CN114015075A - Preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation - Google Patents
Preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation Download PDFInfo
- Publication number
- CN114015075A CN114015075A CN202111293589.5A CN202111293589A CN114015075A CN 114015075 A CN114015075 A CN 114015075A CN 202111293589 A CN202111293589 A CN 202111293589A CN 114015075 A CN114015075 A CN 114015075A
- Authority
- CN
- China
- Prior art keywords
- cellulose
- tough
- self
- preparation
- soaking
- 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
- 229920002678 cellulose Polymers 0.000 title claims abstract description 139
- 239000001913 cellulose Substances 0.000 title claims abstract description 139
- 239000000017 hydrogel Substances 0.000 title claims abstract description 108
- 238000001338 self-assembly Methods 0.000 title claims abstract description 78
- 238000002360 preparation method Methods 0.000 title claims abstract description 49
- 238000002791 soaking Methods 0.000 claims abstract description 110
- 239000002608 ionic liquid Substances 0.000 claims abstract description 52
- PTHCMJGKKRQCBF-UHFFFAOYSA-N Cellulose, microcrystalline Chemical compound OC1C(O)C(OC)OC(CO)C1OC1C(O)C(O)C(OC)C(CO)O1 PTHCMJGKKRQCBF-UHFFFAOYSA-N 0.000 claims abstract description 42
- HRPVXLWXLXDGHG-UHFFFAOYSA-N Acrylamide Chemical compound NC(=O)C=C HRPVXLWXLXDGHG-UHFFFAOYSA-N 0.000 claims abstract description 36
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 19
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 230000000977 initiatory effect Effects 0.000 claims abstract description 13
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 5
- 239000000243 solution Substances 0.000 claims description 68
- 239000011259 mixed solution Substances 0.000 claims description 28
- 238000002156 mixing Methods 0.000 claims description 24
- 238000001035 drying Methods 0.000 claims description 23
- -1 1-allyl-3-methylimidazole chloride salt Chemical class 0.000 claims description 22
- CSCPPACGZOOCGX-UHFFFAOYSA-N acetone Substances CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 claims description 18
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 claims description 18
- 239000000178 monomer Substances 0.000 claims description 17
- 230000001939 inductive effect Effects 0.000 claims description 14
- ZIUHHBKFKCYYJD-UHFFFAOYSA-N n,n'-methylenebisacrylamide Chemical group C=CC(=O)NCNC(=O)C=C ZIUHHBKFKCYYJD-UHFFFAOYSA-N 0.000 claims description 14
- 239000003431 cross linking reagent Substances 0.000 claims description 12
- 230000000379 polymerizing effect Effects 0.000 claims description 12
- 230000007480 spreading Effects 0.000 claims description 12
- 238000003892 spreading Methods 0.000 claims description 12
- 238000005303 weighing Methods 0.000 claims description 12
- FHDQNOXQSTVAIC-UHFFFAOYSA-M 1-butyl-3-methylimidazol-3-ium;chloride Chemical compound [Cl-].CCCCN1C=C[N+](C)=C1 FHDQNOXQSTVAIC-UHFFFAOYSA-M 0.000 claims description 11
- ZXLOSLWIGFGPIU-UHFFFAOYSA-N 1-ethyl-3-methyl-1,2-dihydroimidazol-1-ium;acetate Chemical compound CC(O)=O.CCN1CN(C)C=C1 ZXLOSLWIGFGPIU-UHFFFAOYSA-N 0.000 claims description 7
- IAZSXUOKBPGUMV-UHFFFAOYSA-N 1-butyl-3-methyl-1,2-dihydroimidazol-1-ium;chloride Chemical compound [Cl-].CCCC[NH+]1CN(C)C=C1 IAZSXUOKBPGUMV-UHFFFAOYSA-N 0.000 claims description 3
- 229920002818 (Hydroxyethyl)methacrylate Polymers 0.000 claims description 2
- OIWSIWZBQPTDKI-UHFFFAOYSA-N 1-butyl-3-methyl-2h-imidazole;hydrobromide Chemical compound [Br-].CCCC[NH+]1CN(C)C=C1 OIWSIWZBQPTDKI-UHFFFAOYSA-N 0.000 claims description 2
- JWYVGKFDLWWQJX-UHFFFAOYSA-N 1-ethenylazepan-2-one Chemical compound C=CN1CCCCCC1=O JWYVGKFDLWWQJX-UHFFFAOYSA-N 0.000 claims description 2
- WWFKDEYBOOGHKL-UHFFFAOYSA-N 1-ethyl-3-methyl-1,2-dihydroimidazol-1-ium;bromide Chemical compound Br.CCN1CN(C)C=C1 WWFKDEYBOOGHKL-UHFFFAOYSA-N 0.000 claims description 2
- XIYUIMLQTKODPS-UHFFFAOYSA-M 1-ethyl-3-methylimidazol-3-ium;acetate Chemical compound CC([O-])=O.CC[N+]=1C=CN(C)C=1 XIYUIMLQTKODPS-UHFFFAOYSA-M 0.000 claims description 2
- 239000012956 1-hydroxycyclohexylphenyl-ketone Substances 0.000 claims description 2
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 2
- OMIGHNLMNHATMP-UHFFFAOYSA-N 2-hydroxyethyl prop-2-enoate Chemical compound OCCOC(=O)C=C OMIGHNLMNHATMP-UHFFFAOYSA-N 0.000 claims description 2
- WOBHKFSMXKNTIM-UHFFFAOYSA-N Hydroxyethyl methacrylate Chemical compound CC(=C)C(=O)OCCO WOBHKFSMXKNTIM-UHFFFAOYSA-N 0.000 claims description 2
- CERQOIWHTDAKMF-UHFFFAOYSA-N Methacrylic acid Chemical compound CC(=C)C(O)=O CERQOIWHTDAKMF-UHFFFAOYSA-N 0.000 claims description 2
- 239000002202 Polyethylene glycol Substances 0.000 claims description 2
- MQDJYUACMFCOFT-UHFFFAOYSA-N bis[2-(1-hydroxycyclohexyl)phenyl]methanone Chemical compound C=1C=CC=C(C(=O)C=2C(=CC=CC=2)C2(O)CCCCC2)C=1C1(O)CCCCC1 MQDJYUACMFCOFT-UHFFFAOYSA-N 0.000 claims description 2
- 125000004386 diacrylate group Chemical group 0.000 claims description 2
