954 results about "Maleimide" patented technology

The invention discloses a flame-retardant ABS (Acrylonitrile Butadiene Styrene) composition as well as a preparation method and application thereof, and relates to the technical field of high polymer materials. The flame-retardant ABS composition provided by the invention comprises the following components in parts by mass: 50-80 parts of ABS resin; 8 to 12 parts of styrene-acrylonitrile copolymer; 3 to 5 parts of styrene-acrylonitrile-maleic anhydride terpolymer; 2 to 6 parts of a fluorine-containing maleimide copolymer; 5 to 15 parts of graphite nanosheet modified high rubber powder; 12 to 18 parts of brominated flame retardant; 3-7 parts of a phosphorus-based flame retardant; 0.1-1 part of a processing aid; the phosphorus-based flame retardant is prepared from the following components in parts by mass: 80 to 95 parts of diethyl phosphinate; 0.3 to 3 parts of ethyl butyl phosphinate; 0.1 to 2 parts of ethyl phosphonate; and 5 to 20 parts of melamine polyphosphate. The flame-retardant ABS composition prepared by the invention is good in flame retardant property, good in welding strength and low in cost.

The invention relates to the technical field of crosslinked polyethylene insulated power cables, in particular to a flame-retardant and insulated low-voltage power cable and a preparation method and application thereof. The flame-retardant and insulating low-voltage power cable comprises the inner core layer, the filler layer, the belting layer, the lining layer, the metal armor layer and the outer sheath layer from inside to outside, and the multiple layers can effectively protect the inner core and endow the cable with better performance; in addition, low-density polyethylene, a furan modified polyethylene compatilizer, a reactive flame retardant, bismaleimide, dicumyl peroxide and an auxiliary are adopted to obtain the cross-linked polyethylene material for the cable outer sheath, and the cross-linked polyethylene material has excellent insulation, flame retardance, strength, toughness and repairing performance.

The invention relates to the technical field of coatings, in particular to an acrylate-epoxy resin composite coating and a preparation method thereof. According to the technical scheme, the coating is prepared from 25 to 35 parts of methyl methacrylate, 15 to 25 parts of butyl acrylate, 10 to 20 parts of epoxy resin E-5110, 8 to 15 parts of organic silicon modified acrylate prepolymer, 5 to 12 parts of fluorocarbon modified epoxy resin, 4 to 8 parts of core-shell structure corrosion inhibition nano container, 1 to 3 parts of functionalized graphene quantum dots and 4 to 10 parts of polyhedral oligomeric silsesquioxane maleimide modified amine curing agent. And 1-3 parts of a hindered amine light stabilizer. By integrating the core-shell structure corrosion inhibition nano container, the functionalized graphene quantum dots and the photo-thermal dual responsive curing agent component, the sensing, response and self-repairing of the coating on damage are realized, and long-acting corrosion resistance, weather resistance, bacteria resistance, mechanical property balance and intelligent maintenance are considered; and efficient and economical full-period protection is provided for equipment in an extreme environment.

The invention discloses a high-oxidation-resistance long-life polyethylene cable sheath material and a preparation method thereof, and relates to the technical field of high polymer materials. Comprising the following components: high-molecular-weight high-density polyethylene, surface-modified nano-dioxide, furan-maleimide grafted polyethylene, a Schiff base dynamic cross-linking agent, tea polyphenol grafted polyethylene, a temperature-responsive oxygen-blocking microcapsule, a main antioxidant, an auxiliary antioxidant, an emergency antioxidant, a light stabilizer, a halogen-free flame retardant, a processing aid and an acid absorbent. According to the invention, the main antioxidant, the auxiliary antioxidant and the tea polyphenol grafted polyethylene form a chemically synthesized and naturally modified composite antioxidant system, the designed service life of the material is greatly prolonged, the temperature-responsive oxygen-blocking microcapsule automatically cracks to release the core material when the operating temperature of the cable is greater than or equal to 90 DEG C, a dynamic oxygen-blocking layer is formed, and the service life of the cable is prolonged. The defect that the effect of traditional physical oxygen barrier is attenuated at high temperature is overcome, and the oxygen permeability at high temperature is reduced compared with that of a single nano barrier scheme.

