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Sumarago EC, dela Cerna MFM, Leyson AKB, Tan NPB, Magsico KF. Production and Characterization of Nanocellulose from Maguey ( Agave cantala) Fiber. Polymers (Basel) 2024; 16:1312. [PMID: 38794505 PMCID: PMC11125682 DOI: 10.3390/polym16101312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/29/2024] [Revised: 04/27/2024] [Accepted: 04/29/2024] [Indexed: 05/26/2024] Open
Abstract
Plant fibers have been studied as sources of nanocellulose due to their sustainable features. This study investigated the effects of acid hydrolysis parameters, reaction temperature, and acid concentration on nanocellulose yield from maguey (Agave cantala) fiber. Nanocellulose was produced from the fibers via the removal of non-cellulosic components through alkali treatment and bleaching, followed by strong acid hydrolysis for 45 min using sulfuric acid (H2SO4). The temperature during acid hydrolysis was 30, 40, 50, and 60 °C, and the H2SO4 concentration was 40, 50, and 60 wt. % H2SO4. Results showed that 53.56% of raw maguey fibers were isolated as cellulose, that is, 89.45% was α-cellulose. The highest nanocellulose yield of 81.58 ± 0.36% was achieved from acid hydrolysis at 50 °C using 50 wt. % H2SO4, producing nanocellulose measuring 8-75 nm in diameter and 72-866 nm in length, as confirmed via field emission scanning electron microscopy (FESEM) and transmission electron microscopy (TEM) analysis. Fourier-transform infrared spectroscopy (FTIR) analysis indicated the chemical transformation of fibers throughout the nanocellulose production process. The zeta potential analysis showed that the nanocellulose had excellent colloidal stability with a highly negative surface charge of -37.3 mV. Meanwhile, X-ray diffraction (XRD) analysis validated the crystallinity of nanocellulose with a crystallinity index of 74.80%. Lastly, thermogravimetric analysis (TGA) demonstrated that the inflection point attributed to the cellulose degradation of the produced nanocellulose is 311.41 °C.
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Affiliation(s)
- Erwin C. Sumarago
- Department of Chemical Engineering, University of San Carlos, Cebu City 6000, Philippines; (E.C.S.); (M.F.M.d.C.); (A.K.B.L.)
| | - Mary Frahnchezka M. dela Cerna
- Department of Chemical Engineering, University of San Carlos, Cebu City 6000, Philippines; (E.C.S.); (M.F.M.d.C.); (A.K.B.L.)
| | - Andrea Kaylie B. Leyson
- Department of Chemical Engineering, University of San Carlos, Cebu City 6000, Philippines; (E.C.S.); (M.F.M.d.C.); (A.K.B.L.)
| | - Noel Peter B. Tan
- Center for Advanced New Materials, Engineering, and Emerging Technologies (CANMEET), University of San Agustin, Iloilo City 5000, Philippines;
| | - Kendra Felizimarie Magsico
- Center for Advanced New Materials, Engineering, and Emerging Technologies (CANMEET), University of San Agustin, Iloilo City 5000, Philippines;
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2
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De Sá IC, De Oliveira PM, Nossol E, Borges PHS, Lepri FG, Semaan FS, Dornellas RM, Pacheco WF. Modified dry bean pod waste (Phaseolus vulgaris) as a biosorbent for fluorescein removal from aqueous media: Batch and fixed bed studies. JOURNAL OF HAZARDOUS MATERIALS 2022; 424:127723. [PMID: 34823949 DOI: 10.1016/j.jhazmat.2021.127723] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2021] [Revised: 10/29/2021] [Accepted: 11/04/2021] [Indexed: 06/13/2023]
Abstract
This study presents the use of dry bean pods as a solid phase for fluorescein removal from water. The non-pretreated solid phase did not display any sorption properties for the chosen dye. However, interesting sorption properties were observed following a chemical derivative treatment with nitric acid. The study was carried out using both batch and column approaches. Regarding the batch study, all parameters that influence sorption capacity, such, as pH, adsorbent mass, ionic strength, temperature and contact time, were evaluated. A sorptive capacity of 36.80 mg g-1 was obtained in the optimized condition. In the fixed column bed study, the influence of particle size, flow rate and initial concentration of the dye were evaluated through breakthrough curves and a sorptive capacity of 4.35 mg g-1 was obtained. Thermodynamic studies revealed that the adsorption is exothermic and spontaneous. Four different models, Langmuir, Freundlich, Temkin and Redlich-Patterson, were employed. The Akaike information criterion (AIC) was employed to rank the best equilibrium model, which was determined as the Freundlich isotherm. The method was applied to a real sample and the same removal rate was obtained, thus indicating its suitability to wastewater treatment.
