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Stuart B, Guan J, Collins S, Thomas P, Ueland M. A preliminary study of non-woven fabrics for forensic identification purposes. AUST J FORENSIC SCI 2022. [DOI: 10.1080/00450618.2022.2143563] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Barbara Stuart
- Centre for Forensic Science, University of Technology Sydney, Ultimo, Australia
| | - Jennifer Guan
- Centre for Forensic Science, University of Technology Sydney, Ultimo, Australia
| | - Sharni Collins
- Centre for Forensic Science, University of Technology Sydney, Ultimo, Australia
| | - Paul Thomas
- School of Civil and Environmental Engineering, University of Technology Sydney, Ultimo, Australia
| | - Maiken Ueland
- Centre for Forensic Science, University of Technology Sydney, Ultimo, Australia
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Ali Larous, Guessoum M, Nekkaa S, Fois M. Novel Biocomposites Based on El Retma Natural Fiber and PLA/PC Mixture Compatibilized Using Samarium Acetylacetonate Catalyzed Interchange Reactions. POLYMER SCIENCE SERIES B 2022. [DOI: 10.1134/s1560090422200052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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Effects of chitin nanocrystals on coverage of coating layers and water retention of coating color. JOURNAL OF BIORESOURCES AND BIOPRODUCTS 2021. [DOI: 10.1016/j.jobab.2021.11.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Shi J, Lu Y, Zhang Y, Cai L, Shi SQ. Effect of thermal treatment with water, H 2SO 4 and NaOH aqueous solution on color, cell wall and chemical structure of poplar wood. Sci Rep 2018; 8:17735. [PMID: 30531958 PMCID: PMC6286344 DOI: 10.1038/s41598-018-36086-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Accepted: 11/15/2018] [Indexed: 11/30/2022] Open
Abstract
Thermal treatments with water, diluted acid, and diluted alkali aqueous solution of poplar wood blocks were carried out in a Teflon-lined autoclave at three temperatures. The effects of different liquids and temperatures on wood surface color, cell wall microstructure, and chemical structures were investigated by the chromameter, scanning electron microscope (SEM), and Fourier transform infrared spectroscopy (FTIR). From the chromameter, it was observed that the lightness value decreased with temperature for all treatment conditions. The a* value increased with temperature in all liquid treatments. The b* value increased with temperature in hydrothermal and thermal with H2SO4 treatment but decreased with temperature in thermal with NaOH treatment. The total color difference (ΔE) was slightly changed in the hydrothermal treatment, but dramatically changed in the thermal with H2SO4 and NaOH aqueous treatments. SEM showed that the cell wall structure was damaged differently with different reagents and temperature. Middle lamella layers were always fractured in hydrothermal and NaOH treatments. However, both middle lamella and secondary cell wall were damaged after the H2SO4 treatment and intensified with temperature. These fractures usually parallel with the S2 layer microfibril angle (MFA) in the fiber cell wall. The FTIR analysis suggested that the chemical structure was obviously changed after the thermal with H2SO4 and NaOH treatments. And the missing or decreasing C=O absorption peak indicated hemicellulose is degraded and new compounds produced during thermal with H2SO4 and NaOH treatment. On the other hand, lignin was partly degraded in the H2SO4 treatment and guaiacyl nuclei was degraded before syringyl nuclei.
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Affiliation(s)
- Jiangtao Shi
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China. .,Mechanical and Energy Engineering, University of North Texas, Denton, TX, 76207, USA.
| | - Yu Lu
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Yaoli Zhang
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China
| | - Liping Cai
- College of Materials Science and Engineering, Nanjing Forestry University, Nanjing, 210037, China.,Mechanical and Energy Engineering, University of North Texas, Denton, TX, 76207, USA
| | - Sheldon Q Shi
- Mechanical and Energy Engineering, University of North Texas, Denton, TX, 76207, USA
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Green Preparation of Straw Fiber Reinforced Hydrolyzed Soy Protein Isolate/Urea/Formaldehyde Composites for Biocomposite Flower Pots Application. MATERIALS 2018; 11:ma11091695. [PMID: 30213087 PMCID: PMC6163861 DOI: 10.3390/ma11091695] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 09/06/2018] [Accepted: 09/07/2018] [Indexed: 12/23/2022]
Abstract
The effects of soil burial on the biodegradation of biocomposite flower pots (BFP) made from straw fiber (SF) and hydrolyzed soy protein isolate/urea/formaldehyde (HSPI/U/F) copolymer resin were studied in detail. The microstructure, crystallinity, functional groups, mechanical, degradation and thermal property of the prepared SF with HSPI/U/F copolymer resin have been studied, and the degradation mechanism was also elucidated. XRD results showed that the bond breakage between SF and HSPI/U/F copolymer resin induced a decrease in relative degradation-resistant crystal structures. FTIR spectra showed that the methylolated HSPI units could form a cross-linking network with U/F and SF. The BFP degradation after soil burial was mainly attributed to the effects of microorganisms. The degradation products were environmentally friendly, because they were degradable and could fertilize the soil. In addition, the U/F adhesives were slightly degraded by the microorganisms due to the HSPI in the pots. The TG and DSC results showed that the molecular motion of the BFP matrix could be restricted by the degradation action and the content of HSPI, resulting in decreased crystallization enthalpy and showing good thermal property. The tensile strength of different reinforced samples was not significantly reduced in comparison to U/F resin, and still kept good mechanical performance. Thus, the prepared SF reinforced HSPI/U/F copolymer resins could have good potential for use in the field of biodegradable flower pots because of their good thermal property, mechanical property, biodegradability, and relatively low cost.