The application provides a crosslinked polyethylene insulating material with intrinsic self-repairing and recyclable characteristics, a preparation method and application thereof, and relates to the technical field of cable materials.The crosslinked polyethylene insulating material with intrinsic self-repairing and recyclable characteristics is prepared from the following components in parts by weight: 99.7 parts by weight of low-density polyethylene, 1.0-2.6 parts by weight of peroxide, 0.1-0.5 parts by weight of antioxidant, 5-20 parts by weight of maleimide monomer, 0.35-0.7 parts by weight of catalyst, 0.5-3.0 parts by weight of ligand and 0.5-3.0 parts by weight of furan-based small molecule.The low-density polyethylene is functionally modified through catalytic amination reaction, so that the chain breaking and crosslinking in the modification process are avoided, and the mechanical properties, insulating properties and dielectric properties of the crosslinked polyethylene are enhanced through the post-absorption of the introduced peroxide.Meanwhile, the dynamic reversible Diels-Alder reaction introduced by the post-absorption of the furan-based small molecule enables the polyethylene insulating material to have good intrinsic self-repairing effect on mechanical damage and electrical damage.

The invention relates to the technical field of epoxy resin, in particular to self-repairing epoxy resin and a preparation method thereof. The self-repairing epoxy resin is prepared from the following raw materials in parts by mass: 80 to 120 parts of bisphenol A type epoxy resin, 20 to 40 parts of bisphenol F type epoxy resin, 5 to 15 parts of 1, 6-hexanediol diglycidyl ether, 1 to 3 parts of 3, 5-dimethylphenylboronic acid, 1 to 5 parts of furyl maleimide, 10 to 20 parts of dodecanedioic acid, 5 to 15 parts of butanetetracarboxylic acid, 1 to 3 parts of catalyst, 10 to 15 parts of nano silicon dioxide, 1 to 2 parts of boron nitride nanosheet and 1 to 2 parts of hyperbranched polyamidoamine. The curing agent is prepared from the following components in parts by weight: 20-30 parts of epoxy resin, 1-2 parts of sulfydryl-terminated polysiloxane, 20-30 parts of amine curing agent, 5-15 parts of reinforcing filler and 0.5 According to the invention, the balance among self-repairing capability, mechanical property and heat resistance is successfully realized; in the microcrack propagation process, fracture and recombination mechanisms of dynamic covalent bonds effectively prevent further propagation of cracks.

The invention discloses a DA bond polymer with antibacterial and self-repairing functions for a wood surface as well as a preparation method and a use method of the DA bond polymer. Chitosan serves as a wall material, cinnamon essential oil serves as a core material, the cinnamon essential oil and chitosan antibacterial microcapsules are prepared through emulsification, crosslinking and spray drying, and essential oil controlled release is achieved. Then bisphenol A diglycidyl ether DGEBA and furfuryl alcohol FA are used as raw materials, furyl functional epoxy resin FER is prepared under the catalysis of triethylamine TEA, bismaleimide BMI is added, and a DA bond self-repairing polymer is prepared through a DA reaction; and adding 4, 4-diaminodiphenylmethane DDM into the system, reacting with redundant DGEBA to generate a cross-linked polymer network, and adding the microcapsules into a DA bond semi-interpenetrating self-repairing network solution to obtain the DA bond polymer. A thin film formed by brushing and curing wood has antibacterial and self-repairing functions, scratches and microcracks on the surface of the wood can be repaired, and microbial erosion is inhibited.

The invention discloses a single-component high-heat-resistance type epoxy adhesive and a preparation method of the single-component high-heat-resistance type epoxy adhesive. The adhesive is prepared from the following components in parts by weight: 30 to 40 parts of N, N-4, 4 '-diphenylmethane bismaleimide; 50 parts of bisphenol F epoxy resin; 36.47 parts of 4, 4 '-diaminodiphenyl sulfone; 20 to 40 phr of phenyl glycidyl ether; 1 to 2 phr of two terminal type epoxy silicone oil; 4 to 6 phr of hydroxyl-terminated polyether sulfone; 10 to 20 phr of boron nitride, the surface of which is modified by gamma-glycidyl ether oxypropyl trimethoxy silane; and 1 to 3 phr of an adhesion promoter. According to the adhesive disclosed by the invention, the heat resistance, the mechanical property, the dimensional stability, the process adaptability and the like are synergistically improved, the use requirements of an aviation structural part on long-term service at 150-180 DEG C and an electronic packaging device on the condition of short-time reflow soldering at about 200 DEG C can be met, and the reliability of the adhesive in a high-temperature environment is remarkably improved.

