CN101089250A - Preparation and application of bamboo pulp fibre using ion liquid as solvent - Google Patents
Preparation and application of bamboo pulp fibre using ion liquid as solvent Download PDFInfo
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- CN101089250A CN101089250A CN 200710043564 CN200710043564A CN101089250A CN 101089250 A CN101089250 A CN 101089250A CN 200710043564 CN200710043564 CN 200710043564 CN 200710043564 A CN200710043564 A CN 200710043564A CN 101089250 A CN101089250 A CN 101089250A
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- bamboo pulp
- ionic liquid
- pulp fiber
- solvent
- ion
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Abstract
The present invention relates to a method for preparing bamboo pulp fiber by using ionic liquid as solvent and its application. Its preparation method includes the following steps: (1), uniformly mixing the pulverized bamboo pulp and ionic liquid, dissolving for 1-80 h at 35-160 deg.C so as to obtain the uniform stable spinning solution whose total solid content is 3-40%; (2), filtering and defoaming, then making the spinning solution be passed through multi-hole spinneret and fed into a coagulating bath and solidified, its spinning speed is 5-150 m/min; and (3), plasticizing, drawing, washing, bleaching, oiling and drying so as to obtain the bamboo pulp fiber product. The spinning solution prepared by said invention also can be used for preparing hollow fiber membrane, specially, can be used for making artificial organ and membrane for water purifier.
Description
Technical field
The invention belongs to the preparation and the application of bamboo pulp fiber preparation, particularly relating to a kind of is the preparation and the application of the bamboo pulp fiber of solvent with the ionic liquid.
Background technology
Not only storage level is big for cellulose in all substances of occurring in nature, and huge amount of recovery is arranged.Have only few cellulose to be made into fiber at present, be used to make the cellulose amount of fiber and film, 4% of the cellulose output of producing no more than world industry.Along with the mankind to the deepening continuously and the worsening shortages of resources such as oil, coal, natural gas of nature understanding, cellulosic utilization also will enlarge gradually.Cellulose fibre is because raw cellulose can be changed into steam and carbon dioxide by biological decomposition or safe combustion, and the destruction environmental problem that is caused by discarded object is few, and it is very necessary therefore developing cellulose fibre.
Make the semi-products of regenerated celulose fibre---the raw material source of pulp is also quite extensive, from the needlebush of high-quality and cotton linter to leaf wood, fast growing wood, bamboo and various herbaceous plant (as bagasse, reed, jute bar etc.).The felling because bamboo growth cycle weak point, general 3-5 can be become a useful person, the output height, low to the growing environment requirement, make cost lower.The bamboo fibre moisture pick-up properties is good in addition, gas permeability is strong, soft, fabric fall good, colouring is easy, have feel cool, therefore develop bamboo fibre and seem and be necessary very much.
What at present produce cellulose fibers mainly adopted is viscose process, and production process is tediously long and complicated, energy consumption and operating cost height, and exist waste gas, waste water, waste residue pollution, handle multinomial problem such as recovery.And ionic liquid exists with liquid state in the scope of broad as a kind of novel cellulose solvent, and has good heat endurance, and nontoxic, non-volatility helps environmental protection and operator ' s health.Yin, yang ion population by selecting to suit can change ion liquid physicochemical properties, dissolves multiple organic matter, inorganic matter and macromolecular material.Many ionic liquids are very big to cellulosic solubility, some in addition reach 35%, be no more than 10% and adopt cellulose yellow method to produce the cellulose concentration that viscose adopted, therefore adopt the ionic liquid produce cellulose fibers to enhance productivity greatly.
The bamboo pulp fiber report that sees report at present mainly contains three classes: adopt traditional viscose process to produce bamboo fibre, as CN1381620A, CN1405760A; Adopting the N-methylmorpholine oxide is solvent, and the dissolving bamboo pulp is made bamboo fibre, as CN1760412A; Adopting ionic liquid is that solvent dissolves bamboo pulp, makes bamboo pulp fiber.
Summary of the invention
The purpose of this invention is to provide with the ionic liquid preparation and the application of the bamboo pulp fiber that is solvent, this method has solved the problem of environmental pollution that present employing viscose process production of cellulose bamboo pulp fiber is brought, and satisfies and produces needs.
Of the present invention a kind of be the method that solvent prepares bamboo pulp fiber with the ionic liquid, comprise the following steps:
(1) bamboo pulp of Fen Suiing and ionic liquid mix, and dissolving is 1-80 hour under 35-160 ℃ of temperature, and forming total solid content is the stable homogeneous spinning solution of 3-40%;
(2) filter, after the deaeration, enter in the coagulating bath through single hole or porous spinnerets and to solidify, spinning speed be 5～150m rice/minute;
(3) behind plasticization drawing, again through wash, bleach, oil, drying, the bamboo pulp fiber goods.
