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Optimizing the yiel...
Optimizing the yield and physico-chemical properties of pine cone cellulose nanocrystals by different hydrolysis time
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- García-García, Daniel (författare)
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Alicante, Spain,UPV, ITM, Plaza Ferrandiz y Carbonell 1, Alicante 03801, Spain.
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- Balart, Rafael (författare)
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Alicante, Spain,UPV, ITM, Plaza Ferrandiz y Carbonell 1, Alicante 03801, Spain.
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- Lopez-Martinez, Juan (författare)
- Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Alicante, Spain,UPV, ITM, Plaza Ferrandiz y Carbonell 1, Alicante 03801, Spain.
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- Ek, Monica (författare)
- KTH,Fiber- och polymerteknologi,School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Fibre and Polymer Technology, KTH-Royal Institute of Technology, Stockholm, Sweden
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- Moriana, Rosana (författare)
- KTH,Högskolan i Skövde,Institutionen för ingenjörsvetenskap,Forskningscentrum för Virtuella system,School of Engineering Sciences in Chemistry, Biotechnology and Health, Department of Fibre and Polymer Technology, KTH-Royal Institute of Technology, Stockholm, Sweden,Materialmekanik, Mechanics of Materials,Fiber- och polymerteknologi
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Instituto de Tecnología de Materiales (ITM), Universitat Politècnica de València (UPV), Alicante, Spain UPV, ITM, Plaza Ferrandiz y Carbonell 1, Alicante 03801, Spain (creator_code:org_t)
- 2018-03-23
- 2018
- Engelska.
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Ingår i: Cellulose. - : Springer. - 0969-0239 .- 1572-882X. ; 25:5, s. 2925-2938
- Relaterad länk:
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https://doi.org/10.1...
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https://his.diva-por... (primary) (Raw object)
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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Abstract
Ämnesord
Stäng
- Cellulose nanocrystals (CNCs) were isolated for the first time from pine cones (PC) by alkali and bleaching treatments and subsequent sulfuric acid hydrolysis (64%) at 45 degrees C. The influence of the hydrolytic reaction time (30, 45, and 90 min) on the yield, chemical composition and structure, and thermal stability of CNCs was evaluated. The removal of non-cellulosic constituents during the alkaline and bleaching treatment resulted in high pure cellulosic fibres. The isolation of CNCs from these cellulosic fibres at different reaction times was verified by the nano-dimensions of the individual crystals (< 3 and < 335 nm of average diameter and length, respectively). The highest yield (15%) and the optimum CNCs properties in terms of aspect ratio, thermal stability and crystallinity were obtained for an extraction time of 45 min. PC appeared to be a new promising source of cellulose fibres and CNCs with potential to be applied as reinforcement in composites and for food-packaging.
Ämnesord
- NATURVETENSKAP -- Kemi -- Materialkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Materials Chemistry (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Materialteknik -- Pappers-, massa- och fiberteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Materials Engineering -- Paper, Pulp and Fiber Technology (hsv//eng)
- NATURVETENSKAP -- Kemi -- Polymerkemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences -- Polymer Chemistry (hsv//eng)
Nyckelord
- Pine cones
- Cellulose nanocrystals
- Sulfuric hydrolysis conditions
- Physico-chemical properties
- Yield-recovery
- Mechanics of Materials
- Materialmekanik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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