352 results about "Functional composite" patented technology

The invention relates to the technical field of antibacterial and antifouling fabrics, provides a preparation method of an antibacterial and antifouling fabric, and solves the problem of poor fabric durability caused by single functional component and lack of physical protection in the prior art. The preparation method comprises the following steps: S1, preparing MOFs loaded antibacterial fibers: blending a metal organic framework antibacterial composite nanomaterial and a polymer matrix material, and carrying out melt spinning to prepare the MOFs loaded antibacterial fibers; s2, constructing a self-cleaning functional coating: dispersing the fluorinated nanoparticles and a polymer adhesive in a solvent to prepare a self-cleaning coating solution; s2, performing surface activation treatment on the MOFs-loaded antibacterial fiber obtained in the step S1, soaking the MOFs-loaded antibacterial fiber in the self-cleaning coating liquid, and performing pulling and curing to form a bionic micro-nano structure coating on the surface of the MOFs-loaded antibacterial fiber so as to obtain a functional composite fiber; s3, spinning forming: taking the functional composite fibers obtained in the step S2 as warp yarns and / or weft yarns, and weaving to obtain the antibacterial and antifouling fabric.

The invention belongs to the field of functional composite materials, and particularly relates to low-viscosity and high-dispersity aluminum oxide slurry and a preparation method thereof.The low-viscosity and high-dispersity aluminum oxide slurry is prepared from a newly-designed phosphono-carboxyl block copolymer and biquaternary ammonium salt polyether silane as composite modifiers; and efficient anchoring and stable dispersion of the surfaces of alumina particles are realized through the synergistic effect of molecular structures. The phosphono-carboxyl block copolymer is prepared through controllable polymerization and deprotection reaction, and strong chemical bonding is formed between a phosphono group and the surface of aluminum oxide; the biquaternary ammonium salt polyether silane is subjected to click chemical synthesis, and electrostatic adsorption of quaternary ammonium salt and the steric hindrance effect of a polyether chain are combined. When the slurry is prepared, the two modifiers are sequentially added into water, the aluminum oxide powder is added after the pH value is adjusted, finally, the isobutylene maleic anhydride copolymer and the defoaming agent are introduced, and the slurry is obtained through vacuum defoaming and filtering. The slurry prepared by the method has the characteristics of high solid content, low viscosity and good dispersion stability.

The invention relates to the technical field of special functional coating materials for lost foam casting, and particularly discloses a special coating for a large machine tool casting lost foam as well as application and a use method of the special coating. According to the invention, the full-temperature-range functional composite material and the composite aggregate are used for synergistic reinforcement, and mullite is used for high-temperature reinforcement; the temperature-sensitive polymer modified graphite can realize intelligent temperature response of graphite performance; spodumene is used as a thermal expansion adaptive fluxing agent, so that medium-temperature healing and thermal expansion adjustment of a coating system are facilitated; the composite reinforced fibers are reinforced and toughened aiming at large thermal stress of thick and large parts; as an ultralow-temperature glazing agent, the boron-containing glazing agent can form an initial liquid phase at about 450 DEG C to seal the surface of the coating and purify a ventilation channel; the rare earth oxide serving as a high-temperature phase stabilizer can be dissolved in mullite crystal lattices, so that the high-temperature phase stability is improved, and ceramic nodes are refined. Through raw material design, on the premise of ensuring moderate air permeability, the ultrahigh strength and crack resistance of a coating system at extremely high temperature are improved.

The invention belongs to the field of functional composite fabrics, and provides a mosquito-repellent thermoplastic polyurethane composite fabric and a preparation method thereof.According to the mosquito-repellent thermoplastic polyurethane composite fabric and the preparation method thereof, the design that mosquito-repellent microcapsules of a core-shell structure are dispersed in a thermoplastic polyurethane hot melt adhesive layer is adopted, a microcapsule core layer comprises mosquito-repellent active ingredients such as icaridin, deet or dimethyl phthalate, and the mosquito-repellent active ingredients are dispersed in a thermoplastic polyurethane hot melt adhesive layer; the shell layer is made of a polyurea material and is prepared through an interfacial polymerization method, high-load stable dispersion and controllable dot matrix film forming of the microcapsule in a hot melt adhesive system are achieved, the content of the microcapsule can reach 0.5-15 wt%, the particle size is controlled to be 0.1-2.0 m, the drug loading capacity reaches 10-60 wt%, the problem that the mosquito-repelling microcapsule is prone to damage and failure in the high-temperature melting mixing and hot-pressing compounding process is solved, and the mosquito-repelling microcapsule has good application prospects. The prepared composite fabric is high in mosquito repelling rate, still keeps an effective mosquito repelling function after being washed for multiple times, and has a wide application value.

