54 results about "Neodecanoic acid" patented technology

The invention relates to the field of coatings, and discloses a biomass-based oil-resistant coating and a preparation method thereof, the coating comprises an additive solution, a paraffin solution and gallic acid; the paraffin solution is obtained by dissolving paraffin in absolute ethyl alcohol; a preparation method of the additive solution comprises the following steps: mixing chitosan powder and an acetic acid aqueous solution to prepare a chitosan solution, ultrasonically dispersing functionalized montmorillonite in deionized water to prepare a suspension, then uniformly mixing the chitosan solution and the suspension, adding modified phytic acid prepared by grafting phytic acid and ethylene glycol diglycidyl ether, and stirring to react; the functional montmorillonite is prepared by modifying modified montmorillonite with titanium dioxide and zinc oxide, then activating the modified montmorillonite with 3-aminopropyltriethoxysilane and succinic anhydride, and then carrying out a ring-opening reaction with glycidyl neodecanoate. The coating prepared by the invention has high water resistance, the Kit oil-proof grade is kept at grade 12, and the oil-proof performance of the coating is greatly improved. Meanwhile, the antibacterial performance, the tensile index and the ultraviolet aging resistance are relatively high.

The present invention relates to a Glycol based antifreeze liquid composition for combustion engines, electric vehicles, industrial and submersible motors. More particularly, the present invention relates to a Glycol based corrosion-inhibited antifreeze liquid composition, the said liquid composition comprises glycols, deionized water, alkali molybdate, alkali metal octoate or neodecanoate, rare-metal octoate or neodecanoate, dyes. The liquid composition of the present invention is environment-friendly, ready to use composition that will improve efficiency of combustion engines, industrial and submersible motors to the great extent and also provides excellent corrosion protection to the internal parts of the cooling system of combustion engines, electric vehicles and industrial and submersible motors.

The invention discloses a low-temperature cured polyurethane varnish resin for automobiles and a preparation method thereof, and belongs to the technical field of chemical product processing, the low-temperature cured polyurethane varnish resin comprises a resin matrix and a curing agent, the resin matrix comprises a component A and a component B. The component A comprises a crosslinking system A1, a crosslinking system A2 and an auxiliary agent, the component B is a curing activity regulator of a double-crosslinking system of the crosslinking system A1 and the crosslinking system A2; the curing agent is diethyl malonate blocked isocyanate; the cross-linking system A1 is mainly composed of hydroxy acrylic resin containing beta-diketone metal ligand and a bismuth neodecanoate catalyst; the bismuth neodecanoate catalyst and a beta-diketone metal ligand form a bismuth complex; the cross-linking system A2 is mainly composed of hydroxyl acrylic resin containing alkoxy silane groups; the component B is prepared from poly (decane-4, 6-diyne diacid) modified nano porous fibers and a silane coupling agent. The service life of the varnish is prolonged on the basis of ensuring low-temperature rapid curing.

The invention discloses a method for preparing stannous neodecanoate through one-step synthesis, and belongs to the technical field of chemical product preparation methods. The method comprises the following steps: adding neodecanoic acid, stannous oxide and water into a reaction container according to a ratio, uniformly stirring, sealing the reaction container, and heating under reduced pressure until the temperature is greater than or equal to 105 DEG C to promote the reaction of neodecanoic acid and stannous oxide to obtain synthetic slurry; the synthetic slurry is divided into three layers, the upper layer is unreacted neodecanoic acid with the specific gravity of 0.92, the middle layer is water with the specific gravity of 1, and the lower layer is stannous neodecanoate slurry with the specific gravity of 1.25; and carrying out liquid-solid separation on the stannous neodecanoate slurry at the lower layer to obtain a liquid which is a stannous neodecanoate intermediate product, and carrying out reduced pressure distillation dehydration to obtain a stannous neodecanoate product. Other impurities are not added in the reaction process of the method, and the produced stannous neodecanoate product is high in purity and good in quality. The production process is short, unreacted residues are unreacted stannous oxide which can be recycled, the raw material loss is small, no waste gas is generated in the reaction process, and the method is energy-saving and environment-friendly.

