DE102008051359A1 - Ultrafine, dry cellulose - Google Patents
Ultrafine, dry cellulose Download PDFInfo
- Publication number
- DE102008051359A1 DE102008051359A1 DE200810051359 DE102008051359A DE102008051359A1 DE 102008051359 A1 DE102008051359 A1 DE 102008051359A1 DE 200810051359 DE200810051359 DE 200810051359 DE 102008051359 A DE102008051359 A DE 102008051359A DE 102008051359 A1 DE102008051359 A1 DE 102008051359A1
- Authority
- DE
- Germany
- Prior art keywords
- cellulose
- ultrafine
- cellulose according
- dry
- particle size
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 229920002678 cellulose Polymers 0.000 title claims abstract description 27
- 239000001913 cellulose Substances 0.000 title claims abstract description 27
- 239000000654 additive Substances 0.000 claims description 7
- 239000002245 particle Substances 0.000 claims description 7
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 229920002488 Hemicellulose Polymers 0.000 claims description 3
- 229920005610 lignin Polymers 0.000 claims description 2
- 230000000996 additive effect Effects 0.000 claims 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical group O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims 2
- 150000004676 glycans Chemical class 0.000 claims 1
- 229920001282 polysaccharide Polymers 0.000 claims 1
- 239000005017 polysaccharide Substances 0.000 claims 1
- 239000000377 silicon dioxide Substances 0.000 claims 1
- 239000000725 suspension Substances 0.000 description 5
- 238000001035 drying Methods 0.000 description 4
- 238000000576 coating method Methods 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 2
- 238000009408 flooring Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000004033 plastic Substances 0.000 description 2
- 229920003023 plastic Polymers 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 238000003860 storage Methods 0.000 description 2
- 241000609240 Ambelania acida Species 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 1
- 241000209140 Triticum Species 0.000 description 1
- 235000021307 Triticum Nutrition 0.000 description 1
- 239000010905 bagasse Substances 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000002552 dosage form Substances 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 239000013538 functional additive Substances 0.000 description 1
- 238000000227 grinding Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 239000002966 varnish Substances 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L1/00—Compositions of cellulose, modified cellulose or cellulose derivatives
- C08L1/02—Cellulose; Modified cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08B—POLYSACCHARIDES; DERIVATIVES THEREOF
- C08B1/00—Preparatory treatment of cellulose for making derivatives thereof, e.g. pre-treatment, pre-soaking, activation
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Engineering & Computer Science (AREA)
- Biochemistry (AREA)
- Materials Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Paints Or Removers (AREA)
- Paper (AREA)
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
Ultrafeine Cellulose, dadurch gekennzeichnet, dass sie in trockener Form vorliegt.Ultrafine cellulose, characterized in that it is in dry form.
Description
Cellulose, auch vergesellschaftet mit Hemicellulosen und/oder Lignin, gewonnen aus Holz (verschiedene Zellstoffe) und/oder Einjahrespflanzen (z. B. Weizen, Bagasse usw.), lässt sich nach dem Stand der Technik bereits sehr fein zerkleinern.cellulose, also associated with hemicelluloses and / or lignin made of wood (various pulps) and / or annual plants (eg. Wheat, bagasse, etc.) already very finely chopped according to the state of the art.
Um allerdings in einen Partikelgrößenbereich <10 μm vorzustoßen, benötigt man spezielle Herstellungsverfahren. Die daraus resultierenden Suspensionen sind in ihrer Handhabung und Verwendung stark eingeschränkt. So ist die Lagerung über einen längeren Zeitraum nur unter Zusatz von starken Konservierungsmitteln möglich. Die Suspensionen sind zudem frostempfindlich. Aufgrund der wässrigen Darreichungsform sind diese Celluloseprodukte nicht universell einsetzbar, sondern weitestgehend auf wässrige Anwendungen begrenzt. Bei niedrigen Feststoffgehalten sind hohe Transport- und Lagerkosten die Folge; außerdem ist das Einbringen in eine Rezeptur gleichzeitig mit einem hohen Wassereintrag verbunden.Around however, to penetrate into a particle size range <10 microns, one needs special manufacturing process. The resulting suspensions are severely restricted in their handling and use. So is the storage over a longer one Period only possible with the addition of strong preservatives. The Suspensions are also sensitive to frost. Due to the watery Dosage form these cellulose products are not universally applicable, but largely to watery Applications limited. At low solids levels are high Transport and storage costs the consequence; In addition, the introduction is in a recipe connected simultaneously with a high water input.