The invention discloses a functional composite fabric multi-layer collaborative printing and dyeing process and device, and belongs to the technical field of composite fabric printing and dyeing. The device comprises a plurality of sets of base material processing units arranged in parallel, an online alignment device, a composite unit, a quality detection unit and a digital twinning control unit, wherein each set of base material processing unit comprises an unwinding device, a plasma pretreatment device and a dynamic energy template printing and color fixing device which are sequentially arranged; the dynamic energy template printing and color fixing device is integrated with a multi-channel feeding system, the dynamic template of the pattern and the energy field applying module can be controlled by an electric signal, and synchronous printing and dyeing and targeted color fixing of base materials made of different materials are achieved. Parameters are optimized through digital twinning modeling, plasma pretreatment, pattern printing and energy color fixation are synchronously carried out on all layers of base materials, then accurate alignment and hot-pressing compounding are carried out, and a digital twinning control unit carries out whole-process cooperative control and closed-loop feedback.

The invention provides a functional composite suspended biological carrier and a preparation and application method thereof. The functional composite suspended biological carrier comprises a main base material and functional components, the main body base material is polyethylene or polypropylene, and the functional component comprises the following substances in parts by mass: 3.0 parts of polyquaternium-10 or cationic polyacrylamide, 1.5 parts of molybdenum disulfide, 2.5 parts of vinyl acetate or acrylate, 2.0 parts of nano silicon dioxide, 2-3 parts of talcum powder, 0.5 part of a silane coupling agent and 0.5 part of polyethylene wax; the total proportion of inorganic components in the carrier is less than or equal to 12%; the cross section of the carrier is a 19-hole honeycomb hollow cylinder, the diameter of the formed cylinder is 25 mm, the height of the formed cylinder is 10 mm, and the density of the carrier is 0.95-1.00 g / cm; according to the invention, the state of charge on the surface of the carrier is adjusted through the positive electricity polymer PQAS-10, the affinity with negatively charged microorganisms is enhanced, the biofilm culturing period is obviously shortened, and by introducing molybdenum disulfide and a composite conductive structure thereof, a surface micro-conductive network is established, and the microbial metabolism efficiency under aerobic and facultative conditions is improved.

The invention relates to the technical field of papermaking, in particular to a preparation method of high-definition electronic screen protection paper. According to the method, regenerated cellulose fibers serve as main raw materials, functional composite fibers of a core-shell structure are constructed, a core layer is the regenerated cellulose fibers, a shell layer is a polypyrrole / graphene composite conductive layer, and the lasting antistatic performance is achieved; meanwhile, the surface-modified nano silicon dioxide aerogel particles are introduced, so that the optical performance and the mechanical strength are improved; then compounding with polyimide fibers modified by a silane coupling agent, adding a bio-based wet strength agent and a fluorocarbon defoaming agent, and carrying out the steps of plasma pretreatment, pulping, on-net papermaking, controllable drying, magnetron sputtering surface treatment and the like to prepare the protective paper. The obtained protective paper has the characteristics of being ultrathin, high in strength, high in light transmittance, lasting in antistatic property and the like, and is suitable for protection of high-end liquid crystal display screens and OLED screens.

The invention discloses a waterproof and breathable bed sheet detection device and method, relates to the technical field of new material detection, and is particularly suitable for performance detection of a novel functional composite material waterproof and breathable bed sheet. The device comprises a detection cabin body mechanism, a dynamic air pressure monitoring system, an air source regulation and control module and an intelligent control unit, the detection cabin mechanism clamps a sample in a sealed mode through butt joint of a lower cylinder assembly and an upper cylinder assembly, the dynamic air pressure monitoring system synchronously collects air pressure of all cavities through multiple sensors, the air source regulation and control module selectively supplies air, and the intelligent control unit achieves detection mode switching and data integration. According to the method, the regional performance difference of the new material bed sheet can be accurately captured, the detection and measurement precision is improved, new material detection standardized parameters are automatically adapted, authentication and acceptance service data requirements are directly supported, the detection period is shortened, and an efficient and accurate detection scheme is provided for quality evaluation of novel composite material home textile products.