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Affiliation(s)
- Igor C De Sá
- Universidade Federal Fluminense, Departamento de Química Analítica, Outeiro São João Batista s/n, Centro, Niterói, RJ, Brazil
| | - P M De Oliveira
- Universidade Federal Fluminense, Departamento de Química Analítica, Outeiro São João Batista s/n, Centro, Niterói, RJ, Brazil
| | - E Nossol
- Universidade Federal de Uberlândia, Instituto de Química, Av. João Naves de Ávila, 2121, Uberlândia, MG, Brazil
| | - P H S Borges
- Universidade Federal de Uberlândia, Instituto de Química, Av. João Naves de Ávila, 2121, Uberlândia, MG, Brazil
| | - Fábio G Lepri
- Universidade Federal Fluminense, Departamento de Química Analítica, Outeiro São João Batista s/n, Centro, Niterói, RJ, Brazil
| | - F S Semaan
- Universidade Federal Fluminense, Departamento de Química Analítica, Outeiro São João Batista s/n, Centro, Niterói, RJ, Brazil
| | - R M Dornellas
- Universidade Federal Fluminense, Departamento de Química Analítica, Outeiro São João Batista s/n, Centro, Niterói, RJ, Brazil
| | - W F Pacheco
- Universidade Federal Fluminense, Departamento de Química Analítica, Outeiro São João Batista s/n, Centro, Niterói, RJ, Brazil.
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Nurazzi NM, Asyraf MRM, Rayung M, Norrrahim MNF, Shazleen SS, Rani MSA, Shafi AR, Aisyah HA, Radzi MHM, Sabaruddin FA, Ilyas RA, Zainudin ES, Abdan K. Thermogravimetric Analysis Properties of Cellulosic Natural Fiber Polymer Composites: A Review on Influence of Chemical Treatments. Polymers (Basel) 2021; 13:polym13162710. [PMID: 34451248 PMCID: PMC8399699 DOI: 10.3390/polym13162710] [Citation(s) in RCA: 65] [Impact Index Per Article: 21.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/22/2021] [Revised: 07/30/2021] [Accepted: 08/09/2021] [Indexed: 12/19/2022] Open
Abstract
Natural fiber such as bamboo fiber, oil palm empty fruit bunch (OPEFB) fiber, kenaf fiber, and sugar palm fiber-reinforced polymer composites are being increasingly developed for lightweight structures with high specific strength in the automotive, marine, aerospace, and construction industries with significant economic benefits, sustainability, and environmental benefits. The plant-based natural fibers are hydrophilic, which is incompatible with hydrophobic polymer matrices. This leads to a reduction of their interfacial bonding and to the poor thermal stability performance of the resulting fiber-reinforced polymer composite. Based on the literature, the effect of chemical treatment of natural fiber-reinforced polymer composites had significantly influenced the thermogravimetric analysis (TGA) together with the thermal stability performance of the composite structure. In this review, the effect of chemical treatments used on cellulose natural fiber-reinforced thermoplastic and thermosetting polymer composites has been reviewed. From the present review, the TGA data are useful as guidance in determining the purity and composition of the composites’ structures, drying, and the ignition temperatures of materials. Knowing the stability temperatures of compounds based on their weight, changes in the temperature dependence is another factor to consider regarding the effectiveness of chemical treatments for the purpose of synergizing the chemical bonding between the natural fiber with polymer matrix or with the synthetic fibers.
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Affiliation(s)
- N. M. Nurazzi
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia; (N.M.N.); (S.S.S.); (A.R.S.); (M.H.M.R.)
- Centre for Defence Foundation Studies, Universiti Pertahanan Nasional Malaysia (UPNM), Kem Perdana Sungai Besi, Kuala Lumpur 57000, Malaysia
| | - M. R. M. Asyraf
- Department of Aerospace Engineering, Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia;
| | - M. Rayung
- Faculty of Science, Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia;
| | - M. N. F. Norrrahim
- Research Centre for Chemical Defence, Universiti Pertahanan Nasional Malaysia (UPNM), Kuala Lumpur 57000, Malaysia;
| | - S. S. Shazleen
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia; (N.M.N.); (S.S.S.); (A.R.S.); (M.H.M.R.)
| | - M. S. A. Rani
- School of Materials and Minerals Resources Engineering, Engineering Campus, Universiti Sains Malaysia, Nibong Tebal 14300, Penang, Malaysia;
| | - A. R. Shafi
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia; (N.M.N.); (S.S.S.); (A.R.S.); (M.H.M.R.)
| | - H. A. Aisyah
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia; (N.M.N.); (S.S.S.); (A.R.S.); (M.H.M.R.)
- Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia
- Correspondence: (H.A.A.); (F.A.S.); (E.S.Z.); (K.A.)
| | - M. H. M. Radzi
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia; (N.M.N.); (S.S.S.); (A.R.S.); (M.H.M.R.)
- Faculty of Engineering Technology, Universiti Malaysia Perlis, Padang Besar 02100, Perlis, Malaysia
| | - F. A. Sabaruddin
- Faculty of Biotechnology and Biomolecular Sciences, Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia
- Correspondence: (H.A.A.); (F.A.S.); (E.S.Z.); (K.A.)
| | - R. A. Ilyas
- School of Chemical and Energy Engineering, Faculty of Engineering, Universiti Teknologi Malaysia (UTM), Skudai 81310, Johor, Malaysia;
| | - E. S. Zainudin
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia; (N.M.N.); (S.S.S.); (A.R.S.); (M.H.M.R.)
- Department of Mechanical and Manufacturing Engineering, Faculty of Engineering, Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia
- Correspondence: (H.A.A.); (F.A.S.); (E.S.Z.); (K.A.)
| | - K. Abdan
- Institute of Tropical Forestry and Forest Products (INTROP), Universiti Putra Malaysia (UPM), Seri Kembangan 43400, Selangor, Malaysia; (N.M.N.); (S.S.S.); (A.R.S.); (M.H.M.R.)
- Correspondence: (H.A.A.); (F.A.S.); (E.S.Z.); (K.A.)
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Pretreatment of Mango (Mangifera indica L. Anacardiaceae) Seed Husk for Bioethanol Production by Dilute Acid Treatment and Enzymatic Hydrolysis. Appl Biochem Biotechnol 2020; 193:1338-1350. [PMID: 32888162 DOI: 10.1007/s12010-020-03387-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Accepted: 07/16/2020] [Indexed: 10/23/2022]
Abstract
One of the targets of the Sustainable Development Goals is clean and affordable energy. This is also the aim of the Biofuels Act of 2007 in the Philippines. However, this law is confronted with challenges such as the limitation of lignocellulosic feedstock, specifically available for bioethanol production. The present study sought to address the issue by exploring the potential of mango seed husk (MSH), a by-product of the mango industry, in bioethanol production. MSH is considered a waste material and its utilization also permit value-addition as this can serve as an alternative and affordable source of feedstock in energy production. Two pretreatment strategies are employed to exploit the cellulose and hemicellulose content of MSH, namely, dilute acid treatment and enzymatic hydrolysis. Results show that the %H2SO4 resulting in the highest glucose concentration and yield is 4% v/v at 95 °C hydrolysis temperature, 1:10 (w/v) solid-to-solvent ratio, and 60-min hydrolysis time. For enzymatic hydrolysis using a commercial enzyme preparation, the reaction time up to 72 h did not affect glucose concentration and yield at the following conditions: 50 °C hydrolysis temperature, 150 rpm, pH 5.0, 10% solids loading, and 4% enzyme loading. This could be attributed to the lignin and non-structural compounds present in MSHs. However, a combined process strategy of dilute acid pretreatment followed by enzymatic hydrolysis in the pretreatment of MSH contributes to an increased concentration and yield of sugars in the hydrolysates, which is advantageous for bioethanol production. Graphical Abstract.
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5
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Bioconversion of rice straw by synergistic effect of in-house produced ligno-hemicellulolytic enzymes for enhanced bioethanol production. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.biteb.2019.100352] [Citation(s) in RCA: 37] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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6
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Sommerauer L, Grzybek J, Elsaesser MS, Benisek A, Sepperer T, Dachs E, Hüsing N, Petutschnigg A, Tondi G. Furfuryl Alcohol and Lactic Acid Blends: Homo- or Co-Polymerization? Polymers (Basel) 2019; 11:E1533. [PMID: 31547001 PMCID: PMC6835956 DOI: 10.3390/polym11101533] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2019] [Revised: 09/06/2019] [Accepted: 09/10/2019] [Indexed: 11/17/2022] Open
Abstract
Furfuryl alcohol (FA) and lactic acid (LA) are two of the most interesting biomolecules, easily obtainable from sugars and hence extremely attractive for green chemistry solutions. These substances undergo homopolymerization and they have been rarely considered for copolymerization. Typically, FA homopolymerizes exothermically in an acid environment producing inhomogeneous porous materials, but recent studies have shown that this reaction can be controlled and therefore we have implemented this process to trigger the copolymerization with LA. The mechanical tests have shown that the blend containing small amount of FA were rigid and the fracture showed patterns more similar to the one of neat polyfurfuryl alcohol (PFA). This LA-rich blend exhibited higher chloroform and water resistances, while thermal analyses (TG and DSC) also indicated a higher furanic character than expected. These observations suggested an intimate interconnection between precursors which was highlighted by the presence of a small band in the ester region of the solid state 13C-NMR, even if the FT-IR did not evidence any new signal. These studies show that these bioplastics are basically constituted of PLA and PFA homopolymers with some small portion of covalent bonds between the two moieties.