- VFHVQBAGLAREND-UHFFFAOYSA-N diphenylphosphoryl-(2,4,6-trimethylphenyl)methanone Chemical compound CC1=CC(C)=CC(C)=C1C(=O)P(=O)(C=1C=CC=CC=1)C1=CC=CC=C1 VFHVQBAGLAREND-UHFFFAOYSA-N 0.000 claims description 2
- FQPSGWSUVKBHSU-UHFFFAOYSA-N methacrylamide Chemical compound CC(=C)C(N)=O FQPSGWSUVKBHSU-UHFFFAOYSA-N 0.000 claims description 2
- QNILTEGFHQSKFF-UHFFFAOYSA-N n-propan-2-ylprop-2-enamide Chemical compound CC(C)NC(=O)C=C QNILTEGFHQSKFF-UHFFFAOYSA-N 0.000 claims description 2
- 229920001223 polyethylene glycol Polymers 0.000 claims description 2
- 230000007613 environmental effect Effects 0.000 claims 2
- GJKGAPPUXSSCFI-UHFFFAOYSA-N 2-Hydroxy-4'-(2-hydroxyethoxy)-2-methylpropiophenone Chemical group CC(C)(O)C(=O)C1=CC=C(OCCO)C=C1 GJKGAPPUXSSCFI-UHFFFAOYSA-N 0.000 claims 1
- 230000009471 action Effects 0.000 abstract description 3
- 229920000875 Dissolving pulp Polymers 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 abstract 1
- 238000003756 stirring Methods 0.000 description 10
- NJMWOUFKYKNWDW-UHFFFAOYSA-N 1-ethyl-3-methylimidazolium Chemical compound CCN1C=C[N+](C)=C1 NJMWOUFKYKNWDW-UHFFFAOYSA-N 0.000 description 5
- 239000000203 mixture Substances 0.000 description 5
- 238000002834 transmittance Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- 238000004132 cross linking Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002904 solvent Substances 0.000 description 2
- LFTLOKWAGJYHHR-UHFFFAOYSA-N N-methylmorpholine N-oxide Chemical compound CN1(=O)CCOCC1 LFTLOKWAGJYHHR-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 150000001450 anions Chemical class 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 150000004676 glycans Chemical class 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 239000004627 regenerated cellulose Substances 0.000 description 1
- 230000001172 regenerating effect Effects 0.000 description 1
- 230000003938 response to stress Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000001878 scanning electron micrograph Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- WTHDKMILWLGDKL-UHFFFAOYSA-N urea;hydrate Chemical compound O.NC(N)=O WTHDKMILWLGDKL-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/02—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques
- C08J3/03—Making solutions, dispersions, lattices or gels by other methods than by solution, emulsion or suspension polymerisation techniques in aqueous media
- C08J3/075—Macromolecular gels
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F220/00—Copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride ester, amide, imide or nitrile thereof
- C08F220/02—Monocarboxylic acids having less than ten carbon atoms; Derivatives thereof
- C08F220/52—Amides or imides
- C08F220/54—Amides, e.g. N,N-dimethylacrylamide or N-isopropylacrylamide
- C08F220/56—Acrylamide; Methacrylamide
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2301/00—Characterised by the use of cellulose, modified cellulose or cellulose derivatives
- C08J2301/02—Cellulose; Modified cellulose
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
- C08J2333/24—Homopolymers or copolymers of amides or imides
- C08J2333/26—Homopolymers or copolymers of acrylamide or methacrylamide
-
- 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
- C08K5/00—Use of organic ingredients
- C08K5/16—Nitrogen-containing compounds
- C08K5/34—Heterocyclic compounds having nitrogen in the ring
- C08K5/3442—Heterocyclic compounds having nitrogen in the ring having two nitrogen atoms in the ring
- C08K5/3445—Five-membered rings
Landscapes
- Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Medicinal Chemistry (AREA)
- Polymers & Plastics (AREA)
- Organic Chemistry (AREA)
- Dispersion Chemistry (AREA)
- Addition Polymer Or Copolymer, Post-Treatments, Or Chemical Modifications (AREA)
- Graft Or Block Polymers (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Abstract
The invention discloses a preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control, and belongs to the technical field of hydrogel preparation. Dissolving cellulose in ionic liquid, and heating and dissolving to obtain a cellulose-ionic liquid solution; carrying out water-induced self-assembly on the cellulose solution to obtain cellulose gel; and soaking the cellulose gel in an acrylamide solution containing a photoinitiator for treatment, and then initiating polymerization by ultraviolet irradiation to obtain the tough and transparent hydrogel. According to the invention, the self-assembly action of the water-induced cellulose is adopted, so that the mechanical property of the hydrogel can be regulated, the problem that the strength, the stretching and the toughness cannot be considered in the traditional hydrogel reinforcing and toughening strategy is solved, and the hydrogel has good mechanical property and conductivity due to the existence of the ionic liquid in the system, and is expected to be used in the fields of flexible wearable equipment and the like.
