141 results about "Interpenetrating polymer network" patented technology

The invention belongs to the technical field of electrolyte materials, and particularly relates to a pH response biopolymer solid electrolyte as well as a preparation method and application thereof. The pH-responsive degradable biopolymer is taken as a main raw material, and one or more functional groups such as pyridine, sulfonic acid, carboxyl, tertiary amine, phosphoric acid and the like are contained. The organic acid and the organic acid salt are selected to adjust the pH value of a medium around the electrolyte, and the contraction / stretching behavior of a molecular chain is influenced by changing the ionization degree of the electrolyte, so that an interpenetrating polymer network structure is formed. The polar functional group of the biopolymer affects the migration behavior of lithium ions under different pH conditions, so that the migration rate and migration quantity of the lithium ions are increased, and the cycle performance of the battery is improved. The electrolyte is suitable for high-performance energy storage devices such as a lithium ion battery, can effectively improve the battery performance, reduces the environmental pollution, and has relatively strong green and environment-friendly advantages.

The invention discloses an LED (light-emitting diode) pouring sealant which is prepared from the following components: alicyclic epoxy resin, a glycidyl ether toughening agent, a thermal initiation cation curing agent, an anhydride curing agent and the like. A rigid ring structure of the alicyclic epoxy resin and a flexible chain segment of the anhydride curing agent are subjected to ring-opening reaction to form a three-dimensional cross-linked network; the alicyclic epoxy resin and the anhydride curing agent are combined to form an interpenetrating polymer network, the anhydride curing agent is further crosslinked through an esterification reaction in a high-temperature stage to form a high-density interpenetrating network, and the structure not only retains the weather resistance of the alicyclic epoxy resin, but also relieves internal stress through a flexible chain segment of anhydride, so that the volume shrinkage rate after curing is reduced to 0.5% or below; meanwhile, a glycidyl ether toughening agent is inserted into double networks through long-chain ether bonds to form tough nodes, crack propagation is inhibited, and the comprehensive performance of the colloid is remarkably improved by combining an anhydride curing agent vacuum dehydration and staged curing process.

The invention relates to the technical field of electric wires and cables, and discloses a fluoroplastic insulating high-temperature-resistant fireproof cable and a preparation method thereof.The cable comprises a conductor layer, the conductor layer is formed by twisting multiple strands of copper wires, the periphery of the conductor layer is coated with a fluoroplastic insulating layer, the periphery of the fluoroplastic insulating layer is coated with a shielding layer, and the shielding layer is arranged on the periphery of the conductor layer. The shielding layer is of a copper strip braided structure, the periphery of the shielding layer is coated with an armor layer, the armor layer is braided by stainless steel wires, the periphery of the armor layer is coated with a sheath layer, and the sheath layer comprises the following components in parts by mass: 50-70 parts of functionalized ethylene-tetrafluoroethylene copolymer. According to the invention, an interpenetrating polymer network formed by in-situ crosslinking of the functionalized fluoropolymer and the organosilicon elastomer is constructed in the sheath layer, and an energy field gradient response vulcanization process is adopted, so that the prepared cable sheath maintains the inherent high temperature resistance of fluoroplastic, and the flexibility and mechanical strength of the material are improved at the same time.

The invention relates to the technical field of adhesive tapes, in particular to a convex ball-mounting wafer thinning adhesive tape, a preparation method thereof and a wafer thinning machine, the thinning adhesive tape comprises a base material film, a viscosity-reducing adhesive layer and a release film; the preparation method comprises the following steps: preparing a first polymer network; preparing a second polymer network; the adhesive composition is obtained; forming a liquid film; covering the base material film on a liquid film; covering a release film on the upper surface of the fixed module in the wafer thinning machine; in a wafer thinning machine, the wafer with the base material film is installed on a release film, and heating treatment is carried out on the laminated wafer so as to directly form a solidified thinning adhesive tape on the wafer; by constructing a thermal / optical dual-curing interpenetrating polymer network with a dual visbreaking mechanism and combining with a special preparation method of the thinning adhesive tape in a thinning machine, the probability that a convex ball-mounting wafer generates microcracks or warps in a specific area when the adhesive tape is used for thinning operation is reduced.

