RU2010138539A - METHOD FOR PRODUCING HYDROGEL OF NANOCRYSTALLINE CELLULOSE - Google Patents
METHOD FOR PRODUCING HYDROGEL OF NANOCRYSTALLINE CELLULOSE Download PDFInfo
- Publication number
- RU2010138539A RU2010138539A RU2010138539/05A RU2010138539A RU2010138539A RU 2010138539 A RU2010138539 A RU 2010138539A RU 2010138539/05 A RU2010138539/05 A RU 2010138539/05A RU 2010138539 A RU2010138539 A RU 2010138539A RU 2010138539 A RU2010138539 A RU 2010138539A
- Authority
- RU
- Russia
- Prior art keywords
- cellulose
- acid hydrolysis
- subjected
- mechanical dispersion
- acid
- Prior art date
Links
Landscapes
- Polysaccharides And Polysaccharide Derivatives (AREA)
Abstract
1. Способ получения гидрогеля нанокристаллической целлюлозы, заключающийся в деполимеризации исходного сырьевого целлюлозосодержащего компонента путем поэтапной его обработки с использованием кислотного гидролиза при повышенной температуре, в очистке целлюлозного полуфабриката от остатков кислоты и последующей механической обработки полученного продукта высоким усилием сдвига с образованием гидрогеля линейных частиц нанокристаллической целлюлозы (вискеров), отличающийся тем, что перед этапом кислотного гидролиза целлюлозосодержащий компонент на основе небеленой и беленой технической целлюлозы доводят до влажности 20-85% и подвергают радиационной деструкции при дозе ионизирующего излучения 3-17 Мрад, полученный после радиационной обработки целлюлозный полуфабрикат подвергают кислотному гидролизу с одновременным его механическим диспергированием в водной среде, при этом кислотный гидролиз осуществляют при следующем соотношении компонентов, мас.%: ! сырье 5-10 кислота 2÷20 вода остальное до жидкостного модуля 5÷30 (м3/т) ! 2. Способ по п.1, отличающийся тем, что кислотный гидролиз с механическим диспергированием осуществляют при температуре 80-105°С при продолжительности обработки 90-120 мин. ! 3. Способ по п.1, отличающийся тем, что механическое диспергирование компонентов при кислотном гидролизе осуществляют при частоте вращения ротора не менее 300 мин-1. ! 4. Способ по п.1, отличающийся тем, что при кислотном гидролизе с механическим диспергированием в жидкостной модуль добавляют 1,5-15 мас.% пергидроля. ! 5. Способ по п.1, отличающийся тем, что полуфабрикат целлюлозы после кислотного гидролиза подвергают щелоч 1. A method of producing a nanocrystalline cellulose hydrogel, which consists in depolymerizing the initial raw cellulose-containing component by processing it in stages using acid hydrolysis at elevated temperature, purifying the acid residue from the cellulose product and subsequently machining the resulting product with high shear with the formation of a hydrogel of linear nanocrystalline cellulose linear particles (whiskers), characterized in that before the stage of acid hydrolysis of cellulose The chewing component based on unbleached and bleached technical cellulose is brought to a moisture content of 20-85% and subjected to radiation degradation at a dose of ionizing radiation of 3-17 Mrad, the cellulose prefabricated product obtained after radiation treatment is subjected to acid hydrolysis with simultaneous mechanical dispersion in an aqueous medium, while acid hydrolysis is carried out in the following ratio of components, wt.%:! raw materials 5-10 acid 2 ÷ 20 water the rest to the liquid module 5 ÷ 30 (m3 / t)! 2. The method according to claim 1, characterized in that the acid hydrolysis with mechanical dispersion is carried out at a temperature of 80-105 ° C with a processing time of 90-120 minutes ! 3. The method according to claim 1, characterized in that the mechanical dispersion of the components during acid hydrolysis is carried out at a rotor speed of at least 300 min-1. ! 4. The method according to claim 1, characterized in that during acid hydrolysis with mechanical dispersion, 1.5-15 wt.% Perhydrol is added to the liquid module. ! 5. The method according to claim 1, characterized in that the semi-finished cellulose is subjected to alkali after acid hydrolysis
Claims (10)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010138539/05A RU2494109C2 (en) | 2010-09-20 | 2010-09-20 | Method of producing hydrogel of nanocrystalline cellulose |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010138539/05A RU2494109C2 (en) | 2010-09-20 | 2010-09-20 | Method of producing hydrogel of nanocrystalline cellulose |
Publications (2)
Publication Number | Publication Date |
---|---|
RU2010138539A true RU2010138539A (en) | 2012-03-27 |
RU2494109C2 RU2494109C2 (en) | 2013-09-27 |
Family
ID=46030504
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
RU2010138539/05A RU2494109C2 (en) | 2010-09-20 | 2010-09-20 | Method of producing hydrogel of nanocrystalline cellulose |
