670results about How to "Excellent self-healing performance" patented technology

The invention provides a preparing method of thermally-driven self-repairing elastomer based on hydrogen-bond interaction. The method comprises the steps that firstly, ureido pyrimidone type mono-isocyanate molecules are prepared, then diisocyanate is used for carrying out chain extension on low polymer glycol to prepare a hydroxyl-terminated polyurethane low polymer, and finally, Upy-terminated type thermally-driven self-repairing elastomer is prepared by terminating the hydroxyl-terminated polyurethane low polymer with UPY-NCO; secondly, ureido pyrimidone type diisocyanate is prepared, then ureido pyrimidone type diisocyanate and the low polymer glycol are subjected to addition polymerization, and the hydrogen bond network type thermally-driven self-repairing elastomer with Upy units in a main chain controllable is prepared. Compared with a traditional foreign-aid type self-preparing material (a micro capsule type, a micro vessel type and the like), the thermally-driven self-repairing material is a thermoplastic material and can be repeatedly processed and used, and theoretically multi-time repairing capability can be achieved at the same position.

The invention discloses a high-temperature self-repair-type epoxide resin material and a process for preparation, the process comprises adding microcapsule and accelerating agent which are evenly mixed into the basal body of epoxide resin, adding curing agent into the basal body of epoxide resin to evenly mix, finally, curing molding and getting high-temperature self-repair-type epoxide resin material. When cracks are produced on the high-temperature self-repair-type epoxide resin material of the invention because of forcing in the process of processing and employing, the cracks are extended to the built-in microcapsule, and the microcapsule wall is led to crack, liquid-state epoxide resin in the microcapsule is immediately released to fill into the cracks, the accelerating agent which is built in the basal body leads the liquid-state epoxide resin to be solidified under high temperature, thereby rebinding the cracks together, and the damage of the material is repaired, thereby keeping the mechanical properties of the epoxy composite material and prolonging the life span.

The invention provides a self-repairing polymer electrolyte matrix and a preparation method thereof, a self-repairing polymer electrolyte, a lithium ion battery and an application thereof, which belong to the technical field of self-repairing polymer electrolytes. The invention provides the self-repairing polymer electrolyte. The self-repairing polymer electrolyte matrix comprises an inorganic nano-additive, self-repairing polyurethane and other polymers, wherein the inorganic nano-additive and the other polymers are grafted on the self-repairing polyurethane; and the self-repairing polyurethane is obtained by a Diels- Alder reaction. The reversible action of a furan-maleimide structure in the self-repairing polyurethane endows the self-repairing polymer electrolyte matrix with good self-repairing ability; the polymer electrolyte endows the self-repairing polymer electrolyte matrix with good ionic conductivity; the inorganic nano-additive provides active sites, so that the polymers areprone to form a three-dimensional crosslinked structure, therebt further improving the ionic conductivity.

The invention discloses a quick-setting cement-based capillary crystalline self-repairing waterproofing material and a preparation method therefor. The quick-setting cement-based capillary crystalline self-repairing waterproofing material is prepared from the following ingredients in parts by weight: 55-75 parts of silicate cement, 25-45 parts of quartz sand, 3-10 parts of buffering agent, 4-12 parts of active ingredient A, 4-15 parts of active ingredient B, 2-6 parts of expanding agent, 1-12 parts of calcium ion supplement and 1-4 parts of water reducing agent. The waterproofing material disclosed by the invention is prepared by a simple physical mixing method, is short in initial setting time and low in chloride ion content and can infiltrate into the interior of a cement-based material to form crystals so as to block up microcracks, thus, the folding and compressing resistance and secondary infiltrating resistance are improved, and meanwhile, the cement-based material is endowed with long-lasting self-repairing performance and good waterproof and durable performance. In addition, the preparation method for the quick-setting cement-based capillary crystalline self-repairing waterproofing material is simple, has low requirements on equipment and processes and has very high application power.

The invention discloses a high-temperature self-repair-type fiber-reinforcement epoxy composite material and a process for preparation, the process comprises adding microcapsule and accelerating agent which are evenly mixed into the basal body of epoxide resin, adding curing agent into the basal body of epoxide resin to evenly mix, infiltrating fiber-reinforcement reinforced materials with the mixture which is got, plying, finally, curing molding and getting high-temperature self-repair-type fiber-reinforcement epoxy composite material. When cracks are produced on the high-temperature self-repair-type fiber-reinforcement epoxy composite material of the invention because of forcing in the process of processing and employing, the cracks are extended to the built-in microcapsule, and the microcapsule wall is led to crack, liquid-state epoxide resin in the microcapsule is immediately released to fill into the cracks, the accelerating agent which is built in the basal body leads the liquid-state epoxide resin to be solidified under high temperature, thereby rebinding the cracks together, and the damage of the material is repaired, thereby keeping the mechanical properties of the epoxy composite material and prolonging the life span.