Konzentriert man den Feststoffgehalt auf (bis zu 40–60%), so verbessert man zwar die zuvor genannten Punkte, erhält aber ein schwer dispergierbares Produkt mit knetartiger Konsistenz, so dass die Handhabung wiederum schwierig ist und die Einsatzbereiche limitiert sind. Zudem sind für die Dispergierung Zusatzaggregate notwendig, was zu einem verhältnismäßig hohen Mehraufwand führt.Concentrated If you increase the solids content (up to 40-60%), you will improve it the aforementioned points but a hard-dispersible product of a kneaded consistency, so that handling is again difficult and the application areas are limited. In addition are for the dispersion additional aggregates necessary, resulting in a relatively high Extra effort leads.
Um die geschilderten Probleme zu umgehen, bietet sich die Trocknung der Cellulosesuspensionen an. Allerdings erhält man bei konventionellen Trocknungsverfahren Celluloseagglomerate, die erheblich größer sind als die Cellulosepartikel in der Suspension. Auch eine trockene Mahlung dieser Trocknungsagglomerate ergibt, auf Grund deren Festigkeiten, nicht die gewünschten trockenen Feinstpartikel.Around To avoid the problems described, offers the drying the cellulosic suspensions. However, one gets at conventional Drying Process Cellulosic agglomerates that are significantly larger as the cellulose particles in the suspension. Also a dry one Grinding of these drying agglomerates, due to their strengths, not the desired ones dry fines.
Daher ist es bisher noch nicht gelungen, ein trockenes, extrem feines Cellulosepulver darzustellen.Therefore it has not yet succeeded, a dry, extremely fine Represent cellulose powder.
Der vorliegenden Erfindung liegt nun die Neuerung zu Grunde, dass es erstmals gelungen ist, gezielt eine ultrafeine trockene Cellulose darzustellen.Of the The present invention is based on the innovation that it succeeded for the first time, specifically an ultrafine dry cellulose display.
Diese ultrafeine, trockene Cellulose ist Gegenstand dieser Anmeldung.These ultrafine, dry cellulose is the subject of this application.
Die
Partikelgröße dieser
ultrafeine, trockenen Cellulose liegt zwischen 20 nm und 7 μm (bezogen
auf Volumen), bevorzugt <5 μm und besonders
bevorzugt <1 μm. Ultrafeine,
trockene Cellulose
Methode:Method:
- Gerät: Laserpartikelmessgerät Reckmann-Coulter LS 230, Small Volume Module+ (”Nassmodul”)Device: Laser Particle Sizer Reckmann-Coulter LS 230, Small Volume Module + ("wet module")
- Probenvorbereitung: Ansetzen einer ca. 6%igen Suspension mittels Ultra Turrax (3 min, Stufe 4). Unmittelbar vor der Messung wird die Probe ca. 1 min im Ultraschallbad dispergiert.Sample preparation: Preparation of an approx. 6% suspension by means of Ultra Turrax (3 min, level 4). Immediately before the measurement becomes the sample is dispersed for about 1 min in an ultrasonic bath.
Die Feuchte des Produkts beträgt max. 15% (Gewichtsverlust bei 105°C, 2h, Trockenschrank), bevorzugt max. 12% und besonders bevorzugt max. 8%.The Moisture of the product is Max. 15% (weight loss at 105 ° C, 2 h, drying oven), preferably max. 12% and more preferred Max. 8th%.
Ultrafeine Cellulose ist in den meisten Medien wie andere Pulver mit geringen Scherkräften (Propellerrührer) dispergierbar. Sie eignet sich für wässrige und nichtwässrige Anwendungen.Ultrafine Cellulose is low in most media like other powders shear (Propeller) dispersible. It is suitable for aqueous and non-aqueous Applications.
In vielen Fällen ist die Zugabe von Additiven denkbar und sinnvoll. Dabei kann die ultrafeine Cellulose aufgrund ihrer großen Oberfläche als Trägerstoff für diese Additive fungieren. Alternativ können die Additive die ultrafeine Cellulose modifizieren, sei es, um die Herstellung der ultrafeinen Cellulose oder die Eigenschaften in den jeweiligen Anwendungen positiv zu beeinflussen. Denkbar sind Koppler für einen besseren Verbund in Kunststoffen u. ä.In many cases is the addition of additives conceivable and useful. It can the Because of their high surface area, ultrafine cellulose acts as a carrier for these additives. Alternatively you can the additives modify the ultrafine cellulose, be it the Production of ultrafine cellulose or properties in positively influence the respective applications. Are conceivable Coupler for a better bond in plastics u. ä.
