106 results about "Synthetic Polymeric Macromolecules" patented technology

The invention discloses a biomass-based reinforcing agent for paper and application of the biomass-based reinforcing agent. The reinforcing agent comprises a biomass-based material, the biomass-based material comprises a micron-sized structure and a nano-sized structure distributed on the micron-sized structure. The reinforcing agent prepared by the invention has abundant nanostructures, is beneficial to physical crosslinking such as entanglement and bridging of fibers in paper pulp, and improves the wet strength of paper; the preparation of the reinforcing agent is a simple physical process, and a complex synthesis chemical process for synthesizing a polymer in a traditional organic reinforcing agent is avoided; the reinforcing agent is prepared by a dissolution regeneration method, so that the energy consumption is low, the solvent can be recycled and reused, no chemicals are consumed, and the reinforcing agent is environment-friendly; the reinforcing agent prepared by the invention can achieve a satisfactory wet strength effect at a lower content.

The invention relates to a poly-(2-oxazoline) epoxy derivative and application thereof, and belongs to the technical field of crosslinking. The invention provides a poly-(2-oxazoline) epoxy derivative, which is completely different from existing cross-linking agents such as 1, 4-butanediol diglycidyl ether (BDDE), divinyl sulfone, glycidyl methacrylate and the like in structure, and has the advantages that the structure is simple; the polymer can be used as a cross-linking agent for cross-linking natural high-molecular polymers such as polysaccharide (such as hyaluronic acid) and protein and synthetic high-molecular polymers such as polyethylene glycol and polyvinyl alcohol. Compared with an existing cross-linking agent, the poly-(2-oxazoline) epoxy derivative has the advantages that the poly-(2-oxazoline) epoxy derivative can be easily subjected to a cross-linking reaction with high-molecular polymers such as hyaluronic acid, the prepared cross-linked substances such as sodium hyaluronate gel are more stable and uniform, the performance of the prepared cross-linked substances is easier to regulate and control and the like, and the poly-(2-oxazoline) epoxy derivative has a great application prospect.

The invention relates to a method for preparing a degradable polyacrylamide fracturing fluid through an RAFT (Reversible Addition-Fragmentation Chain Transfer) polymerization method. According to the method, a chain transfer reagent-RAFT reagent is used during synthesis of a macromolecular chain, and after the chain transfer reagent is added, the reaction rate can be effectively reduced, and gelation is avoided; the control on the molecular weight can be ensured; after the primary amine is added, a C-S bond in the RAFT reagent is converted into sulfydryl which is further oxidized into a dynamic disulfide bond in air, the molecular weight of the fracturing fluid is doubled, and the drag reduction performance of the fracturing fluid is effectively improved; after the reducing agent is added, the disulfide bond is broken, the molecular weight is rapidly reduced, and after the oxidizing agent is added, the molecular weight can be rapidly increased. The obtained linear drag reducer can reach the degradation rate of 87% or above, and has important significance on exploration and development of oil and gas resources.

The invention relates to the technical field of ecological restoration, in particular to an ecological restoration composite material and a preparation method thereof. Comprising a base material: 30-70 parts of a natural polymer material or a degradable synthetic polymer material; reinforced fibers: 5-40 parts of natural fibers or degradable synthetic fibers; a functional additive: 10-40 parts of at least one of a water-retaining agent, an organic fertilizer, a microbial carrier and a soil conditioner; a plant growth promoter: 1-15 parts of humic acid, a seaweed extract, a trace element fertilizer or an antagonistic antibacterial agent; a binder: 0 to 15 parts of a degradable polymer binder; and 5-15 parts by weight of water. According to the invention, the biodegradability of the material is ensured, the mechanical strength is improved and the overall performance of the composite material is enhanced by optimizing the combination of base materials, pretreating the reinforced fibers, achieving the synergistic effect of the multifunctional additive and efficiently loading the plant growth promoter; the ecological restoration composite material provides long-term support for plant growth.

