278results about How to "Promotes self-healing" patented technology

Multifunctional liquid rubber spray coating comprises components of A, B, wherein A component comprises liquid rubber asphalt emulsion whose solid content is 50-75%, wherein 2-65% rubber elusion content, 30-97% asphalt elusion content, 0.0-5.0% carbon black, 0.0-6.0% ultra-fine powder, 0.025-2.50% anion dispersing agent and 0.025-3.00% anion surface activator, which is waterborne spray coating, and B component is water solution which comprises 3.0-18.0% concentration calcii chloridum (89.0-99.2%), sodium chloride (0.50-4.0%) and composite aluminum iron polymer (0.3-7.0%). The two components are sprayed on the same basal plane through adopting a double-component airless spraying device to form a gelatin film with 0.5-4mm after 3-5 seconds solidification, which has the characteristics of strong bonding, temperature resistance, weather resistance, and excellent chemical stability, heat insulation and puncture resistance. The A component can be individually sprayed, or can be combined with the double components.

The invention provides vulcanized rubber with intrinsic self-repairing and recyclability characteristics as well as a preparation method thereof. The vulcanized rubber comprises components in parts by weight as follows: 100 parts of a rubber matrix, 5-30 parts of nano-silica, 5-50 parts of carbon black, 1-20 parts of small liquid-state molecules containing disulfide bonds, 0.1-1 part of a disulfide bond exchange reaction catalyst, 0.5-5 parts of zinc oxide, 0.5-3 parts of stearic acid, 0.1-2 parts of an antioxidant, 0.1-2 parts of an anti-aging agent, 0.5-2 parts of an accelerant and 1-30 parts of sulfur. According to the vulcanized rubber, raw materials are easy to obtain, the preparation method is simple, repeated self-repairing and recycling can be realized, service lives of rubber products can be prolonged, the environmental pollution can be reduced, and petroleum resources can be saved.

A metallic microcapsule containing a polymeric microcapsule having one or more polymeric precursors encapsulated therein; and a metallic shell enclosing a volume containing the polymeric microcapsule is disclosed. Also disclosed is a self-healing coating composition comprising (a) a film-forming binder; and (b) metallic microcapsules, the metallic microcapsules being the same or different and containing a polymeric microcapsule containing one or more polymeric precursors encapsulated therein; and a metallic shell enclosing a volume containing the polymeric microcapsule.

The invention discloses a waste lithium ion battery positive electrode material regeneration method, which comprises: discharging and disassembling a waste lithium ion battery to obtain a positive electrode current collector, shearing the positive electrode current collector into small thin sheets, and carrying out pyrolysis; separating the aluminum foil from the active substance by using a physical method; carrying out ball milling treatment on the waste positive electrode active substance, wherein the damaged part on the surface of the waste lithium ion battery positive electrode material can be stripped off through the ball milling so as to directly obtain the undamaged material, and the surface properties of the waste lithium ion battery positive electrode material with different damage degree can be converged so as to reduce the differences between the materials; after the ball milling grading, immersing the material in lithium hydroxide aqueous solution; and calcining to obtain the regenerated material. According to the present invention, the positive electrode material is regenerated by using the ball milling method, such that the method is simple, economic and effective, and has strong operability.

The invention provides a living body surface or inside applicable conductive self-healing hydrogel and a production method thereof. The production method of the conductive self-healing hydrogel comprises the steps of preparing aminated gelatin and oxidized sodium alginate, preparing a pyrrole-free self-healing hydrogel from the aminated gelatin and the oxidized sodium alginate, and further addingin pyrrole to prepare the conductive self-healing hydrogel. The applied materials are all biocompatible, and through inter-macromolecule reversible Schiff base structures, can achieve high self-healing performance without external stimuli and offset minor injuries produced during application of a flexible circuit; meanwhile, when patterned in different manners, the conductive self-healing hydrogelcan be applied to fields such as bio-electrodes, sensors and circuits.

