CN110776678A - Super absorbent resin, preparation method and application thereof - Google Patents
Super absorbent resin, preparation method and application thereof Download PDFInfo
- Publication number
- CN110776678A CN110776678A CN201911071986.0A CN201911071986A CN110776678A CN 110776678 A CN110776678 A CN 110776678A CN 201911071986 A CN201911071986 A CN 201911071986A CN 110776678 A CN110776678 A CN 110776678A
- Authority
- CN
- China
- Prior art keywords
- parts
- water
- absorbent resin
- weight
- super absorbent
- 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.)
- Granted
Links
- 239000002250 absorbent Substances 0.000 title claims abstract description 147
- 239000011347 resin Substances 0.000 title claims abstract description 128
- 229920005989 resin Polymers 0.000 title claims abstract description 128
- 230000002745 absorbent Effects 0.000 title claims abstract description 89
- 238000002360 preparation method Methods 0.000 title abstract description 11
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 124
- 229920000459 Nitrile rubber Polymers 0.000 claims abstract description 32
- 239000004814 polyurethane Substances 0.000 claims abstract description 27
- 229920002635 polyurethane Polymers 0.000 claims abstract description 25
- 239000000213 tara gum Substances 0.000 claims abstract description 25
- 235000010491 tara gum Nutrition 0.000 claims abstract description 25
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002041 carbon nanotube Substances 0.000 claims abstract description 24
- 229910021393 carbon nanotube Inorganic materials 0.000 claims abstract description 24
- 238000003756 stirring Methods 0.000 claims abstract description 24
- 238000010438 heat treatment Methods 0.000 claims abstract description 16
- 239000002994 raw material Substances 0.000 claims abstract description 15
- 239000003999 initiator Substances 0.000 claims abstract description 12
- 239000003431 cross linking reagent Substances 0.000 claims abstract description 11
- 238000001816 cooling Methods 0.000 claims abstract description 10
- 238000002156 mixing Methods 0.000 claims abstract description 10
- 235000000380 Nyssa aquatica Nutrition 0.000 claims abstract description 8
- 239000004372 Polyvinyl alcohol Substances 0.000 claims description 24
- 229920002451 polyvinyl alcohol Polymers 0.000 claims description 24
- 229920002401 polyacrylamide Polymers 0.000 claims description 22
- 239000000022 bacteriostatic agent Substances 0.000 claims description 18
- USHAGKDGDHPEEY-UHFFFAOYSA-L potassium persulfate Chemical compound [K+].[K+].[O-]S(=O)(=O)OOS([O-])(=O)=O USHAGKDGDHPEEY-UHFFFAOYSA-L 0.000 claims description 17
- ROOXNKNUYICQNP-UHFFFAOYSA-N ammonium persulfate Chemical compound [NH4+].[NH4+].[O-]S(=O)(=O)OOS([O-])(=O)=O ROOXNKNUYICQNP-UHFFFAOYSA-N 0.000 claims description 14
- 239000011837 N,N-methylenebisacrylamide Substances 0.000 claims description 12
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical group C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 12
- XMNIXWIUMCBBBL-UHFFFAOYSA-N 2-(2-phenylpropan-2-ylperoxy)propan-2-ylbenzene Chemical compound C=1C=CC=CC=1C(C)(C)OOC(C)(C)C1=CC=CC=C1 XMNIXWIUMCBBBL-UHFFFAOYSA-N 0.000 claims description 7
- 229920001661 Chitosan Polymers 0.000 claims description 7
- 229910001870 ammonium persulfate Inorganic materials 0.000 claims description 7
- 150000003242 quaternary ammonium salts Chemical class 0.000 claims description 7
- 238000000034 method Methods 0.000 claims description 6
- 229920000289 Polyquaternium Polymers 0.000 claims 1
- 238000010521 absorption reaction Methods 0.000 abstract description 49
- 150000003839 salts Chemical class 0.000 abstract description 11
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 20
- 206010016807 Fluid retention Diseases 0.000 description 13
- 239000011780 sodium chloride Substances 0.000 description 10
- 239000000243 solution Substances 0.000 description 9
- 230000003385 bacteriostatic effect Effects 0.000 description 8
- 229920001495 poly(sodium acrylate) polymer Polymers 0.000 description 8
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 8
- 241000894006 Bacteria Species 0.000 description 6
- 150000003863 ammonium salts Chemical group 0.000 description 6
- 230000002829 reductive effect Effects 0.000 description 6
- 239000003242 anti bacterial agent Substances 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 5
- 230000008961 swelling Effects 0.000 description 5
- 238000012360 testing method Methods 0.000 description 5
- 239000007864 aqueous solution Substances 0.000 description 4
- 238000004132 cross linking Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 239000007788 liquid Substances 0.000 description 4
- 229920006395 saturated elastomer Polymers 0.000 description 4
- 239000006096 absorbing agent Substances 0.000 description 3
- 230000009471 action Effects 0.000 description 3
- 230000000844 anti-bacterial effect Effects 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 241000588724 Escherichia coli Species 0.000 description 2
- 241000191967 Staphylococcus aureus Species 0.000 description 2
- 150000001768 cations Chemical class 0.000 description 2
- 239000008367 deionised water Substances 0.000 description 2
- 229910021641 deionized water Inorganic materials 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 230000015784 hyperosmotic salinity response Effects 0.000 description 2
- 229920002521 macromolecule Polymers 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000011159 matrix material Substances 0.000 description 2
- 239000002609 medium Substances 0.000 description 2
- 229920000058 polyacrylate Polymers 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 229920003225 polyurethane elastomer Polymers 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000002352 surface water Substances 0.000 description 2
- 244000025254 Cannabis sativa Species 0.000 description 1
- 235000012766 Cannabis sativa ssp. sativa var. sativa Nutrition 0.000 description 1
- 235000012765 Cannabis sativa ssp. sativa var. spontanea Nutrition 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000012736 aqueous medium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 235000009120 camo Nutrition 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 235000005607 chanvre indien Nutrition 0.000 description 1
