266 results about "Polymer gel" patented technology

The invention relates to a functional liquid metal-based temperature-responsive hydrogel material and a preparation method thereof, and belongs to the technical field of functional polymer hydrogel materials.The preparation method comprises the following steps that a temperature-responsive hydrogel composite material comprises a hydrophobic association polymer gel and a hydrogel monomer, the hydrophobic association polymer gel comprises a hydrophobic association polymer monomer, a functional filler and an initiator. The functional filler is liquid metal gallium with the edge modified by graphene oxide, and has triple functions: firstly, the functional filler is used as an electrostatic crosslinking node to form a crosslinking network with anionic ionic liquid; secondly, dynamic repair is promoted, and Ga < 3 + > is released to promote dynamic bond recombination. In addition, as a functional filler, the hydrogel is endowed with excellent photo-thermal and electro-thermal conversion performance, and the multi-stimulus response capability is enhanced. The composite material realizes structural assembly by means of hydrophobic association, shows reversible phase change and repeated self-assembly characteristics under various stimuli such as photo-thermal, electric heating, direct heating and the like, and has wide application potential.

The invention provides a preparation method of super absorbent resin, and relates to the technical field of super absorbent resin. The preparation method comprises the following steps: diluting acrylic acid with water, and adding alkali liquor for neutralization to obtain a neutralized solution; mixing an emulsifying agent, a thickening agent and foaming carbonate to obtain a foaming promoting auxiliary agent; adding a cross-linking agent, a photoinitiator and a temperature initiator into the neutralization solution to obtain a polymerization mother solution; uniformly mixing a foaming promoting auxiliary agent with the polymerization mother liquor, and initiating polymerization of the polymerization mother liquor under a UV illumination condition to obtain acrylate polymer gel; drying the acrylate polymer gel, and crushing and screening to obtain basic particles; and spraying a surface cross-linking treatment liquid on the surfaces of the basic particles, initiating a surface cross-linking reaction of the basic particles through heat treatment, and adding an inert filler after the surface cross-linking reaction to prepare the super absorbent resin finished product particles. The super absorbent resin disclosed by the invention has the characteristics of high reaction efficiency, high liquid absorption speed, good liquid passing performance, excellent reverse osmosis resistance and the like.

The invention belongs to the field of moisture absorption materials, and discloses a temperature-sensitive hydrophilic-hydrophobic reversible conversion low-temperature regenerated moisture absorption material and a preparation method and application thereof. The temperature-sensitive hydrophilic-hydrophobic reversible conversion low-temperature regenerated moisture absorption material comprises a polymer matrix and inorganic salt, the polymer matrix is a copolymer of a temperature-sensitive monomer and a hydrophilic monomer, and the inorganic salt is loaded inside and on the surface of the polymer matrix. The hygroscopic material prepared by the method has reversible transition from a hydrophilic state to a hydrophobic state near the lowest phase transition critical temperature; the material is in a hydrophilic state during moisture absorption and is in a hydrophobic state during desorption, and the material has excellent moisture absorption performance and low-temperature desorption regeneration performance; the lowest phase transition critical temperature can be adjusted according to actual requirements to adapt to different moisture absorption application scenes, the polymer gel moisture absorption material is a ternary system, the three components achieve breakthrough improvement of the moisture absorption-desorption performance through the multi-stage synergistic effect, and a new normal form is provided for environment self-adaptive material design.

The invention belongs to the technical field of lithium ion battery materials, and discloses a semi-solid electrolyte and a lithium ion battery. The semi-solid electrolyte comprises an anhydrous solvent, a lithium salt, a functional additive and a polymer gel network, the polymer gel network is obtained by carrying out polymerization reaction on the following monomers in percentage by mass: 40 to 70 percent of acrylate monomer, 30 to 50 percent of polyether monomer and 1 to 10 percent of anthraquinone modified crosslinking monomer; the anthraquinone modified crosslinking monomer has a structural formula as shown in a formula (1). The anthraquinone modified crosslinking monomer is adopted to modify a polymer gel network of the semi-solid electrolyte, so that the ionic conductivity of the semi-solid electrolyte can be remarkably improved, meanwhile, the impedance with an electrode interface can be remarkably reduced, and a lithium ion transmission path is improved. Therefore, the electrochemical performance of the semi-solid lithium ion battery is obviously improved.