The invention relates to the technical field of textile materials, and particularly discloses a fabric capable of improving thermal protection performance and a preparation method and application of the fabric. Nano-scale aluminum oxide; polyethylene glycol diacrylate; a closed type waterborne polyurethane emulsion; a silane coupling agent containing a vinyl group; a photochromic dye; a thermochromic dye; the preparation method comprises the following steps: S1, preparing composite slurry; s2, applying the composite slurry to the surface of a fabric base material in a dot matrix form by adopting a screen printing process to form a coating; s3, the coating is irradiated with ultraviolet light; and S4, carrying out baking treatment on the fabric subjected to the ultraviolet light curing treatment at the temperature of 140-160 DEG C. According to the invention, the polyethylene glycol diacrylate, the closed waterborne polyurethane and the vinyl-containing silane coupling agent are adopted to form an interpenetrating polymer network structure in situ, so that when the obtained fabric is rubbed or washed and the like, the coating is not easy to crack and peel off.

The precise molecular sieving architectures with Janus-like characteristics via an interpenetrating polymer network combining the hydrophilic cPI polymer and hydrophobic microporous covalent organic framework (COF) exhibit super-high permeances for both polar and nonpolar solvents. A unidirectional diffusion and convection process significantly speeds up chemically stable COFs with uniform and tailorable channels growing on polymeric hollow fibre that can efficiently separate organic solvents under ultrafiltration conditions.

The invention relates to the technical field of resin materials, in particular to photo-thermal dual-curing 3D printing ink and a preparation method and application thereof.The photo-thermal dual-curing 3D printing ink is prepared from, by weight, 30-60 parts of acrylate monomer, 10-30 parts of photoinitiator, 5-10 parts of photoinitiator, 1-5 parts of photoinitiator, 1-5 parts of photoinitiator, 1-5 parts of photoinitiator and 1-5 parts of photoinitiator. 40 to 70 parts of a reactive diluent; 3 to 10 parts of a photosensitive isocyanate monomer; and 2-5 parts of a photoinitiator. The photosensitive isocyanate monomer is introduced into the raw materials to obtain a dual-curing system, so that the 3D printing ink can be subjected to photocuring molding and then subjected to heat treatment to form an interpenetrating polymer network (IPN) structure, and the inevitable step effect in the photocuring 3D printing process is improved, so that the structural anisotropy is reduced, and the 3D printing quality is improved. The mechanical property of the material is improved.

This invention arrests the hydrophilic silicone macrochains into semi-interpenetrating polymer network via in situ photo-gelation assisted 3D microextrusion printing technique. The printed hybrid hydrogel has shown microporous morphology with tunable diffusion behaviour. The flow behaviour of the hydrogel has been tested showing high elastic modulus, low tan δ, high gel strength, and delayed network rupturing behaviour. The uniaxial compression test showed the almost zero permanent set which could promote it as an elastomer mimetic soft biomaterial. Moreover, the drug loading into the hydrogel has been performed which showed hydrophilic silicone dependent non-Fickian anomalous transport. The encapsulated drug stability inside hydrogel matrices also showed no deterioration of the pristine drug molecules even after one month storage. This could be the first hydrodrophilic silicone based soft biomaterial will serve as an excellent controlled drug delivery device.

The invention discloses a semi-interpenetrating network polymer solid electrolyte as well as a preparation method and application thereof. Comprising the following components in parts by mass: 60-100 parts by weight of a polymer binder, 20-40 parts by weight of polyarylpiperidine and 10-150 parts by weight of a lithium salt, the structural formula of the polyarylpiperidine is shown in the specification, X <-> is halogen and / or bis (trifluoromethanesulfonic acid) imine (TFSI <->), and X <-> is halogen and / or bis (trifluoromethanesulfonic acid) imine (TFSI <->). And m and n are 0-100. The preparation method of the semi-interpenetrating network polymer solid electrolyte provided by the invention is simple, and the semi-interpenetrating network polymer solid electrolyte has relatively high specific capacity and excellent cycling stability and is suitable for large-scale production.