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Affiliation(s)
- Lukas Sommerauer
- Forest Products Technology & Timber Constructions Department, Salzburg University of Applied Sciences, Marktstraße 136a, 5431 Kuchl, Austria.
| | - Jakub Grzybek
- Forest Products Technology & Timber Constructions Department, Salzburg University of Applied Sciences, Marktstraße 136a, 5431 Kuchl, Austria.
| | - Michael S Elsaesser
- Department of Chemistry and Physics of Materials, Paris-Lodron-University Salzburg, Jakob-Haringer-Strasse 2A, 5020 Salzburg, Austria.
| | - Artur Benisek
- Department of Chemistry and Physics of Materials, Paris-Lodron-University Salzburg, Jakob-Haringer-Strasse 2A, 5020 Salzburg, Austria.
| | - Thomas Sepperer
- Forest Products Technology & Timber Constructions Department, Salzburg University of Applied Sciences, Marktstraße 136a, 5431 Kuchl, Austria.
- Salzburg Center for Smart Materials, Jakob-Haringer-Strasse 2A, 5020 Salzburg, Austria.
| | - Edgar Dachs
- Department of Chemistry and Physics of Materials, Paris-Lodron-University Salzburg, Jakob-Haringer-Strasse 2A, 5020 Salzburg, Austria.
| | - Nicola Hüsing
- Department of Chemistry and Physics of Materials, Paris-Lodron-University Salzburg, Jakob-Haringer-Strasse 2A, 5020 Salzburg, Austria.
| | - Alexander Petutschnigg
- Forest Products Technology & Timber Constructions Department, Salzburg University of Applied Sciences, Marktstraße 136a, 5431 Kuchl, Austria.
| | - Gianluca Tondi
- Forest Products Technology & Timber Constructions Department, Salzburg University of Applied Sciences, Marktstraße 136a, 5431 Kuchl, Austria.
- Salzburg Center for Smart Materials, Jakob-Haringer-Strasse 2A, 5020 Salzburg, Austria.
- Department of Land, Environment, Agriculture & Forestry, University of Padua, Via dell´Universitá 16, 35020 Legnaro, Italy.
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Raulino GSC, Silva LSD, Vidal CB, de Sousa Almeida E, de Quadros Melo D, Nascimento RFD. Role of surface chemistry and morphology in the reactive adsorption of metal ions on acid modified dry bean pods ( Phaseolus vulgaris
L.) organic polymers. J Appl Polym Sci 2018. [DOI: 10.1002/app.45879] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
| | - Leila Soares da Silva
- Departament of Physics; Federal University of Cearaá; Campus do Pici, 6030, Fortaleza CE 60440-554 Brazil
| | - Carla Bastos Vidal
- Department of Analytical Chemistry and Physico-Chemistry; Federal University of Cearaá; Campus do Pici, Bl. 940, Fortaleza CE 60451-970 Brazil
| | - Edmilson de Sousa Almeida
- Department of Analytical Chemistry and Physico-Chemistry; Federal University of Cearaá; Campus do Pici, Bl. 940, Fortaleza CE 60451-970 Brazil
| | - Diego de Quadros Melo
- Department of Chemistry; Federal Institute of Education and Science of Sertão Pernambucano; Br 407, Km 08, Campus Petrolina, Pernambuco Brazil
| | - Ronaldo Ferreira do Nascimento
- Department of Analytical Chemistry and Physico-Chemistry; Federal University of Cearaá; Campus do Pici, Bl. 940, Fortaleza CE 60451-970 Brazil
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Cattelan L, Perosa A, Riello P, Maschmeyer T, Selva M. Continuous-Flow O-Alkylation of Biobased Derivatives with Dialkyl Carbonates in the Presence of Magnesium-Aluminium Hydrotalcites as Catalyst Precursors. CHEMSUSCHEM 2017; 10:1571-1583. [PMID: 28140521 DOI: 10.1002/cssc.201601765] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/01/2016] [Revised: 01/20/2017] [Indexed: 06/06/2023]
Abstract
The base-catalysed reactions of OH-bearing biobased derivatives (BBDs) including glycerol formal, solketal, glycerol carbonate, furfuryl alcohol and tetrahydrofurfuryl alcohol with non-toxic dialkyl carbonates (dimethyl and diethyl carbonate) were explored under continuous-flow (CF) conditions in the presence of three Na-exchanged Y- and X-faujasites (FAUs) and four Mg-Al hydrotalcites (HTs). Compared to previous etherification protocols mediated by dialkyl carbonates, the reported procedure offers substantial improvements not only in terms of (chemo)selectivity but also for the recyclability of the catalysts, workup, ease of product purification and, importantly, process intensification. Characterisation studies proved that both HT30 and KW2000 hydrotalcites acted as catalyst precursors: during the thermal activation pre-treatments, the typical lamellar structure of the hydrotalcite was broken down gradually into a MgO-like phase (periclase) or rather a magnesia-alumina solid solution, which was the genuine catalytic phase.