The invention provides a thermal response hydrogel construction method based on solid-liquid interface repulsive force and water content, which comprises the following steps: establishing a coarse graining model of a thermal response polymer network and a water molecule system, and constructing a three-dimensional polymer gel network by adjusting the number of polymer chain monomers and the proportion of a cross-linking agent; constructing a simulation box according to the network geometric dimension and filling the simulation box with water beads; defining interaction parameters among beads under the dissipative particle dynamics model, performing molecular dynamics simulation, counting the mass center of a polymer skeleton and the number of water beads adjacent to an interface, and calculating the equilibrium moisture content; establishing a solid-liquid interface model, and calculating an equilibrium distance and interaction energy between a water bead plane and a polymer skeleton plane at the adsorption temperature; the network polymerization degree is optimized by adjusting the number of polymer chain monomers, and the optimal design of the thermal response desorption performance is achieved. The method provided by the invention is suitable for macroscopic hydrogel structure evaluation, can quickly obtain equilibrium moisture content and interfacial interaction energy, and guides reasonable proportioning and preparation of the hydrogel.

The invention relates to pre-crosslinked zwitterionic nano composite gel temporary plugging particles and a preparation method thereof, and belongs to the technical field of oilfield chemical temporary plugging. The temporary plugging particles comprise the following raw materials: sodium carboxymethyl cellulose, a nano material, a zwitterionic monomer, a cationic monomer, a temperature-resistant monomer and a composite cross-linking agent. The preparation method comprises the following steps: dissolving and stirring the sodium carboxymethyl cellulose, the nano material, the anionic monomer, the zwitterionic monomer, the temperature-resistant monomer, the acrylamide and the cross-linking agent, and heating to 70 DEG C; adding an initiator into the solution, stirring and reacting for 3 hours in a nitrogen atmosphere, and cleaning, cutting, drying and grinding the obtained polymer gel to obtain the pre-crosslinked zwitterionic nano composite gel temporary plugging particles. The temporary plugging particles prepared by the invention are relatively stable in quality after being aged for 30 days at the high temperature of 160 DEG C, and can absorb 33.21 g / g of potassium formate water with the concentration of 1.55 g / cm < 3 > within one day.

The invention belongs to the field of functional porous materials, and particularly relates to novel N, S polycyclic aromatic hydrocarbon molecules and preparation thereof, preparation of porous organic porous polymer gel constructed by using the polycyclic aromatic hydrocarbon molecules and application of the porous organic porous polymer gel in photocatalytic water oxidation to generate hydrogen peroxide. The invention provides an N, S polycyclic aromatic hydrocarbon molecule which has a structural formula as shown in a formula I. The invention provides a novel N, S polycyclic aromatic hydrocarbon molecule and a synthesis method thereof. The porous organic polymer gel is synthesized by taking the porous organic polymer as a construction unit, and the synthesized gel has excellent processability and photoelectric activity, so that the gel shows an excellent rate of preparing hydrogen peroxide through photocatalytic water oxidation when being used as a photocatalytic material.

The invention relates to the technical field of food safety detection, in particular to solid-phase extraction filler for detecting pesticide residues in food and a preparation method and application thereof.The solid-phase extraction filler comprises a magnetic filler core and a selective adsorption layer wrapping the magnetic filler core; wherein the interior of the magnetic filler core at least comprises magnetic particles and a coating layer for improving the stability of the magnetic particles; the selective adsorption layer is composed of a porous organic framework material which is chemically grafted outside the coating layer; and a temperature-sensitive polymer gel layer also covers the outer part of the selective adsorption layer. According to the solid-phase extraction filler disclosed by the invention, through an innovative hierarchical structure design, the extraction of trace pesticide residues in food can be effectively improved, the extraction difficulty is reduced, and the extraction efficiency and the extraction selectivity are improved.

The invention provides a high-strength low-molecular polymer gel system as well as a preparation method and application thereof. The polymer gel system is prepared from the following raw materials: 4 to 6 percent of polymer emulsion, 0.4 to 0.8 percent of phenolic aldehyde crosslinking agent, 0 to 0.3 percent of catalyst, 0.2 to 0.5 percent of deoxidant, 0.2 to 0.4 percent of stabilizer and the balance of water, the polymer emulsion is formed by copolymerization of an acrylamide monomer and a sodium p-styrenesulfonate monomer, and the molar weight of the sodium p-styrenesulfonate monomer accounts for 8-15% of the total amount of the monomers. According to the polymer gel plugging agent system, the low-molecular polymer with good heat resistance is selected, the dosage of the polymer is high, the viscosity of a gel forming solution is low, good injectability is achieved in the deep part of a stratum, and the polymer gel is high in gel forming strength, large in elasticity modulus after gel forming, good in stability at high temperature and capable of effectively plugging large pore channels; and the steam channeling sealing effect of the heavy oil reservoir is improved.