The present invention relates to the technical field of catalysts, and particularly relates to a rare earth neodecanoate catalyst for polymerization, its preparation method and application. The rare earth neodecanoate catalyst comprises the following components: neodymium neodecanoate, a halogen-containing compound, an alcohol compound, a conjugated diene and an auxiliary agent. The auxiliary agent comprises a mixture of triphenyl(methyl)-tetrakis(pentafluorophenyl)borate and phenyl-dimethylamino-tetraphenylborate, and the molar ratio of the two is 2-4:1. The polybutadiene product prepared by the rare earth catalyst of the present invention has a high cis structure content, molecular weight and yield, and at the same time has a narrow molecular weight distribution, the raw materials are easy to obtain, and the cost is low.

The invention relates to the technical field of neodecanoic acid preparation, and provides a high-purity neodecanoic acid preparation method which comprises the following steps: S1, adding a catalyst into a high-pressure kettle, introducing CO, injecting nonene, and reacting to obtain a reaction solution; s2, mixing the reaction liquid with an extraction agent, feeding the mixture into an extractive distillation tower, and performing extraction and separation to obtain a first organic phase; s3, adding water into the first organic phase, washing and separating to obtain a second organic phase; s4, adding an alkaline additive into the second organic phase, layering to obtain an upper-layer organic phase, and carrying out reduced pressure distillation on the upper-layer organic phase to obtain neodecanoic acid; in the step S1, the raw materials of the catalyst comprise supported cobalt oxide and concentrated sulfuric acid; the supported cobaltous oxide is prepared from the following raw materials: water-soluble cobalt salt and boron nitride; in the step S2, the extraction agent comprises 1, 2-propylene glycol. According to the technical scheme, the problem of low purity of neodecanoic acid in related technologies is solved.

The present invention provides fuel borne catalyst compositions for oxidative soot removal comprising a Ce (III) long-chain carboxylate in an organic solvent. Preferred embodiments provide a cerium composition for use as a soot reduction catalyst system, comprising: Ce (III) neodecanoate; Ce (III) carboxylate, wherein said carboxylate has a general formula RCOO-, wherein R is H or a Cl to C4 alkyl; neodecanoic acid; and an organic solvent.WO

The application belongs to the technical field of fine chemical synthesis, and particularly relates to a device and method for continuously preparing 1,5-pentamethylene diisocyanate through thermal cracking. 1,5-pentamethylene diurethane and bismuth neodecanoate are mixed, preheated, and then pumped into a reaction kettle containing tetraethylene glycol dimethyl ether to perform a thermal cracking reaction. The obtained reaction liquid is subjected to primary purification, and then secondary purification is continuously performed to obtain 1,5-pentamethylene diisocyanate. The application provides a device and method for continuously preparing 1,5-pentamethylene diisocyanate through thermal cracking. The preparation process adopts a non-phosgene method, is green and environmentally friendly, has small safety hazards, has mild reaction conditions, and is simple in process. The yield of 1,5-pentamethylene diisocyanate reaches more than 80%, and the purity reaches 99%.

The invention relates to the technical field of polymer composite materials, in particular to a high-moisture-resistance polyvinyl acetal composite film as well as a preparation method and application thereof. The composite film comprises polyvinyl acetal resin, and hydroxyl of the polyvinyl acetal resin is bonded with carboxyl of neodecanoic acid through an ester bond; on the basis that the mass of the polyvinyl acetal resin is 100 parts, the addition amount of the neodecanoic acid is 1-10 parts. According to the preparation method, carboxyl of neodecanoic acid and hydroxyl of polyvinyl acetal resin are bonded in a covalent bond mode through catalytic esterification reaction, so that the hydrophilic property of the resin is changed on the molecular level, and the moisture resistance of the composite film is remarkably improved. Meanwhile, the composite film still keeps excellent high transparency and stable adhesive property, and has good mechanical properties. A covalent bonding strategy is adopted, neodecanoic acid is grafted to a polyvinyl acetal molecular chain, a stable hydrophobic shielding layer is formed, migration or precipitation of auxiliaries is effectively prevented, and therefore the long-term stability of the moisture resistance of the composite film is ensured.