- 238000010382 chemical cross-linking Methods 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000012258 culturing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 229920001002 functional polymer Polymers 0.000 description 1
- 239000001963 growth medium Substances 0.000 description 1
- 239000011487 hemp Substances 0.000 description 1
- 239000000017 hydrogel Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000000670 limiting effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910021645 metal ion Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000006916 nutrient agar Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- -1 salt ions Chemical class 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 229920000247 superabsorbent polymer Polymers 0.000 description 1
- 210000002700 urine Anatomy 0.000 description 1
- 238000005303 weighing Methods 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
- C08L9/00—Compositions of homopolymers or copolymers of conjugated diene hydrocarbons
- C08L9/02—Copolymers with acrylonitrile
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/18—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing inorganic materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/20—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing organic materials
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/24—Macromolecular compounds obtained by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/26—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds; Derivatives thereof
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/22—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons containing macromolecular materials
- A61L15/28—Polysaccharides or their derivatives
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/46—Deodorants or malodour counteractants, e.g. to inhibit the formation of ammonia or bacteria
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/204—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials with nitrogen-containing functional groups, e.g. aminoxides, nitriles, guanidines
- A61L2300/208—Quaternary ammonium compounds
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/20—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices containing or releasing organic materials
- A61L2300/23—Carbohydrates
- A61L2300/236—Glycosaminoglycans, e.g. heparin, hyaluronic acid, chondroitin
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2300/00—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices
- A61L2300/40—Biologically active materials used in bandages, wound dressings, absorbent pads or medical devices characterised by a specific therapeutic activity or mode of action
- A61L2300/404—Biocides, antimicrobial agents, antiseptic agents
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L2400/00—Materials characterised by their function or physical properties
- A61L2400/12—Nanosized materials, e.g. nanofibres, nanoparticles, nanowires, nanotubes; Nanostructured surfaces
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08K—Use of inorganic or non-macromolecular organic substances as compounding ingredients
- C08K2201/00—Specific properties of additives
- C08K2201/011—Nanostructured additives
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08L—COMPOSITIONS OF MACROMOLECULAR COMPOUNDS
- C08L2205/00—Polymer mixtures characterised by other features
- C08L2205/03—Polymer mixtures characterised by other features containing three or more polymers in a blend
- C08L2205/035—Polymer mixtures characterised by other features containing three or more polymers in a blend containing four or more polymers in a blend
Landscapes
- Health & Medical Sciences (AREA)
- Chemical & Material Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Hematology (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Epidemiology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Organic Chemistry (AREA)
- Polymers & Plastics (AREA)
- Inorganic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Compositions Of Macromolecular Compounds (AREA)
- Solid-Sorbent Or Filter-Aiding Compositions (AREA)
Abstract
The invention discloses a high water-absorbing resin, a preparation method and application thereof, belonging to the field of water-absorbing resin, wherein the technical scheme of the high water-absorbing resin is characterized in that the raw materials comprise, by weight, 126 parts of nitrile rubber 100-126 parts, 65-85 parts of polyurethane, 12-18 parts of carbon nanotubes, 8-16 parts of tala gum, 0.7-1.2 parts of an initiator, 1.4-1.8 parts of a water absorbent, 1.1-1.4 parts of a cross-linking agent and 4-8 parts of water; the preparation method of the super absorbent resin comprises the following steps: s1: mixing water absorbent, water and tara gum in parts by weight, stirring to completely dissolve the water absorbent, and heating to 55-65 ℃; s2: adding initiator and carbon nanotube in the weight portion into S1, and stirring for 20-40 min; s3: adding the nitrile rubber, the polyurethane and the cross-linking agent in parts by weight into S2, heating to 75-85 ℃, and continuously stirring for reacting for 3 hours; s4: and cooling the product in the step S3 to room temperature to improve the salt resistance of the water-absorbent resin, thereby improving the water absorption performance of the water-absorbent resin.
Description
Technical Field
The invention relates to the field of water-absorbent resins, and particularly relates to a super-absorbent resin, a preparation method and application thereof.
Background
The super absorbent resin is a functional polymer material which contains strong hydrophilic groups and has a certain degree of crosslinking and is developed in recent years, and the previously used adsorbing materials such as paper, cotton, hemp and the like have the water absorption capacity which is 15 to 40 times of the self weight and have quite poor water retention capacity. In the middle of the 70 s, super absorbent resins appeared, which were insoluble in water and organic solvents, capable of absorbing hundreds to thousands of times their own weight of water, and had strong water retentivity, thus attracting attention of countries in the world.