The invention relates to a flexible breathable zinc air battery based on a polypropylene non-woven fabric and a preparation method thereof. The preparation method comprises the following steps: carrying out hydrophilic treatment on the polypropylene non-woven fabric; immersing a hydrophilic polypropylene non-woven fabric into the carbon nanotube dispersion liquid, and drying to obtain a carbon nanotube non-woven fabric; the method comprises the following steps: coating a carbon nanotube non-woven fabric with ink containing a copper / cobalt double-atom doped oxygen electrocatalyst, and drying to obtain a breathable air cathode; the carbon nano tube non-woven fabric is electroplated and loaded with zinc, and an air-permeable galvanized anode is obtained; the preparation method comprises the following steps: immersing hydrophilic polypropylene non-woven fabric into a polymer gel solution, taking out the hydrophilic polypropylene non-woven fabric to form non-woven fabric-based polymer gel under ultraviolet irradiation, soaking the non-woven fabric-based polymer gel into a mixed solution of KOH and Zn (Ac) 2, and taking out the non-woven fabric-based polymer gel to obtain a non-woven fabric-based alkaline gel polymer electrolyte; and (3) sequentially laminating and pressing the anode, the polymer electrolyte and the cathode, and then packaging. The flexible, breathable, waterproof and tailorable characteristics of the zinc-air battery are realized.

Described herein are compositions and uses for an adaptive polymer system. Components of the polymer are used to balance smart behavior around an environmental trigger point with desirable material properties and formulation additives. The APS allows engineering of smart materials and products with desired smart behaviors and material properties on both sides of the trigger point for that behavior. When applied to solvent-based polymer gels, the APS allows for precise control of cloud point behavior and material properties that enable a range of consumer, biomedical, and industrial applications.

The invention discloses N-alkylated / sulfonated benzimidazole polyaryletherketone / polyaryletherketone sulfone with controllable grafting density as well as a preparation method and application of the N-alkylated / sulfonated benzimidazole polyaryletherketone / polyaryletherketone sulfone. The preparation method comprises the following steps: firstly, introducing a protecting group on a phenolic hydroxyl group of a bisphenol monomer containing a benzimidazole structure, then carrying out nucleophilic substitution reaction on alkyl halide / alkyl halide sulfonic acid and-NH, and then removing the protecting group to obtain an N-alkylated / sulfonated benzimidazole functionalized bisphenol monomer; copolymerizing the monomer, a bisphenol monomer and a difluoro monomer to obtain a polymer; alkyl or alkyl sulfonic acid is introduced to a benzimidazole ring, so that-NH bonds are passivated, a steric hindrance effect is formed, and gelation of the polymer under a high polymerization degree is avoided; by adjusting the molar ratio of the monomers, the retention stability of the functional groups can be effectively controlled, and compared with the traditional grafting on the polymer, the non-regulation of functionalization and the gelation of the polymer are effectively avoided.

The present invention refers to a method for producing a polymer in form of a gel or a particle, and to the resulting polymer, gel and particle, respectively. The polymer comprises a carbon donor and a metal oxide precursor, a metal oxide or a combination thereof and optionally an active agent. The invention is further directed to a composition and film comprising such polymer, and their use as a medicament for example in treating diabetes, obesity, neuronal disease, viral infection or cancer.

The invention relates to Al2O3 / C powder as well as a preparation method and application thereof, and belongs to the field of ceramic powder preparation. The invention relates to a preparation method of Al2O3 / C powder, which comprises the following steps: by taking aluminum acetate as a raw material, acrylamide as an organic monomer, N, N '-methylenebisacrylamide as a cross-linking agent and ammonium persulfate as an initiator, forming polymer gel with a three-dimensional network structure through a sol-gel method, and drying to obtain dry gel powder; and pyrolyzing the dry gel powder in nitrogen to obtain Al2O3 / C powder with a porous structure characteristic. According to the invention, acrylamide is utilized to form gel with a three-dimensional network structure, Al < 3 + > is trapped in pores of the gel structure, so that an aluminum source and a carbon source are uniformly distributed on a molecular level, and growth of Al2O3 particles is effectively inhibited by utilizing an isolation effect of C and combining a rapid heating process, so that the diffusion distance of a substance for forming AlN is greatly shortened, and the preparation process is simplified. According to the method, rapid formation of AlN is promoted, the reaction time is effectively shortened, the efficiency is improved, and the obtained pure-phase AlN powder is small in particle size.