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Chan CM, Vandi LJ, Pratt S, Halley P, Richardson D, Werker A, Laycock B. Composites of Wood and Biodegradable Thermoplastics: A Review. POLYM REV 2017. [DOI: 10.1080/15583724.2017.1380039] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Clement Matthew Chan
- School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St Lucia, QLD, Australia
| | - Luigi-Jules Vandi
- School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St Lucia, QLD, Australia
| | - Steven Pratt
- School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St Lucia, QLD, Australia
| | - Peter Halley
- School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St Lucia, QLD, Australia
| | - Desmond Richardson
- Department of Technical Support & Development, Norske Skog Paper Mills (Aust) Ltd, Boyer, TAS, Australia
| | - Alan Werker
- School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St Lucia, QLD, Australia
- Promiko AB, Lund, Sweden
| | - Bronwyn Laycock
- School of Chemical Engineering, Faculty of Engineering, Architecture and Information Technology, The University of Queensland, St Lucia, QLD, Australia
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Molaba TP, Chapple S, John MJ. Aging studies on flame retardant treated lignocellulosic fibers. J Appl Polym Sci 2016. [DOI: 10.1002/app.44175] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- Tshepiso Princess Molaba
- CSIR Materials Science and Manufacturing Polymers and Composites Competence Area; Port Elizabeth 6000 South Africa
- Department of Textile Science Faculty of Science; Nelson Mandela Metropolitan University; Port Elizabeth 6000 South Africa
| | - Steve Chapple
- CSIR Materials Science and Manufacturing Polymers and Composites Competence Area; Port Elizabeth 6000 South Africa
- Department of Textile Science Faculty of Science; Nelson Mandela Metropolitan University; Port Elizabeth 6000 South Africa
| | - Maya Jacob John
- CSIR Materials Science and Manufacturing Polymers and Composites Competence Area; Port Elizabeth 6000 South Africa
- Department of Chemistry Faculty of Science; Nelson Mandela Metropolitan University; Port Elizabeth 6000 South Africa
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Remy F, Collard F, Gilbert B, Compère P, Eppe G, Lepoint G. When Microplastic Is Not Plastic: The Ingestion of Artificial Cellulose Fibers by Macrofauna Living in Seagrass Macrophytodetritus. ENVIRONMENTAL SCIENCE & TECHNOLOGY 2015; 49:11158-66. [PMID: 26301775 DOI: 10.1021/acs.est.5b02005] [Citation(s) in RCA: 201] [Impact Index Per Article: 22.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/06/2023]
Abstract
Dead leaves of the Neptune grass, Posidonia oceanica (L.) Delile, in the Mediterranean coastal zone, are colonized by an abundant "detritivorous" invertebrate community that is heavily predated by fishes. This community was sampled in August 2011, November 2011, and March 2012 at two different sites in the Calvi Bay (Corsica). Ingested artificial fibers (AFs) of various sizes and colors were found in 27.6% of the digestive tracts of the nine dominant species regardless of their trophic level or taxon. No seasonal, spatial, size, or species-specific significant differences were revealed; suggesting that invertebrates ingest AFs at constant rates. Results showed that, in the gut contents of invertebrates, varying by trophic level, and across trophic levels, the overall ingestion of AFs was low (approximately 1 fiber per organism). Raman spectroscopy revealed that the ingested AFs were composed of viscose, an artificial, cellulose-based polymer. Most of these AFs also appeared to have been colored by industrial dyes. Two dyes were identified: Direct Blue 22 and Direct Red 28. The latter is known for being carcinogenic for vertebrates, potentially causing environmental problems for the P. oceanica litter community. Techniques such as Raman spectroscopy are necessary to investigate the particles composition, instead of relying on fragment size or color to identify the particles ingested by animals.