Description
Technical Field
The invention belongs to the technical field of hydrogel preparation, and particularly relates to a preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control.
Background
The hydrogel is a material containing water and having a three-dimensional cross-linked network, has the characteristics of softness and humidity, and has wide application prospects in various fields of biomedicine, water treatment, wearable electronic equipment and the like. However, the homogeneous structure of the hydrogels makes them deficient in crosslinking on the one hand and low solids content due to high water content on the other hand, which limits their range of application to a certain extent.
Currently, there are many methods for designing hydrogels to improve their strength and toughness, such as designing double networks, designing physical-chemical hybrid cross-linking, introducing sliding cross-linking agents, designing highly oriented hierarchical structures, and introducing strong/weak fibers to construct composite networks. However, the improvement of mechanical properties by the above method is limited. In addition, increasing the strength of the hydrogel tends to sacrifice its toughness and vice versa. Therefore, it is a challenge to compromise the strength, strain and toughness of hydrogels.
As the most abundant natural polysaccharide on the earth, cellulose is widely applied to the fields of preparation of biocompatible and biodegradable materials and the like. With the sequential development and application of a series of cellulose solvents including ionic liquids, alkali/urea water systems, and N-methylmorpholine-N-oxide, the construction of hydrogels based on cellulose is also a major research focus. The preparation of cellulose hydrogels with different structures and properties by first dissolving cellulose with a solvent and then regenerating it with ethanol or water is currently a widely used strategy. However, hydrogels prepared from regenerated cellulose tend to have poor light transmittance, which limits their applications in wearable devices and the like to some extent.
Disclosure of Invention
Aiming at the problems in the prior art, the technical problem to be solved by the invention is to provide a preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control, the method can regulate and control the mechanical property of the hydrogel by inducing the self-assembly action of cellulose through water, not only solves the problem that the strength, the tensile property and the toughness cannot be considered at the same time in the traditional hydrogel reinforcing and toughening strategy, but also enables the hydrogel to have good mechanical property and conductivity due to the existence of ionic liquid in the system, and is expected to be used in the fields of flexible wearable equipment and the like.
In order to solve the problems, the technical scheme adopted by the invention is as follows:
a preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the dried cellulose obtained in the step 1) with ionic liquid, and heating and dissolving to obtain a cellulose-ionic liquid mixed solution;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, and performing moisture-induced cellulose self-assembly in an environment with certain humidity to obtain cellulose gel;
4) mixing a monomer, a cross-linking agent and a photoinitiator, and fully dissolving to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution prepared in the step 4);
6) and after soaking, weighing the soaking solution, and polymerizing under ultraviolet initiation to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the ionic liquid is any one of 1-butyl-3-methylimidazole chloride salt, 1-butyl-3-methylimidazole bromide salt, 1-ethyl-3-methylimidazole bromide salt, 1-allyl-3-methylimidazole chloride salt or 1-ethyl-3-methylimidazole acetate, and the ionic liquid is a salt consisting of anions and cations; the temperature for heating and dissolving is 60-150 ℃, and the dissolving time is 6-72 h; the mass fraction of the cellulose in the cellulose-ionic liquid mixed solution is 0.5 wt% -15 wt%.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the ionic liquid is 1-butyl-3-methylimidazolium chloride or 1-ethyl-3-methylimidazolium acetate; the temperature for heating and dissolving the cellulose is 80-110 ℃, and the dissolving time is 24-60 h; the mass fraction of the cellulose in the cellulose-ionic liquid mixed solution is 2.5 wt% -10 wt%.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control, the moisture-induced environment humidity is 5-95% RH, and the induced self-assembly time is 2-48 h.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the moisture-induced environment humidity is 50-90% RH; the time for inducing cellulose self-assembly by water is 6-24 h.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the monomer is any one of acrylic acid, acrylamide, methacrylic acid, methacrylamide, N-dimethylacrylamide, N-isopropylacrylamide, N-vinylcaprolactam, hydroxyethyl acrylate or hydroxyethyl methacrylate, and the monomers can form a polymer network; the cross-linking agent is N, N' -methylene bisacrylamide or polyethylene glycol diacrylate, and the cross-linking agent is a molecule capable of being cross-linked to form a network structure; the photoinitiator is any one of 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone, diphenyl (2,4, 6-trimethylbenzoyl) phosphine oxide or 1-hydroxycyclohexyl phenyl ketone, and the photoinitiator can release molecules of free radicals.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the monomer is acrylamide, the cross-linking agent is N, N' -methylene bisacrylamide, and the photoinitiator is 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the concentration of the monomer is 2.8-11.2 mol/L, the addition amount of the cross-linking agent is 0.07-1.12 wt% of the mass of the monomer, and the addition amount of the photoinitiator is 0.15-2.7 wt% of the mass of the monomer.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the concentration of the monomer is 5.6-8.4 mol/L, and the addition amounts of the cross-linking agent and the photoinitiator are 0.14 wt/% -0.84 wt/% and 0.45 wt/% -1.35 wt% of the monomer respectively.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the mass ratio of the soaking solution to the cellulose gel is 0.5: 1-5: 1, and the soaking time is 6-48 h.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the mass ratio of the soak solution to the cellulose gel is 1.5: 1-4.5: 1; the soaking time is 24-48 h.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the mass ratio of the soaking solution to the soaking solution for soaking is 4.8: 100-47.7: 100.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the mass ratio of the soaking solution to the soaking solution for soaking is 14.3: 100-42.9: 100.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control, the ultraviolet light power is 6-48W, and the polymerization time initiated by ultraviolet light is 0.5-2 h.