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Affiliation(s)
- Lisa Cattelan
- Department of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino, 155, Venezia Mestre, Italy
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry F11, University of Sydney, Sydney, 2006, Australia
| | - Alvise Perosa
- Department of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino, 155, Venezia Mestre, Italy
| | - Piero Riello
- Department of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino, 155, Venezia Mestre, Italy
| | - Thomas Maschmeyer
- Laboratory of Advanced Catalysis for Sustainability, School of Chemistry F11, University of Sydney, Sydney, 2006, Australia
| | - Maurizio Selva
- Department of Molecular Sciences and Nanosystems, Università Ca' Foscari Venezia, Via Torino, 155, Venezia Mestre, Italy
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Sustainable Phenolic Fractions as Basis for Furfuryl Alcohol-Based Co-Polymers and Their Use as Wood Adhesives. Polymers (Basel) 2016; 8:polym8110396. [PMID: 30974673 PMCID: PMC6431995 DOI: 10.3390/polym8110396] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Revised: 10/28/2016] [Accepted: 11/07/2016] [Indexed: 11/25/2022] Open
Abstract
Furfuryl alcohol is a very interesting green molecule used in the production of biopolymers. In the present paper, the copolymerization in acid environment with natural, easily-available, phenolic derivatives is investigated. The processes of polymerization of the furfuryl alcohol with: (i) spent-liquor from the pulping industry and (ii) commercial tannin from acacia mimosa were investigated though viscometry and IR-spectroscopy. The curing kinetics of the formulations highlighted the importance of the amount of furfuryl alcohol and catalyst as well as the effect of temperature for both phenolic-furanic polymers. Evidence of covalent copolymerization has been observed through infrared spectrometry (FT-IR) combined with principal component analysis (PCA) and confirmed with additional solubility tests. These bio-based formulations were applied as adhesives for solid wood and particleboards with interesting results: at 180 °C, the spent-liquor furanic formulations allow wood bonding slightly with lower performance than PVA in dry conditions, while mixed formulations allow the gluing of particleboard with only satisfactory internal bonding tests.
