Water flux through blends from waste materials: Cellulose acetate (from sugar cane bagasse) with polystyrene (from plastic cups)

Filho, Guimes Rodrigues; Silva, Ricardo Chagas da; Meireles, Carla da Silva; Assunção, Rosana Maria Nascimento de; Otaguro, Harumi

doi:10.1002/app.21474

Cited by 25 publications

(9 citation statements)

References 10 publications

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“…CA synthesis followed the methodology by Filho et al . In a jacketed reactor, 25 mL of glacial acetic acid was added to 1.0 g of bleached RM.…”

Section: Methodsmentioning

confidence: 99%

“…Thus, lignocellulosic biomass from agroindustrial waste is an attractive alternative because it offers high and low‐cost availability . Many researchers have been focusing on CA synthesis from alternative sources provided by discarded industrial waste such as sugar cane bagasse , rice husk , wheat straw , and corn husk . Large‐scale palm tree crops cultivated for palm heart production purposes have been popular since the early 1990s.…”

Section: Introductionmentioning

confidence: 99%

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Synthesis and characterization of cellulose acetate from royal palm tree agroindustrial waste

Battisti

Hafemann

Claumann

et al. 2018

Polymer Engineering & Sci

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This study provides a novel value‐added utilization of the agroindustrial waste of royal palm tree leaf sheath to produce cellulose acetate. One of the motivations of this work was the fact that Brazil is one of the largest heart of palm producers in the world. However, as a result of extraction and processing, tons of waste are generated and discharged to the environment. Such waste is rich in lignocellulosic material, which could be reused to obtain derivatives of interest and commercial value. The synthesis of cellulose acetate was performed through a homogeneous acetylation reaction. Three different conditions were tested for delignification of the raw material, which resulted in a reduction in lignin content from 17.75 to 7.72%. The highest yield of cellulose acetate reached 99.5%, with degree of substitutions ranging between 2.08 and 2.82, which indicates satisfactory conversion. The Fourier transform infrared spectrum showed that practically all hydroxyl groups were replaced by acetate groups; this was also confirmed by nuclear magnetic resonance analysis. X‐ray diffraction analysis showed that the cellulose acetate crystallinity index was 8.9%. This demonstrates the viable potential of cellulose acetate production with low cost and use of highly available agroindustrial waste. POLYM. ENG. SCI., 59:891–898, 2019. © 2018 Society of Plastics Engineers

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“…CA synthesis followed the methodology by Filho et al . In a jacketed reactor, 25 mL of glacial acetic acid was added to 1.0 g of bleached RM.…”

Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Synthesis and characterization of cellulose acetate from royal palm tree agroindustrial waste

Battisti

Hafemann

Claumann

et al. 2018

Polymer Engineering & Sci

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“…A representative DSC thermogram of the second scan for CA films is shown in Figure 3(a). The melting temperature ( ) is centered at 216 ∘ C whereas the glass transition temperature ( ) is located at 177 ∘ C, transitions which have been reported somewhere else [45][46][47]. Nevertheless, CA with different degrees of acetylation shows values between 190 and 220 ∘ C [48,49] and a higher DS causes a lower possibility of forming hydrogen bonding and consequently a lower is manifested [50].…”

Section: Differential Scanning Calorimetry (Dsc)mentioning

confidence: 98%

Preparation and Characterization of a Bioartificial Polymeric Material: Bilayer of Cellulose Acetate-PVA

Bernal-Ballén

Kuřitka²,

Sáha³

2016

International Journal of Polymer Science

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A new bioartificial polymeric material consisting of a bilayer of cellulose acetate and poly(vinyl alcohol) was successfully obtained by casting method. The material was characterized by Fourier transform infrared spectroscopy, contact angle, scanning electron microscopy, differential scanning calorimetry, gas permeability, water vapor permeability, and mechanical properties. The characterization indicates that two distinct and well-differentiated surfaces were achieved without detriment to the bulk properties. The interaction between natural and synthetic polymers indeed enhanced the gas permeability as well as the water vapor permeability in comparison to the original components, although mechanical properties were not substantially boosted by the combination of both. Moreover, beyond the interface, there were no detected interactions between the polymers as can be evidenced by the presence of a uniqueTgin the bilayer. The amalgamation of the relatively good mechanical properties with the two differentiated surfaces and the improvement of the permeability properties could indicate the potential of the material for being used in medicine.

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“…8 Several cellulose derivatives can be produced from the chemical recycling of sugarcane bagasse, such as cellulose acetate, methyl cellulose, and cellulose sulfoacetate (CSA). [9][10][11] The cellulose derivatives have in common increased solubility in most organic solvents. The latter can be applied to a number of industrial processes, such as the recovery of heavy oils, effluent treatment, and concrete additives in civil construction.…”

Section: Introductionmentioning

confidence: 99%

Application of cellulose sulfoacetate obtained from sugarcane bagasse as an additive in mortars

Nascimento

Filho

Frigoni

et al. 2011

J of Applied Polymer Sci

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In this study, cellulose sulfoacetate (CSA) was produced with cellulose extracted from sugarcane bagasse with sulfuric acid as a catalyst under homogenous conditions so that the derivative could be applied as an additive for mortar of Portland (Cimento Portland de alta resistência inicial, CPV-ARI) cement. The IR spectra showed that only precipitate C presented the characteristic band of sulfate groups (807 cm À1) and was, therefore, the sulfoacetylated derivative. CSA presented a degree of acetylation of 2.70 and a degree of sulfonation of 0.063, and the presence of sulfate groups in the derivative displaced the position of C(6) to a lower field in the 13 C-NMR spectrum and influenced reduced viscosity as a function of concentration. The evaluation of CSA as an additive showed that for a polymer/cement ratio of 0.6%, an increase of 13.80% was achieved consistently, and an increase of 21.05% in the potential tensile of adhesion strength was also achieved.

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Water flux through blends from waste materials: Cellulose acetate (from sugar cane bagasse) with polystyrene (from plastic cups)

Cited by 25 publications

References 10 publications

Synthesis and characterization of cellulose acetate from royal palm tree agroindustrial waste

Synthesis and characterization of cellulose acetate from royal palm tree agroindustrial waste

Preparation and Characterization of a Bioartificial Polymeric Material: Bilayer of Cellulose Acetate-PVA

Application of cellulose sulfoacetate obtained from sugarcane bagasse as an additive in mortars

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