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 relates to the technical field of waterproof materials and particularly relates to a preparation method of a nanoscale filler modified non-asphaltic waterproof material. The material comprises the following raw materials in parts by weight: 25-45 parts of rubber oil, 1-5 parts of hot melt adhesive elastomer, 1-11 parts of styrene-butadiene-styrene segmented copolymer, 1-8 parts of tackifying rubber, 4-16 parts of desulfurization rubber powder, 5-8 parts of high temperature resin, 10-25 parts of tackifying resin, 4-35 parts of nanoscale talcum powder and 1-2 parts of white carbon black powder. The preparation method comprises the steps of infiltrating the rubber oil into a proportioning reaction kettle; heating to 195-200 DEG C to remove water inside; adding desulfurization rubber powder to grind; adding the hot melt adhesive elastomer, the styrene-butadiene-styrene segmented copolymer and the tackifying elastomer; adding the high temperature resin and the tackifying resin to stir and dissolve; after half an hour, adding the nanoscale talcum powder and the white carbon black powder; then, uniformly stirring and cooling to prepare the waterproof material. The material has good self-curing and stripping performances.

The invention provides vulcanized rubber with intrinsic self-repairing and recyclability characteristics as well as a preparation method thereof. The vulcanized rubber comprises components in parts by weight as follows: 100 parts of a rubber matrix, 5-30 parts of nano-silica, 5-50 parts of carbon black, 1-20 parts of small liquid-state molecules containing disulfide bonds, 0.1-1 part of a disulfide bond exchange reaction catalyst, 0.5-5 parts of zinc oxide, 0.5-3 parts of stearic acid, 0.1-2 parts of an antioxidant, 0.1-2 parts of an anti-aging agent, 0.5-2 parts of an accelerant and 1-30 parts of sulfur. According to the vulcanized rubber, raw materials are easy to obtain, the preparation method is simple, repeated self-repairing and recycling can be realized, service lives of rubber products can be prolonged, the environmental pollution can be reduced, and petroleum resources can be saved.

The invention relates to a vacuum evaporating coating machine of films for aluminum thickened metalized capacitors. An evaporation source comprises a first aluminum crucible and a second aluminum crucible, wherein the first aluminum crucible is installed on one side wall of a vacuum evaporation coating chamber for synchronously performing an aluminum film evaporation coating step, and the second aluminum crucible is used for an aluminum reinforced layer evaporation coating step. After aluminum film evaporation coating, an aluminum reinforced layer can be quickly coated by vaporization on the surface coated with an aluminum film by vaporization; the two evaporation steps are synchronously performed; and the thickening of the reserved side of the aluminum metalized capacitor is realized. The machine has the greatest advantages that a natural oxide layer is formed, the capability of moisture resistance is high, the storage cycle is long, the natural repair performance is good, metalized films can produce Al2O3 after natural repair, and the parameters of the capacitor arrre not affected. Simultaneously, the machine improves the quality of the whole coating film, and simultaneously improves the evaporation efficiency, and solves the problem that the traditional vacuum evaporating coating machine at home and abroad can not prepare films of aluminum thickened metalized capacitors. Simultaneously, the vacuum evaporating coating machine of films for aluminum thickened metalized capacitors can also be used for producing films for pure aluminum metalized capacitors.

The invention discloses a hybrid dynamic polymer. The hybrid dynamic polymer comprises a cyclic organoborate bond produced by a reaction of an organoboric acid element with a diol element, and a supramolecular hydrogen bond formed under the condition of participation of a side hydrogen bond group, wherein the cyclic organoborate bond and the supramolecular hydrogen bond exist as polymeric chain joints and / or cross-linked chain joints for the dynamic polymer and are necessary conditions for the formation or maintenance of the structure of the dynamic polymer. Due to the dynamic reversibility ofthe cyclic organoborate bond and the supramolecular hydrogen bond, the dynamic polymer has self-repairing performance, reusability and recyclability; in addition, when the dynamic polymer of a specific formula receives an external force, the cyclic organoborate bond and the supramolecular hydrogen bond can be preferentially broken as sacrificial bonds, so the dynamic polymer presents good toughness. The dynamic polymer can be extensively used as a self-repairing material, a tough material, a sealing material, a sandwich adhesive, a force sensor, and the like.