Described bamboo pulp is meant bamboo pulp, and the degree of polymerization is 300～2500, alpha-cellulose content 〉=90%;
Described ionic liquid is made up of CATION and anion;
Described CATION is that substituting group is hydrogen, C
1～C
6Alkyl, vinyl, propenyl, cyclobutenyl, ethoxy, hydroxypropyl, alkoxyl in one or more quaternary ammonium alkyl ion, alkyl quaternary phosphonium ion, alkyl imidazole ion, alkyl pyridine ion;
Described anion is halide ion, BF
4 -, PF
4 -, SCN
-, CN
-, OCN
-, CNO
-, CF
3SO
3 -, CF
3COO
-, (CF
3SO
2)
2N
-Or (CF
3SO
2)
2Cl
-In a kind of;
Described coagulating bath is the ionic liquid aqueous solution of water or 0～60%, and coagulation bath temperature is 0～90 ℃;
One or more in white nervous stretching, jet stretch, plasticization drawing, air bath after-drawing or the retraction are selected in described stretching, and total drawing ratio is 10-200%;
Described bamboo pulp fiber goods are meant blend staple fibre or long filament, and the shape of fiber is conventional or special-shaped.
Of the present invention is the bamboo pulp stoste of solvent preparation with the ionic liquid, also can be used for making membrane product, especially for the film of using of manufacture of intraocular internal organs and water purifier.
Beneficial effect of the present invention:
(1) adopt ionic liquid to prepare fiber, avoided the tediously long and complicated production process of viscose process, production process obviously shortens, and process energy consumption and operating cost are low, and help environmental protection and operator ' s health, meet the requirement of green production;
(2) the preparation-obtained bamboo pulp fiber of the present invention has excellent mechanical intensity, the conventional viscose that its mechanical performance is produced apparently higher than corresponding employing viscose process;
(3) the natural antibacterial performance that abundant, the wide material sources of bamboo raw material resources, and bamboo fibre have,, hygienic material medical for being used as provides a kind of material, as: can be made into mouth mask, protection pad, gasket material, sanitary napkin, packaging bag etc.;
(4) fiber that obtains not only can be used as textile raw material, and can be used as the precursor of charcoal fiber, the fabric that bamboo fibre is made has that moisture pick-up properties is good, gas permeability is strong, soft, fabric fall good, colouring is easy, have advantages such as feel cool.
The specific embodiment
Below in conjunction with specific embodiment, further set forth the present invention.Should be understood that these embodiment only to be used to the present invention is described and be not used in and limit the scope of the invention.Should be understood that in addition those skilled in the art can make various changes or modifications the present invention after the content of having read the present invention's instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
Embodiment 1
1 part of bamboo pulp and 20 parts of [BMIM] Cl ionic liquids of pulverizing are mixed, stirred 24 hours down, obtain spinning solution at 45 ℃.Spinning solution after filtration, after the deaeration, enter into through the porous spinnerets and to contain 5% ion liquid coagulating bath, coagulation bath temperature is 25 ℃.After 10% stretching, again through wash, bleach, oil, dry supervisor, spinning speed is 5 meters/minute, obtains the fiber that intensity is 3.2cN/dtex.
Embodiment 2
1 part of bamboo pulp and 9 parts of [BMIM] Br ionic liquids of pulverizing are mixed, stirred 120 hours down, obtain spinning solution at 100 ℃.Spinning solution after filtration, after the deaeration, enter into the water coagulating bath through the porous spinnerets, coagulation bath temperature is 15 ℃.After 3% stretching, again through wash, bleach, oil, dry supervisor, spinning speed is 20 meters/minute, obtains the fiber that intensity is 3.5cN/dtex.
Embodiment 3
1 part of bamboo pulp and 2 parts of [AMIM] Br ionic liquids of pulverizing are mixed, stirred 80 hours down, obtain spinning solution at 60 ℃.Spinning solution after filtration, after the deaeration, enter into through the porous spinnerets and to contain 25% ion liquid coagulating bath, coagulation bath temperature is 55 ℃.Behind 8% plasticization drawing, again through wash, bleach, oil, dry supervisor, spinning speed is 30 meters/minute, obtains the fiber that intensity is 4.0cN/dtex.
Claims (8)
1. one kind is the method that solvent prepares bamboo pulp fiber with the ionic liquid, comprises the following steps:
(1) bamboo pulp of Fen Suiing and ionic liquid mix, and dissolving is 1-80 hour under 35-160 ℃ of temperature, and forming total solid content is the stable homogeneous spinning solution of 3-40%;
(2) filter, after the deaeration, enter in the coagulating bath through single hole or porous spinnerets and to solidify, spinning speed be 5～150m rice/minute;
(3) behind plasticization drawing, again through wash, bleach, oil, drying, the bamboo pulp fiber goods.
2. according to claim 1 a kind of be the method that solvent prepares bamboo pulp fiber with the ionic liquid, it is characterized in that: described bamboo pulp is bamboo pulp, the degree of polymerization is 300～2500, alpha-cellulose content 〉=90%.