According to the preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation, the ultraviolet light power is 36W; the polymerization time initiated by the ultraviolet light is 1-2 h.
Has the advantages that: compared with the prior art, the invention has the advantages that:
(1) according to the invention, the self-assembly action of the cellulose is induced by moisture to form a cellulose framework, so that the strength is provided for the hydrogel.
(2) The invention can regulate and control the mechanical property of the hydrogel by inducing the self-assembly behavior of the cellulose through moisture.
(3) According to the invention, acrylamide is used as an elastic matrix and forms strong hydrogen bond connection with a cellulose skeleton, so that flexibility is provided for hydrogel.
(4) The existence of the ionic liquid in the system can improve the mechanical property and the transparency of the hydrogel and also provide the conductivity for the hydrogel.
(5) Compared with the common hydrogel, the hydrogel disclosed by the invention has the advantages of high strength, high toughness and good stretchability.
(6) The hydrogel disclosed by the invention has good mechanical properties and transparency, and is expected to be used in the fields of wearable electronic equipment and the like.
Drawings
FIG. 1 is an XRD pattern of cellulose and cellulose gel of example 1;
FIG. 2 is an SEM photograph of the hydrogel obtained in example 1;
FIG. 3 is a stress response curve of the hydrogel obtained in example 1;
FIG. 4 is the electrical conductivity of the hydrogel obtained in example 1;
FIG. 5 is a light transmittance curve of the hydrogel obtained in example 1;
FIG. 6 is a stress-strain curve of 300 cycles of extension at 150% strain for the hydrogel obtained in example 1.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with examples are described in detail below.
Example 1
A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the cellulose dried in the step 1) with 1-butyl-3-methyl-imidazolium chloride ([ BMIm ] Cl) ionic liquid, heating to 110 ℃, and dissolving for 36 hours to obtain a cellulose-ionic liquid mixed solution with the cellulose mass fraction of 7.5 wt%;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, then placing the culture dish in an environment of 90% RH for 12h, and obtaining cellulose gel by inducing cellulose self-assembly through water vapor;
4) mixing 8.4mol/L acrylamide, N' -methylene bisacrylamide with the mass fraction of the acrylamide being 0.28 wt% and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone with the mass fraction of the acrylamide being 0.90 wt%, and stirring to fully dissolve the acrylamide and the 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution in the step 4) for 36 hours, wherein the mass ratio of the soaking solution to the cellulose gel is 1.5: 1;
6) and after soaking, weighing the mass ratio of the soaking solution to the soaking solution for soaking to be 14.3:100, and polymerizing for 1h under the initiation of ultraviolet light with the power of 36W to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation and control.
Fig. 1 is an XRD chart of cellulose and cellulose gel, and it can be seen from fig. 1 that after cellulose is dissolved in ionic liquid, its crystal structure changes from cellulose type i to cellulose type ii. FIG. 2 is an SEM image of a hydrogel, and it can be seen from FIG. 1 that the hydrogel is dense in microstructure. Fig. 3 is a stress-strain curve of the hydrogel, and it can be seen from fig. 3 that the hydrogel has good mechanical properties, the tensile strain of the hydrogel can reach 1291%, and the tensile strength of the hydrogel can reach 2.3 MPa. FIG. 4 shows the electrical conductivity of the hydrogel, and it can be seen from FIG. 4 that the hydrogel has good electrical conductivity, and the electrical conductivity is 1.58S/m. FIG. 5 is a light transmittance curve of the hydrogel, and it can be seen from FIG. 5 that the hydrogel has good transparency and the light transmittance at 600nm is 86%. Fig. 6 is a stress-strain curve of 300 cycles of stretching of the hydrogel at 150% strain, and it can be seen from fig. 6 that the hydrogel has good cyclic stability, and the strain remains substantially stable after 300 cycles of stretching at 150% strain.
