CN101792538A - Method for producing cellulose sponge by adopting ionic liquid - Google Patents
Method for producing cellulose sponge by adopting ionic liquid Download PDFInfo
- Publication number
- CN101792538A CN101792538A CN 201010140264 CN201010140264A CN101792538A CN 101792538 A CN101792538 A CN 101792538A CN 201010140264 CN201010140264 CN 201010140264 CN 201010140264 A CN201010140264 A CN 201010140264A CN 101792538 A CN101792538 A CN 101792538A
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- China
- Prior art keywords
- cellulose
- ionic liquid
- sponge
- mierocrystalline
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- 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.)
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- 229920002678 cellulose Polymers 0.000 title claims abstract description 101
- 239000001913 cellulose Substances 0.000 title claims abstract description 101
- 239000002608 ionic liquid Substances 0.000 title claims abstract description 36
- 238000004519 manufacturing process Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 claims abstract description 22
- 239000000835 fiber Substances 0.000 claims abstract description 21
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 10
- 239000000203 mixture Substances 0.000 claims abstract description 9
- 150000002500 ions Chemical class 0.000 claims description 13
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 11
- 238000013016 damping Methods 0.000 claims description 8
- 229920000297 Rayon Polymers 0.000 claims description 7
- 239000011148 porous material Substances 0.000 claims description 7
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 6
- 238000001556 precipitation Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 5
- 238000011010 flushing procedure Methods 0.000 claims description 4
- 150000002460 imidazoles Chemical class 0.000 claims description 4
- 238000006116 polymerization reaction Methods 0.000 claims description 4
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 125000004432 carbon atom Chemical group C* 0.000 claims description 2
- 238000004090 dissolution Methods 0.000 claims description 2
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 2
- 239000002994 raw material Substances 0.000 abstract description 7
- 150000001875 compounds Chemical class 0.000 abstract description 6
- 239000002904 solvent Substances 0.000 abstract description 5
- 241000282414 Homo sapiens Species 0.000 abstract description 4
- 239000004793 Polystyrene Substances 0.000 abstract description 3
- 230000007613 environmental effect Effects 0.000 abstract description 3
- 229920002223 polystyrene Polymers 0.000 abstract description 3
- 229920002635 polyurethane Polymers 0.000 abstract description 3
- 239000004814 polyurethane Substances 0.000 abstract description 3
- 238000003756 stirring Methods 0.000 abstract description 3
- 230000002349 favourable effect Effects 0.000 abstract 2
- 229920003043 Cellulose fiber Polymers 0.000 abstract 1
- 230000001112 coagulating effect Effects 0.000 abstract 1
- 238000010298 pulverizing process Methods 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 239000000243 solution Substances 0.000 description 8
- 238000005516 engineering process Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000004140 cleaning Methods 0.000 description 5
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 description 3
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 239000003317 industrial substance Substances 0.000 description 2
- 230000007483 microbial process Effects 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000008929 regeneration Effects 0.000 description 2
- 238000011069 regeneration method Methods 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002939 deleterious effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000005518 electrochemistry Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 231100000252 nontoxic Toxicity 0.000 description 1
- 230000003000 nontoxic effect Effects 0.000 description 1
- 150000002894 organic compounds Chemical class 0.000 description 1
- 230000029553 photosynthesis Effects 0.000 description 1
- 238000010672 photosynthesis Methods 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 238000003786 synthesis reaction Methods 0.000 description 1
- 239000002341 toxic gas Substances 0.000 description 1
Abstract
The invention discloses a method for producing cellulose sponge by adopting ionic liquid. The method comprises the following steps of: after pulverizing cellulose pulp, mixing and dissolving the pulverized cellulose pulp and the ionic liquid, defoaming the mixture to prepare cellulose/ionic liquid solution; adding a pore-forming agent and reinforced fiber into the cellulose/ionic liquid solution with stirring to form a cellulose compound body; putting the cellulose compound body in coagulating bath to separate out cellulose; and adding a debonding agent into the cellulose, and washing to obtain the cellulose sponge. The method adopts the cellulose serving as a raw material for producing the sponge instead of polystyrene, polyurethane and other common raw materials for producing the sponge, reduces the consumption of natural energy, and is favorable for the environmental protection of human beings; and in the production process, the method adopts the ionic liquid as a solvent, is favorable for the environmental protection and the health of operators, and realizes the cleanness and green production of cellulose fiber.
