13results about How to "Self-healing" patented technology

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.

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.

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 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.

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 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.