Example 2
A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the cellulose dried in the step 1) with 1-butyl-3-methyl-imidazolium chloride ([ BMIm ] Cl) ionic liquid, heating to 80 ℃ to dissolve for 24 hours to obtain a cellulose-ionic liquid mixed solution with the cellulose mass fraction of 2.5 wt%;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, then placing the culture dish in an environment with 50% RH for 12h, and obtaining cellulose gel by inducing cellulose self-assembly through water vapor;
4) mixing 8.4mol/L acrylamide, N' -methylene bisacrylamide with the mass fraction of the acrylamide being 0.28 wt% and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone with the mass fraction of the acrylamide being 0.90 wt%, and stirring to fully dissolve the acrylamide and the 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution in the step 4) for 36 hours, wherein the mass ratio of the soaking solution to the cellulose gel is 3: 1;
6) and after soaking, weighing the mass ratio of the soaking solution to the soaking solution for soaking to be 28.6:100, and polymerizing for 2 hours under the ultraviolet light initiation with the power of 6W to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation and control.
The tensile stress of the hydrogel was 0.3MPa, and the tensile strain was 1100%.
Example 3
A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the cellulose dried in the step 1) with 1-ethyl-3-methylimidazole acetate ([ Emim ] [ OAc ]) ionic liquid, heating to 110 ℃, and dissolving for 24 hours to obtain a cellulose-ionic liquid mixed solution with the cellulose mass fraction of 2.5 wt%;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, then placing the culture dish in an environment with 50% RH for reacting for 6h, and obtaining cellulose gel by inducing cellulose self-assembly through water vapor;
4) mixing 8.4mol/L acrylamide, N' -methylene bisacrylamide with the mass fraction of the acrylamide being 0.84 wt% and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone with the mass fraction of 1.35 wt%, and stirring to fully dissolve the mixture to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution in the step 4) for 36 hours, wherein the mass ratio of the soaking solution to the cellulose gel is 4.5: 1;
6) and after soaking, weighing the mass ratio of the soaking solution to the soaking solution for soaking to be 42.9:100, and polymerizing for 1h under the ultraviolet light initiation with the power of 24W to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation and control.
The tensile stress of the hydrogel was 1.6MPa, and the tensile strain was 480%.
Example 4
A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the cellulose dried in the step 1) with 1-butyl-3-methyl-imidazolium chloride ([ BMIm ] Cl) ionic liquid, heating to 110 ℃, and dissolving for 24 hours to obtain a cellulose-ionic liquid mixed solution with the cellulose mass fraction of 2.5 wt%;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, then placing the culture dish in an environment with 50% RH for 48h, and obtaining cellulose gel by inducing cellulose self-assembly through water vapor;
4) mixing 8.4mol/L acrylamide, N' -methylene bisacrylamide with the mass fraction of the acrylamide being 0.14 wt% and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone with the mass fraction of the acrylamide being 0.45 wt%, and stirring to fully dissolve the acrylamide and the 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution in the step 4) for 36 hours, wherein the mass ratio of the soaking solution to the cellulose gel is 1.5: 1;
6) and after soaking, weighing the mass ratio of the soaking solution to the soaking solution for soaking to be 14.3:100, and polymerizing for 1h under the initiation of ultraviolet light with the power of 36W to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation and control.
The tensile stress of the hydrogel was 1.5MPa, and the tensile strain was 980%.
Example 5
A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the cellulose dried in the step 1) with 1-ethyl-3-methylimidazole acetate ([ Emim ] [ OAc ]) ionic liquid, heating to 100 ℃ and dissolving for 48 hours to obtain a cellulose-ionic liquid mixed solution with the cellulose mass fraction of 10 wt%;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, then placing the culture dish in an environment with 70% RH for 12h, and obtaining cellulose gel by inducing cellulose self-assembly through water vapor;
4) mixing 5.6mol/L acrylamide, N' -methylene bisacrylamide with the mass fraction of the acrylamide being 0.28 wt% and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone with the mass fraction of the acrylamide being 0.90 wt%, and stirring to fully dissolve the acrylamide and the 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution in the step 4) for 48 hours, wherein the mass ratio of the soaking solution to the cellulose gel is 3: 1;
6) and after soaking, weighing the mass ratio of the soaking solution to the soaking solution for soaking to be 28.6:100, and polymerizing for 1h under the ultraviolet light initiation with the power of 48W to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation and control.
The tensile stress of the hydrogel was 0.7MPa, and the tensile strain was 500%.
Example 6
A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the dried cellulose obtained in the step 1) with 1-butyl-3-methyl-imidazole chloride salt ([ BMIm ] Cl) ionic liquid, heating to 100 ℃, and dissolving for 60 hours to obtain a cellulose-ionic liquid mixed solution with the cellulose mass fraction of 7.5 wt%;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, then placing the culture dish in an environment with 50% RH for 12h, and obtaining cellulose gel by inducing cellulose self-assembly through water vapor;
4) mixing 5.6mol/L acrylamide, N' -methylene bisacrylamide with the mass fraction of the acrylamide being 0.84 wt% and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone with the mass fraction of 1.35 wt%, and stirring to fully dissolve the mixture to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution in the step 4) for 24 hours, wherein the mass ratio of the soaking solution to the cellulose gel is 3: 1;
6) and after soaking, weighing the mass ratio of the soaking solution to the soaking solution for soaking to be 28.6:100, and polymerizing for 2 hours under the ultraviolet light initiation with the power of 6W to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation and control.
