DK3071517T3 - Nanocellulose - Google Patents
Nanocellulose Download PDFInfo
- Publication number
- DK3071517T3 DK3071517T3 DK14863891.9T DK14863891T DK3071517T3 DK 3071517 T3 DK3071517 T3 DK 3071517T3 DK 14863891 T DK14863891 T DK 14863891T DK 3071517 T3 DK3071517 T3 DK 3071517T3
- Authority
- DK
- Denmark
- Prior art keywords
- nanocellulose
- cellulose
- grass
- plant material
- derived
- Prior art date
Links
- 229920001046 Nanocellulose Polymers 0.000 title claims description 104
- 239000000463 material Substances 0.000 claims description 141
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- 238000000034 method Methods 0.000 claims description 66
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Classifications
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C5/00—Other processes for obtaining cellulose, e.g. cooking cotton linters ; Processes characterised by the choice of cellulose-containing starting materials
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B82—NANOTECHNOLOGY
- B82Y—SPECIFIC USES OR APPLICATIONS OF NANOSTRUCTURES; MEASUREMENT OR ANALYSIS OF NANOSTRUCTURES; MANUFACTURE OR TREATMENT OF NANOSTRUCTURES
- B82Y40/00—Manufacture or treatment of nanostructures
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/02—Pulping cellulose-containing materials with inorganic bases or alkaline reacting compounds, e.g. sulfate processes
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C3/00—Pulping cellulose-containing materials
- D21C3/04—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides
- D21C3/06—Pulping cellulose-containing materials with acids, acid salts or acid anhydrides sulfur dioxide; sulfurous acid; bisulfites sulfites
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/001—Modification of pulp properties
- D21C9/007—Modification of pulp properties by mechanical or physical means
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21C—PRODUCTION OF CELLULOSE BY REMOVING NON-CELLULOSE SUBSTANCES FROM CELLULOSE-CONTAINING MATERIALS; REGENERATION OF PULPING LIQUORS; APPARATUS THEREFOR
- D21C9/00—After-treatment of cellulose pulp, e.g. of wood pulp, or cotton linters ; Treatment of dilute or dewatered pulp or process improvement taking place after obtaining the raw cellulosic material and not provided for elsewhere
- D21C9/10—Bleaching ; Apparatus therefor
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/12—Pulp from non-woody plants or crops, e.g. cotton, flax, straw, bagasse
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21H—PULP COMPOSITIONS; PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D; IMPREGNATING OR COATING OF PAPER; TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G; PAPER NOT OTHERWISE PROVIDED FOR
- D21H11/00—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only
- D21H11/16—Pulp or paper, comprising cellulose or lignocellulose fibres of natural origin only modified by a particular after-treatment
- D21H11/18—Highly hydrated, swollen or fibrillatable fibres
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- Mechanical Engineering (AREA)
- Inorganic Chemistry (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
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Claims (15)
1. Et nanocellulosemateriale der er af planteoprindelse og omfatter nanocellulosepartikler eller -fibre, der stammer fra et plantemateriale, kendetegnet ved at nanocellulosematerialet har et hemicelluloseindhold på 30 vægtprocent eller mere.
2. Nanocellulosemateriale ifølge krav 1 kendetegnet ved, at plantematerialet har et hemicelluloseindhold på 30 til 50 vægtprocent eller 30 til 45 vægtprocent eller 32 til 38 vægtprocent eller 32 til 37 vægtprocent eller 32 til 36 vægtprocent, og nanocellulosematerialet har et hemicelluloseindhold på 30 til 50 vægtprocent eller 30 til 45 vægtprocent eller 32 til 38 vægtprocent eller 32 til 37 vægtprocent eller 32 til 36 vægtprocent.
3. Nanocellulosemateriale ifølge et hvilket som helst af kravene 1 til 2, hvor nanocellulosematerialet har et længde/sideforhold på mindst 250 eller mellem 250 og 10.000 eller mellem 250 og 5000 eller mellem 250 og 1000 eller mellem 260 og 1000 eller mellem 266 og 1000 eller mellem 266 og 958.
4. Nanocellulosemateriale ifølge et hvilket som helst af de foregående krav, hvor nanocellulosen stammer fra et plantemateriale, der har C4-bladanatomi.
5. Nanocellulosemateriale ifølge et hvilket som helst af de foregående krav, hvor nanocellulosematerialet omfatter cellulose-nanokrystaller (CNC) eller nanofibrilleret cellulose (NFC).
