alleviate the environmental pressure.

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“…Cellulose is nature’s most lavishly available polymer. Highly purified cellulose fibre is been isolated from several plant sources, such as branch barks of mulberry (Li et al 2009 ), pineapple leaf fibres (Cherian et al 2010 ; Mangal et al 2003 ), pea hull fibre (Chen et al 2009 ), coconut husk fibres (Rosa et al 2010 ), banana rachis (Zuluaga et al 2009 ), sugar beet (Dinand et al 1999 ; Dufresne et al 1997 ), wheat straw (Kaushik and Singh 2011 ), palm leaf sheath (Maheswari et al 2012 ), Arundo donax L stem (Fiore et al 2014 ), cotton stalk (Hou et al 2014 ).…”

Section: Introductionmentioning

confidence: 99%

Biofibres from biofuel industrial byproduct—Pongamia pinnata seed hull

Manjula

Srinikethan

Shetty

2017

Bioresour. Bioprocess.

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BackgroundBiodiesel production using Pongamia pinnata (P. pinnata) seeds results in large amount of unused seed hull. These seed hulls serve as a potential source for cellulose fibres which can be exploited as reinforcement in composites.MethodsThese seed hulls were processed using chlorination and alkaline extraction process in order to isolate cellulose fibres. Scanning electron microscopy (SEM), dynamic light scattering (DLS), thermogravimetric analysis (TGA), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR) and nuclear magnetic resonance spectroscopy (NMR) analysis demonstrated the morphological changes in the fibre structure.ResultsCellulose microfibres of diameter 6–8 µm, hydrodynamic diameter of 58.4 nm and length of 535 nm were isolated. Thermal stability was enhanced by 70 °C and crystallinity index (CI) by 19.8% ensuring isolation of crystalline cellulose fibres.ConclusionThe sequential chlorination and alkaline treatment stemmed to the isolation of cellulose fibres from P. pinnata seed hull. The isolated cellulose fibres possessed enhanced morphological, thermal, and crystalline properties in comparison with P. pinnata seed hull. These cellulose microfibres may potentially find application as biofillers in biodegradable composites by augmenting their properties.

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Chemical-free Extraction of Cotton Stalk Bark Fibers by Steam Flash Explosion

Cited by 12 publications

References 39 publications

Preparation and properties of cotton stalk bark fibers using combined steam explosion and laccase treatment

Preparation and properties of cotton stalk bark fibers using combined steam explosion and laccase treatment

Preparation and properties of cotton stalk bark fibers and their cotton blended yarns and fabrics

Biofibres from biofuel industrial byproduct—Pongamia pinnata seed hull

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