Description
Technical field
The present invention relates to a kind of production method of cellulose sponge of novel degradable, relate in particular to a kind of production method of ion liquid novel dissolvent cellulose sponge.
Background technology
Loft is good because of having, advantages such as quality is soft, good water absorption are able to widespread use for sponge.But the chemical ingredients of general sponge is class materials such as polystyrene, polyurethane.The preparation of this class material all can produce human body and the deleterious material of environment on no matter still being technology from raw material, runs counter to the theory of human environment protection and Sustainable development.And produce this class sponge, the natural energy source of consumption is also very high.In view of the deficiency of above existence, this class sponge is in by other products and replaces and superseded gradually condition.Mierocrystalline cellulose is one of the abundantest renewable resources of occurring in nature, and annual tellurian plant can be synthesized about 100,000,000,000,000 tons Mierocrystalline cellulose by photosynthesis.Mierocrystalline cellulose is a kind of Biodegradable high-molecular compound, and it is excellent property in use, can be decomposed into low molecular compound rapidly again under microbial process after discarding.Under the situation that reserves descend day by day, industrial chemicals is in short supply of current oil and coal, utilize Mierocrystalline cellulose to replace traditional industrial chemicals to produce novel daily product, crucial meaning is arranged.Cellulose sponge is to be basic raw material with the Mierocrystalline cellulose, a kind of porous cellulose product for preparing by certain method, be used for replacing traditional sponge.It both can be used as cleaning and the wiping that general cleaning supplies are used for kitchen, bathroom, automobile etc., also can be used as the professional cleaning supplies in places such as restaurant, hospital.
Use a large amount of NaOH, H in traditional viscose glue glue generative process
2SO
4And CS
2, emit H
2Toxic gases such as S pollute empty G﹠W, and ecotope is destroyed.China is viscose fiber big producing country in the world, and viscose fiber occupies very big ratio in the world.In recent years, because environment protection is attached great importance in countries in the world, the production of viscose fiber mainly concentrates on some developing countries at present.Many developed countries strengthen the research to the processing of pollution problem in the adhering process on the one hand, have proposed to reduce use CS
2Technology and solve to produce in three wastes problem, the also novel process of good cellulose family product promptly adopts solvent method producd fibers cellulose product on the other hand.
Ionic liquid is the green solvent that a class of rising in recent years has application prospect, non-volatile with it, to water and air good solubility stable and that inorganic, organic compound and macromolecular material are had and be widely used in fields such as electrochemistry, organic synthesis, chemical separating and material preparation.With the ionic liquid is solvent, study cellulosic dissolving and regeneration with and derivative reaction, become one of new technology of filamentary material processing.Studies show that, for cellulose/ionic liquid solution, can realize cellulosic regeneration by peptizer, this produces for cleaning of cellulosic fibre useful thinking is provided.
Summary of the invention
Technical problem to be solved by this invention provides a kind of method that adopts ionic liquid production of cellulose sponge, the method for preparing cellulose sponge that a kind of technology is simple, less energy consumption, environmental protection and suitable industrialization are produced.
For solving the problems of the technologies described above, technical scheme of the present invention is:
A kind of method that adopts ionic liquid production of cellulose sponge, described method is after cellulose pulp is pulverized, with be configured to cellulose/ionic liquid solution after ionic liquid mixed dissolution and the deaeration, under whipped state, in cellulose/ionic liquid solution, add pore former and fortifying fibre formation Mierocrystalline cellulose mixture, through precipitation bath Mierocrystalline cellulose is separated out described Mierocrystalline cellulose mixture, simultaneously the pore former stripping, add debonding agent then, flushing obtains cellulose sponge.
The polymerization degree of described cellulose pulp is 350～1200.
The cellulose concentration of the described cellulose/ionic liquid solution that is mixed with is 5-25wt%.