The invention belongs to the technical field of functional composite materials, and particularly relates to an all-organic epoxy resin composite material as well as a preparation method and application thereof. The method comprises the following steps: S1, heating, melting and blending epoxy resin and phenolic hydroxyl polyphenyl ether to obtain a composite system; s2, adding a curing agent and a catalyst into the composite system, heating, stirring, reacting, vacuumizing, defoaming, casting the obtained mixed solution into a mold, curing, cooling and demolding to obtain the all-organic epoxy resin composite material. The heat conductivity coefficient of the obtained composite material is improved by 44.2% compared with that of pure epoxy resin, and the thermal expansion coefficient is reduced by 32.8%. The method is mild in condition, short in technological process, low in energy consumption and suitable for large-scale production, an innovative thought and an effective strategy are provided for development of a high-performance all-organic electronic packaging material, and silicon-free and ceramic-free all-organic upgrading of the packaging field is expected to be promoted.

The present application relates to the technical field of special functional coating materials for lost foam casting, and specifically discloses a special coating for large machine tool castings, and application and use method thereof. The present application synergistically strengthens full-temperature-range functional composite materials and composite aggregates, and uses mullite for high-temperature strengthening. Temperature-sensitive polymer modified graphite can realize intelligent temperature response of graphite performance. Lithium feldspar as a thermal expansion adaptive fluxing agent is more conducive to the medium-temperature healing and thermal expansion adjustment of the coating system. Composite reinforcing fibers are used to enhance and toughen the thick and large workpiece with large thermal stress. Boron-containing glazing agent as an ultralow-temperature glazing agent can form an initial liquid phase at about 450 DEG C, seal the surface of the coating, and purify the air passage. Rare earth oxides as high-temperature phase stabilizers can be solid-solved in the mullite lattice, improve the high-temperature phase stability, and refine the ceramic nodes. Through raw material design, the coating system has improved ultrahigh strength and crack resistance at extreme high temperatures under the premise of ensuring moderate air permeability.

The application discloses a kind of synergistically modified decorative functional composite board and preparation method thereof.The board is all inorganic system, by substrate layer, inorganic hydrophilic expansion stress compensation layer, inorganic modulus transition layer and photocatalytic functional surface layer superposition.The compensation layer can produce reversible expansion with humidity, offset the shrinkage internal stress of board;Transition layer matches the mechanical properties of each layer, improves structural stability.The application can effectively prevent board warping, cracking and delamination, has air purification function, and there is no problem of organic component being photocatalytically oxidized, simple process, easy industrialization.

The invention discloses microcapsule self-regeneration-based long-acting formaldehyde-removing cement and a preparation method thereof, and belongs to the field of building materials and environmental functional materials. The material is composed of Portland cement clinker and a functional composite additive, wherein the additive comprises Zn < 2 + > modified zeolite, a manganese-based catalyst, a pH-responsive sustained-release microcapsule and alpha-semi-hydrated gypsum. According to the invention, through the cooperation of zeolite selective adsorption, non-photocatalytic oxidation of the manganese-based catalyst in an alkaline environment and pH-triggered microcapsule self-regeneration, an adsorption-catalysis-regeneration function closed loop is formed, efficient and lasting removal of formaldehyde under a dark condition is realized, and the mechanical properties of a cement matrix are not damaged. According to the preparation method, the functional components are pre-compounded and then co-ground with the cement clinker, the process is simple, and the preparation method is suitable for industrial production.

The invention discloses a vertical lathe base, which belongs to the field of vertical lathes, and structurally comprises an integrally formed star-shaped base main body, the base main body is of a bilaterally symmetrical integral structure, and a plurality of upright post mounting parts distributed in a star shape and lead screw supporting parts matched with the upright post mounting parts one by one are distributed on the top surface of the base main body; the lead screw supporting part is used for mounting a lead screw driving part; a main shaft mounting part, a functional component mounting part, a pipeline channel part, a chip removal and water drainage part and a maintenance and adjustment part are integrated on the base main body, all the components and the base main body are of an integral structure, and the mounting size precision is guaranteed through integral machining. The multi-station layout of the lathe base is achieved, the overall rigidity and installation precision of the lathe base are improved, the installation and operation requirements of a multifunctional composite vertical lathe are met, and the operation requirements for high efficiency and automation of hub machining are met.

The invention discloses a functional composite pore-forming agent, a sulfur-resistant denitration catalyst and a preparation method of the functional composite pore-forming agent and the sulfur-resistant denitration catalyst, and belongs to the technical field of selective catalytic reduction (SCR) of flue gas. According to the invention, the active component is prepared by adopting equivalent-volume impregnation; preparing a functional composite pore-forming agent containing citric acid and / or polyethylene glycol and a sulfur-resistant component MxOy-SiO2; the preparation method comprises the following steps: mixing and kneading an active component, a forming auxiliary agent and a functional composite pore-forming agent, performing extrusion molding, and performing roasting, phase forming and shaping according to a procedure, so that MxOy-SiO2 is deposited and fixed in situ on a new pore wall. The obtained strip-shaped catalyst has a high specific surface area and a pore wall sulfur-resistant functional layer, can effectively inhibit deposition of ABS in pores and slow down poisoning of SO2 to manganese-based sites, shows high NOx conversion rate and stability in an ultralow temperature interval of 80-320 DEG C, is suitable for denitration treatment of sulfur-containing complex flue gas such as steel, coking and cement, and has good industrial implementability.