The invention discloses a method for in-situ rapid growth of a dual-network hydrogel coating on the surface of a base material by a one-step method, which comprises the following steps: putting the base material with an adhesion initiation layer on the surface into a hydrogel precursor solution, and carrying out in-situ polymerization for 0.1-10 minutes under light irradiation, wherein the adhesion initiation layer comprises an adhesive compound based on a catechol group and a first photoinitiator, and the hydrogel precursor solution comprises a natural polymer containing tyrosine, an acrylic monomer, a cross-linking agent and a second photoinitiator, and wherein the first photoinitiator and the second photoinitiator are different from each other and are independently selected from a divalent ruthenium compound and a persulfate. Compared with the prior art, the natural / synthetic polymer double-network gel coating with biological activity and mechanical property can grow on the surfaces of different substrates more quickly and efficiently through a one-step method; and the base material, the surface of which is modified by the in-situ grown double-network hydrogel coating, obtained by the method can be applied to in-vivo medical apparatuses and instruments.

The invention belongs to the technical field of synthetic high polymer materials, and relates to water-soluble polyamide acid salt as well as a water-phase one-pot preparation method and application thereof. The preparation method comprises the following steps: completely dissolving an aromatic dianhydride monomer in water to obtain a first solution, completely dissolving an aromatic diamine monomer and an organic alkali in water to obtain a second solution, mixing the first solution and the second solution, carrying out a polymerization reaction, after the polymerization reaction is finished, adding an end-capping reagent, continuously stirring until the end-capping reagent is completely dissolved, and removing water to obtain a finished product. The water-soluble polyamide acid salt is obtained. According to the preparation method, water is used as a solvent, a single-step polymerization reaction is adopted, any subsequent purification treatment step is not needed, the production process is green and environment-friendly, the process is simple and convenient, the cost is low, and the preparation method is not limited by the feeding amount of aromatic dianhydride monomers and the scale of a reaction system. The viscosity average molecular weight of the finally prepared water-soluble polyamide acid salt is 8.0 * 10 < 3 >-2.0 * 10 < 4 > g / mol, the film forming effect is excellent, and the water-soluble polyamide acid salt can be used as sizing liquid.

The invention belongs to the technical field of biomedical materials, and discloses a conductive composite scaffold of a bionic nerve orientation structure and a preparation method of the conductive composite scaffold of the bionic nerve orientation structure, and the conductive composite scaffold of the bionic orientation structure is formed by compounding a structural layer and a functional layer, the structural layer is an oriented nanofiber membrane (made of a natural high-molecular polymer containing amino and a synthetic high-molecular polymer), the functional layer is ionic conductive hydrogel (made of a natural high-molecular polymer containing amino and a natural high-molecular polymer containing carboxyl), and the structural layer and the functional layer are compounded through the action of an amido bond; the amido bond is formed by reacting amino of the oriented nanofiber membrane with carboxyl of the ionic conductive hydrogel under an acidic condition; the preparation method comprises the following steps: compounding the structural layer and the functional layer by using glacial acetic acid by adopting a chemical cross-linking method to prepare the conductive composite nerve scaffold with the bionic orientation structure. According to the invention, electric signal transmission between cells can be realized, and the efficiency of damaged nervous tissue repair is improved.

The invention discloses a composite stent for rotator cuff repair and a preparation method thereof, and belongs to the field of medical instruments. The stent comprises a sheet-shaped composite layer and a strip-shaped composite layer, the sheet-shaped layer is formed by compounding a synthetic polymer woven body with a natural polymer sponge, the strip-shaped layer is formed by compounding a synthetic polymer woven body with a natural sponge containing nano-hydroxyapatite, the sheet-shaped layer and the strip-shaped layer are directly connected through a warp knitting or weft knitting process, and the width ratio is (5: 1)-(10: 1). During preparation, the woven sheet layer and the woven strip layer are soaked in a natural polymer solution and a solution containing nano-hydroxyapatite respectively, and the porous sponge composite is formed through pre-freezing and freeze-drying. According to the scaffold, mechanical strength matching is achieved through weaving connection, bone regeneration is induced in a targeted mode through hydroxyapatite, meanwhile, the porous sponge is matched with soft tissue healing, the problems that a traditional patch is poor in bone tunnel integration and interface stress is concentrated are solved, and the scaffold is suitable for rotator cuff injury repair.