The super absorbent resin is swollen immediately after swelling upon absorbing water to become hydrogel, so that the liquid is kept in a non-flowing state and is difficult to separate even when pressurized, as compared with conventional water absorbent materials, but most of the super absorbent resins are polyacrylate type, and the polyacrylate type resin has poor salt resistance, so that the water absorption rate of the water absorbent resin in the presence of salt ions such as urine is remarkably reduced, thereby limiting the practical application of the water absorbent resin.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a high water-absorbent resin, which achieves the effect of improving the salt resistance of the water-absorbent resin so as to improve the water absorption performance of the water-absorbent resin.
The first technical purpose of the invention is realized by the following technical scheme:
the high water absorption resin comprises, by weight, 126 parts of nitrile rubber 100, 65-85 parts of polyurethane, 12-18 parts of carbon nanotubes, 8-16 parts of tara gum, 0.7-1.2 parts of an initiator, 1.4-1.8 parts of a water absorbent, 1.1-1.4 parts of a cross-linking agent and 4-8 parts of water.
By adopting the technical scheme, the nitrile rubber contains-CN groups with extremely strong polarity, so that the nitrile rubber and polyurethane have good compatibility and excellent stability, and meanwhile, due to the polarity of the nitrile rubber, a rubber matrix and a hydrophilic agent can be fully compatible, and the water absorption collision performance of the water absorbent resin is improved. Polar nitrile rubber and hydrophilic polyurethane active resin macromolecules of double bond end capping are twisted with each other with the molecular main chain of nitrile rubber matrix under the action of cross-linking agent and initiator, so that the polyurethane macromolecules are chemically grafted to the molecular chain of nitrile rubber, after the water-absorbent resin and water are reacted, the medium hydrogen bond of the water-absorbent resin is continuously generated, the internal molecular structure of the water-absorbent resin is stable, therefore, the problem that partial molecules are separated out due to chain breaking is avoided, the structure is stable, in the water loss process, the hydrogen bond is continuously broken, the water molecules fall off, the water-absorbent resin basically recovers to the original shape under the action of intermolecular attraction, and the water absorption performance of the water-absorbent resin is effectively improved.
The tara gum is a natural and reproducible water-soluble high polymer material, can effectively improve the water absorption performance and the stability of the water-absorbent resin by adding the tara gum into the water-absorbent resin, and can be dissolved in hot water and cold water, so that when the tara gum is added into the water-absorbent resin, the tara gum expands after the water-absorbent resin absorbs water, thereby effectively improving the water absorption performance of the water-absorbent resin, and meanwhile, the tara gum also has good water retention performance.
The carbon nano-tube has large specific surface area, so that the carbon nano-tube has excellent adsorption performance, and the carbon nano-tube has a hollow structure, thereby effectively improving the water absorption performance of the water-absorbent resin and simultaneously effectively improving the salt resistance of the water-absorbent resin.
The invention is further set that the raw materials comprise 118 parts of nitrile rubber 108-.
The invention further provides that the initiator comprises one or more of potassium persulfate, ammonium persulfate and dicumyl peroxide.
By adopting the technical scheme, potassium persulfate, ammonium persulfate and dicumyl peroxide are used as initiators, so that the increase of active points in the cross-linking process of the nitrile rubber and the polyurethane is facilitated, the grafting rate of the nitrile rubber and the polyurethane is facilitated to be improved, and the water absorption of the water-absorbent resin is facilitated to be improved.
The invention is further configured that the water absorbent comprises polyvinyl alcohol and polyacrylamide, and the weight ratio of the polyvinyl alcohol to the polyacrylamide is 1.1-1.6: 0.9-1.5.
By adopting the technical scheme, the currently used water absorbent is mainly sodium polyacrylate which is extremely sensitive to metal ions in liquid, so that the hydrophilicity of a macromolecular chain of the sodium polyacrylate disappears, the sodium polyacrylate shrinks, and when the concentration of cations in a medium is continuously increased, the expansion ratio of the sodium polyacrylate is also reduced, so that the salt tolerance of the water absorbent resin is poor. The hydrophilic group in the polyacrylamide is a nonionic group, and is not dissociated in an aqueous medium, and the metal cations in the water cannot form chemical cross-linking bonds with the hydrophilic group to lose hydrophilicity, so that the water-swelling multiplying power is reduced, good salt resistance is shown, and the water absorption performance of the water-absorbent resin is effectively improved.
Under the action of the cross-linking agent, polyvinyl alcohol, polyurethane and nitrile rubber form a compact grid cross-linked structure, so that a polyvinyl alcohol molecular chain and a nitrile rubber molecular chain are wound and curled mutually, after the water-absorbent resin absorbs water, some groups in the cross-linked structure are dissociated out of the grid, the remaining charged groups repel each other, and a high molecular chain is fully expanded, so that the water absorption space of the water-absorbent resin is expanded, and the water absorption performance of the water-absorbent resin is improved. In addition, the polyvinyl alcohol and the polyacrylamide are used in a matching way, so that the salt resistance of the water-absorbent resin is improved, and the water absorption performance of the water-absorbent resin is effectively improved.