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10
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Monteiro SN, Candido VS, Braga FO, Bolzan LT, Weber RP, Drelich JW. Sugarcane bagasse waste in composites for multilayered armor. Eur Polym J 2016. [DOI: 10.1016/j.eurpolymj.2016.03.031] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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11
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Megiatto JD, Cerrutti BM, Frollini E. Sodium lignosulfonate as a renewable stabilizing agent for aqueous alumina suspensions. Int J Biol Macromol 2016; 82:927-32. [DOI: 10.1016/j.ijbiomac.2015.11.004] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2015] [Revised: 10/14/2015] [Accepted: 11/01/2015] [Indexed: 10/22/2022]
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12
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Thakur VK, Thakur MK. Processing and characterization of natural cellulose fibers/thermoset polymer composites. Carbohydr Polym 2014; 109:102-17. [DOI: 10.1016/j.carbpol.2014.03.039] [Citation(s) in RCA: 650] [Impact Index Per Article: 65.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2014] [Revised: 02/10/2014] [Accepted: 03/05/2014] [Indexed: 11/30/2022]
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13
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Yu YL, Huang XA, Yu WJ. High performance of bamboo-based fiber composites from long bamboo fiber bundles and phenolic resins. J Appl Polym Sci 2014. [DOI: 10.1002/app.40371] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yang-Lun Yu
- Key Laboratory of Wood Science and Technology of State Forestry Administration; Research Institute of Wood Industry, Chinese Academy of Forestry, Xiang Shan Road; Haidian District Beijing China
| | - Xian-Ai Huang
- Université du Québec à Chicoutimi; Canada 555, boul. de l'Université; Chicoutimi Québec Canada G7H 2B1
| | - Wen-Ji Yu
- Key Laboratory of Wood Science and Technology of State Forestry Administration; Research Institute of Wood Industry, Chinese Academy of Forestry, Xiang Shan Road; Haidian District Beijing China
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14
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de Oliveira Santos RP, Castro DO, Ruvolo-Filho AC, Frollini E. Processing and thermal properties of composites based on recycled PET, sisal fibers, and renewable plasticizers. J Appl Polym Sci 2014. [DOI: 10.1002/app.40386] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Affiliation(s)
- Rachel Passos de Oliveira Santos
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Science and Technology of BioResources; Institute of Chemistry of São Carlos; University of São Paulo; São Carlos São Paulo Brazil
| | - Daniele Oliveira Castro
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Science and Technology of BioResources; Institute of Chemistry of São Carlos; University of São Paulo; São Carlos São Paulo Brazil
| | | | - Elisabete Frollini
- Macromolecular Materials and Lignocellulosic Fibers Group, Center for Science and Technology of BioResources; Institute of Chemistry of São Carlos; University of São Paulo; São Carlos São Paulo Brazil
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15
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Rojo E, Alonso MV, Domínguez JC, Saz-Orozco BD, Oliet M, Rodriguez F. Alkali treatment of viscose cellulosic fibers from eucalyptus wood: Structural, morphological, and thermal analysis. J Appl Polym Sci 2013. [DOI: 10.1002/app.39399] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Affiliation(s)
- Ester Rojo
- Departamento de Ingeniería Química; Universidad Complutense de Madrid; Avda. Complutense s/n; 28040; Madrid; Spain
| | - M. Virginia Alonso
- Departamento de Ingeniería Química; Universidad Complutense de Madrid; Avda. Complutense s/n; 28040; Madrid; Spain
| | - Juan C. Domínguez
- Departamento de Ingeniería Química; Universidad Complutense de Madrid; Avda. Complutense s/n; 28040; Madrid; Spain
| | - Belén Del Saz-Orozco
- Departamento de Ingeniería Química; Universidad Complutense de Madrid; Avda. Complutense s/n; 28040; Madrid; Spain
| | - Mercedes Oliet
- Departamento de Ingeniería Química; Universidad Complutense de Madrid; Avda. Complutense s/n; 28040; Madrid; Spain
| | - Francisco Rodriguez
- Departamento de Ingeniería Química; Universidad Complutense de Madrid; Avda. Complutense s/n; 28040; Madrid; Spain
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Ramires EC, de Oliveira F, Frollini E. Composites based on renewable materials: Polyurethane-type matrices from forest byproduct/vegetable oil and reinforced with lignocellulosic fibers. J Appl Polym Sci 2013. [DOI: 10.1002/app.38934] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Jiang GB, Lin ZT, Huang XY, Zheng YQ, Ren CC, Huang CK, Huang ZJ. Potential biosorbent based on sugarcane bagasse modified with tetraethylenepentamine for removal of eosin Y. Int J Biol Macromol 2012; 50:707-12. [DOI: 10.1016/j.ijbiomac.2011.12.030] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2011] [Revised: 12/16/2011] [Accepted: 12/24/2011] [Indexed: 10/14/2022]
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Baltazar-y-Jimenez A, Sain M. Effect of bismaleimide reactive extrusion on the crystallinity and mechanical performance of poly(lactic acid) green composites. J Appl Polym Sci 2011. [DOI: 10.1002/app.35331] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Delancey JM, Cavazza MD, Rendos MG, Ulisse CJ, Palumbo SG, Mathers RT. Controlling crosslinking in thermosets via chain transfer with monoterpenes. ACTA ACUST UNITED AC 2011. [DOI: 10.1002/pola.24808] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Spinacé MAS, Janeiro LG, Bernardino FC, Grossi TA, Paoli MAD. Poliolefinas reforçadas com fibras vegetais curtas: sisal × curauá. POLIMEROS 2011. [DOI: 10.1590/s0104-14282011005000036] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
É crescente o interesse nos compósitos poliméricos reforçados com fibras vegetais curtas em substituição às fibras de vidro, pois as fibras naturais provêm de fontes renováveis, não são abrasivas aos equipamentos de processamento, são biodegradáveis, e possuem baixa densidade comparada às fibras de vidro. Elas apresentam início de degradação em torno de 200 °C, sendo adequadas para reforçar poliolefinas que são processadas até essa temperatura ou termofíxos. Várias fibras vegetais vêm sendo usadas como reforço, dentre elas o curauá e o sisal; no entanto, há grande controvérsia na literatura sobre as propriedades finais dos compósitos. Neste trabalho comparamos as propriedades de compósitos de polietileno de alta densidade ou polipropileno com 20% em massa de fibras curtas de sisal ou de curauá com ou sem agentes de acoplagem. Todos foram processados por extrusão e moldados por injeção, exatamente nas mesmas condições, e os resultados foram comparados em termos das propriedades mecânicas. As fibras de curauá apresentam resistência à tração superior às fibras de sisal e os compósitos com fibras de curauá apresentaram resistência à tração e flexão ligeiramente superior aos compósitos com fibra de sisal. No caso da resistência ao impacto a situação se inverte. Como o sisal é mais frágil que o curauá, durante o processamento ocorre maior quebra da fibra provocando essa diferenciação nas propriedades mecânicas dos compósitos.