A switch comprises an insulated container (1), a liquid metal (2), resistance liquid (3), a capacitance plate (4), a pole plate insulating layer (5), an inductor (6), a first connecting point (Y plus), a second connection point (Y minus), and electric insulating oil. An electronic system is provided with the above switch. A power system is provided with the switch. An automatic system is provided with the electronic system and the power system above. A mechanical device is provided with an electrical machine and the switch above. A measuring device is provided with the mechanical device above. A labour protection air-exhausting device is provided with the electric machine, an exhaust air duct, an exhaust fan and the switch above. The switch, the electronic system, the power system, the automatic system, the mechanical device, the measuring device and the labour protection air-exhausting device of the invention are simple in structure, long in service life and low in cost.

The invention relates to a molybdate doped polypyrrole / epoxy resin self-healing coating, a preparation method thereof and an application thereof, and belongs to the field of metal anti-corrosion coatings. The coating is composed of two parts, namely a polypyrrole / epoxy resin system mother liquor, and a polyamide curing agent. The polypyrrole / epoxy resin system mother liquor comprises molybdate doped polypyrrole, epoxy resin, an anti-settling agent, an anti-foaming agent, a levelling agent and an organic solvent. The molybdate doped polypyrrole is added in the organic solvent and then the mixture is uniformly dispersed in an ultrasonic dispersion instrument. After that, the anti-settling agent, the antifoaming agent and the levelling agent are added respectively, and are stirred on a magnetic stirring apparatus. Then the epoxy resin is added to form the uniformly dispersed polypyrrole / epoxy resin system mother liquor. The polyamide curing agent is added in the prepared mother liquor, and is stirred to be uniformly dispersed. In this way, a molybdate doped polypyrrole / epoxy resin self-healing coating can be obtained. The coating is sprayed or brushed onto the 2024 type aluminum alloy after being subjected to oil-removing treatment. After the drying and curing process of the coating at the room temperature, a molybdate doped polypyrrole / epoxy resin self-healing coating can be formed.

The low temperature quick aluminizing agent specially for petroleum pipe and casing consists of metal source, activator, catalyst and stuffing. The metal source consists of 150-mesh Al powder in 10-20 wt% of the aluminizing agent, 120-mesh Zn powder in 10-25 wt%, 150-mesh Zn-Fe alloy powder in 10-20 wt% and / or 150-mesh Fe-Al alloy powder in 10-15 wt%. The activator consists of ammonium chloride, aluminum chloride, sodium fluoride and / or potassium bifluoride. The catalyst consists of 100-mesh Mo powder in 0-3 wt% and La and Os 0-3 wt%, with La and Os in the weight ratio of 1 to 1. The stuffing is 100-mesh alumina powder. The aluminizing agent is applied at 380-500 deg.c to obtain aluminized layer.

The invention relates to a high-strength self-repair hydrogel preparation method, which comprises: 1, preparing a polyvinyl alcohol, agar and acrylic acid composite solution; and 2, preparing a high-strength self-repair three-network hydrogel. According to the present invention, the high-strength hydrogel is prepared by using the one-pot method through polymerization, cooling and freezing-thaw cycle, wherein the three polymers provide the effects of hydrogen bonding and macromolecular entanglement so as to make the hydrogel have high mechanical strength; during the preparation, iron ions are added, and can form the good coordination effect with the carboxyl group of the polyacrylic acid, such that the hydrogel has good self-repair property; the prepared polyacrylic acid / agar / polyvinyl alcohol three-network hydrogel has advantages of high mechanical strength and good self-repair performance, simple preparation process, wide raw material source, low cost and environmental protection, andcan be used as tissue engineering, scaffold repair materials, agricultural sensors and the like, and can be widely used in biomedical materials, agricultural materials and other fields.

