CN107513877A - A kind of preparation method of succinic anhydride modified fiber air filter paper - Google Patents
A kind of preparation method of succinic anhydride modified fiber air filter paper Download PDFInfo
- Publication number
- CN107513877A CN107513877A CN201710566797.5A CN201710566797A CN107513877A CN 107513877 A CN107513877 A CN 107513877A CN 201710566797 A CN201710566797 A CN 201710566797A CN 107513877 A CN107513877 A CN 107513877A
- Authority
- CN
- China
- Prior art keywords
- weight
- parts
- succinic anhydride
- fiber
- air filter
- 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.)
- Pending
Links
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
- 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
- D21C9/002—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives
- D21C9/005—Modification of pulp properties by chemical means; preparation of dewatered pulp, e.g. in sheet or bulk form, containing special additives organic compounds
-
- D—TEXTILES; PAPER
- D21—PAPER-MAKING; PRODUCTION OF CELLULOSE
- D21F—PAPER-MAKING MACHINES; METHODS OF PRODUCING PAPER THEREON
- D21F11/00—Processes for making continuous lengths of paper, or of cardboard, or of wet web for fibre board production, on paper-making machines
- D21F11/14—Making cellulose wadding, filter or blotting paper
-
- 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
- D21H11/20—Chemically or biochemically modified fibres
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/03—Non-macromolecular organic compounds
- D21H17/05—Non-macromolecular organic compounds containing elements other than carbon and hydrogen only
- D21H17/06—Alcohols; Phenols; Ethers; Aldehydes; Ketones; Acetals; Ketals
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/34—Synthetic macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/36—Polyalkenyalcohols; Polyalkenylethers; Polyalkenylesters
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/20—Macromolecular organic compounds
- D21H17/33—Synthetic macromolecular compounds
- D21H17/46—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
- D21H17/54—Synthetic macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds obtained by reactions forming in the main chain of the macromolecule a linkage containing nitrogen
- D21H17/56—Polyamines; Polyimines; Polyester-imides
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/64—Alkaline compounds
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/66—Salts, e.g. alums
-
- 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
- D21H17/00—Non-fibrous material added to the pulp, characterised by its constitution; Paper-impregnating material characterised by its constitution
- D21H17/63—Inorganic compounds
- D21H17/67—Water-insoluble compounds, e.g. fillers, pigments
- D21H17/675—Oxides, hydroxides or carbonates
-
- 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
- D21H27/00—Special paper not otherwise provided for, e.g. made by multi-step processes
- D21H27/08—Filter paper
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Inorganic Chemistry (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Wood Science & Technology (AREA)
- Paper (AREA)
- Filtering Materials (AREA)
Abstract
The invention discloses a kind of preparation method of succinic anhydride modified fiber air filter paper, after modifying agent of the fiber by configuration is handled first, it is prepared into succinic anhydride modified fiber, then after wrapping up iron ion by electrostatic self-assembled principle fiber, heated after addition ammoniacal liquor and activated fiber, using glutaraldehyde cross-linking and assemble polyethyleneimine and polyvinyl alcohol, add in thin rice gruel and fermented afterwards, paper is copied into after slurry is made, the material prepared has stable system, its mechanism of action is simple and reliable, method is effective, and cost is low, preparation technology is simple, suction-operated is strong, with more preferable tensile strength and bursting strength, it is and renewable.
Description
Technical field
The present invention relates to filtration art, and in particular to a kind of preparation side of succinic anhydride modified fiber air filter paper
Method.
Background technology
Influence of the indoor environmental pollution caused by building, decorations, furniture to human health has serious harmfulness,
Indoor decoration can aggravate the pollution level of interior using the material containing harmful substance, and these pollute the influence to children and women
It is bigger.Leukemia children had increase trend in recent years, and it is wherein one of major reason to stay in the excessively room fitted up.
Room air pollution should cause the whole society to pay close attention to.
In air in addition to containing oxygen, hydrogen, also containing other harmful substances such as dust, sandy soil, bacterium, some special
Need, to air filtration, such as automobile engine, precision instrument workshop, laboratory, operating room, to use under environmental requirement
Air filting material, to reach the purpose of air filtering.Air filter paper is wherein conventional air filting material.
The natural polymer sorbing material such as cellulose, chitosan, because it has biological degradability, economical and effective, absorption
The features such as capacity is high and selective good, is widely applied in terms of the heavy metal and dyestuff in adsorbing waste water, because it comes
Source is extensive, cheap, it is environment-friendly the features such as, enjoy people to pay close attention in recent years, but the separation of sorbing material and treatment fluid
Less efficient is to influence the subject matter that sorbing material efficiently utilized and prevented that secondary pollution is faced.