6. Nanocellulosemateriale ifølge et hvilket som helst af de foregående krav, hvor nanocellulosematerialet har et længde/sideforhold, der ligger inden for et område med en nedre grænse på 250 eller 266 eller 280 eller 300 eller 400 eller 500 og en øvre grænse på 10.000 eller 5000 eller 4000 eller 3000 eller 2000 eller 1000 eller 958 eller 800 eller 700 eller 600 eller 550.
7. Nanocellulosemateriale ifølge et hvilket som helst af de foregående krav, hvor nanocellulosematerialet omfatter nanocellulosepartikler eller -fibre med en diameter på op til 20 nm eller op til 15 nm eller op til 10 nm eller op til 8 nm eller op til 6 nm eller op til 5nm.
8. Nanocellulosemateriale ifølge et hvilket som helst af de foregående krav, hvor nanocellulosematerialet omfatter nanocellulosepartikler eller -fibre med en længde, der ligger inden for området 200 nm op til 10 pm.
9. Nanocellulosemateriale ifølge et hvilket som helst af de foregående krav, hvor nanocellulosematerialet stammer fra plantemateriale, hvor en mængde hemicellulose i plantematerialet er større end en mængde lignin i plantematerialet.
10. Nanocellulosemateriale ifølge et hvilket som helst af de foregående krav, hvor nanocellulosematerialet stammer fra plantemateriale, og plantematerialet stammer fra en tørketolerant græsart.
11. Nanocellulosemateriale ifølge krav 10, hvor plantematerialet stammer fra tørre græsarter.
12. Nanocellulosemateriale ifølge et hvilket som helst af de foregående krav, hvor nanocellulosematerialet stammer fra plantemateriale, og plantematerialet stammer fra australsk lokalt tørt græs kendt som "spinifex" fra slægten Triodia, Monodia eller Symplectrodia, T. pungens, T. shinzii, T. basedowii eller T. longicep, eller afledt af plantemateriale afledt af Digitaria sanguinalis (L.) Scopoli, Panicum coloratum L. var. makarikariense Goossens, Brachiaria brizantha (Hochst. Ex A. Rich) Stapf, D. violascens Link, P. dichotomiflorum Michaux, B. decumbens Stapf, Echinochloa crus-galli P. Beauv., P. miliaceum L., B. humidicola (Rendle) Schweick., Paspalum distichum L., B. mutica (Forsk.) Stapf, Setaria glauca (L.) P. Beauv, Cynodon dactylon (L.) Persoon, Panicum maximum Jacq., S. viridis (L.) P. Beauv, Eleusine coracana (L.) Gaertner, Urochloa texana (Buckley) Webster, Sorghum sudanense Stapf, E. indica (L.) Gaertner, Spodiopogon cotulifer (Thunb.) Hackel, Eragrostis cilianensis (Allioni) Vignolo-Lutati, Chloris gayana Kunth, Eragrostis curvula, Leptochloa dubia, Muhlenbergia wrightii, E. ferruginea (Thunb.) P. Beauv., Sporobolus indicus R. Br. var.purpureo-suffusus (Ohwi) T. Koyama, Andropogon gerardii, Leptochloa chinensis (L.) Nees, græs af Miscanthus-s\ægten (elefantgræs), planter af slægten Salsola, herunder Russian Thistle, risstrå, hvedestrå og majsstrå og Zoysia tenuifolia Willd, eller afledt af plantemateriale afledt af tørre græsser, Anigozanthos, Austrodanthonia, Austrostipa, Baloskion pallens, Baumea juncea, Bolboschoenus, Capillipedium, Carex bichenoviana, Carec gaudichaudiana, Carex appressa, C.tereticaulis, Caustis, Centrolepis, Chloris trunkate, Chorizandra, Conostylis, Cymbopogon, Cyperus, Desmocladus flexuosa, Dichanthium sericeum, Dichelachne, Eragrostis, Eurychorda complanata, Evandra aristata, Ficinia nodosa, Gahnia, Gymnoschoenus sphaerocephalus, Hemarthria uncinata, Hypolaeana, Imperata cylindriske, Johnsonia, Joycea pallid, Juncus, Kingia australis, Lepidosperma, Lepironia artikulat, Leptocarpus, Lomandra, Meeboldina, Mesomelaena, Neurachne alopecuroidea, Notodanthonia, Patersonia, Poa, Themedo triandra, Tremulina tremula, Triglochin, Triodia og Zanthorhhoea, Aristida pallens (Wire grass), Andropogon gerardii (Kalkunfod), Bouteloua eriopoda (Sort grama) Chloris Roxburghiana (Horsetail grass), Themeda triandra (Rødt havregræs), Panicum virgatum (Rishirse), Pennisetum ciliaris (Buffel grass) Schizachyrium scoparium (Liden præriegræs) Sorghatrum nutans (Gul indianergræs) Ammophila arenaria (Sandhjælme) og Stipa tenacissima (Alfagræs).