The invention relates to a self-repairing and force-response polyurethane material and a preparation method and applications thereof, belonging to the field of polymer materials. The self-repairing and force-response polyurethane material is prepared from the following raw materials: diisocyanate, polyester polyol or polyether polyol, a diamine / diol chain extender and a metal salt cross-linking agent. A novel ligand is adopted as a chain extender preparation material, so that the cost is low, the preparation technology is simple, and large-scale production is easy; the prepared material has excellent performance, higher tensile strength and elongation at break, and excellent self-repairing performance; and the repairing conditions of the material are very mild, the material has the function of inducting external action force, and the fluorescence performance of the material can be changed under the action of force.

The invention discloses a clean-type heavy-duty open gear grease with self-repairing function. The product is composed of a lubricating grease base grease prepared from an organic compound thickening mineral oil containing carbamido in molecules or synthetic oil, and additives. A base grease thickener is composed of an MDI and organic amine in a molar ratio of 1:1-3; and the base oil is mineral oil or poly alpha olefin synthetic oil. The heavy-duty open gear grease comprises the following components, calculated by the weight of the base grease: 50-60wt% of base grease, 4-8wt% of a extreme pressure antiwear agent, 1-4wt% of an oily agent, 6-8wt% of a solid additive, 0.5-1.5wt% of an antirust agent, 25-35wt% of a tackifier, 2-4wt% of a self-repairing additive, and 0.3-1.0wt% of an antioxidant. The invention adopts borate as the extreme pressure antiwear agent added with an extreme pressure agent containing a small amount of sulfur phosphorus, so as to improve the extreme pressure anti-wear performance of the lubricating grease, as well as realize low toxicity, tastelessness and environment-friendliness of the grease. Besides, soft metal Cu nanoparticles employed by the invention endow good self-repairing performance on the grease. Compared with a traditional open gear lubricant product, the heavy-duty open gear grease provided by the invention has characteristics of excellent lubrication performance, self repairing, tastelessness and environment-friendliness, and can be widely used for lubricating of open gears.

The invention relates to an asphalt-based non-curable heat-resistant waterproof sealant and a preparation method of the sealant. The sealant comprises the following components in percentage by weight: 10-35% of asphalt, 5-15% of rubber oil, 1-3% of polyolefin processing modifier, 20-30% of 30Mu-100Mu glue powder, 5-10% of tackifier, 10-30 of sodium bentonite, and 3-5% of wetting dispersant reagent. The sealant has the following characteristics of good bonding property, high percentage elongation, good self-healing property, good creep property, possible construction of knife coating, spray coating or grouting, no need to maintain, capability of being constructed on wet foundation surface even under condition of (-40) DEG C and thus effectively shortening the construction period, no organic solvent, low energy consumption in construction, safety, environmental friendliness, no pollution, high-temperature resistance (not flowing at 110 DEC C), low-temperature resistance (not cracking at (-40) DEG C), stable property, good stickiness, and capability of sealing base layer cracks and pores so as to avoid water channeling phenomenon.

The invention discloses a nanometer colloid particle-assembled high-strength self-repairing injectable composite colloid gel material and a preparation method and application thereof. According to the preparation method, two-phase colloid particles with opposite electric charges are uniformly blended in an alkaline or acidic environment, an acidifying agent or alkalizing agent is added to induce the pH of the solution to recover the neutrality, electrostatic self-assembly among the two-phase colloid particles is initiated, and a uniformly-dispersed composite gel network is formed, wherein the gel is high in mechanical strength and wide in regulation and control range, the elasticity modulus of the gel can be regulated and controlled within the range of 10 Pa-100 kPa, and the self-repairing efficiency of the gel is higher than or equal to 100%. The silicon dioxide-gelatin composite colloid gel which has both the high mechanical strength and the self-repairing performance is finally and successfully prepared, and it is verified that the composite gel still can quickly recover the mechanical strength after being broken by shear force many times; in addition, the composite gel has the excellent injectable property and plasticity and can be used for an in-vitro cell culture matrix material by serving as an injectable biological material.

The invention relates to a hydrogen resistant coating and a preparation method thereof, in particular to a hydrogen resistant coating containing an Al2O3Er2O3 composite structure. The coating comprises a basal body, a metal transition layer and an Al2O3Er2O3 composite coating arranged in sequence, wherein the basal body can be made of activated martensite steel; the metal transition layer can be made of FeAl alloy; and the composite coating can be divided into two forms of a single-layer composite coating and a multi-layer gradient composite coating according to different compositions and structures, wherein the single-layer composite coating is formed by preparing a coating on the metal transition layer, the component of the single-layer composite coating is xAl2O3-(1-x)Er2O3, the single-layer composite coating is composited according to the ratio more than 0 and less than 100 percent, the multi-layer gradient composite coating is formed by a plurality of layers of composite coating comprising xAl2O3-(1-x)Er2O3 (x is more than or equal to 0 and less than or equal to 100 percent) with different x values.