3. according to claim 1 a kind of be the method that solvent prepares bamboo pulp fiber with the ionic liquid, it is characterized in that: described ionic liquid is made up of CATION and anion, CATION is that substituting group is hydrogen, C
1～C
6Alkyl, vinyl, propenyl, cyclobutenyl, ethoxy, hydroxypropyl, alkoxyl in one or more quaternary ammonium alkyl ion, alkyl quaternary phosphonium ion, alkyl imidazole ion, alkyl pyridine ion; Anion is halide ion, BF
4 -, PF
4 -, SCN
-, CN
-, OCN
-, CNO
-, CF
3SO
3 -, CF
3COO
-, (CF
3SO
2)
2N
-Or (CF
3SO
2)
2Cl
-In a kind of.
4. according to claim 1 a kind of be the method that solvent prepares bamboo pulp fiber with the ionic liquid, it is characterized in that: described coagulating bath is the ionic liquid aqueous solution of water or 0～60%, coagulation bath temperature is 0～90 ℃.
5. according to claim 1 a kind of be the method that solvent prepares bamboo pulp fiber with the ionic liquid, it is characterized in that: described stretching is selected from one or more in nervous stretching, jet stretch, plasticization drawing, air bath after-drawing or the retraction, and total drawing ratio is 10-200%.
6. according to claim 1 a kind of be the method that solvent prepares bamboo pulp fiber with the ionic liquid, it is characterized in that: the spinning process that is adopted is wet spinning, melt and spray wet spinning or dry-jet wet spinning.
7. according to claim 1 a kind of be the method that solvent prepares bamboo pulp fiber with the ionic liquid, it is characterized in that: described bamboo pulp fiber goods are blend staple fibre or long filament, the shape of fiber is conventional or special-shaped.
8. one kind is the bamboo pulp fiber of solvent preparation with the ionic liquid, is used for the film of using of manufacture of intraocular internal organs and water purifier.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710043564 CN101089250A (en) | 2007-07-06 | 2007-07-06 | Preparation and application of bamboo pulp fibre using ion liquid as solvent |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200710043564 CN101089250A (en) | 2007-07-06 | 2007-07-06 | Preparation and application of bamboo pulp fibre using ion liquid as solvent |
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| Publication Number | Publication Date |
|---|---|
| CN101089250A true CN101089250A (en) | 2007-12-19 |
Family
ID=38942746
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200710043564 Pending CN101089250A (en) | 2007-07-06 | 2007-07-06 | Preparation and application of bamboo pulp fibre using ion liquid as solvent |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2199319A1 (en) | 2008-12-19 | 2010-06-23 | Gambro Lundia AB | Virus filter |
| CN102002762A (en) * | 2010-11-02 | 2011-04-06 | 山东海龙股份有限公司 | Method for preparing high-strength special-shape cellulose fiber |
| CN104520477A (en) * | 2012-08-07 | 2015-04-15 | 日东纺绩株式会社 | Method for producing cellulose fibers |
| CN104928783A (en) * | 2014-03-20 | 2015-09-23 | 湖北孝棉实业集团有限责任公司 | Method using ionic liquid as solvent to prepare traditional Chinese medicine functional bamboo fiber |
| CN110670236A (en) * | 2019-08-29 | 2020-01-10 | 海门市同泰工艺品有限公司 | Environment-friendly composite flocculus and preparation method thereof |
| CN112538664A (en) * | 2020-11-11 | 2021-03-23 | 南通纺织丝绸产业技术研究院 | Anti-counterfeiting bamboo pulp fiber, preparation method and anti-counterfeiting method |
-
2007
- 2007-07-06 CN CN 200710043564 patent/CN101089250A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2199319A1 (en) | 2008-12-19 | 2010-06-23 | Gambro Lundia AB | Virus filter |
| CN102002762A (en) * | 2010-11-02 | 2011-04-06 | 山东海龙股份有限公司 | Method for preparing high-strength special-shape cellulose fiber |
| CN104520477A (en) * | 2012-08-07 | 2015-04-15 | 日东纺绩株式会社 | Method for producing cellulose fibers |
| CN104928783A (en) * | 2014-03-20 | 2015-09-23 | 湖北孝棉实业集团有限责任公司 | Method using ionic liquid as solvent to prepare traditional Chinese medicine functional bamboo fiber |
| CN110670236A (en) * | 2019-08-29 | 2020-01-10 | 海门市同泰工艺品有限公司 | Environment-friendly composite flocculus and preparation method thereof |
| CN112538664A (en) * | 2020-11-11 | 2021-03-23 | 南通纺织丝绸产业技术研究院 | Anti-counterfeiting bamboo pulp fiber, preparation method and anti-counterfeiting method |
| CN112538664B (en) * | 2020-11-11 | 2022-02-11 | 南通纺织丝绸产业技术研究院 | Anti-counterfeiting bamboo pulp fiber, preparation method and anti-counterfeiting method |
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Open date: 20071219 |