The invention discloses a preparation method of an organic cobalt salt for improving the product strength and elongation of rubber, and belongs to the technical field of organic cobalt salt preparation, the preparation method comprises the following steps: S1, raw material preparation: 38-42 parts of cobalt hydroxide, 42-46 parts of neodecanoic acid, 42-46 parts of pivalic acid, 12-14 parts of propionic acid, 40-50 parts of n-butyl propionate and 18-22 parts of zinc oxide; s2, raw material pretreatment: cobalt hydroxide: performing recrystallization purification operation on cobalt hydroxide; the purity of neodecanoic acid, pivaloic acid and propionic acid is further improved by adopting a rectification method; n-butyl propionate; on the basis of a conventional cobalt neodecanoate formula, the optimal proportion of various organic acids is adjusted to meet the optimal strength and elongation product effect of the rubber, and meanwhile, by adjusting the optimal proportion of various organic acids and adding an optimal functional aid, the optimal strength and elongation product effect of the rubber is met.

The invention discloses a conductive silver paste material for ink-jet printing, a preparation method of the conductive silver paste material and a passive element. The conductive silver paste material is prepared from the following components in percentage by mass: 31%-48% of a conductive phase, 0.5%-2% of a dispersing agent, 0.5%-2% of an adhesive, 0.5%-2% of an adhesion promoter and the balance of a solvent, in the conductive phase, the mass of the first silver powder accounts for 25%-35% of the total mass of the conductive silver paste material, the mass of the second silver powder accounts for 5%-10% of the total mass of the conductive silver paste material, and the balance is the third silver powder; and the adhesion promoter is bismuth neodecanoate. The conductive silver paste material provided by the invention is low in viscosity, can be co-fired with low-temperature co-fired ceramic, and provides an innovative solution for manufacturing of next-generation high-frequency communication devices.

The invention discloses a high-lubricity environment-friendly cutting fluid compatible with various materials. The high-lubricity environment-friendly cutting fluid comprises the following components in percentage by weight: 0.4-1% of sodium xylene sulfonate, 2-4% of sebacic acid, 5-8% of neodecanoic acid, 8-15% of 1720 polyether, 4-10% of sasol FS40 polyether, 5-12% of Mili self-emulsifying ester 18485, 1-4% of extreme pressure antiwear agent, 0.4-1.2% of cation, 8-18% of triethanolamine, 3-6% of CH020, 1-3% of nano-copper, 0.05-0.15% of defoaming agent and the balance of water. Compared with the prior art, the machining of various metal materials can be met, the application range is wide, and good rust resistance and corrosion resistance are achieved.

The present application relates to a kind of water-based tensile coating composition with modified bio-based filler and its preparation method and application, including the following weight parts of components: water-based anionic polyurethane 70-85 parts;Deionized water 5-7 parts;Dispersant 1-2 parts;Modified bamboo powder 3-5 parts;Wetting and leveling agent 0.1-0.3 parts;Polyamide wax 1-1.5 parts;pH regulator 0.5-1 parts;Film forming aid 0.5-1 parts;Defoaming agent 0.3-1 parts.Compared with prior art, the present application uses modified bamboo powder, a renewable bio-based material, to replace non-renewable inorganic fillers such as calcium carbonate and talc. After the coating is discarded, it can be naturally degraded without environmental residual pollution. At the same time, deionized water is used as the main solvent, and low VOC film forming aids are used to significantly reduce VOC emissions. The polyurethane synthesis uses environmentally friendly and non-toxic bismuth neodecanoate catalyst to replace highly toxic tin catalysts. From raw materials to the whole preparation process, green environmental protection is achieved, and the coating industry is transformed towards low carbon and sustainability.

This invention discloses an easy-to-clean, highly lubricating, fully synthetic cutting fluid, which comprises the following components by weight percentage: 13%–19% pH adjuster, 1%–5% surfactant, 1%–5% lubricant, 4%–8% rust inhibitor, 12%–16% polyether, 0.1%–0.5% flocculant, 4%–6% neodecanoic acid, 0.3%–0.7% bactericide, 0.1%–0.5% defoamer, and the balance being water, wherein the sum of the weight percentages of the above components is 100%. This cutting fluid exhibits excellent lubricity, extreme pressure anti-wear properties, cleanliness, and cooling properties, especially combining both lubricity and cleanliness, meeting the cutting fluid requirements of the new energy battery tray processing field. This invention also provides a method for preparing this easy-to-clean, highly lubricating, fully synthetic cutting fluid.