The invention discloses a preparation method of a high-transparency TPE (thermoplastic elastomer) peristaltic pump pipe, and belongs to the technical field of high-molecular compounds. The preparation method comprises the following steps: blending high cis-1, 4-polybutadiene and polyethylene-polybutadiene to prepare a matrix phase; the method comprises the following steps: carrying out ester exchange reaction on dimethyl carbonate and polypropylene oxide glycol; then adding ethylene glycol as a chain extender to synthesize a polyurethane phase; carrying out melt blending on the two phases at a specific temperature, and adding dicumyl peroxide to initiate selective crosslinking; and finally, carrying out low-temperature and low-pressure extrusion molding to obtain the high-transparency TPE peristaltic pump pipe. By in-situ formation of an interpenetrating polymer network structure, nanoscale microphase separation is realized, so that the prepared pipe has high transparency, excellent fatigue resistance, excellent wear resistance and good chemical resistance at the same time. The method solves the industrial problem that a traditional peristaltic pump pipe is difficult to meet multiple high-performance requirements, and is suitable for the high-added-value fields such as biological pharmacy and precise instruments.

This invention relates to the field of protective coating technology for ships and marine engineering equipment, specifically to a high interfacial bonding strength gradient bonding layer and its preparation method. The preparation method includes grafting epoxy resin with γ-glycidoxypropyltrimethoxysilane; dissolving the modified epoxy resin, polydimethylsiloxane, and their respective curing agents in an organic solvent to obtain a blended resin precursor; coating the precursor onto the surface of an anti-corrosion paint and curing it to form a film. By controlling the migration rate of the resin components and the curing reaction rate during the curing process, a continuous gradient distribution structure is formed from the coating air interface to the substrate interface, with the concentration of modified epoxy resin continuously increasing and the concentration of polydimethylsiloxane continuously decreasing. This invention, through the synergistic regulation of thermodynamics and kinetics, forms an interpenetrating polymer network structure within the bonding layer, significantly improving the interfacial bonding strength and long-term service stability between the anti-corrosion paint and the antifouling paint.

The invention provides a crosslinked polystyrene product and a preparation method thereof, and belongs to the technical field of high polymer material molding.The preparation method comprises the steps that after raw materials are mixed and degassed, prepolymerization is conducted, the density is measured, the casting amount is calculated according to the total volume of the product, the volume fraction (55%-70%) of a center layer, the density and a shrinkage compensation coefficient, and the product is obtained. Carrying out first forming and second forming; according to the preparation method, prepolymerization and step-by-step forming are combined, polymerization heat release is effectively dispersed, and implosion, bubble and crack risks are remarkably reduced, so that the performance consistency of the product is high, a central layer and a peripheral layer are integrally combined on the molecular level through interface swelling and formation of an interpenetrating polymer network, the layering defect is avoided, and the performance uniformity of the product is improved. And through a casting amount calculation model, accurate control over materials is achieved, and the forming repeatability and the size precision are improved.

The invention relates to the technical field of water-based paint, in particular to water-based industrial anti-rust paint for steel components and a preparation method of the water-based industrial anti-rust paint. The problems that existing water-based industrial anti-rust paint is insufficient in anti-rust performance and weak in mechanical performance are solved. According to the invention, a phosphate group and graphene are simultaneously bonded to an epoxy resin molecular chain to form synergy of chemical anchoring and physical shielding; an organic-inorganic interpenetrating network structure is formed by using a water-based polyamide curing agent modified by an organic silane coupling agent, so that the mechanical property of a coating film is remarkably improved; by introducing the self-crosslinking acrylate emulsion with a core-shell structure, the brittleness problem of a pure epoxy system is avoided, and a formed interpenetrating polymer network structure can further enhance the compactness of a coating film; the functional conductive polymer aqueous dispersion is added and forms active-passive electrochemical synergistic protection with the zinc-aluminum phosphate composite pigment; and the zinc-aluminum phosphate composite pigment and the glass powder are compounded, so that the anti-rust performance is improved.

