24results about How to "Self-healing" patented technology

The invention relates to the technical field of coatings, in particular to a mesoporous thermal insulation coating with an infrared heat shielding function and a preparation method thereof.The preparation method comprises the steps that polyurethane-organic silicon emulsion is selected as a base material of the coating, chain extension is conducted on polyurethane prepolymer through a hydroxyl-terminated ternary flame-retardant chain extender, and high-flame-retardant and self-repairing polyurethane-organic silicon emulsion is prepared; hollow silicon dioxide microspheres are selected as a mesoporous material, and the mesoporous material is prepared by a two-step method of performing hydrolytic condensation on phenyltrimethoxysilane and then calcining to remove impurities. The preparation method comprises the following steps: modifying hollow silicon dioxide microspheres to prepare composite hollow silicon dioxide microspheres as a filler, growing cesium-doped tungsten bronze nanoparticles on the surfaces of the hollow silicon dioxide microspheres in situ by adopting a solvothermal method to obtain pretreated hollow silicon dioxide microspheres, and treating the pretreated hollow silicon dioxide microspheres with an epoxy silane coupling agent to obtain epoxidized hollow silicon dioxide. And then grafting a hydroxyl-terminated ternary flame-retardant chain extender by utilizing an epoxy-hydroxyl reaction.

The invention belongs to the technical field of data processing, and discloses a method for automatically arranging cache services, which comprises the following specific steps: step 1, a user applies for required capacity according to requirements, fills in related data and submits the next process; according to the method, high-reliability service capability is provided for middleware Redis service automatic arrangement in a production environment, a standard business application process is established, so that the process is standardized, application and configuration are standardized, safety, reliability and stability are achieved, the problems of configuration disorder and the like are avoided, the Redis versions are uniform and are 5.6, and the Redis versions are uniform and are 5.2. 6. Meanwhile, based on the work order process, butt joint with existing platform standardized services can be supported, pod is automatically created, services are started, clusters are established, template configuration, different capacities, specifications and copies of Redis services are generated in a customized mode according to different business scenes, services are provided, cost reduction and efficiency improvement are achieved, the server utilization rate is effectively increased, resources are reasonably used, and the system can be used immediately after being opened.

The invention discloses a cement-free Al2O3-SiC-C refractory castable and a use method of the cement-free Al2O3-SiC-C refractory castable. The invention relates to the technical field of refractory castable. The refractory castable is composed of aggregate, a matrix material and a water reducing agent. The aggregate is corundum particles and silicon carbide particles. The matrix material comprises corundum fine powder, alpha-Al2O3 micro powder, silicon micro powder, silicon carbide fine powder, ball pitch and various metal microcapsules. The use method of the refractory castable comprises the following steps: uniformly mixing the water reducing agent and the matrix material to obtain a premixed matrix material; uniformly stirring the aggregate and the premixed matrix material, adding water, and stirring to obtain slurry; pouring the slurry into a mold, and performing vibration molding and maintenance. The refractory castable disclosed by the invention is high in normal-temperature strength, excellent in medium-temperature and high-temperature mechanical properties, good in erosion resistance and thermal shock resistance, long in service life, energy-saving and environment-friendly; and in the using process, water adding amount is small, fluidity is good, production is stable, and the agent is suitable for molten iron grooves, ladle working layers and other parts.

The application discloses a preparation method of an aluminum shielding tape surface conductive self-repairing coating. First, a clean aluminum shielding tape surface is obtained through an in-situ reduction / etching pretreatment method based on an aluminum salt / fluoride salt compound solution; second, a conductive / self-repairing dual-effect enhancer is prepared and introduced into a conductive / self-repairing coating synthesized by polyether amine, diisocyanate, a multiple active amine compound, p-xylene glycol and aniline; finally, the solid content of the coating is adjusted and sprayed on the clean aluminum shielding tape surface to obtain the conductive self-repairing coating. The application converts the Al2O3 film on the aluminum surface into a new substance Al, simultaneously constructs a regular porous structure, increases the bonding strength of the film layer, improves the adaptability and self-repairing efficiency of the coating in cable manufacturing and subsequent operation through the construction of a coating with multiple dynamic hydrogen bonds and imine bond synergistic effect, and realizes good conductive enhancement effect and rapid thermal self-repairing purpose of the coating by using isocyanate modified carbon nanotubes as the enhancer.