Ultrafeine trockene Cellulose kann auf Grund ihrer besonderen Eigenschaften in vielen Anwendungen als funktionelles Additiv und/oder als organischer Fein-Füllstoff zum Einsatz kommen, vor allem dort, wo sehr dünne Schichten eine Rolle spielen oder eine möglichst große Oberfläche gewünscht wird. Beispiele für derartige Anwendungen sind:
- – Streichfarben für Papierstrich
- – Filterhilfsmittel
- – PU-Beschichtungen
- – Folien
- – Farben und Lacke
- – Kunststoffe (Thermoplaste, Duroplaste)
- – Laminat-Fußböden/Bodenbeläge
- – Dekorpapier
- – Reifen
- – Kautschuk und/oder Gummierzeugnisse
- - coating colors for paper coating
- - Filter aids
- - PU coatings
- - slides
- - Paints and varnishes
- - plastics (thermoplastics, thermosets)
- - laminate flooring / flooring
- - decorative paper
- - Tires
- - Rubber and / or rubber products
Claims (7)
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810051359 DE102008051359A1 (en) | 2008-10-15 | 2008-10-15 | Ultrafine, dry cellulose |
| PCT/EP2009/007410 WO2010043397A2 (en) | 2008-10-15 | 2009-10-15 | Ultra-fine cellulose |
| EP09741223A EP2342010A2 (en) | 2008-10-15 | 2009-10-15 | Ultra-fine cellulose |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE200810051359 DE102008051359A1 (en) | 2008-10-15 | 2008-10-15 | Ultrafine, dry cellulose |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE102008051359A1 true DE102008051359A1 (en) | 2010-04-22 |
Family
ID=41479138
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DE200810051359 Withdrawn DE102008051359A1 (en) | 2008-10-15 | 2008-10-15 | Ultrafine, dry cellulose |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP2342010A2 (en) |
| DE (1) | DE102008051359A1 (en) |
| WO (1) | WO2010043397A2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014036578A1 (en) * | 2012-09-06 | 2014-03-13 | Lenzing Ag | Molded article containing an elastomer and cellulosic particles |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0966486B1 (en) * | 1997-12-14 | 2005-04-13 | THÜRINGISCHES INSTITUT FÜR TEXTIL- UND KUNSTSTOFF-FORSCHUNG e.V. | Method for producing regular porous cellulose pearls |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4309845C2 (en) * | 1993-03-26 | 1996-10-31 | Seitz Filter Werke | Filter material and process for its manufacture |
| ATE300990T1 (en) * | 1997-06-26 | 2005-08-15 | Asahi Medical Co | FILTER MEDIUM FOR SEPARATING LEUKOCYTES |
| DE19804882A1 (en) * | 1998-02-09 | 1999-08-12 | Herzog Stefan | Filter aid |
| US6660172B2 (en) * | 2002-01-31 | 2003-12-09 | Koslow Technologies Corporation | Precoat filtration media and methods of making and using |
| ES2416384T3 (en) * | 2004-09-27 | 2013-07-31 | J. Rettenmaier & Sohne Gmbh + Co. Kg | Procedure for the production of a substance based on cellulose as well as substance produced with it |
| US20060186050A1 (en) * | 2005-02-22 | 2006-08-24 | Halliburton Energy Services, Inc. | Devices and processes for removal of impurities from a fluid recovered from a subterranean environment |
| DE102006040899A1 (en) * | 2006-08-31 | 2008-03-20 | J. Rettenmaier & Söhne Gmbh + Co. Kg | Method for recovering gold or silver comprises leaching out a gold or silver ore using a cyanide alkaline solution, filtering the solution to remove the leached ore, treating the filtrate using elemental zinc and further processing |
-
2008
- 2008-10-15 DE DE200810051359 patent/DE102008051359A1/en not_active Withdrawn
-
2009
- 2009-10-15 EP EP09741223A patent/EP2342010A2/en not_active Withdrawn
- 2009-10-15 WO PCT/EP2009/007410 patent/WO2010043397A2/en not_active Ceased
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0966486B1 (en) * | 1997-12-14 | 2005-04-13 | THÜRINGISCHES INSTITUT FÜR TEXTIL- UND KUNSTSTOFF-FORSCHUNG e.V. | Method for producing regular porous cellulose pearls |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014036578A1 (en) * | 2012-09-06 | 2014-03-13 | Lenzing Ag | Molded article containing an elastomer and cellulosic particles |
| AT513306A1 (en) * | 2012-09-06 | 2014-03-15 | Chemiefaser Lenzing Ag | Shaped body containing an elastomer and cellulosic particles |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2010043397A3 (en) | 2010-07-01 |
| WO2010043397A2 (en) | 2010-04-22 |
| EP2342010A2 (en) | 2011-07-13 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| OP8 | Request for examination as to paragraph 44 patent law | ||
| R120 | Application withdrawn or ip right abandoned |
Effective date: 20140410 |