This invention discloses the application of a self-healing epoxy-acrylate interpenetrating polymer network anti-corrosion coating in a seawater environment, belonging to the technical field of marine anti-corrosion coating materials. The self-healing epoxy-acrylate interpenetrating polymer network anti-corrosion coating includes a coating matrix and hydrophobic self-healing microcapsules uniformly dispersed within the coating matrix. The coating matrix is ​​formed by interpenetrating polymerization of epoxy resin, acrylate, and a curing agent. The hydrophobic self-healing microcapsules have a core-shell structure, including a core and a wall. The core is an oil-based healing agent, and the wall is a hydrophobic polymer material. This invention achieves cross-linking polymerization and curing through the interaction of the oil-based healing agent with dissolved oxygen in the water, without relying on an additional curing agent, greatly reducing the interference of the seawater environment on the curing reaction. The synergistic system of the hydrophobic self-healing microcapsules and the coating matrix constructed in this invention achieves the integration of in-situ self-healing and long-term anti-corrosion in underwater environments.

The application relates to the technical field of electric wire and cable, and discloses a fluoroplastic insulation high-temperature-resistant fireproof cable and a preparation method, the cable comprises a conductor layer, the conductor layer is twisted by multiple copper wires, the conductor layer is coated with a fluoroplastic insulation layer, the fluoroplastic insulation layer is coated with a shielding layer, the shielding layer is a copper-belt woven structure, the shielding layer is coated with an armor layer, the armor layer is woven by stainless steel wires, the armor layer is coated with a sheath layer, and the sheath layer comprises the following components in mass fractions: functionalized ethylene-tetrafluoroethylene copolymer, 50-70 parts by mass. The application constructs an interpenetrating polymer network formed by in-situ crosslinking of a functionalized fluoropolymer and an organic silicon elastomer in the sheath layer, and adopts an energy field gradient response vulcanization process, so that the prepared cable sheath keeps the inherent high-temperature resistance of fluoroplastic, and the flexibility and mechanical strength of the material are improved.

The invention relates to an environment intelligent response type easily-degradable coated controlled-release fertilizer for dry farmland and a preparation method of the easily-degradable coated controlled-release fertilizer. The easily-degradable coated controlled-release fertilizer is prepared by uniformly spraying a layer of controlled-release coating material which is sensitive to temperature and humidity on the surfaces of urea or compound fertilizer particles. The coating material is prepared from a temperature and humidity dual-sensitive composition and an interpenetrating network polymer through an emulsion interfacial polymerization reaction under a heating condition. The temperature and humidity double-sensitive composition is formed by molecular self-assembly of a temperature and humidity low-sensitive organic material and a temperature and humidity high-sensitive organic material; the invention fundamentally solves the problem that the controlled-release fertilizer is difficult to release at low temperature and drought in spring and quick to release at high temperature and high humidity in summer on dry field crops, is more accurate in nutrient supply and demand matching, can realize that the fertilizer is only applied once per plant under the condition of high and stable yield of the dry field crops, and can meet the requirements of simultaneous sowing of seed and fertilizer and lateral deep fertilization; the method has the outstanding advantages of time saving, labor saving, fertilizer saving, easy degradation of the membrane material, environmental friendliness and the like, and has a very wide application prospect.

The invention relates to the technical field of textile printing and after-finishing, and discloses a gauze printing imitation sand washing process which comprises the following steps: performing chemical activation pretreatment on a gauze base material to provide a suitable surface for subsequent treatment; the split type printing paste with the interpenetrating network characteristic and the dual response function is prepared, and the binding force with a base material is enhanced; a pressure grading response type superposition overprinting process is adopted, and preliminary construction of patterns is achieved; an interpenetrating polymer network is constructed through a thermally induced chain reaction, and a printing structure is stabilized; and performing purification treatment and shaping finishing on the gauze to obtain a finished product. Chemical activation pretreatment is carried out on a gauze base material, functional printing paste containing dual-response microcapsules is cooperatively adopted, pressure and heat energy are used for carrying out grading and response type printing and curing on the paste, and in the single technological process, a finished product is endowed with excellent durability and fastness, soft hand feeling and controllable sand washing imitating appearance.