The tensile stress of the hydrogel was 0.1MPa, and the tensile strain was 937%.
Example 7
A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the cellulose dried in the step 1) with 1-butyl-3-methyl-imidazolium chloride ([ BMIm ] Cl) ionic liquid, heating to 100 ℃, and dissolving for 36 hours to obtain a cellulose-ionic liquid mixed solution with the cellulose mass fraction of 5 wt%;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, then placing the culture dish in an environment with 70% RH for 12h, and obtaining cellulose gel by inducing cellulose self-assembly through water vapor;
4) mixing 5.6mol/L acrylamide, N' -methylene bisacrylamide with the mass fraction of the acrylamide being 0.42 wt% and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone with the mass fraction of 1.575 wt%, and stirring to fully dissolve the mixture to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution in the step 4) for 24 hours, wherein the mass ratio of the soaking solution to the cellulose gel is 4.5: 1;
6) and after soaking, weighing the mass ratio of the soaking solution to the soaking solution for soaking to be 42.9:100, and polymerizing for 1.5h under the ultraviolet light initiation with the power of 24W to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation and control.
The tensile stress of the hydrogel was 0.9MPa, and the tensile strain was 750%.
Example 8
A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) the cellulose was dried in an air-blast drying oven to remove moisture, and dried cellulose was obtained for use.
2) Mixing the dried cellulose obtained in the step 1) with 1-ethyl-3-methylimidazole acetate ([ Emim ] [ OAc ]) ionic liquid, heating to 90 ℃ and dissolving for 24 hours to obtain a cellulose-ionic liquid mixed solution with the cellulose mass fraction of 10 wt%;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, then placing the culture dish in an environment with 70% RH for 6h, and obtaining cellulose gel by inducing cellulose self-assembly through water vapor;
4) mixing 8.4mol/L acrylamide, N' -methylene bisacrylamide with the mass fraction of the acrylamide being 0.14 wt% and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone with the mass fraction of the acrylamide being 0.45 wt%, and stirring to fully dissolve the acrylamide and the 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution in the step 4) for 24 hours, wherein the mass ratio of the soaking solution to the cellulose gel is 1.5: 1;
6) and after soaking, weighing the mass ratio of the soaking solution to the soaking solution for soaking to be 14.3:100, and polymerizing for 1.5 hours under the initiation of ultraviolet light with the power of 36W to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation and control.
The tensile stress of the hydrogel was 1.6MPa, and the tensile strain was 780%.
Example 9
A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the cellulose dried in the step 1) with 1-ethyl-3-methylimidazole acetate ([ Emim ] [ OAc ]) ionic liquid, heating to 90 ℃ and dissolving for 48 hours to obtain a cellulose-ionic liquid mixed solution with the cellulose mass fraction of 5 wt%;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, then placing the culture dish in an environment of 90% RH for 24h, and obtaining cellulose gel by inducing cellulose self-assembly through water vapor;
4) mixing 5.6mol/L acrylamide, N' -methylene bisacrylamide with the mass fraction of the acrylamide being 0.42 wt% and 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone with the mass fraction of 1.35 wt%, and stirring to fully dissolve the mixture to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution in the step 4) for 24 hours, wherein the mass ratio of the soaking solution to the cellulose gel is 3: 1;
6) and after soaking, weighing the mass ratio of the soaking solution to the soaking solution for soaking to be 28.6:100, and polymerizing for 1.5 hours under the ultraviolet light initiation with the power of 48W to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation and control.
The tensile stress of the hydrogel was 1.2MPa, and the tensile strain was 800%.
Example 10
A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation and control specifically comprises the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the cellulose dried in the step 1) with 1-ethyl-3-methylimidazole acetate ([ Emim ] [ OAc ]) ionic liquid, heating to 80 ℃ and dissolving for 36 hours to obtain a cellulose-ionic liquid mixed solution with the cellulose mass fraction of 2.5 wt%;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, then placing the culture dish in an environment with 70% RH for 6h, and obtaining cellulose gel by inducing cellulose self-assembly through water vapor;
4) mixing 8.4mol/L acrylamide, N' -methylene bisacrylamide with the mass fraction of the acrylamide being 0.14 wt% and 1.575 wt% of 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone, and stirring to fully dissolve the mixture to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution in the step 4) for 24 hours, wherein the mass ratio of the soaking solution to the cellulose gel is 4.5: 1;
6) and after soaking, weighing the mass ratio of the soaking solution to the soaking solution for soaking to be 42.9:100, and polymerizing for 2 hours under the ultraviolet light initiation with the power of 6W to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation and control.
The tensile stress of the hydrogel was 1.4MPa, and the tensile strain was 980%.