The present application relates to the field of paint, disclose a kind of oil-blocking paint based on biomass and its preparation method, the paint includes: additive solution, paraffin solution, gallic acid;Paraffin solution is dissolved in anhydrous ethanol using paraffin to obtain;The preparation method of additive solution is: taking chitosan powder and acetic acid aqueous solution mixed to prepare chitosan solution, taking functionalized montmorillonite ultrasonic dispersion in deionized water to prepare suspension, then mix evenly, grafting modified phytic acid prepared by adding phytic acid and ethylene glycol diglycidyl ether is stirred to prepare;Functionalized montmorillonite is modified montmorillonite using titanium dioxide and zinc oxide, then montmorillonite is activated using 3-aminopropyl triethoxysilane and succinic anhydride, then ring-opening reaction occurs with neodecanoic acid glycidyl ester to prepare, the coating prepared by the present application has high water-blocking capacity, Kit oil-proof grade is maintained at 12 level, and has high antibacterial performance, tensile index and ultraviolet aging resistance.

This invention relates to the field of plastic coatings, aiming to solve the problem that existing coatings, after the appearance of microcracks, are difficult to repair and prone to further expansion of cracks. It provides a method for preparing a self-healing plastic coating, comprising the following steps: S100, mixing and reacting isophorone diisocyanate, polycarbonate diol, and bismuth neodecanoate to obtain a first prepolymer; S200, adding dimethylolpropionic acid and bis(2-hydroxyethyl) disulfide dissolved in a solvent to the first prepolymer, reacting to obtain a second prepolymer; S300, adding triethylamine to the second prepolymer, reacting, then adding deionized water, and finally adding an aqueous solution of ethylenediamine dropwise to obtain a self-healing plastic coating. This invention introduces dynamic disulfide bonds through bis(2-hydroxyethyl) disulfide and constructs a structure in which hard segment micro-regions with sufficient mechanical strength are dispersed in a freely moving soft segment matrix. This allows the disulfide bonds to contact and exchange after the material is damaged, achieving self-repair.

The application discloses a kind of anti-fake magnetic optically variable ink and preparation method thereof, it is related to ink technical field.The magnetic optically variable ink of the application includes the following mass parts raw materials: water-based polyurethane 40-45 parts, water-based silicone modified acrylic resin 10-12 parts, polyethylene wax 2.2-2.5 parts, glycerol 3-3.5 parts, leveling agent 0.6-0.8 parts, defoaming agent 0.3-0.5 parts, bismuth neodecanoate 0.05-0.07 parts, deionized water 10 parts, pigment dispersion liquid 27-31 parts.The pigment dispersion liquid is prepared from deionized water, modified magnetic optically variable pigment.The introduction of raw materials such as modified magnetic optically variable pigment in the application simultaneously improves the adhesion, wear resistance, optically variable effect, aging resistance, weather resistance and medium resistance of the high-insulation anti-fake magnetic optically variable ink.Therefore, the application has a more extensive application prospect.

The invention relates to the field of water-soluble resin, and discloses water-based alkyd resin as well as a preparation method and application thereof. The water-soluble resin disclosed by the invention is prepared from 20 to 24 parts of erythritol, 6 to 8 parts of isosorbide, 10 to 15 parts of neodecanoic acid, 15 to 20 parts of succinic acid, 15 to 20 parts of sebacic acid, 2 to 3 parts of citric acid, 5 to 7 parts of isophorone diamine, 9 to 10 parts of linolenic acid propylene glycol ester and a catalyst. Under the condition that an emulsifier, a cosolvent and a large amount of neutralizer are not added, the emulsion can rapidly form a uniform milky-white dispersion with the same amount as water, and the emulsion is free of flocculation, layering and precipitation after standing at 25 DEG C for 30 days. Technological parameters are simple and controllable, the system is low in foam and easy to defoam, and large-scale amplification is facilitated; meanwhile, the dosage of a cosolvent and a neutralizer is reduced, VOC and odor are reduced, and the water-based environment-friendly requirement is met.

The invention discloses a device and method for reducing stannous neodecanoate chloride ions, and relates to the technical field of stannous neodecanoate preparation.The device comprises a shell and a switching assembly, a rotating base is arranged in the shell, a barrel is rotationally connected into the rotating base, a motor is fixed to the top of the shell, and the switching assembly is arranged in the shell; and an output shaft of the motor is connected with a first bevel gear set, a stirring shaft is arranged in one end of the first bevel gear set, and stirring blades are arranged on the outer side of the lower portion of the stirring shaft. The centrifugal force is used for controlling the moving position of the sliding block, the rotating state of the barrel body is automatically switched, the barrel body is locked by the positioning rod during low-speed stirring to guarantee the material mixing effect, the extraction efficiency is improved, and during high-speed rotating centrifugation, the centrifugal force triggers mechanical interlocking to achieve synchronous rotation of the stirring shaft and the barrel body; the centrifugal layering effect is prevented from being interfered due to the rotating speed difference between the stirring blades and the barrel body, automatic switching of stirring and centrifugal modes is achieved through the design, and time consumed for switching of traditional equipment is eliminated.