The application provides a bipolar membrane and a preparation method and application thereof. The bipolar membrane comprises a cation exchange layer, an anion exchange layer and an interface catalytic enhancement layer arranged between the cation exchange layer and the anion exchange layer; the cation exchange layer is a cation exchange membrane containing sulfonic acid groups, the anion exchange layer is an anion exchange membrane containing quaternary ammonium groups; the interface catalytic enhancement layer is an interpenetrating polymer network structure containing Cu-ZIF, the interpenetrating polymer network structure is a crosslinked network of epoxy modified polystyrene and acrylate; the cation exchange layer and the interface catalytic enhancement layer are combined through covalent bonds; the anion exchange layer and the interface catalytic enhancement layer are combined through electrostatic adsorption. In the interface catalytic enhancement layer, the stable loading of the catalyst is realized by using Cu-ZIF, and the firm combination between the bipolar membrane layers is realized by using the interpenetrating polymer network structure.

The present disclosure relates to a separator for a rechargeable lithium battery, and a rechargeable lithium battery including the separator. The separator includes a porous substrate and a coating layer on at least one surface of the porous substrate. The coating layer includes a heat-resistant layer including a binder and a filler, and an adhesive layer including an adhesive binder on the heat-resistant layer. The binder includes a (meth)acryl-based binder including a first structural unit derived from (meth)acrylic acid, (meth)acrylate, or a salt thereof, a second structural unit derived from hydroxyalkyl (meth)acrylate, and a third structural unit derived from (meth)acrylamido sulfonic acid or a salt thereof. The filler includes a filler having a particle diameter D50 ranging from about 250 nm to about 350 nm. The adhesive binder includes a fluorine-based homopolymer, and an interpenetrating polymer network (IPN) binder mixture of a fluorine-based cross-linked polymer and an acrylate-based cross-linked polymer.

The invention provides a medical adhesive and a preparation method thereof, the medical adhesive comprises a reagent A, a reagent B and a reagent C, the reagent A is a mixed solution of a water-soluble polyhydroxy polymer and an amino-containing nucleophilic reagent, the reagent C is an aldehyde compound, and the reagent B is an inorganic acid. In the process of preparing the medical adhesive, the reagent A and the reagent C can be subjected to a Schiff base reaction and an acetal reaction sufficiently and highly synchronously, so that an interpenetrating polymer network structure which is stable in structure and consistent in performance is formed, and the physical and chemical consistency and integrity of the medical adhesive are remarkably improved; the gelation time of the ternary system can be accurately controlled by controlling the concentration of the reagent B, the applicability and operation flexibility of the medical adhesive in different clinical scenes are enhanced, the problems of spraying failure, material loss and the like caused by premature curing or delayed forming of the gel in the using process are effectively avoided, and the success rate and effectiveness of intraoperative application are remarkably improved.

This invention discloses a photo / thermal dual-curing bio-based UV ink composition and its preparation method, relating to the field of UV-curable printing materials. It comprises the following raw materials in parts by weight: 100 parts of polypropylene carbonate diol-type polyurethane acrylate oligomer, 5-20 parts of a thermosetting component, 50-150 parts of an reactive diluent, 2-10 parts of a free radical photoinitiator, 0-80 parts of a colorant, and 0-10 parts of other additives; the thermosetting component includes eugenol-furfurylamine type benzoxazine monomer. The UV ink composition obtained by this invention can be heat-treated after photocuring. The polybenzoxazine network is interpenetrated after the formed polyurethane acrylate pre-crosslinked network, forming an interpenetrating or interpenetrating polymer network, and additional crosslinking can occur. This not only improves the strength and flexibility of the ink layer but also effectively enhances solvent resistance and adhesion, resulting in a UV ink composition with excellent overall performance.