The invention discloses a high-strength and high-resilience TPE (thermoplastic elastomer) and a preparation method thereof in the technical field of high polymer materials, and the elastomer is prepared by taking a hydrogenated styrene block copolymer as a matrix and matching with a polyolefin rigid phase, plasticizing oil and a specific additive. The method is characterized in that two self-made reaction type modifiers are introduced, wherein one self-made reaction type modifier is a core-shell nano reinforcing agent containing an epoxy functional group and polyhedral oligomeric siloxane, and the other self-made reaction type modifier is a furan maleimide bifunctional dynamic cross-linking agent. The nano reinforcing agent is prepared through silane hydrolysis and amination reaction, and can react with a matrix for grafting, so that the strength and creep resistance of the material are remarkably improved; the dynamic cross-linking agent is synthesized through step-by-step isocyanate addition reaction, a cross-linked network can be reversibly formed in the processing process, and the material is endowed with extremely high rebound resilience and low permanent deformation. The obtained product has high strength, high resilience and excellent processability, and is especially suitable for high-end fitness equipment.

The invention relates to polyethylene wax with a reversible crosslinking characteristic and a preparation method and application thereof, and relates to the field of polymer functional aids and processing and application thereof. The polyethylene wax with the reversible cross-linking characteristic is prepared from three monomers of furyl ethylene, maleimide ethylene and ethylene through double-bond addition copolymerization, and the number-average molecular weight is 1000-100000. The polyethylene wax provided by the invention can be used as a flow modifier during polyethylene material processing and a cross-linking modifier during use. The low molecular weight polyethylene wax can reduce the energy consumption of processing equipment and increase the flatness of the product. And meanwhile, the reversible crosslinking of furan and maleimide groups on the chain segment can endow the resin with thermoset property in use and thermoplastic cycle processability after use.

The invention relates to the field of pouring sealants, and discloses a modified epoxy resin pouring sealant and a preparation method thereof, the pouring sealant comprises epoxy resin, a modified inorganic filler, a modified additive and an auxiliary agent; the modified inorganic filler is prepared by grafting a quaternized s-triazine derivative and an inorganic filler; the quaternized s-triazine derivative is prepared through the steps that 3, 5-diaminophenylboronic acid, cyanuric chloride, 3-chloropropyltrimethoxysilane and 1, 4-butanediamine are sequentially subjected to substitution to prepare a s-triazine derivative, then the s-triazine derivative reacts with N, N-dimethyl-1, 3-diaminopropane, and bromoethane is used for quaternization treatment. The modified additive is prepared from a modified bismaleimide monomer prepared from maleic anhydride and 5 (6)-amino-1-(4-aminophenyl)-1, 3, 3-trimethylindane and 1-methyl-4-isopropyl cyclohexene through a self-stabilization precipitation polymerization method, the prepared pouring sealant is high in tensile strength, good in impact resistance and good in mechanical property, and the prepared pouring sealant has the advantages of being good in mechanical property, good in mechanical property and good in mechanical property. Meanwhile, good heat resistance, flame retardance, dielectricity and antibacterial activity are achieved.

The invention belongs to the technical field of polymer composite materials, and particularly relates to a high-strength bismaleimide resin material and a preparation method thereof. The bismaleimide resin composition comprises the following components in parts by weight: 50-60 parts of bismaleimide resin, 40-50 parts of an allyl compound, 1-3 parts of modified graphene and 0.1-0.5 part of a dispersing filler, the dispersing filler is prepared from modified inorganic nanoparticles and modified tetrapod-like zinc oxide whiskers in a mass ratio of (0.1-1): 1. Wherein the tetrapod-like zinc oxide whiskers can promote the dispersion of the graphene with a large lamellar structure from the macroscopic aspect, so that the graphene is uniformly dispersed in a bismaleimide resin matrix, and the inorganic nanoparticles can play a role in lubrication and isolation, so that the agglomeration among graphene lamellas in a small range is prevented. By adding the graphene composite reinforcing filler, the rigidity of the bismaleimide resin material is improved, and the toughness of the composite material can be improved at the same time.