The application discloses an antioxidant composite ceramic aerogel and a preparation method thereof, and belongs to the technical field of composite ceramic aerogels.The main body of the antioxidant composite ceramic aerogel is a silicon nitride aerogel, the nanostructure of the silicon nitride aerogel is one of one-dimensional silicon nitride nanowires and two-dimensional silicon nitride nanobands or a combination of the two nanostructures, and a mullite coating and a copper-nickel metal coating are sequentially coated on the nanostructure of the silicon nitride aerogel from inside to outside.The application can solve the technical problem that the prior art cannot prepare silicon nitride ceramic aerogels which can stably serve in a high-temperature oxygen environment at low cost and in batches.

The invention discloses a self-repairing mute tire and a preparation method thereof, and relates to the technical field of tires, the self-repairing mute tire comprises a tire body, and a self-repairing rubber layer and a mute material which are sequentially attached to the inner wall of the tire body from inside to outside; the self-repairing adhesive layer is prepared from the following components: epichlorohydrin rubber, acrylate rubber, a rosinyl phenyl phosphine oxide isoxazolyl functional polymer, 4, 4-chloroformyl phenyl ether, a catalyst, 2, 2-bis [4-(4-aminophenoxy) phenyl]-1, 1, 1, 3, 3, 3-hexafluoropropane, trithiocyanuric acid, a filler, an accelerant TMTD (Tetramethylthiuram Disulfide) and an auxiliary agent; the rosinyl phenyl phosphine oxide isoxazolyl functional polymer comprises structural units introduced through a condensation polymerization reaction of the following monomers: glycerol triabietate, bis (4-carboxyl phenyl) phenyl phosphine oxide and 3, 5-isoxazoledicarboxylic acid. The tire is remarkable in self-repairing effect, good in mute performance, sufficient in performance stability and long in service life.

The invention relates to the technical field of medical biological materials, and discloses a mussel mucin-chondroitin sulfate composite hydrogel and a preparation method and application thereof, and the preparation method comprises the following steps: respectively preparing a mussel mucin aqueous solution and a chondroitin sulfate aqueous solution; the mass volume concentration of the mussel mucoprotein aqueous solution is 1%-10%, the mass volume concentration of the chondroitin sulfate aqueous solution is 1%-10%, the mass ratio of the mussel mucoprotein to the chondroitin sulfate is 3: 1-1: 3, the two solutions are mixed and stirred or oscillated under the conditions that the temperature is 4-37 DEG C and the pH value is 7.0-9.0, a cross-linking reaction is conducted, and hydrogel is formed; the cross-linking mode is physical cross-linking, chemical cross-linking or physical-chemical dual cross-linking; according to the invention, excellent tissue adhesion, injectability, self-healing property and biodegradability are realized, cell adhesion and proliferation can be effectively promoted, and the gel is suitable for various medical beauty scenes such as skin filling, wound repairing and anti-aging nursing.

This invention discloses a near-infrared responsive self-healing coating and its preparation method, relating to the field of functional coating technology. The near-infrared responsive self-healing coating, by weight, comprises the following components: 100 parts of matrix resin, 1-3 parts of near-infrared absorber, 10-20 parts of self-healing agent, 8-15 parts of curing agent, 1-3 parts of dispersant, 0.5-2 parts of defoamer, and 20-30 parts of solvent. This invention utilizes a specific structured organic molecular near-infrared absorber, which exhibits good compatibility with the matrix resin and achieves uniform dispersion at the molecular level. This avoids the problem of easy agglomeration in traditional inorganic photothermal materials, while significantly improving photothermal conversion efficiency and solving the deficiency of insufficient photothermal conversion capability of conventional organic dyes.

The present invention relates to the technical field of plates, and in particular to a highly wear-resistant and deformation-resistant PETG composite plate and a preparation method thereof. The highly wear-resistant and deformation-resistant PETG composite plate of the present invention comprises the following components in parts by weight: 30-50 parts of PET, 10-20 parts of modified PETG, 40-50 parts of nano calcium carbonate, 1-3 parts of toughening agent, 0.5-1 parts of antioxidant, 1-2 parts of lubricant, 1-1.5 parts of chain extender, 0.5-1 parts of polyamide, and 8-12 parts of flame retardant; the highly wear-resistant and deformation-resistant PETG composite plate has good wear resistance, impact resistance, water resistance and tensile properties; and has excellent deformation resistance, which lays a solid foundation for the wide application of PETG plates.