Claims (15)
1. A preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation is characterized by comprising the following steps:
1) drying the cellulose in an air-blast drying oven to remove moisture to obtain dried cellulose for later use;
2) mixing the dried cellulose obtained in the step 1) with ionic liquid, and heating and dissolving to obtain a cellulose-ionic liquid mixed solution;
3) spreading the cellulose-ionic liquid mixed solution prepared in the step 2) in a culture dish, and performing moisture-induced cellulose self-assembly in an environment with certain humidity to obtain cellulose gel;
4) mixing a monomer, a cross-linking agent and a photoinitiator, and fully dissolving to obtain a soaking solution;
5) soaking the cellulose gel prepared in the step 3) in the soaking solution prepared in the step 4);
6) and after soaking, weighing the soaking solution, and polymerizing under ultraviolet initiation to obtain the tough and transparent hydrogel based on cellulose self-assembly regulation.
2. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control of claim 1, wherein the ionic liquid is any one of 1-butyl-3-methylimidazole chloride salt, 1-butyl-3-methylimidazole bromide salt, 1-ethyl-3-methylimidazole bromide salt, 1-allyl-3-methylimidazole chloride salt or 1-ethyl-3-methylimidazole acetate; the temperature for heating and dissolving is 60-150 ℃, and the dissolving time is 6-72 h; the mass fraction of the cellulose in the cellulose-ionic liquid mixed solution is 0.5 wt% -15 wt%.
3. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control of claim 1 or 2, wherein the ionic liquid is 1-butyl-3-methylimidazolium chloride or 1-ethyl-3-methylimidazolium acetate; the temperature for heating and dissolving the cellulose is 80-110 ℃, and the dissolving time is 24-60 h; the mass fraction of the cellulose in the cellulose-ionic liquid mixed solution is 2.5 wt% -10 wt%.
4. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control as claimed in claim 1, wherein the moisture-induced environmental humidity is 5-95% RH, and the induced self-assembly time is 2-48 h.
5. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control of claim 1 or 4, wherein the moisture-induced environmental humidity is 50-90% RH; the time for inducing cellulose self-assembly by water is 6-24 h.
6. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control of claim 1, wherein the monomer is any one of acrylic acid, acrylamide, methacrylic acid, methacrylamide, N-dimethylacrylamide, N-isopropylacrylamide, N-vinylcaprolactam, hydroxyethyl acrylate or hydroxyethyl methacrylate; the cross-linking agent is N, N' -methylene bisacrylamide or polyethylene glycol diacrylate; the photoinitiator is any one of 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-acetone, diphenyl (2,4, 6-trimethylbenzoyl) phosphine oxide or 1-hydroxycyclohexyl phenyl ketone.
7. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control as claimed in claim 1 or 6, wherein the monomer is acrylamide, the crosslinking agent is N, N' -methylenebisacrylamide, and the photoinitiator is 2-hydroxy-2-methyl-1- [4- (2-hydroxyethoxy) phenyl ] -1-propanone.
8. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control as claimed in claim 1, wherein the concentration of the monomer is 2.8-11.2 mol/L, the addition amount of the cross-linking agent is 0.07 wt% -1.12 wt% of the mass of the monomer, and the addition amount of the photoinitiator is 0.15 wt% -2.7 wt% of the mass of the monomer.
9. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control as claimed in claim 1 or 8, wherein the concentration of the monomer is 5.6-8.4 mol/L, and the addition amounts of the cross-linking agent and the photoinitiator are 0.14 wt/% -0.84 wt/% and 0.45 wt/% -1.35 wt% of the monomer, respectively.
10. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control as claimed in claim 1, wherein the mass ratio of the soaking solution to the cellulose gel is 0.5: 1-5: 1, and the soaking time is 6-48 h.
11. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control of claim 1 or 10, wherein the mass ratio of the soaking solution to the cellulose gel is 1.5: 1-4.5: 1; the soaking time is 24-48 h.
12. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control as claimed in claim 1, wherein the mass ratio of the weighed soaking solution to the soaking solution for soaking is 4.8: 100-47.7: 100.
13. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control as claimed in claim 1 or 12, wherein the mass ratio of the weight of the soaking solution to the weight of the soaking solution for soaking is 14.3: 100-42.9: 100.
14. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control as claimed in claim 1, wherein the ultraviolet light power is 6-48W, and the polymerization time initiated by ultraviolet light is 0.5-2 h.