The present invention relates to an organic-inorganic hybrid supramolecular epoxy self-lubricating sealing coating and a preparation method thereof, which is composed of an epoxy resin, an epoxy hyperbranched polysiloxane and a polyamic acid. Wherein, HSiEp is a hyperbranched topological structure in which the main chain segment is Si-O-C prepared by a "one-pot method", and PAA is a solid powder prepared by a solvent-free ball milling method according to the principle of tribochemistry, which has the advantages of being simple and easy to operate. By introducing HSiEp and PAA into EP to form a semi-interpenetrating polymer network structure, the compatibility of PAA and EP is increased by using HSiEp containing a large number of active groups, and the strength, toughness and heat resistance of EP can also be improved by using its "flexible" Si-O-C segment and the aromatic ether segment and "rigid" benzene ring structure of PAA. The organic-inorganic hybrid supramolecular epoxy self-lubricating coating prepared by the present invention not only has excellent mechanical properties, but also has good film-forming property, heat resistance and medium resistance, and therefore can be applied to self-lubricating sealing coatings of contact sealing parts in the fields of aviation, aerospace, etc.

This invention provides a method for preparing a graphene oxide-based interpenetrating polymer network (IPN) hydrogel, which mainly includes the following steps: First, graphene oxide is prepared using a modified Hummers method; then, using acrylic acid as a monomer and graphene oxide as a framework, a polyacrylic acid / graphene oxide IPN hydrogel is obtained by polymerization; utilizing the amino groups on the graphene oxide as active sites, pyrrole is grafted onto the IPN hydrogel to obtain a polyacrylic acid / graphene oxide-grafted polypyrrole IPN hydrogel; the graphene oxide-based IPN hydrogel can be used as an electrode material for flexible supercapacitors.

The invention relates to the technical field of preparation of interpenetrating network polymers, in particular to an interpenetrating network polymer as well as a preparation method and application thereof. The interpenetrating network polymer is prepared by initiating a front-end polymerization reaction of epoxy resin and acrylate. The polymer not only can give consideration to key mechanical properties such as tensile strength, impact strength, bending strength and flexural modulus at the same time, realizes collaborative optimization of high strength, high toughness and high rigidity, but also remarkably improves the processing fluidity of a raw material system. Besides, the preparation process only needs to be triggered instantly, and the adhesive has the advantages of high curing speed and low energy consumption, and is suitable for application requirements in the fields of electronic component packaging and the like.

The invention relates to a supramolecular semi-interpenetrating polymer network electrolyte and a preparation method and application thereof.The supramolecular semi-interpenetrating polymer network electrolyte is prepared from, by weight, 150-300 parts of polytetrahydrofuran, 150-300 parts of 18-crown ether-6, 40-60 parts of dicyclohexylmethane 4, 4 '-diisocyanate, 2, 2'-(1, 4-phenyl)-bis [4-(4-hydroxybutyl)-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4-trimethyl-1, 3, 4- The composite material is prepared from the following components in parts by weight: 32 to 48 parts of 1, 2-dioxaborolane], 1 to 1.2 parts of a catalyst, 5.5 to 8.5 parts of an end-capping reagent, 1500 to 2500 parts of 1, 3-dioxolame, 500 to 840 parts of lithium bis (trifluoromethylsulfonyl) imide, 23 to 38 parts of scandium trifluoromethanesulfonate and 15 to 25 parts of a cross-linking agent. According to the invention, a functional thermoplastic polyurethane elastomer-rotaxane is introduced into a polydioxolame matrix to form a supramolecular semi-interpenetrating network structure, so that concentration polarization and growth of lithium dendrites can be inhibited, and the cycling stability is improved.