The invention discloses a process for continuously preparing neodecanoic acid through a propylene trimerization-branched nonene hydroformylation-oxidation method, and belongs to the technical field of neodecanoic acid preparation. The process comprises the following steps: (1) continuously introducing propylene into a propylene polymerization reactor filled with a solid phosphoric acid catalyst, and carrying out polymerization reaction, so that propylene is tripolymerized into a mixed product containing branched nonene; (2) continuously introducing the mixed product containing branched nonene and synthesis gas of CO and H2 into a hydroformylation reactor filled with an Rh-Xantphos / SBA-15 catalyst, and carrying out a hydroformylation reaction to obtain a mixed product containing neocapraldehyde; (3) continuously introducing the mixed product containing neodecanal and air into an oxidation reactor filled with a TS-1 molecular sieve, and carrying out oxidation reaction to obtain a mixed product containing neodecanoic acid; and (4) rectifying and purifying the mixed product containing neodecanoic acid to obtain a high-purity neodecanoic acid product. The continuous production of neodecanoic acid can be realized by combining the process provided by the invention with a fixed bed reactor.

This invention discloses a method for preparing a polylactic acid (PLA) anti-fogging film, belonging to the field of plastic film preparation technology. The anti-fogging film is prepared by solution blending and coating of PLA as the matrix, polycaprolactone as the toughening agent, caprolactone-polyethylene glycol-caprolactone block copolymer as the compatibilizer, a compound of citric acid-bonded neodecanoic acid glycidyl ester and decaglycerol monolaurate as the hydrophilic agent, and dichloromethane as the solvent. The PLA film prepared by this invention has good anti-fogging properties and excellent mechanical properties, and is completely biodegradable. Its application in the food packaging field has significant economic value and social benefits.

Disclosed is a kind of bio-based, high-solid low viscosity acrylic resin and a preparation method thereof. According to one aspect, provided is a bio-based high-solid acrylic resin prepared from a composition including: 20-80 parts of bio-based acrylates, 8-12 parts of 2-Hydroxyethyl Methacrylate (HEMA) or 2-Hydroxyethyl Acrylate (HEA) or 2-hydropropyl methacrylate (HPMA), 10-30 parts of low-toxic solvent, 3-5 parts of Methacrylic Acid (MAA) or Acrylic Acid (AA), 3-5 parts of a glycidyl ester of neodecanoic acid, and 0.3-5 part of an initiator.

The invention relates to a polyolefin adhesive for stainless steel and a preparation method thereof, and belongs to the technical field of adhesives. According to the invention, quinic acid and shikimic acid are firstly used for modifying sodium carbonate, then modified calcium carbonate and ramie fiber are used as fillers for filling so as to construct an efficient stress transfer system, and meanwhile, maleic anhydride grafted polyethylene is also added for assisting filling of the fillers, so that the impact resistance of the prepared adhesive is effectively improved; besides, malonaldehyde is added to reduce the activity of molecules in the material and limit molecular motion, vinyl neodecanoate with a side group is doped to increase the steric hindrance of molecular motion in the system, and hexanediol diglycidyl ether is doped to increase the density of a cross-linked network of the system, so that the composite material has excellent mechanical properties. The adhesive prepared by the method has relatively high peel strength.

This invention relates to a new temporary protective / decorative coating. In particular, the present invention relates to protective / decorative coatings, which are easy to be removed (i.e. by stripping, peeling, etc) and which comprise vinyl acetate-acrylate-vinyl neodecanoate-copolymer.

A household cleaning composition comprising at least one ingredient susceptible of generating a malodour, and a malodour control component comprising zinc neodecanoate, as well as methods of providing a malodour reduction benefit to a site of a source of malodour or a space proximate to it.