Described cellulose pulp with carry out damping earlier before ionic liquid mixes, the cellulose pulp water ratio after the damping is 2～5wt%.
Described pore former is Na
2SO
410H
2O, the add-on of described pore former is 10～40 times of a-cellulose in the Mierocrystalline cellulose; Described fortifying fibre is a kind of of synthon, natural fiber or viscose fiber, and the length of described fortifying fibre is 1～20mm, the add-on of described fortifying fibre be in the Mierocrystalline cellulose a-cellulose 2～10%; Described debonding agent is the quaternary ammonium salt that contains 18 above C atoms, the add-on of described debonding agent be in the Mierocrystalline cellulose a-cellulose 3.5～8.0%.
Described precipitation bath is one or both in water, the acetone, and the temperature of described precipitation bath is 10～50 ℃.
Described ion liquid negatively charged ion is Cl
-And Br
-One or both, described positively charged ion is the substituting group imidazoles.
Owing to adopted technique scheme, the invention has the beneficial effects as follows:
1, to adopt Mierocrystalline cellulose be the raw material of producing sponge in the present invention, is used for replacing sponge to produce raw materials such as polystyrene commonly used, polyurethane, and Mierocrystalline cellulose belongs to renewable resources, has reduced the consumption of natural energy source; And Mierocrystalline cellulose is a kind of Biodegradable high-molecular compound, and it is excellent property in use, can be decomposed into low molecular compound rapidly again under microbial process after discarded, and therefore adopting Mierocrystalline cellulose is the sponge of raw material, helps human environment protection.
2, the present invention adopts ionic liquid as solvent, and the nontoxic non-volatility of production process is pollution-free, helps environment protection and operator's health, and is easy to reclaim, and has realized cleaning and green production of cellulosic fibre.
Embodiment
Below in conjunction with 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
With the polymerization degree is that 600 cellulose pulp is ground into the Mierocrystalline cellulose end, and damping, and the water ratio that makes cellulose pulp is 3wt%, will be Cl by negatively charged ion
-The ion liquid aqueous solution of forming for the substituting group imidazoles with positively charged ion is enrichment under reduced pressure, and making its water ratio is 10wt%, and it is 10% that the end of the Mierocrystalline cellulose after the damping and ionic liquid are mixed with cellulose/ionic liquid solution concentration; Stir the Na that in cellulose/ionic liquid solution, adds 14 times of cellulose down respectively
2SO
410H
2The length of O and relative cellulose 4% is that the viscose staple fibre of 1～20mm forms the Mierocrystalline cellulose mixture, through 25 ℃ acetone Mierocrystalline cellulose is separated out the Mierocrystalline cellulose mixture and also makes Na simultaneously
2SO
410H
2O stripping pore-forming adds the debonding agent with respect to cellulose 4.0%, and flushing obtains cellulose sponge.
Embodiment 2
With the polymerization degree is that 800 cellulose pulp is ground into the Mierocrystalline cellulose end, and damping, and the water ratio that makes cellulose pulp is 3wt%, will be Cl by negatively charged ion
-The ion liquid aqueous solution of forming for the substituting group imidazoles with positively charged ion is enrichment under reduced pressure, and making its water ratio is 10wt%, and it is 20% that the end of the Mierocrystalline cellulose after the damping and ionic liquid are mixed with cellulose/ionic liquid solution concentration; Stir the Na that in cellulose/ionic liquid solution, adds 24 times of cellulose down respectively
2SO
410H
2The length of O and relative cellulose 8% is that the polyester staple fiber of 1～20mm forms the Mierocrystalline cellulose mixture, through 30 ℃ water Mierocrystalline cellulose is separated out the Mierocrystalline cellulose mixture and also makes Na simultaneously
2SO
410H
2O stripping pore-forming adds the debonding agent with respect to cellulose 5.2%, and flushing obtains cellulose sponge.