The invention discloses a preparation method for polyaniline-based self-repairing conductive hydrogel and belongs to the technical field of a high polymer material. The method is characterized in that polyaniline is used as a conductive high polymer material, and polymethylacrylamide is modified by a functional group dopamine and is endowed with a self-repairing property. The method comprises the following steps: firstly, modifying methacrylamide (DMA) with functional monomer dopamine, and performing photopolymerization, thereby preparing a series of hydrogel in different DMA contents; and adding aniline for performing in situ polymerization, thereby obtaining the self-repairing conductive hydrogel. The polyaniline hydrogel provided by the invention has a better self-repairing property and conductivity, and the property can be controlled by regulating the DMA content. The self-repairing conductive hydrogel prepared according to the invention is expected to be applied to a flexible super-capacitor with a self-repairing property.

The invention relates to a high-heat-resistance non-cured asphalt waterproof coating and a preparation method thereof and belongs to the technical field of waterproof coating. The high-heat-resistance non-cured asphalt waterproof coating mainly comprises: 150-220 parts of asphalt, 30-55 parts of softening oil, 0-20 parts of rubber, 0-12 parts of rosin resin, 0-15 parts of rubber powder, 0-14 parts of a plasticizer, 2-10 parts of oxidized polyethylene wax, 60-150 parts of a filler and 0-10 parts of a defoaming agent. The non-cured asphalt waterproof coating has the advantages that the heat-resistant temperature can reach 90 DEG C, the adhesive performance is good, the waterproof performance is excellent, the construction temperature range is wide, and cracks in the waterproof base can be automatically repaired. The coating can be used alone and can be also used in combination with asphalt rolled waterproof materials.

The invention discloses a preparation method of 3D printable iron ion double-crosslinked alginate-polyacrylamide acrylic acid high-performance hydrogel. The method comprises the following steps: firstly, evenly mixing sodium alginate, acrylamide, acrylic acid and a photo-initiator; pre-molding by using a mould or a 3D printing way; illuminating by using an ultraviolet lamp so as to realize copolymerization between an AAc monomer and an AM monomer; after the polymerization is completed, soaking a hydrogel scaffold into an Fe3<+> solution to form ionic cross-linking; finally, soaking the productinto deionized water for balancing so as to remove the unreacted monomers. Two networks are both Fe3<+> cross-linked, so that a common cross-linking point exists between the two networks, and the hydrogel is enabled to have excellent performance. In addition, the sodium alginate has good natural high polymer with good biocompatibility, and the viscosity is adjusted by adding a small amount of adhesive in a sol state, so that the hydrogel has good anti-collapse and rapid gelation characteristics; the hydrogel can be prepared into high porosity hydrogel with various complex structures by usinga 3D printing technology.

The invention discloses a preparation method for a self-repairing coating material and application thereof. The coating material comprises a material of a repairing layer located at an inner layer and the material of a surface layer located at an outer layer; urea-formaldehyde resin coated epoxy resin microcapsule (EP-UF microcapsule) is added into the repairing layer so as to provide an epoxy resin (EP) repairing agent; and the repairing agent repairs damages through the action with a curing agent in the surface layer. The self-repairing coating has a self-repairing function, the advantages of large adhesion force to a matrix, high surface hardness, good flame retardancy, excellent surface decorativeness and corrosion resistance, etc., and the characteristics of simple and convenient molding process, low technical requirements and good decorativeness and self-repairability, and is applicable to surface coating of a variety of resin-based composite plate materials.

The invention relates to an amphoteric gel polymer electrolyte with good performance and preparation and application thereof. A series of zwitterionic gel electrolytes are prepared in the invention. An amphoteric gel electrolyte with high mechanical strength and a conductivity of 8.2 mScm-1 can be prepared by controlling the ratio of monomers and the concentration of lithium salt. The interfacialresistance between an electrode and the electrolyte is greatly reduced by immersing an AC electrode into a monomer solution for in-situ polymerization. The AC electrode with the in-situ polymerized electrolyte has a large area capacitance of 297mF cm-2 at a current density of 0.8 mA cm-2 and can remain 70% after 7000 cyclic tests. Remarkably, the combined solid capacitor not only have an area energy density up to 6.6 mWh cm-2 and a power density up to 2.4 W cm-2, but also have a good self-healing property. The work of the invention provides a new idea for the field of gel electrolytes, and obtains a zwitterionic gel electrolyte having great application potential in energy storage equipment.