The utility model discloses a layered water guide and anti -infiltration structure for tunnel, including tunnel main part, the outside of tunnel main part is provided with the out period support, the bottom of out period support is connected with water guide structure, one side of water guide structure is provided with anti -infiltration layer, the bottom of anti -infiltration layer is connected with secondary lining, and the bottom of tunnel main part is installed with drainage pipeline and filter screen pipe, and water guide structure includes water guide groove, fast water guide layer, filter layer, fine filtration pressure stabilization layer and closed layer, and anti -infiltration layer includes main anti -infiltration layer, honeycomb leak layer and inner lining sealing layer, through the out period support, water guide structure, anti -infiltration layer are arranged in tunnel main part and secondary lining between in proper order, form multifunctional composite interlayer structure, realized " hierarchical water guide - filter pressure stabilization - closed anti -infiltration " integrated function streamline, compared with the existing blind ditch single path drainage structure, can improve seepage collection speed and export efficiency greatly, avoids the structural damage and inner lining leakage risk caused by water pressure accumulation.

This invention relates to a mildly photothermal-releasing, injectable, self-healing hydrogel dressing for wound healing after oral cancer surgery. The hydrogel dressing is prepared by loading NO donor-loaded nanoparticles into a thermosensitive ABA triblock copolymer. This hydrogel dressing possesses thermosensitivity, injectability, self-healing properties, mild photothermal antibacterial activity, controlled NO release, blood compatibility, and biocompatibility. It can promote tissue regeneration, angiogenesis, and cell migration in postoperative wounds after oral cancer surgery, making it an ideal material for postoperative wound management in oral cancer patients.

The present application relates to a kind of polyurethane materials with photothermal self-repairing performance, the polyurethane material is prepared by diisocyanate, macromolecular dihydric alcohol, small molecule dihydric alcohol chain extender, photothermal agent, catalyst, solvent, it is used as 3D printing material. When 3D printing is carried out using the material, the photothermal performance of the material is used, the deposited layer is irradiated with light along the printing path in the FDM printing process, to improve the temperature of previous deposited layer, solve the problem of previous deposited layer rapid cooling in prior art;The temperature of previous deposited layer is improved, so as to activate the self-repairing performance of 3D printing material, then enhance the interlaminar bonding strength between adjacent filaments, and finally realize the mechanical enhancement and mechanical isotropy of FDM printing product.The polyurethane material of the present application helps to widen the practical application of FDM printing product in engineering field.

The invention discloses a lining water treatment membrane with a self-repairing effect and application thereof. The lining water treatment membrane comprises a lining substrate with a porous structure and a water treatment separation membrane layer arranged on the lining substrate, the lining substrate comprises a supporting layer and a combining layer, the supporting layer comprises a lining structure composed of first fiber filaments, and the combining layer comprises a blocking area formed by the first fiber filaments and second fiber filaments which are arranged in a staggered mode; the diameter of the first fiber yarn is larger than that of the second fiber yarn, and a plurality of pits are formed in the second fiber yarn; a part of area of the water treatment separation membrane layer is positioned in the blocking area and is in contact with the first fiber yarns and the second fiber yarns in the blocking area respectively; the preparation method comprises the following steps: applying a membrane casting solution of the water treatment separation membrane to the lining substrate, and carrying out coagulating bath exchange phase separation, the lining water treatment film can be self-repaired after the surface of the film is damaged, a chemical improver does not need to be additionally added to modify a film layer on the surface, and the lining water treatment film is simple and easy to operate and high in economical efficiency.

The invention relates to a gel biological material, in particular to an exosome-loaded electroactive hydrogel dressing and a preparation method thereof. The preparation method comprises the following steps: adding pyrrole into a phytic acid aqueous solution, stirring for reaction, mixing with an ammonium persulfate solution to promote gelation, and removing the residual reaction reagent to obtain conductive hydrogel; and dropwise adding exosome extracted from bone marrow mesenchymal stem cells to the surface of the conductive hydrogel to enable the exosome to freely permeate, thereby obtaining the exosome-loaded electroactive hydrogel dressing. The gel has biocompatibility, is soft in texture, rich in moisture and strong in adhesion, and has self-healing property. As a highly conductive thin film, the thin film is attached to injured nerves of a diabetes model, is automatically wrapped in a tubular structure with matched size, and forms a stable and intimate electric bridge with electrical protogenic nervous tissues to promote axonal regeneration and remyelination.