The invention is further configured that the cross-linking agent is N, N-methylene bisacrylamide.
The invention is further set that the raw materials also comprise 0.6 to 1.2 parts of bacteriostatic agent according to the parts by weight, and the bacteriostatic agent comprises 10 to 16 parts of chitosan quaternary ammonium salt and 6 to 12 parts of polyquaternary ammonium salt.
By adopting the technical scheme, the chitosan quaternary ammonium salt and the polyquaternary ammonium salt both have good antibacterial property, meanwhile, the chitosan quaternary ammonium salt and the polyquaternary ammonium salt are good in water solubility, and the water absorption property of the water-absorbent resin can be improved.
Object two of the present invention: provides a preparation method of a high water-absorption resin, which comprises the following steps:
s1: mixing water absorbent, water and tara gum in parts by weight, stirring to completely dissolve the water absorbent, and heating to 55-65 ℃;
s2: adding initiator and carbon nanotube in the weight portion into S1, and stirring for 20-40 min;
s3: adding the nitrile rubber, the polyurethane and the cross-linking agent in parts by weight into S2, heating to 75-85 ℃, and continuously stirring for reacting for 3 hours;
s4: and cooling the product in the S3 to room temperature to obtain the super absorbent resin.
By adopting the technical scheme, the water absorbent and the tara gum are both easy to dissolve in water, and the water absorbent and the tara gum are dissolved firstly, so that the dissolved tara gum and the water absorbent wrap the carbon nano-tube, the compatibility of the carbon nano-tube with polyurethane and nitrile rubber is improved, the carbon nano-tube is favorably and fully diffused into a cross-linked structure, the cross-linked density of the nitrile rubber and the polyurethane is increased, the increase of grid results is facilitated, and the water absorption performance of the water absorbent resin is indirectly improved.
The invention is further provided that 0.6 to 1.2 parts by weight of bacteriostatic agent is added in the step S2.
By adopting the technical scheme, the antibacterial agent is added in the step S2, so that the antibacterial agent is favorably and fully diffused, the antibacterial agent is favorably and fully diffused in the cross-linked body of the nitrile rubber and the polyurethane, and the water absorption performance and the antibacterial performance of the water absorbent resin are effectively improved.
The third purpose of the invention is that: provides the application of the super absorbent resin in the paper diaper.
In conclusion, the invention has the following beneficial effects:
1. the nitrile rubber and the polyurethane are mutually wound in the cross-linking process, so that the internal molecular structure of the water-absorbent resin is stable after water absorption, the problem of molecular chain breakage separation does not exist, the structure is stable, and meanwhile, the water-absorbent resin can expand due to the addition of the tara gum and the carbon nano-tubes, so that the water-absorbent resin has good water retention performance and salt resistance;
2. the addition of the polyvinyl alcohol and the polyacrylamide effectively improves the salt resistance of the water-absorbent resin, thereby improving the water absorption performance of the water-absorbent resin;
3. the bacteriostatic agent is added, so that the bacteriostatic performance of the water-absorbent resin can be improved, and the water absorption performance of the water-absorbent resin can be further improved.
Detailed Description
The present invention will be described in further detail with reference to examples.
Example 1
A high water absorption resin comprises the raw materials of 100 parts of nitrile rubber, 65 parts of polyurethane, 12 parts of carbon nano-tubes, 8 parts of tara gum, 0.7 part of potassium persulfate, 1.4 parts of water absorbent, 1.1 parts of N, N-methylene-bisacrylamide and 4 parts of water according to parts by weight; the water absorbent comprises polyvinyl alcohol and polyacrylamide, wherein the weight ratio of the polyvinyl alcohol to the polyacrylamide is 1.1:0.9, namely 0.77 parts of polyvinyl alcohol and 0.63 parts of polyacrylamide;
a preparation method of a high water absorption resin comprises the following steps:
s1: mixing water absorbent, water and tara gum in parts by weight, stirring to completely dissolve the water absorbent, and heating to 55 ℃;
s2: adding potassium persulfate and carbon nanotubes in parts by weight into S1, and stirring for 20 min;
s3: adding the nitrile rubber, the polyurethane and the N, N-methylene bisacrylamide in parts by weight into S2, heating to 75 ℃, and continuously stirring for reacting for 3 hours;
s4: and cooling the product in the S3 to room temperature to obtain the super absorbent resin.
Example 2
A high water absorption resin comprises the raw materials of 108 parts of nitrile rubber, 70 parts of polyurethane, 13 parts of carbon nano-tubes, 10 parts of tara gum, 0.9 part of potassium persulfate, 1.5 parts of water absorbent, 1.1 parts of N, N-methylene-bisacrylamide and 5 parts of water according to parts by weight; the water absorbent comprises polyvinyl alcohol and polyacrylamide, wherein the weight ratio of the polyvinyl alcohol to the polyacrylamide is 1.1:0.9, namely 0.83 part of polyvinyl alcohol and 0.67 part of polyacrylamide.