The invention discloses a high initial adhesion self-adhering waterproof roll which is characterized by comprising the following components in percentage by mass: 35-55% of petroleum asphalt, 5-25% of a softening agent, 5-25% of a modifier, 2-8% of an adhesive, 0.1-2% of a surfactant, 0.1-3% of an anti-aging agent and 5-20% of a filling agent.

The invention discloses a carbamido pyrimidone modified gelatin injectable self-healing hydrogel and a preparation method thereof. The method comprises the following steps: by taking gelatin as a main chain of a hydrogel polymer, introducing nucleophilic reaction into a side chain and acquiring UPy modified gelatin through quadrupolar hydrogen bond crosslinked carbamido pyrimidone (UPy); and meanwhile, adding ferric ion into the prepared UPy modified gelatin and forming ionic crosslinking, on the basis of a large amount of carboxylic acid groups of the main chain of the gelatin, thereby preparing a multiple hydrogen bond ion interacting double-physical cross-linking hydrogel. The preparation method disclosed by the invention has the advantages of low-cost easily acquired raw materials, simple process, mild preparation condition, low cost and equipment requirements, easiness in scale production and practical application and excellent application prospect. The prepared double-physical cross-linking hydrogel has an excellent self-repairing property and is injectable.

The invention discloses a dynamic polymer with a hybrid cross-linked network structure. The dynamic polymer contains dynamic covalent bond crosslinking and supermolecular hydrogen bond crosslinking, wherein the dynamic covalent bond crosslinking is realized by associative exchangeable covalent bonds, and the supermolecular hydrogen bond crosslinking is realized by hydrogen bond groups on the sidegroups and / or side chains of a polymer chain framework and hydrogen bond groups on the optional chain frameworks. The polymer integrates dynamic characteristics of a supermolecule and dynamic covalentcharacteristics of glass-like matter; supermolecular hydrogen bonds give stimulative responsibility, energy dissipation performance and self-repairing performance to the material; the associative exchangeable covalent bonds give structural stability and mechanical strength to the covalent cross-linked polymer, and because the associative exchangeable covalent bonds have dynamic reversibility, thepolymer has self-repairing performance, recycling performance, reproducibility and the like. According to the invention, the dynamic polymer with the hybrid cross-linked network structure can be widely applied to vibration-absorptive cushioning materials, impact-resistant protective materials, self-repairing materials, toughness materials, sealing elements and the like.

The present invention relates to a kind of M / MO x Composite hydrogen barrier coating, including stainless steel substrate and M / MO applied thereon x Composite coating. The transition layer M in the composite coating is Al, zr, Er, Y, Cr, Mn, Fe metal, the hydrogen barrier coating MO x It is the oxide of the transition layer metal. Composite hydrogen-resistant coatings are all prepared by reactive sputtering combined with negative bias technology, and can be a one-layer or multi-layer composite structure. The invention not only can effectively improve the binding force between the coating and the substrate, but also facilitates the improvement of the hydrogen resistance performance of the coating itself.

The invention discloses a dynamic polymer thermoplastic elastomer. A polymer molecule of the thermoplastic elastomer comprises a multi-segment structure with multiple end segments and a single middlesegment, wherein the end segments are mutually mixed and / or can independently form a crystalline phase and / or a phase incompatible with the middle segment so as to form end segment-based reversible split-phase physical crosslinking; and the middle segment is in a amorphous state, partial chain segments of the middle segment contain at least one side group and / or side hydrogen bond groups on side chains, and the side hydrogen bond groups can form inter-chain supermolecule hydrogen bond dynamic crosslinking. By virtue of the dynamic reversibility of hydrogen bonds, the dynamic polymer thermoplastic elastomer has good tenacity, energy dissipation, self-repairing property and the like and can be widely applied to the fields of self-repairing sealing components, sealants, flexible elastomers and the like.

The invention provides a no-washing foam hand disinfection solution and a preparation method thereof, and belongs to the technical field of hand disinfection solutions. The no-washing foam hand disinfection solution comprises a surface active agent, a foam stabilizing agent, ethanol, a sterilizing agent, an emollient and essence and is prepared through a simple process. The no-washing foam hand disinfection solution provided by the invention is an ethanol-containing no-washing foam hand disinfection solution, is broad-spectrum, antibacterial, especially suitable for medical workers, patients or family members in a hospital and has the advantages of good disinfection effect, long-acting bacteria inhibition and skin-protecting effect.