This invention discloses a modified liquid metal and its use in preparing liquid metal patterns, belonging to the field of metal pattern preparation technology. The modified liquid metal of this invention is composed of liquid metal and sodium magnesium lithium silicate in a mass ratio of 4-10:1. The addition of sodium magnesium lithium silicate significantly reduces the surface tension and improves the adhesion of the liquid metal, facilitating the formation of fine and stable micropatterns on the substrate surface. The liquid metal micropatterns prepared using the modified liquid metal of this invention exhibit excellent conductivity under bending and stretching conditions, showing promising application prospects in the field of flexible sensors.

The invention relates to the technical field of rapid road repairing methods, in particular to a rapid base layer repairing method for road collapse risk, which comprises the following steps: firstly, constructing a gravel skeleton; secondly, preparing a cement-based grouting material; then, the cement-based grouting material is injected into the gravel framework; then, the grouted structure is maintained; and finally, surface treatment is conducted, and perfect balance between the repairing quality and the construction efficiency is achieved. The whole repairing process can be completed in an extremely short time through rapid construction of the gravel framework and rapid curing of the high-performance grouting material, and the influence on traffic is greatly reduced. And meanwhile, the high-strength characteristic of the composite structure ensures that the repairing quality is not influenced by rapid construction.

The application provides a self-repairable EVA adhesive film and a preparation method thereof, and relates to the technical field of solar photovoltaic module packaging. The self-repairable EVA adhesive film realizes a double self-repairing mechanism of photovoltaic module packaging adhesive film through Diels-Alder reaction group grafting and silane coupling agent microencapsulation technology, and the double self-repairing mechanism includes physical rearrangement repair and chemical bonding repair. While maintaining high light transmittance (>= 90%) and bonding strength (>= 96 N / cm), the aging resistance (Delta YI <= 3) and service life of the EVA adhesive film are significantly improved, and the problems that the traditional EVA adhesive film is prone to aging and micro-damage caused by mechanical stress in extreme environments are solved. The preparation process of the application is compatible with the existing production line, and has high industrial application value.

The invention discloses a fluorescent polyolefin adhesive as well as a preparation method and application thereof, and relates to the technical field of high polymer materials and adhesives. The fluorescent polyolefin adhesive comprises polyolefin elastomer grafted allyl alcohol glycidyl ether, hydrophobic group substituted binary acid, hydrogenated hydrocarbon resin, an AIE fluorescent material and a transesterification catalyst. Through an integrated molecular design and a simple preparation process, the self-healing performance, the fluorescent tracing performance, the corrosion resistance and the high bonding performance are efficiently integrated in a single material system, complex multi-step processing or post-processing is avoided, and the feasibility requirements of industrial production and application are met. The adhesive material can fundamentally change the traditional mode of'silent failure 'of an adhesive joint structure, strides towards a new normal form of'intelligent sensing, self-repairing and long-acting protection', and has great application value in the fields of new energy automobile battery sealing, ocean engineering protection, precise electronic packaging, high-end intelligent equipment manufacturing and the like.

This invention belongs to the field of data processing technology, specifically relating to a consumer data report generation system based on machine learning. This system aims to solve technical challenges such as insufficient depth in feature mining of large-scale heterogeneous consumer data and homogenization of report generation. The system includes: a multi-source heterogeneous data adaptive ingestion module, a nonlinear feature automated calculation engine, a heterogeneous behavioral semantic association graph construction unit, an incremental machine learning inference center, and a multi-dimensional logical adaptive report generation platform. Through standardized mapping, nonlinear feature extraction, and semantic graph modeling, combined with incremental model inference, the system can automatically match narrative logic according to needs and generate structured, visual reports. This invention achieves deep perception and dynamic real-time processing of massive amounts of consumer data, improving report production efficiency and business insight, and providing an efficient and adaptive solution for consumer decision-making.