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S. Junior FGD, Picciani PHS, Rocha EVD, Oliveira GED. Estudo das propriedades mecânicas e elétricas de fibras de curauá modificada com polianilina. POLIMEROS 2010. [DOI: 10.1590/s0104-14282010005000058] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Fibras naturais têm sido empregadas em diversos compósitos, principalmente na indústria automobilística. Dentre as diversas fibras naturais, a fibra de curauá é atraente por apresentar elevada propriedade mecânica associada a baixos valores de densidade. Neste trabalho a fibra de curauá é modificada quimicamente pelo recobrimento de uma camada condutora de polianilina, PAni. O material obtido foi caracterizado pelas técnicas espectrometria de infravermelho por transformada de Fourier (FTIR), análise termogravimétrica (TG) e microscopia ótica. As técnicas de caracterização utilizadas demonstraram que a metodologia empregada foi eficiente para formar um recobrimento parcial, porém efetivo, uma vez que o recobrimento permitiu a formação de caminhos condutores ao longo de toda a fibra. As propriedades eletro-mecânicas das fibras também foram avaliadas e os compósitos apresentaram um grande potencial para a construção de sensores de pressão a baixos custos.
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Ramires EC, Megiatto JD, Gardrat C, Castellan A, Frollini E. Valorization of an industrial organosolv-sugarcane bagasse lignin: Characterization and use as a matrix in biobased composites reinforced with sisal fibers. Biotechnol Bioeng 2010; 107:612-21. [DOI: 10.1002/bit.22847] [Citation(s) in RCA: 45] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Ramires EC, Megiatto JD, Gardrat C, Castellan A, Frollini E. Biobased composites from glyoxal-phenolic resins and sisal fibers. BIORESOURCE TECHNOLOGY 2010; 101:1998-2006. [PMID: 19880315 DOI: 10.1016/j.biortech.2009.10.005] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2008] [Revised: 10/01/2009] [Accepted: 10/01/2009] [Indexed: 05/22/2023]
Abstract
Lignocellulosic materials can significantly contribute to the development of biobased composites. In this work, glyoxal-phenolic resins for composites were prepared using glyoxal, which is a dialdehyde obtained from several natural resources. The resins were characterized by (1)H, (13)C, 2D, and (31)P NMR spectroscopies. Resorcinol (10%) was used as an accelerator for curing the glyoxal-phenol resins in order to obtain the thermosets. The impact-strength measurement showed that regardless of the cure cycle used, the reinforcement of thermosets by 30% (w/w) sisal fibers improved the impact strength by one order of magnitude. Curing with cycle 1 (150 degrees C) induced a high diffusion coefficient for water absorption in composites, due to less interaction between the sisal fibers and water. The composites cured with cycle 2 (180 degrees C) had less glyoxal resin coverage of the cellulosic fibers, as observed by images of the fractured interface observed by SEM. This study shows that biobased composites with good properties can be prepared using a high proportion of materials obtained from natural resources.