13. Fremgangsmåde til fremstilling af nanocellulosemateriale ifølge et hvilket som helst af kravene 1 til 12, hvor nanocellulosematerialet omfatter nanocellulosepartikler eller -fibre fra plantemateriale, der stammer fra planter med et hemicelluloseindhold på 30 vægtprocent eller derover, hvilken fremgangsmåde omfatter trinene delignificering og eventuelt blegning af plantematerialet efterfulgt af opdeling af plantematerialet i nanofibriller eller nanokrystaller, hvor trinnet med opdeling plantematerialet i nanofibriller eller nanokrystaller er valgt blandt: en mekanisk separation med lav energi og/eller et mildt kemisk behandlingstrin.
14. Fremgangsmåde ifølge krav 13, hvor fremgangsmåden ikke kræver anvendelse af et forbehandlingstrin efter trinene med delignificering og eventuelt blegning og før trinnet/trinene, der udføres for at opdele massen i nanofibriller eller nanokrystaller.
15. Fremgangsmåde ifølge krav 13 eller 14, hvor trinnet med mekanisk separation med lav energi er valgt ved at udsætte plantematerialet for fem passager eller mindre eller tre passager eller mindre, fortrinsvis to passager eller mindre gennem et homogeniseringstrin eller ved at tilsætte en fortyndet fibersuspension i vand til en homogenisator for at delaminere fibre og passere fibrene gennem homogenisatoren i fem gange eller færre eller passere fibrene gennem en homogenisator under anvendelse af en enkelt passage gennem homogenisatoren eller passere fibrene gennem en homogenisator i fem eller færre passager ved et tryk på 150-1500 bar eller ved et tryk på 200-700 bar eller 250-650 eller 300-600 bar eller 350-550 bar, eller hvor trinnet med mekanisk separation med lav energi omfatter perlemaling, kuglemaling, diskrotator- eller statorraffinering, fryseknusning, dampeksplosion, kværning, raffinering, ultralyd med høj intensitet, mikrofluidisering, behandling med høj forskydning, såsom det der udføres med blandere af typen Silverson, forarbejdning med andre rotor-statorer eller mikronisering eller en kombination deraf, og den milde kemiske behandling vælges ved en behandling, der omfatter et trin med syrehydrolyse, udført ved brug af en syreopløsning med en syrekoncentration på under 45%, hvor trinnet med syrehydrolyse udføres ved en temperatur på under 50 °C, eller et trin med syrehydrolyse udført ved en syrekoncentration på cirka 35-40% og en temperatur på cirka 45 °C, eller et trin med carboxymethylering eller 2,2,6,6-tetramethylpiperidinyl-l-oxyl (TEMPO)-medieret oxidation eller enzymbehandling eller en dampeksplosionsproces.
Applications Claiming Priority (2)
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| AU2013904527A AU2013904527A0 (en) | 2013-11-22 | Nanocellulose | |
| PCT/AU2014/050368 WO2015074120A1 (en) | 2013-11-22 | 2014-11-21 | Nanocellulose |
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| JP (1) | JP6602298B2 (da) |
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| AU (1) | AU2014353890B2 (da) |
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| WO2011035368A1 (en) * | 2009-09-23 | 2011-03-31 | Echidna Energy Pty Ltd | Methods and products using grass of the genus triodia |
| CN101949103B (zh) * | 2010-10-08 | 2012-07-04 | 东北林业大学 | 一种秸秆微纳米纤维素的制备方法 |
| WO2012097446A1 (en) * | 2011-01-21 | 2012-07-26 | Fpinnovations | High aspect ratio cellulose nanofilaments and method for their production |
| US8710213B2 (en) | 2012-05-14 | 2014-04-29 | The United States Of America As Represented By The Secretary Of Agriculture | Methods for integrating the production of cellulose nanofibrils with the production of cellulose nanocrystals |
| US9322133B2 (en) | 2012-11-30 | 2016-04-26 | Api Intellectual Property Holdings, Llc | Processes and apparatus for producing nanocellulose, and compositions and products produced therefrom |
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