A solid electrolyte composition comprising the following components: (i) an organic polymer comprising a polymeric backbone and pendant groups, wherein at least a portion of the pendant groups contain an anionic group associated with a first metal ion; (ii) a solvent homogeneously incorporated in the polymer to result in a polymer gel system; and (iii) a metal salt dissolved in the solvent in a molar concentration of 0.05 M to 1.5 M and containing a second metal ion associated with an anion, provided that the first and second metal ions are the same. Also described herein are solid-state batteries comprising: a) an anode; (b) a cathode; and (c) the solid electrolyte composition described above.

The present application relates to the technical field of hydrogel, in particular to an injectable temperature-responsive enhanced composite double-network magnetic particle gel, a preparation method and application thereof, the hydrogel is composed of a particle gel network formed by gelatin nanoparticles and Fe3O4 nanoparticles through electrostatic interaction and a poly-N-isopropyl acrylamide (PNIPAM) based temperature-sensitive polymer gel network. At room temperature, the hydrogel has excellent shear thinning and self-healing properties, and can be easily injected through a needle and a microcatheter. When the temperature rises to human body temperature (37 DEG C), the temperature-sensitive polymer phase transition crosslinking enhances the mechanical properties of the gel network. The hydrogel is injectable in vitro, temperature-responsive in vivo, meets the requirements of vascular interventional embolization materials, and can be magnetically heated under an alternating magnetic field, and is used for liver cancer embolization combined with magnetic heating treatment. The preparation method is simple, has high biocompatibility, and has great clinical application potential.

This invention relates to a method for producing organometallic coordination polymers and materials obtained using the provided method. The organometallic coordination polymer synthesized according to this method has a gel structure, characterized by an effective diameter of 0.75-0.80 nm and a specific area of ​​1300-1700 m². 2 / g, micropore volume of 0.5-0.6cm³ 3 The method yields nanopores per g and improved thermal stability. The synthesis method allows for reduced material consumption during the process by using a single solvent in both the synthesis and activation stages, thus shortening the production time of the polymer gel, which is characterized by active mesopores and micropores. This makes it suitable as a matrix in various absorption processes, including natural gas storage systems.

The present application relates to a kind of porous gel electrolyte membrane based on polyvinylidene fluoride and its preparation method, belong to polymer gel electrolyte field.The porous gel electrolyte membrane includes gel electrolyte matrix, inorganic ceramic nano filler, lithium salt electrolyte and lithium salt auxiliary agent.Using phase inversion solidification method, the uniform porous structure is obtained, the adsorption and storage capacity of porous gel electrolyte membrane to electrolyte are improved;Using inorganic ceramic nano filler with high ionic conductance, the ionic conductance and mechanical strength of porous gel electrolyte membrane are enhanced;Using lithium salt added during preparation, the dehydrofluorination reaction of PVdF is inhibited, the stability of slurry is ensured, and by inducing the transition of PVdF matrix from alpha phase to beta phase, the uniform deposition of Li ion is promoted, so as to improve the cycle stability of battery.The preparation method of the present application is simple, easy to control, green and environmentally friendly, can significantly improve the ion transport kinetics and electrochemical stability of lithium ion battery.

A method of preparing a branched polymer comprises the free radical polymerisation of a multivinyl monomer in the presence of a chain transfer agent, using a source of radicals, wherein the extent of propagation is controlled relative to the extent of chain transfer to prevent gelation of the polymer. The average length of each vinyl polymer chain within the product is short.