The invention discloses a synthetic polymer waterproof coiled material and a preparation method thereof, and relates to the technical field of waterproof coiled materials, the synthetic polymer waterproof coiled material comprises a synthetic polymer layer, polyester layers are arranged on the upper and lower sides of the synthetic polymer layer, the top of the upper polyester layer is fixedly coated with a waterproof coating, and the bottom of the lower polyester layer is fixedly coated with a primer. Oil film protection paper is fixedly adhered to the bottom of the primer, and the preparation method of the synthetic polymer waterproof roll comprises the following steps: step 1, preparing raw materials; 2, preparing a sizing material; the polyester layers are compounded on the upper side and the lower side of the synthetic polymer layer, so that the tensile property and the stability of the whole coiled material are improved by utilizing the characteristics of the polyester layers, meanwhile, the waterproof coiled material has excellent properties such as moisture resistance, UV resistance and chemical substance resistance, and meanwhile, the waterproof coating is coated on the top of the uppermost polyester layer, so that the waterproof performance of the coiled material is improved. Therefore, the waterproof effect of the coiled material is further optimized, and the waterproof comprehensiveness is improved.

The invention provides temperature-sensitive enhanced composite hydrogel as well as a preparation method and application thereof. The temperature-sensitive enhanced composite hydrogel is prepared from the following raw materials: a triblock copolymer, hydroxybutyl chitosan and an aqueous medium. According to the invention, the synthetic polymer material and the natural biopolymer derivative are compounded, so that the defects of a single-component material are overcome, the mechanical strength and stability of the hydrogel are remarkably improved, and the prepared hydrogel has good biocompatibility and degradability.

The present application discloses a low-viscosity silane-terminated resin for a sealant and a preparation method thereof, and belongs to the technical field of sealants. The present application firstly uses an alcohol initiator, an alkali earth metal and epoxy alkane to synthesize a low-molecular-weight polymer, then adds a polymetallic cyanide catalyst and the epoxy alkane to synthesize a high-molecular-weight polymer, and finally adds carboxylate metal and isocyanate silane to react to obtain the silane-terminated resin. A short chain segment is successfully introduced into a molecule, and an original molecular crystal is destroyed, to achieve intramolecular plasticization, so that its molecular chain becomes flexible and is easy to move, thus the purpose of reducing viscosity is achieved.

The invention discloses an automotive flame-retardant polypropylene composite material and a preparation method thereof, relates to synthesis of cerium oxide and modification of a polymer composite material, and belongs to the field of flame retardance. The flame-retardant polypropylene composite material for the vehicle comprises the following raw materials in percentage by mass: 1-2% of cerium oxide, 16-30% of piperazine pyrophosphate and 68-82% of polypropylene, the cerium oxide is prepared by a liquid phase deposition-hydrothermal synthesis method, and the preparation method comprises the following steps: respectively drying the cerium oxide, the piperazine pyrophosphate and the polypropylene; and premixing the dried cerium oxide, piperazine pyrophosphate and polypropylene, putting into a torque rheometer, and carrying out melt blending to obtain the composite material. The flame retardant property of the material is improved while the mechanical property of the material is ensured.

The application discloses an anti-bending artificial blood vessel, which comprises an artificial blood vessel inner layer, a synthetic polymer anti-bending ring and an artificial blood vessel outer layer; the artificial blood vessel inner layer is a synthetic polymer tube body; the artificial blood vessel outer layer is a synthetic polymer fiber membrane; the shape of the synthetic polymer anti-bending ring is a non-equidistant spiral structure; the synthetic polymer anti-bending ring is wound on the outer wall of the artificial blood vessel inner layer, is between the artificial blood vessel inner layer and the artificial blood vessel outer layer, and is fixed by being covered by the artificial blood vessel inner layer and the artificial blood vessel outer layer. The application further discloses a preparation method of the artificial blood vessel. The application can make the artificial blood vessel to be bent by 180 degrees in a full ring without flat collapse and kinking, can ensure that the whole artificial blood vessel has good anti-bending performance, can effectively improve the anti-bending performance of the artificial blood vessel, and can effectively improve the compliance of the artificial blood vessel.