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Affiliation(s)
- François Remy
- Laboratory of Oceanology, MARE Centre, ‡Functional and Evolutionary Morphology Laboratory, AFFISH-RC, and §Laboratory of Analytical Chemistry, University of LIEGE , Institute of Chemistry B6c, 4000 Liege (Sart-Tilman), Liege, Belgium
| | - France Collard
- Laboratory of Oceanology, MARE Centre, ‡Functional and Evolutionary Morphology Laboratory, AFFISH-RC, and §Laboratory of Analytical Chemistry, University of LIEGE , Institute of Chemistry B6c, 4000 Liege (Sart-Tilman), Liege, Belgium
| | - Bernard Gilbert
- Laboratory of Oceanology, MARE Centre, ‡Functional and Evolutionary Morphology Laboratory, AFFISH-RC, and §Laboratory of Analytical Chemistry, University of LIEGE , Institute of Chemistry B6c, 4000 Liege (Sart-Tilman), Liege, Belgium
| | - Philippe Compère
- Laboratory of Oceanology, MARE Centre, ‡Functional and Evolutionary Morphology Laboratory, AFFISH-RC, and §Laboratory of Analytical Chemistry, University of LIEGE , Institute of Chemistry B6c, 4000 Liege (Sart-Tilman), Liege, Belgium
| | - Gauthier Eppe
- Laboratory of Oceanology, MARE Centre, ‡Functional and Evolutionary Morphology Laboratory, AFFISH-RC, and §Laboratory of Analytical Chemistry, University of LIEGE , Institute of Chemistry B6c, 4000 Liege (Sart-Tilman), Liege, Belgium
| | - Gilles Lepoint
- Laboratory of Oceanology, MARE Centre, ‡Functional and Evolutionary Morphology Laboratory, AFFISH-RC, and §Laboratory of Analytical Chemistry, University of LIEGE , Institute of Chemistry B6c, 4000 Liege (Sart-Tilman), Liege, Belgium
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Nomai J, Jarapanyacheep R, Jarukumjorn K. Mechanical, Thermal, and Morphological Properties of Sawdust/Poly(lactic acid) Composites: Effects of Alkali Treatment and Poly(butylene adipate-co
-terephthalate) Content. ACTA ACUST UNITED AC 2015. [DOI: 10.1002/masy.201400120] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Jiraporn Nomai
- School of Polymer Engineering, Institute of Engineering; Suranaree University of Technology; Nakhon Ratchasima 30000 Thailand
| | - Rapisa Jarapanyacheep
- School of Polymer Engineering, Institute of Engineering; Suranaree University of Technology; Nakhon Ratchasima 30000 Thailand
| | - Kasama Jarukumjorn
- School of Polymer Engineering, Institute of Engineering; Suranaree University of Technology; Nakhon Ratchasima 30000 Thailand
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Ferreira de Oliveira P, Vieira Marques MDF. Chemical Treatment of Natural Malva Fibers and Preparation of Green Composites with Poly(3-hydroxybutyrate). CHEMISTRY & CHEMICAL TECHNOLOGY 2015. [DOI: 10.23939/chcht09.02.211] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
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Rojo E, Alonso MV, Del Saz-Orozco B, Oliet M, Rodriguez F. Optimization of the silane treatment of cellulosic fibers from eucalyptus wood using response surface methodology. J Appl Polym Sci 2015. [DOI: 10.1002/app.42157] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Ester Rojo
- Department of Chemical Engineering; Complutense University of Madrid; 28040 Madrid Spain
| | - M. Virginia Alonso
- Department of Chemical Engineering; Complutense University of Madrid; 28040 Madrid Spain
| | - Belén Del Saz-Orozco
- Department of Chemical Engineering; Complutense University of Madrid; 28040 Madrid Spain
| | - Mercedes Oliet
- Department of Chemical Engineering; Complutense University of Madrid; 28040 Madrid Spain
| | - Francisco Rodriguez
- Department of Chemical Engineering; Complutense University of Madrid; 28040 Madrid Spain
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Rojo E, Oliet M, Alonso MV, Saz-Orozco BD, Rodriguez F. Mechanical and interfacial properties of phenolic composites reinforced with treated cellulose fibers. POLYM ENG SCI 2013. [DOI: 10.1002/pen.23772] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Ester Rojo
- Department of Chemical Engineering; Complutense University of Madrid; Avda. Complutense s/n 28040 Madrid Spain
| | - Mercedes Oliet
- Department of Chemical Engineering; Complutense University of Madrid; Avda. Complutense s/n 28040 Madrid Spain
| | - M. Virginia Alonso
- Department of Chemical Engineering; Complutense University of Madrid; Avda. Complutense s/n 28040 Madrid Spain
| | - Belén Del Saz-Orozco
- Department of Chemical Engineering; Complutense University of Madrid; Avda. Complutense s/n 28040 Madrid Spain
| | - Francisco Rodriguez
- Department of Chemical Engineering; Complutense University of Madrid; Avda. Complutense s/n 28040 Madrid Spain
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