The invention provides a CO2 response type polymer gel channeling sealing system as well as a preparation method and application thereof, and belongs to the field of oil exploitation. The CO2 response type polymer gel channeling sealing system is prepared from the following components in percentage by mass: 0.2 to 1.2 percent of CO2 response type polymer, 0.2 to 1.6 percent of cross-linking agent, 0.1 to 0.5 percent of deoxidant and the balance of water. The CO2 response type polymer gel channeling sealing system provided by the invention can be subjected to cross-linking reaction at the temperature of 110 DEG C, the channeling sealing system can be formed after cross-linking is carried out for 1-3 days, the system can resist the temperature of 150 DEG C and the salt of 200000 mg / L, the channeling sealing effect is enhanced after the system absorbs water and expands after meeting CO2, and the CO2 response type polymer gel channeling sealing system can be applied as a channeling sealing agent or a profile control water plugging agent in oilfield exploitation.

The present invention discloses a kind of hydrogel that improves satiety and its preparation method and application, relate to the technical field of polymer gel preparation.The preparation method of the hydrogel that improves satiety of the present invention includes:Cellulose derivative and water are mixed, cross-linking auxiliary agent is added, fully mix, obtain the first solution;Pectin is added to the first solution, fully mix, and pH is adjusted to 7.5 8.0 to obtain the second solution;The second solution is physically cross-linked under ultrasonic treatment to obtain the first cross-linked product;In the first cross-linked product, pectin is added, continuous stirring is carried out to obtain gel;Remove moisture, obtain the hydrogel that improves satiety.The hydrogel prepared by the present invention has good mechanical properties and strong water absorption capacity, improves satiety by water absorption and expansion, achieves good weight loss effect, and meanwhile, the hydrogel has the effect of good regulation of intestinal flora.

Systems and methods are provided for delivering a therapeutic treatment to a target population of cells (including, but not limited to, tumors, eyeballs, pancreatic tissue, liver tissue, and lung tissue) in a subject. The system includes an injectable aqueous solution in a vial enclosed with a septum. The solution comprises particles containing a therapeutic agent and having a coating surrounding the therapeutic agent, the coating comprising chitosan to provide controlled release of the agent from the particles. The solution also comprises a chitosan polymer in the form of a polymer gel matrix, further providing controlled release of the particles from the aqueous gel environment. There is also provided a method of making a freeze-dried powder placed in a vial containing a chitosan polymer and chitosan-coated particles, the powder when mixed with water forming the above injectable aqueous solution with particles and chitosan gel.

The present invention discloses a selenium-loaded photocross-linked alginate hydrogel and a preparation method thereof, and relates to the technical field of polymer gels. The preparation method is as follows: first, alginate is dissolved in deionized water, sodium chloride and a buffer are added and stirred until completely dissolved, the pH is adjusted to weak acidity, N-hydroxy-sulfosuccinimide and a condensing agent are added, and after stirring evenly, 2-aminoethyl methacrylate hydrochloride is added to carry out a methacrylate reaction to obtain methacrylated alginate. The alginate and a photoinitiator are separately dissolved in deionized water to prepare a storage solution, and selenomethionine is dissolved in the photoinitiator storage solution. Finally, a photoinitiator solution containing selenomethionine and a methacrylated alginate storage solution are mixed, and a photocross-linking reaction is initiated by ultraviolet irradiation to obtain a selenium-loaded photocross-linked alginate hydrogel. The present invention introduces selenomethionine into a photocross-linked alginate hydrogel scaffold, which has good cell biocompatibility and promotes osteogenesis.

The utility model provides a multifunctional lifting pad for preventing pressure sores and foot drop, which belongs to the field of medical equipment, and comprises an L-shaped lifting pad support, the lifting pad support comprises a lower limb supporting part and a foot supporting part, the lower limb supporting part is connected with the foot supporting part, the front side of the lower limb supporting part is provided with an arc slope, and the arc slope is connected with the lower limb supporting part. A lower limb fixing groove is formed in the lower limb supporting part, a foot fixing groove is formed in the foot supporting part, a heel groove is formed between the lower limb fixing groove and the foot fixing groove, the depth of the heel groove is larger than that of the lower limb fixing groove, and a sole covering sleeve is arranged at one end of the foot fixing groove. According to the lifting pad, the lifting pad support is arranged to be in the L shape, foot drop can be prevented, the lifting pad support is made of polymer gel, pressure sores of lower limbs can be prevented, and meanwhile the lower limbs are lifted to reduce edema.