The invention relates to the technical field of adhesives, in particular to a high-viscosity acrylate adhesive and a preparation method thereof. According to the preparation method of the acrylate adhesive provided by the invention, a solution is low in viscosity and good in heat transfer at the initial stage of reaction, firstly, decomposition of an initiator is promoted by adopting high temperature to induce the reaction to be rapidly carried out, and a large number of active sites are generated; along with the reaction, the system viscosity is increased, heat transfer is difficult, the reaction temperature is reduced, the reaction rate is slowed down, excessive reaction heat is avoided, meanwhile, the decomposition rate of an initiator can be slowed down by reducing the temperature, and formation of long-chain molecules is facilitated. Through high / low temperature segmented temperature control, the reaction process is easy to control, the high molecular weight acrylate polymer is synthesized under the condition of high monomer concentration, and the prepared acrylate adhesive has good stripping force, initial adhesion force, adhesion force, permanent adhesion force and durability.

The invention discloses a synthesis method of a carbon dioxide-based alkene / ether / ester group functionalized polyurethane high polymer material, which is a novel method for synthesizing a novel alkene / ether / ester group functionalized polyurethane high polymer material with a clear structure and a specific spatial configuration by taking carbon dioxide platform molecule ethylene carbonate as a raw material and utilizing a hydroxyl-alkyne click reaction. Relates to the technical fields of organic synthesis, polymer synthesis, polymer chemistry, polymer materials and the like. The carbon dioxide-based bifunctional alcohol monomer is efficiently synthesized through aminolysis reaction of diamine and ethylene carbonate, a hydroxyl-alkyne polymerization system is developed, organic phosphine or organic amine which is low in price and easy to obtain is used as a catalyst, addition polymerization reaction of the bifunctional alcohol monomer and the bifunctional alkynoic acid ester monomer under mild conditions is achieved, and the carbon dioxide-based bifunctional alcohol monomer is synthesized. A series of novel alkene / ether / ester group functionalized polyurethane high polymer materials with clear structures and specific spatial configurations are constructed.

This invention relates to the field of biomedical polymer materials and surface modification engineering, specifically to a posterior scleral reinforcement material and its preparation method. It comprises a polymer matrix and a bioactive modified layer formed by the oxidative crosslinking of a heterobifunctional polymer coupling compound. This copolymer structure includes anchoring groups, hydrophilic linkers, and bioactive groups. Its core principle is to utilize the flexible extension of the hydrophilic linkers to reduce steric hindrance, fully exposing the bioactive groups to the material surface, thereby achieving efficient recognition and binding to integrin receptors. This invention effectively solves the problems of bioinertness of the synthesized polymer matrix and lack of cell recognition sites, achieving a cell proliferation rate more than twice that of the unmodified matrix, demonstrating the material's excellent bioactivity and cell compatibility.

The invention discloses a sealant with bacteriostatic and mildew-proof functions for a metal bottle cap and a preparation method of the sealant, and belongs to the technical field of sealant preparation. The sealant provided by the invention is prepared from the following raw material components in percentage by mass: 40.0 to 55.0 percent of an auxiliary agent A, 0.5 to 3.0 percent of an auxiliary agent B, 2.0 to 4.0 percent of zinc stearate, 1.0 to 3.0 percent of titanium dioxide, 1.0 to 5.0 percent of ground calcium carbonate, 0.5 to 2.5 percent of an anti-blocking agent and 39.0 to 55.0 percent of polyvinyl chloride resin, the auxiliary agent A is prepared from at least two of dioctyl terephthalate, epoxidized soybean oil, trimellitic anhydride and cyclohexane 1, 2-diisononyl diformate; the auxiliary agent B is obtained by mixing and grinding zinc oxide, metal silver, zirconium phosphate, zinc pyrithione and coconut oil fatty acid diacetamide. According to the invention, the sealant is prepared by compounding multi-component food-grade antibacterial mildew-proof active components, so that the prepared sealant is ensured to reach the first-grade standard of ASTM G21-15 Determination of Antifungal Factor of Synthetic High Polymer Materials, meanwhile, the risk that the sealant is mildewed when being used in canned food is reduced, and the quality of the product is improved.