Wang Yan exists《Polyethyleneimine-anionic cellulose adsorbing material prepares and performance study》Pass through electrostatic in one text
Self assembly is prepared for the carboxymethyl cellulose sorbing material of magnetic polyethylene imines one.Pass through electrostatic self-assembled principle carboxylic first first
Base cellulose embeds Fe3O4Particle, recycle glutaraldehyde cross-linking that polyethyleneimine assembling is got on, the sorbing material system prepared
Preparation Method is simple, and cost is low, has higher adsorption capacity to metal ion, but not possessing for particle in air is directly blocked
Cut effect.
The content of the invention
A kind of the defects of the object of the invention is exactly to make up prior art, there is provided succinic anhydride modified fiber air filtering
The preparation method of paper, preparation technology is simple, and the air filter paper of preparation has that suction-operated is strong, more preferable tensile strength and resistance to broken
Degree, and it is renewable.
The present invention is achieved by the following technical solutions：
A kind of preparation method of succinic anhydride modified fiber air filter paper, it is characterised in that comprise the following steps：
（1）0.5-1 parts by weight APES and 1-5 parts by weight succinic anhydrides are dissolved in 100-110 parts by weight
1-4 hours are stirred in absolute ethyl alcohol, then 1-5 parts by weight silane coupler is added in finely dispersed solution, continues to stir
1-2 hours, modifying agent is obtained, it is stand-by；
（2）It will be slowly added to after 30-40 percent by weight fiber impurity eliminations in modifying agent, stir 4-8 hours at 85-95 DEG C, then stop
Stirring, stewing process 12-36 hours, after ethanolic extraction backflow 8-12 hours, fiber is then taken out, carries out curing process 2-5
Hour, modified fibre is obtained, it is standby；
（3）Modified fibre is added into 50-60 parts by weight water and 5-10 parts by weight iron ion carriers, the ammonia of 25-30 parts by weight is added dropwise
Water, constant speed stirs 8-12 hours after ultrasonic disperse 20-30 minutes at room temperature, and 15-20 parts by weight are added after adjusting the pH6-7 of solution
Polyethyleneimine, after 5-10 weight account polyethylene alcohol, mixed at high speed is uniform, adds 2-5 parts by weight glutaraldehydes, constant speed stirring 8-12
It is stand-by after hour；
（4）Step（3）Resulting solution is dried in vacuo 10-12 hours, and 70-80 weight is added together with the fiber of 20-30 parts by weight
15-20 parts by weight calcium powder is added after soak 5-8 days in portion thin rice gruel by high-speed stirred into copy paper in paper machine is put into after suede, both must
A kind of succinic anhydride modified fiber air filter paper.
The temperature of described curing process is 50 DEG C -60 DEG C.
Described iron ion carrier is iron chloride, frerrous chloride, iron oxide, the one or more in ferroso-ferric oxide.
The hydrochloric acid that the pH of described regulation solution is used.
Described fiber source is the one or more in urban solid garbage, bagasse, waste paper, daily cotton fibre.
It is an advantage of the invention that：
After the present invention is first handled modifying agent of the fiber by configuration, the succinic anhydride in modifying agent destroys fiber
Internal structure, succinic anhydride modified fiber is prepared into, after then wrapping up iron ion by electrostatic self-assembled principle fiber, added
Enter to heat after ammoniacal liquor and activated fiber, using glutaraldehyde cross-linking and assemble polyethyleneimine and polyvinyl alcohol, modified fibre
The substantial amounts of activity hydroxy of fiber surface of dimension is released, and compatibility improves, and the adhesiveness on surface improves, and adds afterwards in thin rice gruel
Fermented, the protein in thin rice gruel produces chelation crosslinking with iron ion, and crosslinking, fiber are with gathering between fiber and polyethyleneimine
The collaboration effect being crosslinked between vinyl alcohol, which acts on the material for prepare, has stable system, and its mechanism of action is simple and reliable,
Method is effective, and cost is low, and preparation technology is simple, and suction-operated is strong, has more preferable tensile strength and bursting strength, and can be again
It is raw.