The invention relates to the technical field of power electronic component manufacturing and advanced composite material application, in particular to a 3D inductor based on the Ampere's law and a method thereof. The three-dimensional precise interlocking winding comprises a functional composite framework, a three-dimensional precise interlocking winding and a magnetic core assembly, according to the system, a framework is formed by compositing a heat-conducting insulating substrate and soft magnetic powder, and air gaps between winding layers are physically filled through step-shaped positioning ribs; the core is that a low-thermal-resistance export path is established by utilizing the high heat conduction characteristic of the framework, and a heat conduction mode is converted from coil-to-air to coil-to-framework; the gradient difference between the core temperature and the surface temperature in the coil is effectively reduced through the embedded heat dissipation array, the heat dissipation problem under the high power density is solved, and the device performance is remarkably improved.

The utility model relates to electric wheelchair handle field discloses a dual -functional composite handle of electric wheelchair, including assembly mechanism, the assembly mechanism includes assembly box, one side fixedly connected with servo motor at assembly box front end outer wall, the output of servo motor extends to the inside of assembly box and is fixedly connected with one way screw rod, the outer wall of one way screw rod is equipped with one way sliding block, the upper surface fixedly connected with mounting panel of one way sliding block, the middle part fixedly connected with the mounting frame of mounting panel rear end outer wall, the inner wall fixedly connected with elastic dust cloth of mounting frame. In the utility model, through servo motor relevant structure is driven and makes multifunctional keyboard to go up and down, when not using, the mounting frame and elastic dust cloth are located multifunctional keyboard upper portion, can effectively reduce the failure probability that the key is out of order, contact failure etc. because of dust into the key gap.

The application discloses a kind of anti-static light-shielding mylar adhesive tapes, which include: functional composite substrate layer, functional composite substrate layer has opposite first surface and second surface, and is provided with a plurality of microporous structures, and the microporous structure is filled with conductive material;Anisotropic conductive adhesive layer is arranged on the first surface of the functional composite substrate layer, and the anisotropic conductive adhesive layer contains uniformly dispersed conductive particles, and the conductive particles can form electrical connection with the conductive material in the microporous structure under pressure state;And metal composite shielding layer is arranged on the second surface of the functional composite substrate layer, and the metal composite shielding layer is in electrical contact with the conductive material in the microporous structure.The anti-static light-shielding mylar adhesive tape realizes significant technical progress and multi-dimensional beneficial effects by constructing the three-layer synergistic structure of "microporous filled conductive material + anisotropic conductive adhesive layer + metal composite shielding layer".

The invention discloses functional composite fiber supplement granules for sows in the perinatal period as well as a preparation method and application thereof, relates to the technical field of feeds, and solves the problems that a single fiber raw material is poor in effect and palatability and cannot accurately regulate and control intestinal health of the sows in the perinatal period. Comprising the following raw materials in percentage by weight: 30-60% of soluble fiber; 25%-45% of insoluble fibers; 5%-15% of an adhesive and energy agent; 9.2%-23% of a functional additive and 0.5%-1.5% of a lubricant And unavoidable impurities. By scientifically compounding a plurality of specific fiber sources and functional additives, the feed can achieve the following effects: (1) the constipation condition of the sows in the perinatal period can be obviously improved; (2) regulating the balance of intestinal flora, inhibiting inflammation and enhancing the oxidation resistance of the body; (3) the feed intake of the sows in the perinatal period is increased, and postpartum recovery and lactation performance are promoted.

The application discloses a kind of annular spirofuran type polyurethane polyrotaxane and its preparation method, with rigid conjugated structure annular spirofuran derivative as macrocyclic host, with linear polyurethane chain as through axis molecule, and introduce end-capping group in polyurethane chain both ends, greater than annular spirofuran cavity, to constitute quasi wheelane of stable structure.Its preparation method mainly includes: first, synthesis of functionalized annular spirofuran macrocycle with through site;Then it is with isocyanate end-capped polyurethane prepolymer in solution by host-guest interaction and is penetrated to obtain target polyrotaxane.The material combines the rigidity, conjugation of spirofuran unit and the sliding crosslinking effect of polyrotaxane, and shows excellent thermal stability, mechanical properties and stimulus response characteristics.The polyrotaxane provided by the application is suitable for high-performance elastomer, intelligent shape memory material, damping material and optoelectronic functional composite material and the like fields.