Claims (7)
1. method that adopts ionic liquid production of cellulose sponge, it is characterized in that: described method is after cellulose pulp is pulverized, with be configured to cellulose/ionic liquid solution after ionic liquid mixed dissolution and the deaeration, under whipped state, in cellulose/ionic liquid solution, add pore former and fortifying fibre formation Mierocrystalline cellulose mixture, through precipitation bath Mierocrystalline cellulose is separated out described Mierocrystalline cellulose mixture, add debonding agent then, flushing obtains cellulose sponge.
2. the method for employing ionic liquid production of cellulose sponge as claimed in claim 1 is characterized in that: the polymerization degree of described cellulose pulp is 350～1200.
3. the method for employing ionic liquid production of cellulose sponge as claimed in claim 1 is characterized in that: the cellulose concentration of the described cellulose/ionic liquid solution that is mixed with is 5-25wt%.
4. the method for employing ionic liquid production of cellulose sponge as claimed in claim 1 is characterized in that: described cellulose pulp with carry out damping earlier before ionic liquid mixes, the cellulose pulp water ratio after the damping is 2～5wt%.
5. the method for employing ionic liquid production of cellulose sponge as claimed in claim 1 is characterized in that: described pore former is Na
2SO
410H
2O, the add-on of described pore former is 10～40 times of a-cellulose in the Mierocrystalline cellulose; Described fortifying fibre is a kind of of synthon, natural fiber or viscose fiber, and the length of described fortifying fibre is 1～20mm, the add-on of described fortifying fibre be in the Mierocrystalline cellulose a-cellulose 2～10%; Described debonding agent is the quaternary ammonium salt that contains 18 above C atoms, the add-on of described debonding agent be in the Mierocrystalline cellulose a-cellulose 3.5～8.0%.
6. adopt the method for ionic liquid production of cellulose sponge as described any of claim 1 to 5, it is characterized in that: described precipitation bath is one or both in water, the acetone, and the temperature of described precipitation bath is 10～50 ℃.
7. adopt the method for ionic liquid production of cellulose sponge as described any of claim 1 to 5, it is characterized in that: described ion liquid negatively charged ion is Cl
-And Br
-One or both, described positively charged ion is the substituting group imidazoles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140264 CN101792538A (en) | 2010-04-02 | 2010-04-02 | Method for producing cellulose sponge by adopting ionic liquid |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010140264 CN101792538A (en) | 2010-04-02 | 2010-04-02 | Method for producing cellulose sponge by adopting ionic liquid |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101792538A true CN101792538A (en) | 2010-08-04 |
Family
ID=42585469
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010140264 Pending CN101792538A (en) | 2010-04-02 | 2010-04-02 | Method for producing cellulose sponge by adopting ionic liquid |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101792538A (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102828283A (en) * | 2012-09-10 | 2012-12-19 | 东华大学 | Method for preparing chitosan and cellulose complex fibers by binary solvent system |
| WO2014201479A1 (en) | 2013-06-19 | 2014-12-24 | Lenzing Ag | New environmentally friendly method for producing sponges and sponge cloths from polysaccharides |
| WO2014201480A1 (en) | 2013-06-19 | 2014-12-24 | Lenzing Ag | New environmentally friendly method for producing sponges and sponge cloths from polysaccharides |
| CN104927081A (en) * | 2015-06-11 | 2015-09-23 | 宁波尼可海绵科技有限公司 | Foaming device and foaming method for degradable cellulose sponge product |
| CN105176120A (en) * | 2015-07-27 | 2015-12-23 | 江苏科技大学 | Preparation method for antibacterial cellulose sponge material |