The invention belongs to the technical field of medical surgical instruments and discloses a prepuce cutting anastomat which comprises a balance mover driving mechanism, a cutter pushing disc, a cover-type prepuce cutter and a balanus cap. A balance mover is connected with the balance mover driving mechanism, a cutter pushing disc sheath is in matched connection with the balance mover driving mechanism, the cutter pushing disc is arranged in the cutter pushing disc sheath and matched with the balance mover, the cover-type prepuce cutter is arranged on the cutter pushing disc, the balanus cap forms a balanus cavity, a moving rod seat is formed in the middle of the top wall of the balanus cap and on one side away from the balanus cavity, one end of a moving rod is fixed on the moving rod seat while the other end of the same is provided with an adjusting knob in a matched manner, the adjusting knob is matched with the balance mover driving mechanism, and an annular concave way is formed on the outer wall of a base portion of the balanus cap in an unfolded manner. The prepuce cutting anastomat is characterized by further comprising a blood-coagulation blood-stopping self-absorbing rubber ring which is embedded in the annular concave way and corresponds to a cutting edge. The prepuce cutting anastomat is simplified in structure and beneficial to manufacturing and assembling, time of a person receiving surgery can be saved, no scar can be left at a wound of the person receiving surgery, cost is lowered, and expense expenditure of the person receiving surgery is reduced.

The invention relates to sinkiang-arnebia-root-containing skin-care traditional Chinese medicine composition and a preparation method thereof. Effective components of the sinkiang-arnebia-root-containing skin-care traditional Chinese medicine composition are prepared from raw materials in parts by weight as follows: 30-70 parts of sinkiang arnebia roots, 15-45 parts of boswellia serrate, 5-15 parts of liquorice and 1-10 parts of rosemary leaves. The preparation method is characterized in that a method of stir-frying traditional Chinese medicines with honey is adopted, dissolution of effective substances is promoted, the effective preservation life of extracts is prolonged, besides, meadowfoam seed oil is taken as a solvent and performs a synergistic anti-oxidation function along with the rosemary leaves added to the meadowfoam seed oil. The invention further provides sinkiang-arnebia-root-containing skin-care cream. The sinkiang-arnebia-root-containing skin-care cream is mainly prepared from raw materials as follows: the traditional Chinese medicine composition, maize germ oil, beewax, cocoa seed butter, natural tocopherol, avocado oil, lavender essential oil, mango seed butter, lanolin and prinsepia utilis royle oil. The sinkiang-arnebia-root-containing skin-care cream is environment-friendly and safe and can effectively promote self-healing of the skin of infants and improve the skin barrier function.

The invention discloses a physical phase-split dynamic polymer. The physically phase-splitting dynamic polymer contains dynamic polymer molecules including hard segments and soft segments at the sametime. The hard segments of the dynamic polymer molecules are mixed with each other and / or independent to form crystal phases and / or phases incompatible with the soft segments, so phase-split physicalcross-linking or cross-linking and polymerization based on the hard segments is formed; the soft segments of the dynamic polymer molecules are amorphous; the dynamic polymer molecules contain at leastone boron-containing dynamic covalent bond and an optional hydrogen bond group; and the boron-containing dynamic covalent bond and the optional hydrogen bond group provide dynamic reversibility, so the physical phase-split dynamic polymer has good toughness, energy dissipation performance, self repair performance and other performance. The physical phase-split dynamic polymer is extensively applicable to the body protection of people during exercises, daily life and working, the body protection of the military police, explosion prevention, protection in airborne landing and aerial delivery, collision prevention of automobiles, anti-impact protection of electronic materials, self-repairing sealing members, sealants, tough elastomers, etc.

A self healing high energy glass capacitor is provided. The capacitor can have a glass layer with a top surface and a bottom surface. A top sacrificial layer can extend across the top surface and a bottom sacrificial layer can extend across the bottom surface. In addition, a top electrode can extend across the top sacrificial layer and a bottom electrode can extend across the bottom sacrificial layer. In some instances the glass capacitor has an energy breakdown of at least 6 joules per cubic centimeter.

The invention provides a lycium ruthenicum mill moisturizing and repairing aqua gel and a preparation method of the aqua gel. The moisturizing and repairing aqua gel is relatively convenient to use, and the aims of moisturizing and repairing the skin from inside to outside can be achieved during sleep. Lycium ruthenicum mill, yeast, seaweeds and a propolis extract liquid are added into the moisturizing and repairing aqua gel, so that the moisturizing and repairing aqua gel has the functions of moisturizing the skin at night in a long-acting way, supplementing amino acids, fully repairing a dry and dark sub-health state of the skin, arousing the water vigor of the skin, opening a permeation channel for permeating nutrient substances for the skin, accelerating the self-repair of the skin and strengthening the regeneration capability of the skin, so as to enable the skin to be restored to be moisturized and tender, compact, ruddy and glossy as well as rich in elasticity, and has the effects of freckle removing, whitening, antioxidation and senility preventing. Artificial color is not added into the lycium ruthenicum mill moisturizing and repairing aqua gel, and the lycium ruthenicum mill moisturizing and repairing aqua gel takes natural biological extracts as active substances, has the special effects and is obvious in effect after being used for a long time. Furthermore, the lycium ruthenicum mill moisturizing and repairing aqua gel is simple in preparation technology, excellent in quality, safe and free from side effects.