A preparation method of a high water absorption resin comprises the following steps:
s1: mixing water absorbent, water and tara gum in parts by weight, stirring to completely dissolve the water absorbent, and heating to 55 ℃;
s2: adding potassium persulfate and carbon nanotubes in parts by weight into S1, and stirring for 20 min;
s3: adding the nitrile rubber, the polyurethane and the N, N-methylene bisacrylamide in parts by weight into S2, heating to 75 ℃, and continuously stirring for reacting for 3 hours;
s4: and cooling the product in the S3 to room temperature to obtain the super absorbent resin.
Example 3
A high water absorption resin comprises the raw materials of, by weight, 113 parts of nitrile rubber, 75 parts of polyurethane, 15 parts of carbon nanotubes, 12 parts of tara gum, 1 part of potassium persulfate, 1.6 parts of a water absorbent, 1.2 parts of N, N-methylene-bisacrylamide and 6 parts of water; the water absorbent comprises polyvinyl alcohol and polyacrylamide, wherein the weight ratio of the polyvinyl alcohol to the polyacrylamide is 1.3:1.3, namely 0.8 part of polyvinyl alcohol and 0.8 part of polyacrylamide;
a preparation method of a high water absorption resin comprises the following steps:
s1: mixing water absorbent, water and tara gum in parts by weight, stirring to completely dissolve the water absorbent, and heating to 60 ℃;
s2: adding potassium persulfate and carbon nanotubes in parts by weight into S1, and stirring for 30 min;
s3: adding the nitrile rubber, the polyurethane and the N, N-methylene bisacrylamide in parts by weight into S2, heating to 80 ℃, and continuously stirring for reacting for 3 hours;
s4: and cooling the product in the S3 to room temperature to obtain the super absorbent resin.
Example 4
A high water absorption resin comprises raw materials including, by weight, 118 parts of nitrile rubber, 80 parts of polyurethane, 17 parts of carbon nanotubes, 14 parts of tara gum, 1.1 parts of potassium persulfate, 1.7 parts of a water absorbent, 1.3 parts of N, N-methylene-bisacrylamide and 7 parts of water; the water absorbent comprises polyvinyl alcohol and polyacrylamide, wherein the weight ratio of the polyvinyl alcohol to the polyacrylamide is 1.6:1.5, namely 0.88 part of polyvinyl alcohol and 0.82 part of polyacrylamide;
a preparation method of a high water absorption resin comprises the following steps:
s1: mixing water absorbent, water and tara gum in parts by weight, stirring to completely dissolve the water absorbent, and heating to 65 ℃;
s2: adding potassium persulfate and carbon nanotubes in parts by weight into S1, and stirring for 40 min;
s3: adding the nitrile rubber, the polyurethane and the N, N-methylene bisacrylamide in parts by weight into S2, heating to 85 ℃, and continuously stirring for reacting for 3 hours;
s4: and cooling the product in the S3 to room temperature to obtain the super absorbent resin.
Example 5
A high water absorption resin comprises raw materials, by weight, 126 parts of nitrile rubber, 85 parts of polyurethane, 18 parts of carbon nanotubes, 16 parts of tara gum, 1.2 parts of potassium persulfate, 1.8 parts of a water absorbent, 1.4 parts of N, N-methylene-bisacrylamide and 8 parts of water; the water absorbent comprises polyvinyl alcohol and polyacrylamide, wherein the weight ratio of the polyvinyl alcohol to the polyacrylamide is 1.6: 1.5; namely 0.93 part of polyvinyl alcohol and 0.87 part of polyacrylamide;
a preparation method of a high water absorption resin comprises the following steps:
s1: mixing water absorbent, water and tara gum in parts by weight, stirring to completely dissolve the water absorbent, and heating to 65 ℃;
s2: adding potassium persulfate and carbon nanotubes in parts by weight into S1, and stirring for 40 min;
s3: adding the nitrile rubber, the polyurethane and the N, N-methylene bisacrylamide in parts by weight into S2, heating to 85 ℃, and continuously stirring for reacting for 3 hours;
s4: and cooling the product in the S3 to room temperature to obtain the super absorbent resin.
Example 6
The super absorbent resin is different from the super absorbent resin in example 3 in that the raw materials further comprise 0.6 part by weight of bacteriostatic agent, and the bacteriostatic agent comprises 10 parts by weight of chitosan quaternary ammonium salt and 6 parts by weight of polyquaternary ammonium salt.
Example 7
The super absorbent resin is different from the super absorbent resin in example 3 in that the raw materials further comprise 0.9 part by weight of bacteriostatic agent, and the bacteriostatic agent comprises 13 parts by weight of chitosan quaternary ammonium salt and 9 parts by weight of polyquaternary ammonium salt.
Example 8
The super absorbent resin is different from the super absorbent resin in example 3 in that the raw materials further comprise 1.2 parts by weight of a bacteriostatic agent, and the bacteriostatic agent comprises 16 parts by weight of chitosan quaternary ammonium salt and 12 parts by weight of polyquaternary ammonium salt.
Example 9
A super absorbent resin, which is different from example 7 in that potassium persulfate is replaced with an equivalent amount of ammonium persulfate.
Example 10
A super absorbent resin, which is different from example 7 in that potassium persulfate is replaced by the same amount of dicumyl peroxide.
Example 11
Use of a water-absorbent resin in a paper diaper.
Comparative example 1
The difference from example 7 is that the sum of polyvinyl alcohol and polyacryl is replaced by the same amount of sodium polyacrylate.