Environmentally friendly primer compositions for rubber to substrate bonding. The primers can include film forming polymers, benzoxazine (BZX) resins, and fillers, in either a solvent-based formulation or an aqueous-based formulation. Some primer compositions can further include a co-resin such as bismaleimide (BMI). Methods of bonding components, including rubber to a substrate, and subsequent bonded assemblies are also provided.

The invention provides a polyamide hot melt adhesive containing dynamic reversible covalent bonds and a preparation method thereof, and belongs to the field of high polymer materials. Caprolactam and nylon 66 salt are used as raw materials, a furan ring and a carbon chain with a specific length are introduced, and the polyamide hot melt adhesive containing the dynamic reversible covalent bond is obtained through polymerization with maleimide and a derivative thereof. The melting point of the polymer can be regulated and controlled by regulating and controlling the carbon chain length of aliphatic diamine introduced into the xF salt, a furan ring in the xF salt is subjected to DA addition reaction with maleimide and a derivative thereof, dynamic reversible sites are provided, crosslinking between molecular chains is formed, a net system is formed, and the bonding strength of the material can be greatly improved. By adjusting the ratio of the xF salt to the maleimide and the derivative thereof, the reversible crosslinking behavior of the polymer can be adjusted, and finally the hot melt adhesive which has a lower melting point and excellent bonding strength and can be repeatedly used and recycled is obtained.

The invention discloses SIS (styrene-isoprene-styrene) containing dynamic reversible bonds and a preparation method thereof, and belongs to the technical field of high polymer materials. The copolymer is prepared through a Diels-Alder reaction with bismaleimide on the basis of a polystyrene construction unit with two tail ends capped with furan and a polyisoprene construction unit module with two tail ends capped with furan. Wherein the DA bond has a thermal reversible characteristic. The furan end-capped building unit module with controllable molecular weight and narrow distribution is prepared, and reversible connection and dissociation of blocks are realized through a modularization strategy. According to the invention, an inverse Diels-Alder reaction can be carried out at 120-140 DEG C, and is dissociated into an original construction unit module, so that the proportion of soft and hard segments of a copolymer is changed by supplementing a specific construction unit feeding amount and carrying out the Diels-Alder reaction again; the SIS has the advantages of being accurate in structure and designable in performance at the same time, flexible regulation and control over the block proportion are achieved through the SIS containing the dynamic reversible bonds, and meanwhile the SIS has wide application prospects in the fields of recyclable adhesives, intelligent packaging, flexible electronics and the like.

The invention discloses polycaprolactone dihydric alcohol containing maleimide groups and a preparation method and application thereof, and the preparation method of the polycaprolactone dihydric alcohol comprises the following steps: adding N-(2, 3-dihydroxy propyl) maleimide, caprolactone and a catalyst into a reaction container, carrying out high-temperature reaction for 12-18 hours, filtering, washing, and drying to obtain the polycaprolactone dihydric alcohol containing the maleimide groups. And cooling and discharging to obtain the polycaprolactone diol containing the maleimide group. The polycaprolactone diol containing the maleimide group is used as a raw material to prepare a polyurethane prepolymer, so that the side chain of the prepolymer is provided with the maleimide group, and then a difuran compound is introduced as a dynamic cross-linking agent to obtain the self-repairing polyurethane elastomer containing the Diels-Alder bond. Through the reversible Diels-Alder (D-A) reaction effect of the functional components, the polyurethane elastomer can be remodeled and recycled, and the polyurethane elastomer has excellent and stable mechanical properties, self-repairing efficiency and repeated self-repairing capability.