Embodiment
A kind of preparation method of succinic anhydride modified fiber air filter paper, it is characterised in that comprise the following steps：
（1）0.6 parts by weight APES and 3 parts by weight succinic anhydrides are dissolved in the absolute ethyl alcohol of 105 parts by weight
Middle stirring 3 hours, then adds 2 parts by weight silane couplers in finely dispersed solution, continues stirring 1.5 hours, must change
Property agent, it is stand-by；
（2）It will be slowly added to after 35 percent by weight fiber impurity eliminations in modifying agent, stirred at 90 DEG C 6 hours, then stop stirring, stood
Processing 24 hours, after being flowed back 10 hours with ethanolic extraction, fiber is then taken out, curing process 2-5 hours is carried out, fibre must be modified
Dimension, it is standby；
（3）Modified fibre is added into 55 parts by weight water and 8 parts by weight iron ion carriers, the ammoniacal liquor of 26 parts by weight is added dropwise, at room temperature
Ultrasonic disperse constant speed stirring 10 hours after 25 minutes, 16 weight account polyethylene imines, 70 weight are added after adjusting the pH6-7 of solution
After part polyvinyl alcohol, mixed at high speed is uniform, adds 3 parts by weight glutaraldehydes, stand-by after constant speed stirs 10 hours；
（4）Step（3）Resulting solution is dried in vacuo 11 hours, is added in 75 parts by weight thin rice gruels and is soaked together with the fiber of 25 parts by weight
Bubble adds 17 parts by weight calcium powders by high-speed stirred into copy paper in paper machine is put into after suede after 7 days, both a kind of butanedioic acid
Anhydride modification fiber air filter paper.
The temperature of described curing process is 55 DEG C.
Described iron ion carrier is iron chloride, frerrous chloride, iron oxide, the one or more in ferroso-ferric oxide.
The hydrochloric acid that the pH of described regulation solution is used.
Described fiber source is the one or more in urban solid garbage, bagasse, waste paper, daily cotton fibre.
Claims (5)
1. a kind of preparation method of succinic anhydride modified fiber air filter paper, it is characterised in that comprise the following steps：
（1）0.5-1 parts by weight APES and 1-5 parts by weight succinic anhydrides are dissolved in 100-110 parts by weight
1-4 hours are stirred in absolute ethyl alcohol, then 1-5 parts by weight silane coupler is added in finely dispersed solution, continues to stir
1-2 hours, modifying agent is obtained, it is stand-by；
（2）It will be slowly added to after 30-40 percent by weight fiber impurity eliminations in modifying agent, stir 4-8 hours at 85-95 DEG C, then stop
Stirring, stewing process 12-36 hours, after ethanolic extraction backflow 8-12 hours, fiber is then taken out, carries out curing process 2-5
Hour, modified fibre is obtained, it is standby；
（3）Modified fibre is added into 50-60 parts by weight water and 5-10 parts by weight iron ion carriers, the ammonia of 25-30 parts by weight is added dropwise
Water, constant speed stirs 8-12 hours after ultrasonic disperse 20-30 minutes at room temperature, and 15-20 parts by weight are added after adjusting the pH6-7 of solution
Polyethyleneimine, after 5-10 weight account polyethylene alcohol, mixed at high speed is uniform, adds 2-5 parts by weight glutaraldehydes, constant speed stirring 8-12
It is stand-by after hour；
（4）Step（3）Resulting solution is dried in vacuo 10-12 hours, and 70-80 weight is added together with the fiber of 20-30 parts by weight
15-20 parts by weight calcium powder is added after soak 5-8 days in portion thin rice gruel by high-speed stirred into copy paper in paper machine is put into after suede, both must
A kind of succinic anhydride modified fiber air filter paper.
2. according to a kind of preparation method of succinic anhydride modified fiber air filter paper of claim 1, it is characterised in that described
The temperature of curing process is 50 DEG C -60 DEG C.
3. according to a kind of preparation method of succinic anhydride modified fiber air filter paper of claim 1, it is characterised in that described
Iron ion carrier is iron chloride, frerrous chloride, iron oxide, the one or more in ferroso-ferric oxide.
4. according to a kind of preparation method of succinic anhydride modified fiber air filter paper of claim 1, it is characterised in that described
Regulation solution the hydrochloric acid that uses of pH.