Performance detection
Water-absorbent resins prepared in examples 1 to 10 and comparative example 1 were examined for water absorption, salt resistance and antibacterial property, and the results are shown in Table 1.
The water absorption performance test method comprises the following steps: 1.0g of super absorbent resin powder with the particle size of 60-80 meshes is completely immersed into 500mL of deionized water at room temperature, the water absorption and swelling are carried out for 4h so as to achieve a saturated swelling state, a resin sample in a water absorption saturated state is filtered by a 100-mesh screen until no water drops, then water on the surface of the resin is wiped off by absorbent paper, and the mass of the super absorbent resin in the saturated water absorption state at this time is weighed.
Testing the salt resistance: NaCl solution with the mass fraction of 0.8% and 1.0% is prepared, 1.0g of super absorbent resin is completely immersed into the excessive NaCl solution at room temperature, when the super absorbent resin sample reaches a swelling equilibrium state, the excessive water is filtered out by a 100-mesh screen, the surface water is sucked dry by absorbent paper, and the weight of the resin at the moment is weighed.
Crushing and tabletting 0.05g of super absorbent resin, sterilizing under an ultraviolet lamp for later use, adding 0.7-1ml of test bacterium liquid into a culture dish, pouring nutrient agar solution into the culture dish added with the bacterium liquid, shaking uniformly, standing and cooling, putting a sample into the culture dish after cooling, sealing a sealing strip, continuously culturing for 12 hours in a constant-temperature incubator at 37 ℃, and observing and measuring the size of a bacteriostatic ring generated on a culture medium, wherein the test bacterium is staphylococcus aureus and escherichia coli.
The water retention property test results are shown in table 2, after a certain mass of super absorbent resin reaches a saturated state in excessive deionized water at room temperature, filtering the swollen super absorbent resin with a 100-mesh screen and wiping off surface water with absorbent paper to remove excessive water, placing the swollen sample in a culture dish, weighing the weight of the super absorbent resin swollen sample at different moments at the same time interval until the sample is completely dehydrated and no longer undergoes weight change, and calculating the water retention rate according to the following formula: w (%) ═ W
t-W
d/W
i-W
d) X100%, wherein W
tIs the sample weight of the super absorbent resin at different times, W
dWeight of sample of dry superabsorbent
iWeight of superabsorbent polymer sample at swelling equilibrium.
TABLE 1 table of the results of the measurement of the properties of the super absorbent resin
From the above table, it can be seen that:
in examples 1 to 5, the water absorption capacity, the absorption capacity of 0.8% NaCl solution and the absorption capacity of 1.0% NaCl solution in example 3 were all superior to those in examples 1 to 2 and 4 to 5, and the absorption capacity of 0.8% NaCl solution and the absorption capacity of 1.0% NaCl solution, and it was found that the water absorption capacity of the water-absorbent resin could be effectively increased by the amounts of the respective components in example 3; meanwhile, when the mass concentration of the NaCl aqueous solution is improved, the difference between the absorption capacity of the water-absorbent resin in the 0.8 percent NaCl aqueous solution and the absorption capacity of the water-absorbent resin in the 1.0 percent NaCl aqueous solution is not much in each embodiment, which indicates that the water-absorbent resin has excellent salt resistance;
examples 6 to 8 compared with example 3, the water absorption capacity of the water-absorbent resin and the absorption capacity of the NaCl aqueous solution were both significantly improved when the antibacterial agent was added to the water-absorbent resin, indicating that the addition of the antibacterial agent can effectively improve the water absorption capacity of the water-absorbent resin and also contribute to the improvement of the salt tolerance of the water-absorbent resin;
the water-absorbent resins in examples 1-5 have the same effect of inhibiting staphylococcus aureus and escherichia coli, which indicates that the water-absorbent resins in examples 1-5 have no effect on the bacteriostatic performance of the water-absorbent resins when the mixing ratio is changed, the bacteriostatic performance of the water-absorbent resins is obviously improved after the bacteriostatic agent is added to the raw materials, and the bacteriostatic performance of the water-absorbent resins in example 7 is better than that of examples 6 and 8, which indicates that the cross-linking degree can be increased by adding the mixing ratio in example 7, so that the water-absorbent resins have good grid size, and the bacteriostatic agent in the water-absorbent resins can fully contact with bacteria after the water-absorbent resins contact with the solution, thereby achieving effective bacteriostatic performance, while the grid size in example 6 is too small, and after water absorption, the grid size is too small, the contact of the bacteriostatic agent with the bacteria in the solution is small, and the bacteriostatic performance is poor, similarly, the mesh size in example 8 is too large, the contact between the bacteriostatic agent and the bacteria is small, and the bacteriostatic performance is poor;
when potassium persulfate was replaced with the same amount of ammonium persulfate and dicumyl peroxide, respectively, the properties of the water-absorbent resin were substantially the same as those of example 7, indicating that the same results were obtained with the initiator comprising ammonium persulfate and dicumyl peroxide;
comparative example 1 compared with example 7, the performances of comparative example 1 were significantly lower than those of example 7, indicating that the water absorbing property of the water absorbent resin was significantly reduced when sodium polyacrylate was used as the water absorbing agent.