The invention relates to the field of polyimide films, and discloses a catalytic polyimide film with a low thermal expansion coefficient and a preparation method thereof, the catalytic polyimide film comprises 43-47% of a rigid polyimide material, 28-32% of a flexible polyimide material, 4-6% of a dynamic cross-linking agent, 7-9% of a component agent, and the balance of a solvent; the dynamic cross-linking agent comprises maleimide terminated polyamide and a difuran compound, and the ratio of the maleimide terminated polyamide to the difuran compound is 3: 2. Through the synergistic effect of constructing a stable framework by a rigid polyimide material, buffering stress by a flexible polyimide material and uniformly dissipating heat by flaky boron nitride, a chemical regulation and control system of'rigid constraint-flexible buffering-heat conduction balance 'is formed, thermal expansion is inhibited from the molecular level, and compared with a traditional physical method which purely depends on external force or a single component, the thermal expansion coefficient is greatly improved. According to the system, through complementation of chemical mechanisms of all components, the dimensional stability under temperature fluctuation is improved to a new height, and the problem that the thermal expansion coefficient in a wide temperature range is difficult to control is solved.

The invention discloses a modified inorganic solid electrolyte filler as well as a preparation method and application thereof. Belongs to the technical field of solid-state lithium metal batteries. The modified inorganic solid-state electrolyte filler comprises inorganic solid-state electrolyte powder and an organic-inorganic hybrid grafting layer grafted on the surface of the powder, the inorganic solid electrolyte powder is one or more of oxide, sulfide and halide; and the organic-inorganic hybrid grafting layer is formed by bonding maleimide-polyethylene glycol-silane (Mal-PEG-silane) with the surface of the filler and then covalently copolymerizing the bonded maleimide-polyethylene glycol-silane and the surface of the filler with polyethylene glycol diacrylate (PEGDA). According to the modified inorganic solid electrolyte filler disclosed by the invention, a stable organic-inorganic hybrid structure is constructed through surface grafting and copolymerization, so that the dispersity of the filler in a polymer matrix can be remarkably enhanced, and the organic-inorganic interface compatibility and stability are improved; therefore, the ionic conductivity, the mechanical strength and the electrochemical cycle performance of the composite solid electrolyte are improved.

The invention relates to a double-self-repairing hydroxyl acrylic coating and a spraying process thereof, and belongs to the technical field of coatings. Comprising 50 to 60 parts of a hydroxy acrylic resin-furan modified copolymer, 5 to 10 parts of a maleimide compound, 3 to 8 parts of propylene glycol methyl ether acetate, 5 to 10 parts of dimethyl carbonate, 5 to 8 parts of polyurethane microcapsules, 5 to 7 parts of carbon black, 2 to 5 parts of modified titanium dioxide, 0.8 to 1.2 parts of a modified polyether siloxane leveling agent and 0.2 to 0.4 part of an organic bismuth-zinc composite drier. 2 to 5 parts of fumed silica; and 1 to 2 parts of nano montmorillonite. The paint provided by the invention can form a uniform and continuous coating on the surface of a base material. When the coating is damaged by scratches and the like, self-repairing can be achieved through double mechanisms. According to the spraying process, the polyurethane microcapsules and the matrix resin are separately mixed, and breakage caused by direct mixing of the microcapsules and the resin can be effectively avoided.

The invention relates to a cross-scale thermal response self-repairing polyurethane material as well as a preparation method and application thereof, and belongs to the field of self-repairing polyurethane materials. A pyridine group is introduced into a main chain of the polyurethane material to form a reversible coordination bond with metal salt, so that molecular-scale self-repairing is realized, and the dynamic property of the coordination bond can be enhanced by a preferable double-metal synergistic system; a side chain is designed to be of a furan-maleimide structure based on a Diels-Alder reaction, thermal response macroscopic self-repairing performance is given to the material, a methyl substituted furan group is introduced to improve steric hindrance, and the high-temperature application scene can be expanded. The polyurethane material has a thermal response and metal coordination dual self-repairing mechanism, and is suitable for polymer protection and repairing application under severe working conditions of high temperature, high ion concentration and the like.

The application discloses a skin repair dressing and a preparation method thereof, and belongs to the technical field of medical dressings. The skin repair dressing comprises the following raw materials in parts by weight: carboxymethyl chitosan 4-6 parts, sodium alginate 2-4 parts, polyvinyl alcohol 8-10 parts, recombinant human collagen 1-2 parts, sodium hyaluronate 0.5-1 part, a crosslinking agent 1.5-2 parts, nano filler 0.1-0.5 part, an antioxidant 0.5-1 part and deionized water 80-90 parts; the crosslinking agent is prepared by reacting glutathione with dithio-bismaleimidyl ethane to obtain an intermediate 1, and then reacting with 4-formylphenylboronic acid. The skin repair dressing prepared by the application has excellent tensile properties and antibacterial properties.