The invention discloses a dynamic polymer. The structure of the dynamic polymer contains dynamic covalent bonds and optional hydrogen bonds, wherein the dynamic covalent bonds are boron-oxygen-boron bonds which are composed of organic boron-oxygen-boron bonds, organic-inorganic boron-oxygen-boron bonds and inorganic boron-oxygen-boron bonds, or composed of organic boron-oxygen-boron bonds and organic-inorganic boron-oxygen-boron bonds, or composed of inorganic boron-oxygen-boron bonds and organic-inorganic boron-oxygen-boron bonds, or composed of organic-inorganic boron-oxygen-boron bonds; andall the inorganic boron-oxygen-boron bonds in the structure of the dynamic polymer are connected to the polymer via the organic-inorganic boron-oxygen-boron bonds and / or inorganic boron-oxygen-boronbonds. A plurality of the boron-oxygen-boron bonds and the optional hydrogen bonds in the structure of the dynamic polymer endow the dynamic polymer with good and hierarchical dynamic nature and allowthe dynamic polymer to have good toughness, buffering performance and self-repairing performance; and the dynamic polymer can be applied to fields like damping and buffering products, protection materials, sport protection materials, self-repairing materials, tough materials, stress-sensing materials, adhesives and sealing members.

The invention relates to carboxyethyl chitosan / polyvinyl alcohol self-healing hydrogel as well as a preparation method and application thereof, aiming at mainly solving the problems that the texture of existing chitosan-based hydrogel is relatively fragile and easy to break, and the safety of a used biological crosslinking agent is not good enough and the like. The hydrogel takes carboxyethyl chitosan as a base material; after the carboxyethyl chitosan is blended with polyvinyl alcohol, an oxidized sodium alginate-boric acid compound crosslinking agent is used for carrying out crosslinking toconstruct a novel multi-crosslinking network structure; the hydrogel has the advantages of excellent self-sealing performance, swelling performance, balanced moisture content, pH (Potential of Hydrogen) responsiveness and mechanical properties; and parameters including the degradability, the balanced moisture content, gel time, the swelling performance and the like can be flexibly regulated and controlled, so that the hydrogel can meet the requirements of different application scenes and applications.

A method for fabricating a grid-stiffened panel which incorporates a network of fluid channels and passageways into the ribs and face sheet is described. The method is comprised of a base tooling assembly, an expansion tooling assembly, a composite prepreg, plugs, a face sheet and a network of valves and pumps, wherein the prepreg is draped over said expansion tooling and assembled with the base tooling assembly to form a rib structure. Channel plugs are placed therein such that gaps between adjacent expansion tooling blocks are filled, and the entire rib structure assembly is autoclaved. The face sheet may be comprised of a plurality of layers, whereby channels are machined into the lower layer(s). The upper layer(s) are bonded to the lower layer(s) to seal the channels, and said face sheet is bonded to the rib structure.

The invention provides special equipment for multi-functional liquid rubber coating, belonging to the field of paint composites and relating to a paint composite based on natural rubber, synthetic rubber and asphalt and the coating composite of water-based latex as well as a system device for spraying ordinary surfaces and a technology for spraying liquids or other fluids by using a method. The special equipment for the multi-functional liquid rubber coating comprises a storage silo (1) for material A, a storage silo (10) for material B, a first pump (5), a second pump (14), a first multi-term output pressure return control valve (6), a second multi-term output pressure return control valve (15), a first spray gun tube nozzle and a second spray gun tube nozzle.