The invention discloses a composite artificial cavity / membrane tissue and a preparation method thereof. The composite artificial cavity / membrane tissue is formed by compounding a synthetic high-molecular material and a natural high-molecular biological material, and the synthetic high-molecular material is selected from more than one of silicone, synthetic high-molecular hydrogel and an acrylic polymer. The natural polymer biological material is selected from more than one of an acellular matrix scaffold material, a non-acellular matrix and non-acellular collagen. The composite artificial cavity / membrane tissue provided by the invention has the advantages of good healing after transplantation, high biomechanical strength, low immunogenicity, smooth surface and the like.

Disclosed in the present application are a hemostatic sponge and a preparation method therefor. The hemostatic sponge of the present application is composed of a functionalized polymer and a thickening agent, and may optionally comprise a photoinitiator. The functionalized polymer is a functional group-modified natural polymer and / or synthesized polymer. The hemostatic sponge is formed by means of crosslinking via interaction between functional groups or crosslinking induced by the photoinitiator. The functional groups include at least one of hydroxyl, aldehyde group, carboxyl, amino, sulfydryl, hydrazone bond, hydrazide, olefin, alkynyl, polyphenol, succinimidyl active ester, maleimide, and isocyanate. The hemostatic sponge of the present application exhibits the following advantages: shape memory capability, high expansion rate, good mechanical strength, adjustable physical and chemical properties, being compressible, and being injectable. The hemostatic sponge of the present application demonstrates good biocompatibility, biodegradability, rapid water absorption rate and high water uptake capacity, and fast volumetric expansion, and it can adsorb and enrich red blood cells and platelets, thereby promoting blood coagulation and shortening hemostasis time. The hemostatic sponge also has high compression strength and enables pressing hemostasis.

The present application belongs to the field of cosmetics, and relates to a kind of refreshing essence containing fluorine and a preparation method thereof.The essence includes the following mass percentage components: oil phase (0.01-15) %, fluorine-containing organic compound phase (1-15) % and water phase (80-90) %, wherein the water phase contains natural polymer and synthetic polymer and deionized water in remainder.Compared with the prior art, the present application uses high molecular polymer instead of emulsifier to disperse and stabilize oil, makes the essence material body uniform, avoids the sticky feeling and possible irritation caused by the use of emulsifier, and uses fluorine-containing organic compound instead of part of oil.Compared with the use of oil alone, the addition of fluorine-containing organic compound is equivalent to diluting the oil, reducing the amount of oil used, making the product more refreshing, and not losing the moisturizing feeling.

The application is a method for preparing degradable polyacrylamide fracturing fluid by a RAFT polymerization method. The method uses a chain transfer agent, a RAFT agent, when synthesizing a polymer chain. After adding the chain transfer agent, the reaction rate can be effectively reduced to avoid gelation; the control of the molecular weight can be ensured; after adding a primary amine, the C-S bond in the RAFT agent is converted into a mercapto group, which is further oxidized into a dynamic disulfide bond in the air, the molecular weight of the fracturing fluid is doubled, and the drag reduction performance of the fracturing fluid is effectively improved; after adding a reducing agent, the disulfide bond is broken, the molecular weight is rapidly reduced, and after adding an oxidizing agent, the molecular weight can also be rapidly increased, so that the repeated use can be realized. The linear drag reducer obtained by the application can achieve a degradation rate of more than 87%, which has important significance for oil and gas resource exploration and development.