The present disclosure provides a hydrogel composition for tissue engineering and regenerative medicine, including naturally derived polymers functionalized with furan groups and nanoparticles of poly(lactic-co-glycolic acid)-poly(ethylene glycol) copolymer functionalized with maleimide groups. Covalent crosslinking via a bioorthogonal Diels-Alder click reaction forms a tunable, biocompatible, and biodegradable three-dimensional network. The hydrogel composition mimics the extracellular matrix and offers adjustable mechanical properties, controlled biodegradation, and therapeutic agent delivery for applications such as cartilage regeneration and drug delivery.

The invention relates to the technical field of MBS resin preparation, in particular to MBS resin with improved low-temperature tensile strength and a preparation method thereof. The MBS resin for improving the low-temperature tensile strength is prepared from the following main raw materials: butadiene, styrene, methyl methacrylate, butyl acrylate, N-phenylmaleimide, BAPT, a silane coupling agent and an auxiliary reinforcing monomer, the composition also comprises the following auxiliary agents: an emulsifier, an initiator, a molecular weight regulator and an antioxidant. Through gradient introduction and step-by-step reaction of a rigid monomer N-PMI, a flexible monomer THFA and a cross-linking agent BAPT, a fine structure of'in-core rigidity increasing, shell layer rigidity and softness and interface strengthening 'is realized in polymer particles. By means of the collaborative structure from inside to outside, optimal distribution of rigidity and toughness of the material on the molecular level is achieved in advance, and the root reason for breaking through the low-temperature performance balance bottleneck macroscopically is achieved.

To provide a thermosetting resin composition which becomes a cured product having high heat resistance and excellent tracking resistance.SOLUTION: The thermosetting resin composition contains (A) an aliphatic bismaleimide compound represented by the following formula (1) (where A represents a C5-12 divalent aliphatic hydrocarbon group) and (B) an epoxy resin having two or more epoxy groups in one molecule. A content of the component (A) is 20 to 95 mass% based on the total of the component (A) and the component (B).SELECTED DRAWING: None

The present application relates to a kind of bismaleimide resin compositions and the semi-cured sheet and laminated plate prepared therefrom, comprising components: bismaleimide compound, allyl phenol compound and oxetane compound, the equivalent ratio range of double bond in the bismaleimide compound and double bond in the allyl phenol compound is 3~0.3, the oxetane compound accounts for 0.5~5% of the overall resin, the preparation process of semi-cured sheet and laminated plate includes the following preparation steps: step S1, the glue liquid prepared by bismaleimide resin composition is infiltrated into glass fiber cloth, and then baked and dried to obtain semi-cured sheet;Step S2, the surface of semi-cured sheet is covered with metal foil, and high-temperature pressing is formed, the advantage of the present application is that the glue liquid of resin composition, semi-cured sheet has good storage property, and the laminated plate prepared therefrom has excellent heat resistance, copper foil bonding force and moisture resistance.

The invention discloses a battery intelligent thermal management coating based on reversible Diels-Alder reaction and a preparation method and application thereof.The coating is of a multi-layer composite structure and comprises a basic binding layer, a functional thermal management layer and a protective isolation layer, the functional thermal management layer is composed of a functional polymer grafted with furan and maleimide groups, the reverse reaction temperature of the reversible Diels-Alder reaction is 80-120 DEG C, the temperature of the functional thermal management layer is 20-30 DEG C, and the temperature of the protective isolation layer is 20-30 DEG C. And the heat absorption capacity is 500-800J / g. The preparation method comprises the following steps: preparing slurry containing the functional polymer, coating a battery assembly with the slurry, and curing at 80-100 DEG C to form a coating. The coating can be applied to a battery electrode, an electrochemical energy storage device and a battery module, instantaneously absorbs heat through reverse reaction at the early stage of thermal runaway of the battery, and automatically resets after the temperature is reduced, so that circulating reuse is realized. The material is high in heat absorption efficiency, high in response speed, compatible with the electrochemical performance of the battery, capable of effectively reducing the thermal runaway risk of the battery, and suitable for various electrochemical energy storage devices such as lithium ion batteries and sodium ion batteries.