The application discloses a high-sensitivity bending sensor based on ionic polymer gel and belongs to the technical field of flexible sensors. The high-sensitivity bending sensor based on ionic polymer gel comprises an ionic gel central sensitive layer with a double-network structure and electrode layers attached to surfaces of the ionic gel central sensitive layer in pairs, and the number of pairs of the electrodes is greater than or equal to 1; preferably, the number of pairs of the electrodes is greater than or equal to 2; wherein the ionic gel central sensitive layer is formed into the double-network structure with interwound molecular chains through cross-linking polymerization of monomers of zwitterionic polymers and monomers of flexible polymers. The device disclosed by the application exhibits multi-degree-of-freedom bending characteristics, has high bending response sensitivity and a wide response range, can identify bending directions and amplitudes, and has a wide application prospect in the field of human-computer interaction.

The utility model provides a pharyngeal ice bag, which comprises a middle ice bag containing sleeve bag, which is a rectangular open-top pocket structure, an ice bag is placed in the middle ice bag containing sleeve bag, the inner part of the ice bag is divided into multiple small compartments, each small compartment contains a polymer gel, and a set of elastic fixing belts, which comprises two pairs of elastic connecting belts arranged on both sides of the middle ice bag containing sleeve bag, the outer surface of the left strap of each pair of elastic connecting belts is provided with a Velcro surface, and the inner surface of the right strap is provided with a Velcro hook surface matched with the Velcro surface. The utility model has the advantages that it is used for preventing postoperative hemorrhage of the pharynx and relieving postoperative pain of patients. The utility model solves the problem that the pharyngeal ice bag is not easy to fix, and the method is simple and practical.

The present invention relates to a process for producing color-stable superabsorbent particles, in which an aqueous monomer solution or suspension is polymerized to form a polymer gel, the resulting polymer gel is optionally pulverized, the polymer gel is then dried, the dried polymer gel is optionally ground and classified, and the dried polymer gel is then thermally surface crosslinked and cooled, the process comprising coating with a pyrazole after polymerization.

The invention relates to a magnesium air battery, a magnesium air fiber battery and a preparation method thereof, and the preparation method comprises the following steps: dissolving bis (trifluoromethylsulfonyl) imide magnesium and chlorate in a solvent, then adding a molecular sieve, drying to remove water, and separating the molecular sieve to obtain an electrolyte; adding N-methyl pyrrolidone and poly (vinylidene fluoride-co-hexafluoropropylene) into the electrolyte, adding trimethylolpropane triacrylate as a cross-linking agent, and adding a 2-hydroxy-2-methyl-1-phenyl-1-acetone reagent as an initiator in the stirring process to obtain a polymer gel electrolyte precursor; coating the polymer gel electrolyte precursor on a glass fiber diaphragm, performing ultraviolet curing, and then assembling the polymer gel electrolyte precursor, a magnesium anode strip and a carbon nanotube film cathode to obtain the magnesium air battery. Or coating a magnesium wire with the polymer gel electrolyte precursor, carrying out ultraviolet curing, and then assembling with a carbon nanotube film cathode to obtain the magnesium air fiber battery. The anode corrosion induced by moisture is effectively inhibited in the air, and the charge-discharge reversibility is remarkably improved.

The present invention relates to a high-output DC electric energy generation device using a conductive polymer gel and, more particularly, to a technology for generating DC electric energy using a charge recombination mechanism through contact-separation and sliding methods, wherein a conductive polymer gel including a mixture of PVC and a plasticizer or a mixture of PVDF and an ionic liquid is disposed between upper and lower metal electrodes made of gold or aluminum. The present invention can provide stable and efficient DC power to various applications such as IoT sensors and small electronic devices by optimizing the thickness of the conductive polymer gel, the concentration of the plasticizer, the metal electrode material, and the like. In particular, the present invention can increase power efficiency through charge generation and accumulation processes performed by vertical and horizontal movements of the electrodes.

The invention discloses a self-repairing flexible supercapacitor based on double dynamic bonds and a preparation method thereof, and the method comprises the steps: taking limonene (LIM) and lipoic acid (LA) as monomers, and carrying out one-pot polymerization to form a three-dimensional porous gel network P (LA-LIM) based on the synergistic effect of double dynamic bonds of hydrogen bonds and disulfide bonds; the multifunctional polymer gel P (LA-LIM)-IL with good flexibility, self-healing property and ionic conductivity is prepared by further introducing ionic liquid (ILs), and the flexible symmetric supercapacitor assembled by taking nitrogen-doped porous carbon (N-C) as an electrode shows excellent self-repairing property and environmental adaptability. The method is simple and convenient in process and low in cost, and has important practical value in the field of flexible energy storage devices.