The invention belongs to the technical field of aluminum alloy profiles and particularly relates to an electrostatic spraying process for aluminum alloy profiles. The electrostatic spraying process for the aluminum alloy profiles comprises steps as follows: surfaces of aluminum alloys are polished, sprayed with water, washed and dried; a to-be-processed workpiece is degreased, sprayed with water and washed; the degreased workpiece is subjected to oil removal, sprayed with water and washed; the surface of the workpiece subjected to oil removal is sprayed with a diluted surface conditioner; the workpiece subjected to surface conditioning is phosphorized, the phosphorized workpiece is passivated, the surface of the passivated workpiece is sprayed with water and washed, the workpiece is dried and cooled, and the dried workpiece is obtained; the surface of the dried workpiece is sprayed with powdery paint in an electrostatic spraying manner by a spray gun and left to stay still, and the workpiece which is sprayed and left to stay still is obtained; the workpiece which is sprayed and left to stay still is conveyed to a baking room and then cooled to the room temperature. With the adoption of the electrostatic spraying process for the aluminum alloy profiles, the adhesive force, the hardness, the wear resistance, the acid resistance and other performance of surface coatings are remarkably improved, and the service life of the aluminum alloy profiles is prolonged effectively.

The invention provides an imidazole polyion liquid electrolyte and a preparation method and application thereof. The imidazole polyion liquid electrolyte comprises an imidazolium ionic liquid copolymer and a lithium salt mixture. The imidazolium ionic liquid copolymer is obtained by initiating an ionic liquid monomer free radical polymerization reaction of an imidazolium ionic liquid monomer and an acrylate monomer through an initiator. According to the an imidazole polyion liquid electrolyte, the flexibility of a molecular chain of the ionic liquid copolymer is regulated and controlled by adopting a flexible acrylate group, the transmission efficiency of ions in the polymer electrolyte is enhanced, meanwhile, the polymer electrolyte is endowed with excellent self-repairing performance andmechanical performance, and a new thought is provided for developing a solid flexible device with high safety performance and high specific energy density.

The invention discloses a cementitious capillary crystalline waterproofing agent, which contains the following raw materials in parts by weight: 50 parts of Portland cement; 25 parts of quartz sand; 9 parts of siliceous dust; 3 parts of calcium hydroxide; 2 parts of sodium bentonite; 1 part of kieselguhr; 3.9 parts of instant sodium silicate; 2.5 parts of aluminum potassium sulfate; 0.3 parts of zinc fluosilicate; 0.20 parts of sodium polyacrylate; 0.2 parts of hydroxypropyl methyl cellulose; 2 parts of zinc stearate; 0.5 parts of naphthalene water reducer; 0.2 parts of sugar lime; 0.1 parts of citric acid; and 0.1 parts of antifoaming agent. After the raw materials are weighed according to the proportions, the raw materials are ground into particles with grain size more than or equal to 200-mesh sieve in a ball mill to obtain the finished product. The invention has the advantages that the cost is low, the anti-permeability is good, the self-healing performance is good, the bonding power is strong, the steel bar corrosion is prevented, no toxicity and no harmfulness are caused and the construction is easy.

The invention discloses a moisturizing and repairing composition for stimulating cellular water channel protein production. The active ingredients of the moisturizing and repairing composition are composed of hydrolyzed viola tricolor extract, sodium hyaluronate, bio-saccharide gum-1, ceramide 3 and tripeptide-1 copper. The invention further provides application of the moisturizing and repairing composition in preparation of cosmetics with moisturizing and repairing effects and cosmetics comprising the moisturizing and repairing composition. According to synergistic effects of the various active ingredients, the moisturizing and repairing composition effectively stimulates cellular water channel protein production and achieves excellent effects of moisturizing and repairing skin barrier.

The invention discloses an additive for improving the self-repairing property of concrete cracks. The additive for promoting self-repairing of concrete is prepared by adopting a retarding type ion chelating agent and / or an inorganic salt type settling promotor; the retarding type ion chelating agent comprises organic acid salt and / or poly organic acid salt; the inorganic salt type settling promotor comprises sodium carbonate and / or lithium carbonate. According to the additive, the concentration of calcium ions is increased under the chelate action of the organic acid salt on the calcium ions; organic salt of the calcium ions can move with water, so that the concentration of the calcium ions in the cracks is increased; with the increase of the concentration of the calcium ions, hydration of components which are not hydrated in the concrete can be promoted, and self-repairing of the cracks is completed; generally, the organic acid salt has the retarding effect, and the retarding effect of the organic acid salt is balanced through addition of sodium carbonate and lithium carbonate.