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Affiliation(s)
- Elaine C Ramires
- Instituto de Química de São Carlos, Universidade de São Paulo, CP 780, CEP 13560-970 São Carlos, SP, Brazil
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Botaro VR, Siqueira G, Megiatto JD, Frollini E. Sisal fibers treated with NaOH and benzophenonetetracarboxylic dianhydride as reinforcement of phenolic matrix. J Appl Polym Sci 2010. [DOI: 10.1002/app.31113] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Megiatto JD, Silva CG, Rosa DS, Frollini E. Sisal chemically modified with lignins: Correlation between fibers and phenolic composites properties. Polym Degrad Stab 2008. [DOI: 10.1016/j.polymdegradstab.2008.03.011] [Citation(s) in RCA: 67] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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27
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Oliveira FB, Gardrat C, Enjalbal C, Frollini E, Castellan A. Phenol–furfural resins to elaborate composites reinforced with sisal fibers—Molecular analysis of resin and properties of composites. J Appl Polym Sci 2008. [DOI: 10.1002/app.28312] [Citation(s) in RCA: 47] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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Megiatto JD, Hoareau W, Gardrat C, Frollini E, Castellan A. Sisal fibers: surface chemical modification using reagent obtained from a renewable source; characterization of hemicellulose and lignin as model study. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2007; 55:8576-84. [PMID: 17867642 DOI: 10.1021/jf071682d] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/17/2023]
Abstract
Sisal fibers have one of the greatest potentials among other lignocellulosic fibers to reinforce polymer matrices in composites. Sisal fibers have been modified to improve their compatibility with phenolic polymer matrices using furfuryl alcohol (FA) and polyfurfuryl alcohols (PFA) that can be obtained from renewable sources. The modification corresponded first to oxidation with ClO 2, which reacts mainly with guaiacyl and syringyl units of lignin, generating o- and p-quinones and muconic derivatives, followed by reaction with FA or PFA. The FA and PFA modified fibers presented a thin similar layer, indicating the polymer character of the coating. The untreated and treated sisal fibers were characterized by (13)C CP-MAS NMR spectrometry, thermal analysis, and scanning electron microscopy. Furthermore, for a better understanding of the reactions involved in the FA and PFA modifications, the sisal lignin previously extracted was also submitted to those reactions and characterized. The characterization of isolated lignin and hemicellulose provides some information on the chemical structure of the main constitutive macrocomponents of sisal fibers, such information being scarce in the literature.
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Affiliation(s)
- Jackson D Megiatto
- Instituto de Química de São Carlos, Universidade de São Paulo, USP, C.P. 780, CEP 13560-970 São Carlos, SP, Brazil
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Megiatto JD, Oliveira FB, Rosa DS, Gardrat C, Castellan A, Frollini E. Renewable Resources as Reinforcement of Polymeric Matrices: Composites Based on Phenolic Thermosets and Chemically Modified Sisal Fibers. Macromol Biosci 2007; 7:1121-31. [PMID: 17676656 DOI: 10.1002/mabi.200700083] [Citation(s) in RCA: 44] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Lignocellulosic materials can significantly contribute to the development of composites, since it is possible to chemically and/or physically modify their main components, cellulose, hemicelluloses and lignin. This may result in materials more stable and with more uniform properties. It has previously been shown that chemically modified sisal fibers by ClO(2) oxidation and reaction with FA and PFA presented a thin coating layer of PFA on their surface. FA and PFA were chosen as reagents because these alcohols can be obtained from renewable sources. In the present work, the effects of the polymeric coating layer as coupling agent in phenolic/sisal fibers composites were studied. For a more detailed characterization of the fibers, IGC was used to evaluate the changes that occurred at the sisal fibers surface after the chemical modifications. The dispersive and acid-base properties of untreated and treated sisal fibers surfaces were determined. Biodegradation experiments were also carried out. In a complementary study, another PFA modification was made on sisal fibers, using K2Cr2O(7) as oxidizing agent. In this case the oxidation effects involve mainly the cellulose polymer instead of lignin, as observed when the oxidation was carried out with ClO(2). The SEM images showed that the oxidation of sisal fibers followed by reaction with FA or PFA favored the fiber/phenolic matrix interaction at the interface. However, because the fibers were partially degraded by the chemical treatment, the impact strength of the sisal-reinforced composites decreased. By contrast, the chemical modification of fibers led to an increase of the water diffusion coefficient and to a decrease of the water absorption of the composites reinforced with modified fibers. The latter property is very important for certain applications, such as in the automotive industry.
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Affiliation(s)
- Jackson D Megiatto
- Instituto de Química de São Carlos, Universidade de São Paulo, USP, C.P. 780, CEP 13560-970 São Carlos, SP, Brazil
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Pan H, Shupe TF, Hse CY. Characterization of liquefied wood residues from different liquefaction conditions. J Appl Polym Sci 2007. [DOI: 10.1002/app.26435] [Citation(s) in RCA: 33] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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