The invention discloses an interpenetrating polymer network-based hydrogel material and a preparation method thereof, and the preparation method comprises the following steps: sequentially adding an acellular extracellular matrix solution, astragaloside IV, polyethylene glycol diacrylate and a photoinitiator into a polyvinyl alcohol solution, and uniformly mixing; refrigerating the mixture overnight, and then carrying out cross-linking reaction under ultraviolet light; the cross-linked hydrogel is sequentially subjected to CaCl2 solution soaking, NaOH solution soaking and multiple times of freezing and thawing cycle treatment. The astragaloside IV is used as a part of a hydrogel matrix, and the hydrogel with excellent mechanical properties and biological activity is formed through the synergistic effect of the astragaloside IV, the polyvinyl alcohol and the acellular extracellular matrix. The interpenetrating polymer network hydrogel based on the polyvinyl alcohol and the acellular extracellular matrix can be applied to preparation of motor system tissue repair or replacement materials, and is particularly applied to repair and replacement of bone, cartilage or ligament defects and promotion of tissue regeneration.

The invention provides a “host-guest” supramolecular hydrogel. The hydrogel contains an AAm / NVP interpenetrating polymer network (IPN) with supramolecular cross-linkers assembled from β-lactam / adamantane-containing guest molecule with host polymeric cyclodextrin (PCD). An advantage of this hydrogel is that because of the molecular association of polymeric cyclodextrin and adamantane, the supramolecular hydrogels self-heal without any external stimuli after the hydrogels are severed. The invention also provides methods of making the hydrogel, methods of making the synthesis intermediates, and methods of diagnosis or treatment of β-lactamase-containing bacteria.

This invention discloses a 3D printing composition based on the synergistic effect of RAFT and interpenetrating polymer networks, comprising a free radical crosslinking monomer, a diepoxy monomer, a RAFT chain transfer agent, and a cationic photoinitiator. The composition undergoes a synergistic reaction of RAFT polymerization and cationic ring-opening polymerization under light irradiation to form an interpenetrating polymer network structure. This invention selects specific ratios of free radical crosslinking monomer, diepoxy monomer, and RAFT chain transfer agent, and performs a synergistic reaction of RAFT polymerization and cationic ring-opening polymerization under light irradiation to form an interpenetrating polymer network structure, achieving a balance between strength and toughness. It maintains high toughness while maintaining high strength, thus meeting the requirements for both high strength and high toughness.

This invention relates to the field of adhesive technology, specifically to an interface-stabilizing adhesive for silicon anodes and its preparation method. The adhesive comprises curcumin-modified silicon-containing waterborne polyurethane-acrylate, a terpolymer, and a multifunctional monomer, wherein the mass ratio of the curcumin-modified silicon-containing waterborne polyurethane-acrylate, the terpolymer, and the multifunctional monomer is 3-5:1-2:1-1.2. The curcumin-modified silicon-containing waterborne polyurethane-acrylate is synthesized using acrylate and γ-methacryloyloxypropyltrimethoxysilane as modifiers and curcumin as a chain extender via an interpenetrating polymer network method. Through chemical bonding such as grafting and crosslinking, and supramolecular interactions such as hydrogen bonding and coordination, an intelligent network integrating elastic buffering, rigid support, interface passivation, self-healing, and ion conduction is constructed. After cycling, the electrode thickness expansion rate is controlled to <40%, with no macroscopic cracks and high electrode peel strength retention.

This invention discloses a polydicyclopentadiene material, prepared from dicyclopentadiene monomers and phenolic or amine compounds containing norbornene or norbornene structures under the catalysis of a main catalyst and a co-catalyst. The phenolic or amine compounds containing norbornene or norbornene structures not only possess antioxidant capabilities but can also undergo cross-linking reactions with dicyclopentadiene under the action of the dicyclopentadiene ring-opening metathesis polymerization system and the catalyst, forming a fully interpenetrating polymer network with dicyclopentadiene. This simultaneously achieves the purposes of reinforcement, toughening, and anti-aging, resulting in a polydicyclopentadiene material with high strength, toughness, and anti-aging properties, as well as good dielectric properties.