The invention discloses nasal cavity washing liquid for treating rhinitis. The nasal cavity washing liquid comprises the following components in parts by mass: 50-100 parts of a traditional Chinese medicine extraction solution, 0.1-0.2 part of medium-molecular sodium hyaluronate, 0.1-0.2 part of micromolecular sodium hyaluronate, 8.5-9.5 parts of sodium chloride and 850-900 parts of distilled water, wherein the traditional Chinese medicine extraction solution is prepared from a traditional Chinese medicine composition. The traditional Chinese medicine composition comprises the following components: 100-150 parts of boat-fruited scaphium seeds, 150-220 parts of flos chrysanthemi, 20-60 parts of herba houttuyniae, 40-80 parts of radix bupleuri and 40-100 parts of herba menthae. The washing liquid is capable of cleaning the nasal cavity and is also capable of accelerating recovery of damaged nasal mucosa and rapidly curing rhinitis fundamentally.

The invention discloses a method for increasing the content of siamenoside I in momordica grosvenori. According to the method, jasmonic acid methyl ester is applied in a tissue culture or cultivation process of the momordica grosvenori. By virtue of the method, the yield of the momordica grosvenori siamenoside in the can be effectively increased. The method has the characteristics of fast effectiveness, low cost, simplicity in operation, and convenience in implementation, and the product has no toxicity or residue and the like, can meet the large-scale requirement of the momordica grosvenori siamenoside and has relatively high practicability and promotional values.

The invention relates to a calcium alginate microcapsule with high core material content. The calcium alginate microcapsule with high core material content comprises a polymer outer layer, a calcium alginate bracket and a core material repairing agent. Curable polymer resin is the core material repairing agent and fills interconnected channels of the calcium alginate bracket; an outermost layer isa cured polymer resin layer. The preparation method comprises the steps: firstly, primarily prepared calcium alginate microcapsules with high core material content are prepared by a sharp hole-coagulation bath method; secondly, the outer-layer polymer resin is cured to obtain the calcium alginate microcapsule with high core material content and with the structure. The microcapsule has water absorption and controllable volume swelling rate, has the content of the polymer core material of 65%-95%, and can be used for self-repairing of cracks in a cement matrix.

The invention relates to a preparation method of magnetic self-healing microcapsules, and belongs to the technical field of microcapsule preparation. The preparation method comprises the steps as follows: firstly, a silane coupling agent is hydrolyzed, molecules of the silane coupling agent simultaneously contain a reactive group capable of being chemically bonded with an inorganic material and a reactive group capable of being chemically bonded with an organic material, silanol is generated by hydrolysis and is bonded with an inorganic substance to form siloxane, the ferroferric oxide nanometer magnetic nanoparticles are dispersed in water for hydroxylating the material surface and react with silanol generated from the silane coupling agent through hydrolysis. Compatibility between the materials is improved due to the firm bonding; the magnetic particles are loaded into a curing agent, magnetic curing agent particles are loaded into a wall material through in-situ emulsion polymerization, and a microcapsule material is formed; after rupture or mechanical damage, a magnetic curing agent material is agglomerated due to mutual attraction between the magnetic particles, so that the contact area between the material and the curing agent is effectively increased, the material curing rate is increased, the self-healing process of the material is effectively improved, and rapid and effective self-healing of the material is realized.

The invention relates to the technical field of polyurethane synthetic materials, particularly to an explosion-proof heat-insulation TPU film for automobile glass, and a preparation method thereof. The explosion-proof heat-insulation TPU film is prepared from the following raw materials in percentage by mass: 70 to 88 percent of TPU master batch, 5 to 20 percent of polycarbonate, 5 to 10 percent of modified nano tin antimony oxide and 0.2 to 0.8 percent of an antioxidant. The explosion-proof heat-insulating TPU film of the invention has explosion-proof and scratch-resistant properties, is highin light transmittance and has heat-insulating and radiation-proof effects. The invention also provides a simple and feasible preparation method.

The invention relates to a self-healing injectable hydrogel dressing for restoring a diabetic wound as well as a preparation method and application thereof. The preparation method is simple, free fromresidue of organic solvent, mild in reaction conditions, simple in operation and low in raw material cost at the same time. Meanwhile, the experiment result shows that the self-healing injectable hydrogel dressing for restoring the diabetic wound has excellent temperature sensitivity, self-healing performance and injectable performance, and can significantly accelerate the healing of the diabeticwound.