15. The preparation method of the tough and transparent hydrogel based on cellulose self-assembly regulation and control of claim 1 or 14, wherein the ultraviolet power is 36W; the polymerization time initiated by the ultraviolet light is 1-2 h.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293589.5A CN114015075B (en) | 2021-11-03 | 2021-11-03 | Preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111293589.5A CN114015075B (en) | 2021-11-03 | 2021-11-03 | Preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114015075A true CN114015075A (en) | 2022-02-08 |
| CN114015075B CN114015075B (en) | 2024-02-27 |
Family
ID=80060024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111293589.5A Active CN114015075B (en) | 2021-11-03 | 2021-11-03 | Preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114015075B (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115181299A (en) * | 2022-06-17 | 2022-10-14 | 华南理工大学 | Method for preparing high-toughness environment-friendly cellulose-based membrane in situ by using cold plasma |
| CN115850781A (en) * | 2022-12-02 | 2023-03-28 | 沈阳化工大学 | Preparation method of solution-driven efficient light-regulated alcohol gel |
| CN116606401A (en) * | 2023-07-06 | 2023-08-18 | 天津永续新材料有限公司 | Cellulose nanocrystalline ion gel temperature sensor and preparation method thereof |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112876613A (en) * | 2021-01-21 | 2021-06-01 | 沈阳化工大学 | Preparation method of high-strength light cellulose-based bionic protection material |
-
2021
- 2021-11-03 CN CN202111293589.5A patent/CN114015075B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112876613A (en) * | 2021-01-21 | 2021-06-01 | 沈阳化工大学 | Preparation method of high-strength light cellulose-based bionic protection material |
Non-Patent Citations (4)
| Title |
|---|
| HUAFENG PENG 等: "Preparations, properties, and formation mechanism of novel cellulose hydrogel membrane based on ionic liquid", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 135, no. 7, pages 45488 * |
| HUAFENG PENG 等: "The self-assembly and formation mechanism of a novel cellulose gel with chiral nematic structure", CELLULOSE, pages 5499 - 5510 * |
| 张志礼: "改性木质素基吸附材料的制备及在废水处理中的应用研究", 中国博士学位论文全文数据库 工程科技Ⅰ辑, pages 027 - 114 * |
| 行云逸 等: "菠萝果肉纤维素水凝胶的制备及对益生菌的 包埋与缓释分析", 食品科学, vol. 42, no. 1, pages 8 - 14 * |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115181299A (en) * | 2022-06-17 | 2022-10-14 | 华南理工大学 | Method for preparing high-toughness environment-friendly cellulose-based membrane in situ by using cold plasma |
| CN115181299B (en) * | 2022-06-17 | 2023-12-26 | 华南理工大学 | Method for preparing high-strength and high-toughness environment-friendly cellulose base film in situ by using cold plasma |
| CN115850781A (en) * | 2022-12-02 | 2023-03-28 | 沈阳化工大学 | Preparation method of solution-driven efficient light-regulated alcohol gel |
| CN116606401A (en) * | 2023-07-06 | 2023-08-18 | 天津永续新材料有限公司 | Cellulose nanocrystalline ion gel temperature sensor and preparation method thereof |
| CN116606401B (en) * | 2023-07-06 | 2023-09-22 | 天津永续新材料有限公司 | Cellulose nanocrystalline ion gel temperature sensor and preparation method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN114015075B (en) | 2024-02-27 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN114015075B (en) | Preparation method of tough and transparent hydrogel based on cellulose self-assembly regulation | |
| Liang et al. | Ultrastiff, tough, and healable ionic–hydrogen bond cross-linked hydrogels and their uses as building blocks to construct complex hydrogel structures | |
| CN105175755B (en) | High stretching dual network physical cross-linking hydrogel of a kind of high intensity and preparation method thereof | |
| Chen et al. | High-strength, tough, and self-healing hydrogel based on carboxymethyl cellulose | |
| CN110760152B (en) | Anti-freezing hydrogel and preparation method and application thereof | |
| CN109503768B (en) | Preparation method of high-toughness adhesive weather-resistant polyvinyl alcohol-based double-network hydrogel | |
| CN110551296B (en) | Pectin-based double-physical crosslinked hydrogel and preparation method and application thereof | |
| CN103225126B (en) | Fibroin/sodium alginate composite nanofiber scaffold preparation method | |
| CN110885476B (en) | Secondary doped graphene oxide/alkali-soluble chitosan-polyaniline-polyacrylamide composite conductive hydrogel prepared by one-pot method | |
| CN109054052A (en) | A kind of preparation method of high tenacity dual network physical crosslinking selfreparing hydrogel | |
| CN101906233A (en) | Cellulose gel/acrylic acid series polymer composition | |
| CN111662675B (en) | Mural and colored drawing cultural relic reinforcing agent with self-healing function and preparation method thereof | |
| CN102964528B (en) | Novel high-strength microgel composite hydrogel | |
| CN110423363B (en) | Preparation method and application of high-strength ultrahigh-elasticity hydrogel | |
| Wang et al. | Mechanically robust, notch-insensitive, fatigue resistant and self-recoverable hydrogels with homogeneous and viscoelastic network constructed by a novel multifunctional cross-linker | |
| Wei et al. | Nanocellulose-Strengthened Particle Gel for Conformance Control in Fractured Tight Formations. Part I: Preparation and Mechanical Stability | |
| CN112876613A (en) | Preparation method of high-strength light cellulose-based bionic protection material | |
| CN102977277B (en) | Preparation method of novel high-strength micro-gel composite hydrogel | |
| CN109593213A (en) | A kind of preparation method of high intensity hydrogel | |
| CN112521655B (en) | High-strength multi-level hydrogel and preparation method and application thereof | |
| CN103145916B (en) | Preparation method of POSS (Polyhedral Oligomeric Silsesquioxane) hybrid hydrogel capable of being degraded in acid and responding to temperature | |
| Xiong et al. | An anisotropic conductive hydrogel for strain sensing and breath detection | |
| CN114891157B (en) | Rapid adhesion wood-based gel and preparation method and application thereof | |
| CN114702697A (en) | Hemicellulose-based hydrogel based on eutectic solvent and preparation method and application thereof | |
| DE102007032403A1 (en) | Use of a swellable polymer for sealing |
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 |