TABLE 2 table of the test results of water retention property of super absorbent resin
From the above table, it can be seen that:
the water retention percentages at the respective periods in example 3 were superior to those in examples 1-2 and examples 4-5, and it was demonstrated that the mutual cooperation between the proportions in example 3 was effective in improving the water retention percentage of the water-absorbent resin;
examples 6 to 8 compared with example 3, the water retention at each time period in examples 6 to 8 was superior to that in example 3, indicating that the addition of the bacteriostatic agent was also effective in improving the water retention of the water-absorbent resin;
the water retentions at the respective stages in examples 9 to 10 were substantially the same as those in example 7, and it was demonstrated that substantially the same effects were obtained when potassium persulfate was replaced with ammonium persulfate and dicumyl peroxide, respectively;
comparative example 1 compared with example 7, the water retention of the water-absorbent resin was significantly reduced when sodium polyacrylate was used as the water-absorbing agent, indicating that the water retention of the water-absorbent resin was significantly reduced when sodium polyacrylate was used as the water-absorbing agent in the water-absorbent resin.
The present embodiment is only for explaining the present invention, and it is not limited to the present invention, and those skilled in the art can make modifications of the present embodiment without inventive contribution as needed after reading the present specification, but all of them are protected by patent law within the scope of the claims of the present invention.
Claims (9)
1. A super absorbent resin is characterized in that: the raw materials comprise, by weight, 126 parts of nitrile rubber 100, 65-85 parts of polyurethane, 12-18 parts of carbon nanotubes, 8-16 parts of tara gum, 0.7-1.2 parts of an initiator, 1.4-1.8 parts of a water absorbent, 1.1-1.4 parts of a cross-linking agent and 4-8 parts of water.
2. The super absorbent resin according to claim 1, wherein: the raw materials comprise 118 parts of nitrile rubber 108-plus, 70-80 parts of polyurethane, 13-17 parts of carbon nano-tubes, 10-14 parts of tara gum, 0.9-1.1 parts of initiator, 1.5-1.7 parts of water absorbent, 1.1-1.3 parts of cross-linking agent and 5-7 parts of water by weight.
3. The super absorbent resin according to claim 1, wherein: the initiator comprises one or more of potassium persulfate, ammonium persulfate and dicumyl peroxide.
4. The super absorbent resin according to claim 1, wherein: the water absorbent comprises polyvinyl alcohol and polyacrylamide, and the weight ratio of the polyvinyl alcohol to the polyacrylamide is 1.1-1.6: 0.9-1.5.
5. The super absorbent resin according to claim 1, wherein: the cross-linking agent is N, N-methylene bisacrylamide.
6. The super absorbent resin according to claim 1, wherein: the raw materials also comprise 0.6 to 1.2 parts by weight of bacteriostatic agent, and the bacteriostatic agent comprises 10 to 16 parts by weight of chitosan quaternary ammonium salt and 6 to 12 parts by weight of polyquaternium.
7. The method for preparing the super absorbent resin according to claim 1, comprising the steps of:
s1: mixing water absorbent, water and tara gum in parts by weight, stirring to completely dissolve the water absorbent, and heating to 55-65 ℃;
s2: adding initiator and carbon nanotube in the weight portion into S1, and stirring for 20-40 min;
s3: adding the nitrile rubber, the polyurethane and the cross-linking agent in parts by weight into S2, heating to 75-85 ℃, and continuously stirring for reacting for 3 hours;
s4: and cooling the product in the S3 to room temperature to obtain the super absorbent resin.
8. The method for preparing a super absorbent resin according to claim 7, wherein: 0.6-1.2 parts by weight of bacteriostatic agent is added in step S2.
9. Use of the superabsorbent resin prepared according to claim 8 in paper diapers.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071986.0A CN110776678B (en) | 2019-11-05 | 2019-11-05 | Super absorbent resin, preparation method and application thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911071986.0A CN110776678B (en) | 2019-11-05 | 2019-11-05 | Super absorbent resin, preparation method and application thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110776678A true CN110776678A (en) | 2020-02-11 |
| CN110776678B CN110776678B (en) | 2021-12-28 |
Family
ID=69389230
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911071986.0A Active CN110776678B (en) | 2019-11-05 | 2019-11-05 | Super absorbent resin, preparation method and application thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110776678B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230015099A1 (en) * | 2020-04-30 | 2023-01-19 | Kimberly-Clark Worldwide, Inc. | Two phase absorbent composites |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087366A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | High-compatibility water swelling rubber and preparation method thereof |
| RU2534242C2 (en) * | 2012-12-29 | 2014-11-27 | Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации | Composite polymer material for vibration-absorbing coatings and method of their mounting |