The invention discloses a water-based composite coating with a hybrid structure, which comprises a modified acrylate emulsion which can form an organic-inorganic hybrid structure and contains an epoxy group and a furan group, a reinforced phase dispersion liquid containing a maleimide group, a water-based polyurethane emulsion, deionized water and other functional aids. Wherein the modified acrylate emulsion is obtained by carrying out emulsion free radical copolymerization on glycidyl methacrylate and furfuryl methacrylate, namely other acrylate substances; the reinforced phase dispersion liquid is obtained through maleimide addition and substitution reaction and grafting with the modified nano silicon dioxide. The invention further discloses a preparation method of the hybrid-structure water-based composite coating. The preparation method comprises the steps of preparation of the organic-inorganic hybrid emulsion, preparation of the wax-containing composite emulsion and preparation of the hybrid-structure water-based composite coating. According to the preparation method, a Diels-Alder reaction is taken as a core, and the hybrid-structure water-based composite material which is good in physical property, repairable and convenient in process method is prepared.

The invention discloses a preparation method of a self-repairing LATP composite solid electrolyte membrane, which comprises the following steps: S1, hydroxylating titanium aluminum lithium phosphate nanoparticles, and coating with an isocyanate polyurethane prepolymer to obtain porous PU-LATP particles; s2, carrying out copolymerization on adamantanediol diacrylate, acrylate and furfuryl acrylate, and then carrying out a Diels-Alder reaction with bismaleimide so as to form a reversible cross-linked precursor solution; and S3, mixing the PU-LATP particles with the precursor, a lithium salt and an auxiliary agent, carrying out vacuum defoaming, and drying to obtain the self-repairing LATP composite solid electrolyte membrane. According to the preparation method disclosed by the invention, the solid electrolyte membrane is endowed with the capability of quickly self-repairing microcracks at room temperature, and high ionic conductivity and a wide electrochemical window are considered at the same time; the mechanical strength is obviously improved, the thermal dimensional stability is excellent, and the strict requirements of the solid-state lithium battery on high safety and long cycle life can be met.

The invention discloses a full-biodegradable bag and a preparation method thereof in the technical field of biodegradable materials.According to the full-biodegradable bag, polylactic acid and poly (butylene adipate-co-terephthalate) serve as matrixes, and performance optimization is achieved by adding a specially-made nanofiber interpenetrating network compatibilizer and a star-shaped structure bio-based plasticizer; wherein the nanofiber interpenetrating network compatibilizer is prepared by grafting polylactic acid and poly (butylene adipate-co-terephthalate) chain segments on cellulose nanofibers through an atom transfer radical polymerization technology, and the star-shaped structure bio-based plasticizer is prepared through ring opening polymerization and melt grafting technologies. In addition, the formula also comprises a maleimide modified lignin filler, an ethylene bis stearamide lubricant and an antioxidant. Through the synergistic effect of the two specially-made modified compounds, the compatibility of all the components is remarkably improved, the preparation process is simple and reliable and suitable for industrial production, and the problem of white pollution of traditional plastic products can be effectively solved.

The invention relates to a low-temperature-bending-resistant data line and a preparation method thereof. The low-temperature-bending-resistant data line comprises the following components in parts by weight: 45-65 parts of TPU, 8-12 parts of polypropylene, 15-25 parts of ethylene propylene diene monomer, 10-12 parts of a plasticizer, 10-16 parts of a modified flame retardant, 1-2 parts of a modified anti-aging agent, 1-2 parts of a lubricant and 1-2 parts of a coupling agent. The modified flame retardant achieves efficient environment-friendly flame retardance through phosphorus-oxygen-silicon synergism, gamma-glycidyl ether oxypropyl trimethoxy silane promotes surface char formation, delays combustion and reduces smoke generation, hydroxybenzophenone in the modified anti-aging agent resists ultraviolet rays through electron transition and converts the ultraviolet rays into heat energy, a maleimide group improves the glass transition temperature of the material, and the flame-retardant performance of the material is improved. A six-membered ring structure and N-phenylmaleimide are cooperated, so that high-temperature yellowing is reduced; the low-temperature-bending-resistant data line prepared by the invention not only has a good flame-retardant effect, but also has an excellent anti-aging effect.