The invention relates to the technical field of biological tissue engineering, in particular to injectable amnion compound gel as well as a preparation method and application thereof. The problems that an existing material is non-adjustable in degradation and mechanical property, amnion particles are prone to displacement and sedimentation, cell loading is insufficient, and repairing is not long-acting are solved. Comprising a composite stent membrane and aldehyde hyaluronic acid gel in a mass ratio of 1: (3-10), and the membrane is formed by freeze-drying and grinding a composite stent; the stent comprises an upper electrostatic spinning fiber membrane layer, a decellularized amnion matrix middle layer and a lower electrostatic spinning fiber membrane layer which are sequentially stacked and are crosslinked and combined into a whole; electrostatic spinning fibers in the upper electrostatic spinning fiber membrane layer and the lower electrostatic spinning fiber membrane layer are of core-shell structures, and raw material components of shell layers comprise natural high polymer materials; the core raw material component comprises a synthetic high polymer material. The preparation method comprises the following steps: preparing the decellularized amniotic membrane matrix, constructing the gradient fiber membrane layer through coaxial electrostatic spinning, cross-linking tannic acid, freeze-drying and grinding, and preparing and compounding formylated hyaluronic acid gel.

The invention provides a compound preparation containing macarovir, a preparation method and application of the compound preparation in anti-influenza treatment, the multi-layer pellet compound preparation sequentially comprises a pellet core layer containing macarovir, an isolating layer, an active layer and an enteric layer from inside to outside, the pellet core layer containing macarovir and a sustained-release material, the isolating layer comprises an adhesive and an anti-sticking agent, the active layer comprises a hydrophobic layer and a hydrophobic layer, and the enteric layer comprises a hydrophobic layer and a hydrophobic layer. The active layer comprises oseltamivir phosphate and an adhesive, and the enteric-coated layer is made of synthetic polymer materials. The multi-layer pellet provided by the invention has good compressibility, disintegrability and lubricity. The compound preparation solves the problems of drug resistance, drug interaction and children medication compliance. The preparation is suitable for single-drug or combined treatment of influenza A / B viruses, and is especially suitable for children and drug-resistant influenza patients.

The invention provides a pH and redox dual-responsive cryogel material and a preparation method and application thereof, and the pH and redox dual-responsive cryogel material is prepared by modifying a natural polymer or a synthetic polymer grafted hydrazide and an aldehyde group with biocompatibility, and condensing the hydrazide and the aldehyde group into a reversible dynamic covalent bond acylhydrazone bond at low temperature. The shape memory crystal gel for quickly stopping bleeding is formed. The cryogel generates gel-sol change in an acid environment, disulfide bonds can be broken under the action of a reducing agent, and material removal and wound cleaning after hemostasis are facilitated. The cryogel material provided by the invention is low in raw material price, simple in process, good in biocompatibility and obvious in pH responsiveness, forms a physical barrier to block a bleeding wound after being in contact with blood, and is easy to remove after being dissolved in an acid environment.

The invention relates to a polyesteramide copolymer as well as a preparation method and application thereof, and belongs to the technical field of high polymer materials. The polyesteramide copolymer is prepared by the following preparation method: heating hydroxy acid, amino acid and caprolactam in the presence of a catalyst, and carrying out ring opening-condensation cascade polymerization to obtain the polyesteramide copolymer. The preparation method disclosed by the invention can be used for synthesizing the polyesteramide copolymer with high molecular weight and high performance in one step, and the polyesteramide copolymer has higher strength, toughness, elongation at break and good biodegradability, and has wide application prospects in the fields of engineering plastics, drug delivery, automobile accessories and the like.

The application discloses a kind of essence microcapsules for candle and preparation method.The microcapsule includes capsule core and capsule wall, the capsule core is essence, and the capsule wall is formed by natural polymer material (such as gelatin, gum arabic) and synthetic polymer material (such as polyurea, polyamide) compound, and the essence content in capsule core is 20%-60% of the total weight of microcapsule.The preparation method is to prepare natural polymer solution and synthetic polymer solution respectively, add essence into natural polymer solution to obtain mixed solution, then drop synthetic polymer solution into mixed solution and stir to form emulsion, then adjust the pH value of emulsion to make capsule wall material polymerization to form microcapsule, and finally, after washing and drying, the finished product is obtained.The microcapsule of the application can effectively protect the essence, can accurately control the release speed of the essence, prolong the candle fragrance time, and the preparation process is simple, convenient to operate, easy to scale production, which provides a better solution for the application of candle essence, and has good application prospect in candle manufacturing field.