The invention discloses a self-repairing acrylate photosensitive resin for 3D printing and a manufacturing method thereof, the self-repairing acrylate photosensitive resin comprises filler nanocellulose and polymer matrix acrylate, the nanocellulose has rich surface hydroxyl and a nano-sized structure, and the polymer matrix acrylate is a polymer matrix acrylate. The self-repairing performance of the self-repairing acrylate photosensitive resin is endowed on the basis of an interface hydrogen bond network between a hydroxyl group on the surface of the nanocellulose and a hydroxyl group at the end of an acrylate molecular chain. The self-repairing acrylate photosensitive resin can be printed and formed by using DLP-3D printing equipment. The problems of microcracks, scratches, cracks and the like inevitably generated in the use process of the 3D printing elastomer due to external force are solved, and the 3D printing elastomer has the characteristics that the raw materials are derived from biomass, the 3D printing elastomer is green and environment-friendly, the preparation process is simple, and the 3D printing elastomer has self-repairing capability and relatively good mechanical property and self-repairing performance.

The invention relates to a polyurethane material with photo-thermal self-repairing performance, the polyurethane material is prepared from diisocyanate, macromolecular dihydric alcohol, a micromolecular dihydric alcohol chain extender, a photo-thermal agent, a catalyst and a solvent, and the polyurethane material is used as a 3D printing material. When the material is used for 3D printing, the photo-thermal performance of the material is utilized, a deposition layer is irradiated with light along a printing path in the FDM printing process, so that the temperature of a previous deposition layer is increased, and the problem of rapid cooling of the previous deposition layer in the prior art is solved; the temperature of a previously deposited layer is increased, so that the self-repairing performance of the 3D printing material is activated, the interlayer bonding strength between adjacent filaments is enhanced, and finally mechanical enhancement and mechanical isotropy of an FDM printing product are achieved. The polyurethane material disclosed by the invention is beneficial to widening the practical application of FDM printed products in the engineering field.

This invention belongs to the field of organic optoelectronic technology, and discloses a class of polymer photoactive materials containing thermally desorbable functional groups and flexible segments, as well as their preparation and application. The structure of the polymer photoactive material containing thermally desorbable functional groups and flexible segments is shown in Formula I below. In Formula I, at least one unit among the D unit, A unit, and flexible segment contains a thermally desorbable group, and the number of thermally desorbable groups on each unit containing the thermally desorbable group is 1 to 4, relatively independently. These polymers have good solubility and can be processed into smooth films through solution processing. Furthermore, at the thermal desorption annealing temperature (T... a Additional heat treatment of the resulting film leads to the removal of thermally desorbed groups, thereby eliminating its strong solubility in organic solvents and making it a solvent-resistant layer that will not be corroded by the solution processing of the remaining layers, thus providing a guarantee for subsequent lamination processing.

The invention relates to the technical field of flanges, in particular to a flange with multiple sealing structures, which comprises a flange plate body, a plurality of bolt holes are formed in the surface of the flange plate body, a plug ring is integrally formed on the inner ring surface of the flange plate body, and a sealing sleeve sleeves one end, away from the flange plate body, of the plug ring. A traction sleeve is integrally formed on the inner ring face of the sealing sleeve, a first sealing gasket is integrally formed at the end, away from the sealing sleeve, of the traction sleeve and fixed to the surface of the flange plate body, a plurality of through holes are formed in the first sealing gasket, bolt fastening sleeves are integrally formed in the through holes, and the bolt fastening sleeves are inserted into the bolt holes. The flange with the multiple sealing structures has the beneficial effects that the plug ring is integrally formed on the inner ring surface of the flange plate body, the preformed groove is formed in the outer ring surface of the plug ring, and the sealing sleeve is arranged and fixed in a sleeving mode, so that the sealing sleeve can be clamped between the plug ring and a pipeline to generate elastic deformation; therefore, the sealing performance after the flange plate body is connected with the pipeline is enhanced.

The invention relates to multifunctional in-situ repair hydrogel based on a modified dermal matrix as well as a preparation method and application of the hydrogel. The hydrogel is formed by crosslinking a first polymer precursor and a second polymer precursor through dynamic covalent bonds of boric acid ester, the first polymer precursor is carboxymethyl chitosan grafted with a phenylboronic acid group and an epsilon-polylysine chain segment; the second polymer precursor is a soluble acellular dermal matrix which is grafted with a 3, 4-dihydroxyphenyl propionic acid group and is subjected to enzymolysis treatment. The hydrogel disclosed by the invention has good biocompatibility, moldability and potential self-healing capability.