| CN106893147A (en) * | 2017-03-13 | 2017-06-27 | 山东圣泉新材料股份有限公司 | A kind of corn cob fiber element expanded material and its production and use |
| CN109679135A (en) * | 2018-12-27 | 2019-04-26 | 江南大学 | A kind of green composite foam material and preparation method thereof |
| CN109880131A (en) * | 2019-01-25 | 2019-06-14 | 华中科技大学 | A kind of ionic liquid plasticized fibre element clean method for preparing |
| CN110922641A (en) * | 2019-05-09 | 2020-03-27 | 河南应用技术职业学院 | Ecological environment-friendly material and preparation method thereof |
| DE102011122560B4 (en) | 2011-12-29 | 2022-09-08 | Technikum Laubholz GmbH (TLH) | Textile-reinforced molding, a process for its production and its use |
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|---|---|---|---|---|
| CN1147271C (en) * | 1997-12-03 | 2004-04-28 | 卡尔纳罗两合公司 | Sponge towel based on cellulose and method for producing the same |
| DE102007003336A1 (en) * | 2007-01-17 | 2008-07-24 | Carl Freudenberg Kg | Method for producing a cellulose sponge cloth, cellulose sponge cloth and its use |
| CN101346416A (en) * | 2005-12-23 | 2009-01-14 | 巴斯夫欧洲公司 | Solvent system based on molten ionic liquids, its production and use for producing regenerated carbohydrates |
-
2010
- 2010-04-02 CN CN 201010140264 patent/CN101792538A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1147271C (en) * | 1997-12-03 | 2004-04-28 | 卡尔纳罗两合公司 | Sponge towel based on cellulose and method for producing the same |
| CN101346416A (en) * | 2005-12-23 | 2009-01-14 | 巴斯夫欧洲公司 | Solvent system based on molten ionic liquids, its production and use for producing regenerated carbohydrates |
| DE102007003336A1 (en) * | 2007-01-17 | 2008-07-24 | Carl Freudenberg Kg | Method for producing a cellulose sponge cloth, cellulose sponge cloth and its use |
Non-Patent Citations (2)
| Title |
|---|
| 《中国优秀博硕士学位论文全文数据库（硕士） 工程科技I辑》 20040315 李翠珍 纤维素海绵的制备及性能研究 第2-4，27-36页 1-7 , 第1期 2 * |
| 《绿色溶剂--离子液体的合成与应用》 20040331 李汝雄 绿色溶剂--离子液体的合成与应用 化学工业出版社 第298-300页 7 , 1 * |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102011122560B4 (en) | 2011-12-29 | 2022-09-08 | Technikum Laubholz GmbH (TLH) | Textile-reinforced molding, a process for its production and its use |
| CN102828283A (en) * | 2012-09-10 | 2012-12-19 | 东华大学 | Method for preparing chitosan and cellulose complex fibers by binary solvent system |
| WO2014201479A1 (en) | 2013-06-19 | 2014-12-24 | Lenzing Ag | New environmentally friendly method for producing sponges and sponge cloths from polysaccharides |
| WO2014201480A1 (en) | 2013-06-19 | 2014-12-24 | Lenzing Ag | New environmentally friendly method for producing sponges and sponge cloths from polysaccharides |
| CN104927081A (en) * | 2015-06-11 | 2015-09-23 | 宁波尼可海绵科技有限公司 | Foaming device and foaming method for degradable cellulose sponge product |
| CN105176120B (en) * | 2015-07-27 | 2017-11-14 | 江苏科技大学 | A kind of preparation method of anti-bacterial fibre sponge material |
| CN105176120A (en) * | 2015-07-27 | 2015-12-23 | 江苏科技大学 | Preparation method for antibacterial cellulose sponge material |
| CN106893147A (en) * | 2017-03-13 | 2017-06-27 | 山东圣泉新材料股份有限公司 | A kind of corn cob fiber element expanded material and its production and use |
| CN109679135A (en) * | 2018-12-27 | 2019-04-26 | 江南大学 | A kind of green composite foam material and preparation method thereof |
| CN109679135B (en) * | 2018-12-27 | 2020-07-07 | 江南大学 | Green composite foam material and preparation method thereof |
| CN109880131A (en) * | 2019-01-25 | 2019-06-14 | 华中科技大学 | A kind of ionic liquid plasticized fibre element clean method for preparing |
| CN109880131B (en) * | 2019-01-25 | 2020-11-17 | 华中科技大学 | Clean manufacturing method of ionic liquid plasticized cellulose |
| CN110922641A (en) * | 2019-05-09 | 2020-03-27 | 河南应用技术职业学院 | Ecological environment-friendly material and preparation method thereof |
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Open date: 20100804 |