| CN105906873A (en) * | 2016-06-23 | 2016-08-31 | 安徽荣达阀门有限公司 | Attapulgite-modified hydrophilic expansion waterproof rubber sealing material and preparation method thereof |
| CN106046453A (en) * | 2016-06-12 | 2016-10-26 | 湖北金科环保科技股份有限公司 | Water-swelling nitrile butadiene rubber and preparation process thereof |
| CN108485267A (en) * | 2018-05-09 | 2018-09-04 | 长沙小如信息科技有限公司 | A kind of diaper hydroscopic high-molecular resin and preparation method thereof |
| CN109651666A (en) * | 2018-12-24 | 2019-04-19 | 杨鹏熙 | A kind of preparation method of hydro-expansive rubber |
-
2019
- 2019-11-05 CN CN201911071986.0A patent/CN110776678B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103087366A (en) * | 2011-10-31 | 2013-05-08 | 中国石油化工股份有限公司 | High-compatibility water swelling rubber and preparation method thereof |
| RU2534242C2 (en) * | 2012-12-29 | 2014-11-27 | Российская Федерация, От Имени Которой Выступает Министерство Промышленности И Торговли Российской Федерации | Composite polymer material for vibration-absorbing coatings and method of their mounting |
| CN106046453A (en) * | 2016-06-12 | 2016-10-26 | 湖北金科环保科技股份有限公司 | Water-swelling nitrile butadiene rubber and preparation process thereof |
| CN105906873A (en) * | 2016-06-23 | 2016-08-31 | 安徽荣达阀门有限公司 | Attapulgite-modified hydrophilic expansion waterproof rubber sealing material and preparation method thereof |
| CN108485267A (en) * | 2018-05-09 | 2018-09-04 | 长沙小如信息科技有限公司 | A kind of diaper hydroscopic high-molecular resin and preparation method thereof |
| CN109651666A (en) * | 2018-12-24 | 2019-04-19 | 杨鹏熙 | A kind of preparation method of hydro-expansive rubber |
Non-Patent Citations (2)
| Title |
|---|
| 周晓燕: "高耐盐型遇水膨胀橡胶的制备及其性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
| 李冰洁: "抑菌性塔拉胶基高吸水树脂的制备与性能研究", 《中国优秀硕士学位论文全文数据库 工程科技Ⅰ辑》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230015099A1 (en) * | 2020-04-30 | 2023-01-19 | Kimberly-Clark Worldwide, Inc. | Two phase absorbent composites |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110776678B (en) | 2021-12-28 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| Peng et al. | Biocompatible cellulose-based superabsorbent hydrogels with antimicrobial activity | |
| Ma et al. | Advances in cellulose-based superabsorbent hydrogels | |
| Wittaya-areekul et al. | Development and in vitro evaluation of chitosan–polysaccharides composite wound dressings | |
| Kaith et al. | Guar gum based biodegradable, antibacterial and electrically conductive hydrogels | |
| EP1836227B1 (en) | Biodegradable, super absorbent polymer hydrogels and a method for their preparation | |
| CN110790885B (en) | Polyvinyl alcohol/chitosan quaternary ammonium salt antibacterial self-healing hydrogel and preparation method and application thereof | |
| CN110067042B (en) | Konjac glucomannan-based antibacterial hydrogel fiber and preparation method thereof | |
| JP2013544929A (en) | Gels and hydrogels | |
| CN106866998B (en) | A kind of chitosan quaternary ammonium salt/carboxymethyl cellulose superabsorbent hydrogel and its preparation method and application | |
| WO2009022358A1 (en) | Superabsorbent polymer hydro gels and a method of preparing thereof | |
| DE3031304A1 (en) | METHOD FOR PRODUCING HYDROGELS WITH HIGH WATER ABSORPTION AND LOW WATER SOLUBILITY | |
| CN113004543B (en) | Nano lignin/polyvinyl alcohol composite medical hydrogel and preparation method thereof | |
| CN112402688B (en) | Biocompatible and antibacterial rapid hemostatic nano material and preparation method thereof | |
| CN104262880B (en) | Antibacterial nano combined positively charged ion double-network hydrogel of a kind of high strength and preparation method thereof | |
| CN110776678B (en) | Super absorbent resin, preparation method and application thereof | |
| CN111481497A (en) | Hydrogel | |
| Zhang et al. | Preparation and characterization of tamarind gum/sodium alginate composite gel beads | |
| Rithe et al. | Preparation and analysis of novel hydrogels prepared from the blend of guar gum and chitosan: Cross-linked with glutaraldehyde | |
| Kong et al. | Hemicellulose-based hydrogels and their potential application | |
| Liu et al. | Facile fabrication of semi-IPN hydrogel adsorbent based on quaternary cellulose via amino-anhydride click reaction in water | |
| CN113605094A (en) | Antibacterial degradable composite fiber and preparation method thereof | |
| CN110615958A (en) | Humic acid composite gel material and preparation method thereof | |
| CN110734553A (en) | Preparation method of degradable super absorbent resins | |
| CN106983903B (en) | Wet dressing with acid-base indication function and preparation method thereof | |
| Tranquilan-Aranilla et al. | Properties and Potential Applications of Carboxymethyl-kappa-carrageenan Hydrogels Crosslinked by Gamma Radiation. |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20240605 Address after: 523000 room 103, building 2, No. 10, Yantian Junmin Road, Fenggang town, Dongguan City, Guangdong Province Patentee after: Guangdong xinrou Paper Co.,Ltd. Country or region after: China Address before: 518000 4F10, building 36, Dayun software Town, No. 8288, Longgang Avenue, he'ao community, Yuanshan street, Longgang District, Shenzhen, Guangdong Patentee before: Shenzhen Lemin Technology Co.,Ltd. Country or region before: China |