The invention discloses a self-repairing solid-state hybrid dynamic polymer. The self-repairing solid-state hybrid dynamic polymer contains sulfydryl-Michael addition bond dynamic covalent crosslinking and supermolecular hydrogen bond interaction, wherein the sulfydryl-Michael addition bond dynamic covalent crosslinking reaches above a gel point in at least one crosslinking network; sulfydryl-Michael addition bonds are obtained through sulfydryl-Michael addition reaction between sulfydryl groups and electron-deficient conjugate alkenes / enynes; the supermolecular hydrogen bond interaction contains hydrogen bond interaction involving at least one from side hydrogen bond groups, backbone hydrogen bond groups and other end hydrogen bond groups; with dynamic reversibility, the sulfydryl-Michaeladdition bonds and the supermolecular hydrogen bonds endow the self-repairing solid-state hybrid dynamic polymer with good plasticity, self-repairability, repeatability, reusability and recoverability and ensure that the self-repairing solid-state hybrid dynamic polymer can be widely applied to self-repairing materials, flexible materials, shape memory materials, energy storage device materials and the like.

The present invention discloses a weathering resistance modified asphalt waterproof coiled material, wherein a glass fiber felt or polyester felt is adopted as a reinforcement, a weathering resistance modified asphalt layer is coated on the upper surface of the reinforcement, a modified asphalt layer with the characteristic of easy hot melting is coated on the lower surface of the reinforcement, a mineral particle layer is covered on the upper surface of the weathering resistance modified asphalt layer, and a polyethylene film is covered on the lower surface of the modified asphalt layer with the characteristic of easy hot melting. According to the present invention, the weathering resistance modified asphalt waterproof coiled material has characteristics of long service life, high waterproof performance, low construction temperature, reduction of aging of the modified asphalt at the high temperature, and reduction of environment pollution, and can be used for industrial and civil building roofing waterproof projects at different temperatures in different regions.

The invention provides a preparation method of self-repaired waterborne polyurethane. The preparation method comprises the following steps: after thermal dehydration of macromolecular dihydric alcohol, stirring with diisocyanate for a reaction to obtain a first prepolymer; reacting the first prepolymer with an organic solvent, a micromolecular glycol chain extender containing furan rings, a hydrophilic chain extender, an end-capping reagent and a catalyst to obtain a second prepolymer; neutralizing the second prepolymer with a neutralizer, then reacting with a diamine chain extender in deionized water, and after high-speed dispersed emulsification, carrying out vaccum solvent removal to obtain a waterborne polyurethane emulsion; mixing the waterborne polyurethane emulsion with a maleinimide cross-linking agent, and carrying out a heating reaction to obtain the self-repaired waterborne polyurethane. The self-repaired waterborne polyurethane prepared in the invention can show good mechanical properties and self-repair performance under specific structure conditions, is high in emulsion stability, green and environmentally-friendly, can realize self-repairing under a heating condition, does not need a catalyst, and is mild in condition, simple in operation and good in repair effect.

The invention discloses a ballastless track-structured waterproof vibration-reducing flexible protecting structure and a paving method thereof. A waterproof linking layer and a buffer protecting layer are paved between the bottom of a ballastless track foundation plate and the top surface of a surface layer / bridge deck slab of a roadbed in a full-width manner. According to the ballastless track-structured waterproof vibration-reducing flexible protecting structure, by virtue of the linking layer and the buffer protecting layer which are paved on the full fracture surface, the overall stereoscopic water proofing and the integrality are realized; by regulating the dynamic modulus, the damping characteristic and the deformation adaptability of an asphalt concrete protecting layer by virtue of a special modifying enhancer, the rigidity matching and buffer vibration reducing functions are realized; and by enhancing the load diffusivity, the fatigue durability and the water damage resistance of asphalt concrete by virtue of the special modifying enhancer, the problems of premature failure, interlayer slurry extruding, disengaging, even frost heaving and the like of waterproof layers of existing ballastless track roadbeds are effectively solved, the integrality, the smoothness, the uniformity and the long-term stability of a lower base structure of a track are improved, and good and stable support is provided for a ballastless track plate, so that the fatigue life of the track plate is prolonged. The ballastless track-structured waterproof vibration-reducing flexible protecting structure is a long-lasting protection scheme.