Some embodiments of the disclosure provide a polymer film used for a biosensor. The polymer film has a three-dimensional network structure formed by a natural high-molecular polymer and a synthetic high-molecular polymer by a plurality of crosslinking modes. The three-dimensional network structure includes a chemically crosslinked network and a reversible physically crosslinked network, the chemically crosslinked network being formed by covalent bond crosslinking and the reversible physically crosslinked network being formed by ionic bond crosslinking. The chemically crosslinked network has covalent bond crosslinking between the synthetic high-molecular polymers and covalent bond crosslinking between the natural high-molecular polymer and the synthetic high-molecular polymer. The physically crosslinked network has ionic bond crosslinking between natural high-molecular polymers.

Provided is a method for producing a laminate provided with a synthetic polymer film having antibacterial and / or antiviral properties. A method for producing a laminate provided with a synthetic polymer film having antibacterial and / or antiviral properties, the method comprising: preparing a laminate (50A) having a base material (42) and a synthetic polymer film (34A) formed on the base material, the synthetic polymer film (34A) having, on the surface thereof, a cross-linking agent (34A) formed on the base material (42), the cross-linking agent (34A) being formed on the synthetic polymer film (34A) when viewed from the normal direction of the synthetic polymer film (34A); a plurality of protrusions (34Ap) having an area circle equivalent diameter in the range of greater than 20 nm and less than 500 nm; and irradiating the plurality of protrusions of the laminate with light emitted from the xenon lamp such that the irradiation amount of light in the wavelength range of 300 nm to 400 nm is 6 MJ / m2 or more.

To provide an antifogging sheet structure having excellent antifogging properties.SOLUTION: An antifogging sheet structural body 100 includes a substrate 22 formed of polycarbonate, a first synthetic polymer film 24 formed on the first main surface side of the substrate, and a second synthetic polymer film 26 formed on the second main surface side of the substrate, wherein the first synthetic polymer film has a plurality of first convex portions on its surface having an equivalent circle diameter Dp1 in the range of more than 50 nm and less than 500 nm, and the second synthetic polymer film has a plurality of second convex portions on its surface having an equivalent circle diameter Dp2 in the range of more than 20 nm and less than 500 nm, the first synthetic polymer film is formed from a cured product of a photocurable resin containing 30 mass% or more of ethoxylated pentaerythritol tetraacrylate, and when the surface of the first synthetic polymer film is contacted with saturated water vapor at 50°C, the time for the linear visible light transmittance of the first synthetic polymer film to decrease to 80% of the initial value is 90 seconds or more.SELECTED DRAWING: Figure 6

The invention belongs to the technical field of inorganic functional materials and electrochemical energy, and particularly relates to an anti-freezing hydrogel electrolyte for a zinc-air battery as well as a preparation method and application of the anti-freezing hydrogel electrolyte. Nano-cellulose is used as a hydrogel substrate to prepare hydrogel of a 3D network porous structure, the flexibility of the network structure is enhanced through combination of natural cellulose and synthetic macromolecules, low-temperature embrittlement is prevented, the hydrogel has good mechanical performance, the porous structure is filled with lithium salt, the ion mobility is improved by adding the lithium salt, and the performance of the hydrogel is improved. According to the zinc-air battery electrolyte, the ionic conductivity is enhanced, the electrolyte interacts with a high-water-retention polymer, so that the conductivity of the electrolyte is improved, the conductivity can reach 245mS / cm at normal temperature, and the electrolyte has stable electrochemical performance and good mechanical performance at low temperature, so that the zinc-air battery can be normally used under pressure and bending states. The invention is used for overcoming the problems that the existing solid electrolyte is blocked and damaged in performance at the temperature of below 0 DEG C, unstable in cycle performance, low in ionic conductivity and the like.