Country Status (1)
Country | Link |
---|---|
RU (1) | RU2494109C2 (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103174046A (en) * | 2013-04-11 | 2013-06-26 | 浙江理工大学 | Method for preparing nanometer microcrystalline cellulose by combining acid hydrolysis and ultrasonic treatment |
CN107268182A (en) * | 2017-05-18 | 2017-10-20 | 武汉纺织大学 | Nano micro crystal cellulose nano-fiber composite film to humidity sensitive and preparation method thereof |
US11931469B2 (en) | 2017-07-28 | 2024-03-19 | Kimberly-Clark Worldwide, Inc. | Absorbent article having a reduced humidity level |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2556144C1 (en) * | 2014-04-02 | 2015-07-10 | Закрытое акционерное общество "Инновационный центр "Бирюч" (ЗАО "ИЦ "Бирюч") | Methods of obtaining nanocrystalline cellulose from bagasse |
KR102294696B1 (en) | 2018-06-27 | 2021-08-30 | 킴벌리-클라크 월드와이드, 인크. | Nanopore Superabsorbent Particles |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
ATE361383T1 (en) * | 2004-12-07 | 2007-05-15 | Snecma Propulsion Solide | METHOD FOR PRODUCING YARN OR FIBER SHEETS FROM CARBON FROM A CELLULOSE MATERIAL |
NO20065147L (en) * | 2006-11-08 | 2008-05-09 | Ntnu Tech Transfer As | Nanocomposites based on cellulose whiskers and cellulose plastic |
-
2010
- 2010-09-20 RU RU2010138539/05A patent/RU2494109C2/en not_active IP Right Cessation
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103174046A (en) * | 2013-04-11 | 2013-06-26 | 浙江理工大学 | Method for preparing nanometer microcrystalline cellulose by combining acid hydrolysis and ultrasonic treatment |
CN103174046B (en) * | 2013-04-11 | 2015-08-26 | 浙江理工大学 | A kind of acid hydrolysis and ultrasonic process coordinate system are for the method for nano micro crystal cellulose |
CN107268182A (en) * | 2017-05-18 | 2017-10-20 | 武汉纺织大学 | Nano micro crystal cellulose nano-fiber composite film to humidity sensitive and preparation method thereof |
US11931469B2 (en) | 2017-07-28 | 2024-03-19 | Kimberly-Clark Worldwide, Inc. | Absorbent article having a reduced humidity level |
US11931468B2 (en) | 2017-07-28 | 2024-03-19 | Kimberly-Clark Worldwide, Inc. | Feminine care absorbent article containing nanoporous superabsorbent particles |
Also Published As
Publication number | Publication date |
---|---|
RU2494109C2 (en) | 2013-09-27 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
RU2010138539A (en) | METHOD FOR PRODUCING HYDROGEL OF NANOCRYSTALLINE CELLULOSE | |
RU2008148348A (en) | METHOD FOR PRODUCING SOLUBLE CELLULOSE, VISCOSE FIBERS AND LIOCELLA FIBER | |
RU2012104000A (en) | METHOD FOR PRODUCING MICROFIBRILLATED CELLULOSE AND PRODUCED MICROFIBRILLATED CELLULOSE | |
CN102643357B (en) | Method for preparing sodium carboxymethylcellulose by abandoned cotton fabrics | |
CA2568594C (en) | Method for producing a dissovling pulp | |
RU2014111256A (en) | MULTI-STAGE CATALYTIC CARBOXYLATION OF MERCERIZED CELLULOSE FIBERS | |
RU2010150201A (en) | METHOD FOR DISSOLVING CELLULOSE AND PRODUCT FROM CELLULOSE OBTAINED FROM A SOLUTION INCLUDING DISSOLVED CELLULOSE | |
CZ309860B6 (en) | An aqueous composition of an acid | |
CN109403115B (en) | Method for producing acetified-grade dissolving pulp by using poplar slabs | |
CN115584565B (en) | Mushroom spinning slurry and preparation method and application thereof | |
RU2495830C1 (en) | Method of extracting ions of heavy metals from aqueous solutions | |
CN103145881B (en) | Method for preparing hemicellulose from maize straws by adopting solid base catalyst | |
ATE340807T1 (en) | METHOD FOR PRODUCING FIBERS, FILM AND OTHER PRODUCTS FROM MODIFIED SOLUBLE CELLULOSE | |
KR20210015858A (en) | Method for producing cellulose carbamate | |
RU2012139480A (en) | METHOD FOR PRELIMINARY PROCESSING FOR PRODUCING WATER-SOLUBLE SUGARS FROM LIGNO CELLULAR MATERIAL | |
CN107904271A (en) | A kind of method of microwave reinforced soda lime preprocessing lignocellulose | |
JP2016211125A5 (en) | ||
CN100441773C (en) | Method of ultrasound in use for producing purified pulp | |
JP2017535690A (en) | Cellulose production method | |
CN108586770B (en) | Method for cleaning and separating lignin and hemicellulose from plant biomass | |
US20180291118A1 (en) | Method for improving quality and reactivity of cellulose | |
RU2012129518A (en) | METHOD FOR PRODUCING SUGARS FROM CELLULOSE-CONTAINING RAW MATERIALS | |
RU2312945C1 (en) | Cellulose production process | |
JP2014034744A (en) | Method for producing dissolving kraft pulp | |
UA113907U (en) | METHOD OF MICROCrystalline cellulose production |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
MM4A | The patent is invalid due to non-payment of fees |
Effective date: 20130922 |