5. according to a kind of preparation method of succinic anhydride modified fiber air filter paper of claim 1, it is characterised in that described
Fiber source is the one or more in urban solid garbage, bagasse, waste paper, daily cotton fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566797.5A CN107513877A (en) | 2017-07-12 | 2017-07-12 | A kind of preparation method of succinic anhydride modified fiber air filter paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710566797.5A CN107513877A (en) | 2017-07-12 | 2017-07-12 | A kind of preparation method of succinic anhydride modified fiber air filter paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107513877A true CN107513877A (en) | 2017-12-26 |
Family
ID=60722240
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710566797.5A Pending CN107513877A (en) | 2017-07-12 | 2017-07-12 | A kind of preparation method of succinic anhydride modified fiber air filter paper |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107513877A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484446A (en) * | 2013-09-29 | 2014-01-01 | 南京工业大学 | Chemical modified fiber type immobilization carrier as well as preparation method and application thereof |
| CN105457501A (en) * | 2015-12-19 | 2016-04-06 | 杭州水处理技术研究开发中心有限公司 | Preparation method of efficient gas separation membrane |
| CN105780489A (en) * | 2016-04-21 | 2016-07-20 | 安徽皖翎羽绒制品有限公司 | Waterborne polyurethane coating agent containing superfine down feather fiber-polyethyleneimine microsphere |
| CN106283828A (en) * | 2016-09-19 | 2017-01-04 | 江苏海纳空调净化设备有限公司 | A kind of antimicrobial form air filter paper and production technology thereof |
| CN106758520A (en) * | 2016-12-07 | 2017-05-31 | 昆明理工大学 | The preparation method of glutaraldehyde cross-linking polyethyleneimine paper substrate film |
-
2017
- 2017-07-12 CN CN201710566797.5A patent/CN107513877A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103484446A (en) * | 2013-09-29 | 2014-01-01 | 南京工业大学 | Chemical modified fiber type immobilization carrier as well as preparation method and application thereof |
| CN105457501A (en) * | 2015-12-19 | 2016-04-06 | 杭州水处理技术研究开发中心有限公司 | Preparation method of efficient gas separation membrane |
| CN105780489A (en) * | 2016-04-21 | 2016-07-20 | 安徽皖翎羽绒制品有限公司 | Waterborne polyurethane coating agent containing superfine down feather fiber-polyethyleneimine microsphere |
| CN106283828A (en) * | 2016-09-19 | 2017-01-04 | 江苏海纳空调净化设备有限公司 | A kind of antimicrobial form air filter paper and production technology thereof |
| CN106758520A (en) * | 2016-12-07 | 2017-05-31 | 昆明理工大学 | The preparation method of glutaraldehyde cross-linking polyethyleneimine paper substrate film |
Non-Patent Citations (1)
| Title |
|---|
| 孙晓昆: "酰基化纤维素基重金属吸附剂的制备研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106268679B (en) | A kind of preparation method of chitosan nano fiber element base composite spherical adsorbent material | |
| WO2021114441A1 (en) | Iron-rich plant-based magnetic biochar, preparation method for same, and application | |
| CN105688847B (en) | A kind of gelatin/flyash composite adsorbing material and preparation method thereof | |
| CN103723824B (en) | Carbon-iron microbattery slow-release carbon source filler and preparation method thereof | |
| CN106179249B (en) | A kind of preparation method of concave convex rod cellulose composite adsorption microballoon | |
| CN105903449B (en) | A kind of method of heavy metal in carboxylated nano-crystal fibrin magnetic particle absorption solution | |
| CN106622178B (en) | A kind of attached dose of magnetic porous cation high molecular and preparation method thereof | |
| CN110038529A (en) | A kind of preparation method of three-dimensional fiber base composite aerogel type adsorbent | |
| CN103447013A (en) | Method for preparing graphene/chitosan adsorbent and application method thereof | |
| CN101934223B (en) | Preparation method for composite crosslinked adsorbent for waste water treatment | |
| CN110330082A (en) | A kind of room temperature preparation method and applications of iron carbon particle | |
| CN101519543A (en) | Method for preparing coupling agent modified nanometer zinc oxide with reaction groups | |
| CN109529780A (en) | A kind of magnetic porous adsorbent and preparation method thereof | |
| Bayramoğlu et al. | Removal of Disperse Red 60 dye from aqueous solution using free and composite fungal biomass of Lentinus concinnus | |
| CN105903441A (en) | Method for preparing nanocrystalline cellulose magnetic particles | |
| CN104725778B (en) | A kind of polymer matrix composite and preparation method thereof | |
| CN110142030B (en) | Preparation method of efficient formaldehyde adsorption material based on activated carbon | |
| CN107754773A (en) | A kind of preparation method of epoxidation fiber manganese dioxide crossslinked sodium alginate microsphere adsorbing agent | |
| EP2531607B1 (en) | Fungal modified chitosan adhesives and wood composites made from the adhesives | |
| CN105903448A (en) | Method for preparing nanocrystalline cellulose magnetic particle adsorbent | |
| CN107513877A (en) | A kind of preparation method of succinic anhydride modified fiber air filter paper | |
| CN108620044B (en) | Magnetic response graphene oxide/plant fiber adsorption material and preparation method and application thereof | |
| CN109485872A (en) | A kind of lignin magnetic nanoparticle with pH responsiveness and preparation method thereof and the application in cellulase recycling | |
| CN109603750A (en) | One kind includes Fe3O4The preparation method of the plural gel adsorbed film of-GQDs | |
| CN105498715A (en) | Preparation method and application of nickel metal chromatography medium based on 6B agarose microspheres |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20171226 |
|
| RJ01 | Rejection of invention patent application after publication |