The invention specifically discloses a micro-jet continuous preparation method of silver neodecanoate, aims to realize continuous and uniform preparation of silver neodecanoate by utilizing a micro-jet mixed reaction mode, and solves the problem of product agglomeration caused by non-uniform mixing possibly existing in a traditional stirring and mixing reaction. The method comprises the following steps: preparing a sodium neodecanoate solution and a silver nitrate solution, and filtering; through the microjet mixing reactor, the two solutions are subjected to high-speed jet collision at a certain point outside the mixer to realize rapid and uniform mixing and reaction; the mixed solution flows into an open type bulk phase reaction container, and nucleation and growth are completed under the conditions of temperature control and stirring; and finally, separating, washing and drying in vacuum to obtain a silver neodecanoate product. By adopting the technical scheme, instant uniform mixing of reactants and continuous preparation of products can be realized, and the uniformity and batch consistency of the products are remarkably improved.

This invention relates to a water-soluble cutting fluid for drilling aluminum alloys, comprising, by weight percentage: 3-4% monoethanolamine, 8-12% triethanolamine, 4-6% diethanolamine, 4-7% carboxylic acid system, 6-8% high PO content low-foaming polyether ester, 2-3% glycerol, 2-3% anti-hard water agent, 2-3% neodecanoic acid, 1-2% bactericide, 0.15-0.20% polyether modified silicone oil defoamer, 0.10-0.15% polyether defoamer (GPE-3000), 0.05-0.1% hydrophobic fumed silica, 0.5-1.0% non-foaming corrosion inhibitor, 0.2-0.3% methylbenzotriazole (TTA), 0.3-0.5% dodecenyl succinic acid, 0.5-1.0% polyol phosphate ester (PAPE), 2-3% borate ester, 0.2-0.3% disodium EDTA, and a certain amount of deionized water. This invention also relates to a method for preparing a water-soluble cutting fluid for drilling aluminum alloys. This invention has the following advantages: it achieves root-cause suppression and long-lasting defoaming, while simultaneously inhibiting corrosion and discoloration of aluminum alloys and preventing rust on ferrous metals. It is suitable for the actual production needs of aluminum alloy drilling enterprises, has strong practicality, and has broad application value.

The invention discloses a catalyst for preparing neodecanoic acid by a mixed nonene hydroformylation-oxidation method as well as a preparation method and application of the catalyst, and belongs to the technical field of neodecanoic acid preparation. The catalyst provided by the invention is a Co-Mn / CeO2-SiO2 catalyst, and comprises a CeO2-SiO2 composite carrier, and active components Co and Mn which are loaded on the CeO2-SiO2 composite carrier, the molar ratio of CeO2 to SiO2 in the CeO2-SiO2 composite carrier is (1-3): 1, the loading capacity of the active component Co is 0.1-0.5% of the mass of the CeO2-SiO2 composite carrier, and the loading capacity of the active component Mn is 1.0-2.0% of the mass of the CeO2-SiO2 composite carrier. The Co-Mn / CeO2-SiO2 catalyst provided by the invention has high catalytic property on hydroformylation reaction and oxidation reaction in the process of preparing neodecanoic acid from mixed nonene, the preparation of neodecanoic acid by a mixed nonene hydroformylation-oxidation method is realized, and the conversion rate of mixed nonene is high, and the selectivity of neodecanoic acid is high, so that the yield of neodecanoic acid is improved.

The invention relates to the field of plastic paint, aims to solve the problem that cracks are difficult to repair and easy to further expand after microcracks appear in an existing coating, and provides a preparation method of self-repairing plastic paint, which comprises the following steps: S100, mixing isophorone diisocyanate, polycarbonate diol and bismuth neodecanoate for reaction to obtain a first prepolymer; s200, adding dimethylolpropionic acid and bis (2-ethoxyl) disulfide which are dissolved in a solvent into the first prepolymer, and reacting to obtain a second prepolymer; and S300, adding triethylamine into the second prepolymer, reacting, adding deionized water, and dropwise adding an ethylenediamine aqueous solution to react, thereby obtaining the self-repairing plastic paint. Dynamic disulfide bonds are introduced through bis (2-ethoxyl) disulfide, and a structure in which hard-segment micro-regions with sufficient mechanical strength are dispersed in a soft-segment matrix capable of freely moving is constructed, so that after the material is damaged, the disulfide bonds are in contact with one another and have an exchange reaction, and self-repairing is realized.