The invention belongs to the technical field of ion exchange membranes, and relates to a composite membrane with a high ion selective catalytic function and a preparation method thereof. The composite membrane has a three-layer structure, namely a high-ion-selectivity base membrane doped with a microporous material and catalytic functional composite layers doped with a positive electrode catalyst and a negative electrode catalyst on two sides of the base membrane. The preparation method comprises the following steps: firstly, dissolving perfluorinated sulfonic acid resin in an organic solvent, then dividing the obtained solution into three parts, and respectively adding a microporous material, a positive electrode catalyst and a negative electrode catalyst into the three parts for dispersion; after concentration treatment, a step-by-step tape casting mode is adopted to sequentially prepare a high-ion-selectivity base membrane, a positive electrode catalytic function composite layer and a negative electrode catalytic function composite layer, and finally, the three layers are compounded to form the high-ion-selectivity catalytic function composite membrane. The prepared composite membrane endows the flow battery diaphragm with a catalytic function; through fusion of the catalyst and the diaphragm resin, the problem of catalyst shedding is solved, and the conductivity and the ion barrier ability of the diaphragm are improved at the same time.

The invention discloses a three-dimensional structure electromagnetic regulation and control material and a preparation method thereof, and belongs to the technical field of electromagnetic functional composite materials. In order to solve the problems of narrow band wave absorption and high density of a traditional electromagnetic regulation and control material, spherical carbonyl iron powder, conductive carbon black, graphene, carbon nanotubes, methyl vinyl silicone rubber and hydrophobic fumed silica are used as an electromagnetic regulation and control base material system, and the electromagnetic regulation and control material is prepared through mixing, vulcanization, forming and secondary processing. And the electromagnetic regulation and control material with the three-dimensional periodic tower-shaped microstructure, which has broadband electromagnetic wave absorption and low density and can be flexibly attached, is prepared.

The invention relates to the field of polymer functional composite materials, and particularly discloses a negative oxygen ion TPE three-layer plastic uptake foot pad and a preparation method thereof. The foot pad comprises a surface layer, a foam layer and a supporting layer which are sequentially arranged from top to bottom, the surface layer is composed of a modified TPE base body, the foam layer is a micro-foaming TPE elastic layer with the density being 0.4-0.7 g / cm < 3 >, and the supporting layer is a high-hardness TPE material layer with the Shore A hardness being 70-90. The modified TPE matrix is composed of TPE resin, negative oxygen ion composite master batch, 2, 4, 6-trihydroxymethyl phenol, a flexibilizer, an antioxidant, a light stabilizer, a dispersant and an inorganic filler, and the negative oxygen ion composite master batch is prepared by compounding tourmaline powder and a chitosan-organic silicon coupling graft. Through the twin-screw melt blending and three-layer co-extrusion plastic uptake molding process, the foot pad can be stable in structure, layered combination is firm, and negative oxygen ions are continuously released. The foot pad has excellent negative oxygen ion release performance, wear resistance, compression resilience and interlayer bonding strength, and is suitable for the field of automotive interiors and healthy and environment-friendly foot pads.

The invention discloses a multifunctional composite material and a preparation method and application thereof, and belongs to the technical field of composite materials. The multifunctional composite material provided by the invention is suitable for industrial scenes which need to meet the requirements of corrosion resistance, buoyancy support, light heat preservation and safety protection at the same time. Comprising but not limited to the fields of passive energy absorption protection, petrochemical engineering storage and transportation facilities, deep sea detection equipment, structure filling engineering in flammable and explosive environments, acoustic noise reduction engineering and the like. The multifunctional composite material provided by the invention is a material with multi-environment adaptability, and is particularly suitable for a composite functional material system with the characteristics of water resistance, oil resistance, chemical corrosion resistance, low heat conductivity, flame retardance, high-temperature adaptability, sound absorption, noise reduction and structural lightweight.

The invention discloses a multilayer composite transparent conductive film and a preparation method thereof, and belongs to the technical field of flexible transparent electronic materials, the multilayer composite transparent conductive film comprises a flexible transparent substrate and functional composite layers sequentially constructed on the substrate, and each functional composite layer is composed of a conductive network layer, a modified SWCNTs layer and an AZO layer. According to the thin film, an AgNWs dispersion liquid is sprayed on the surface of a cleaned flexible transparent substrate to form a conductive network layer; a CA-SWCNTs aqueous dispersion is sprayed on the surface of the conductive network layer to construct an AgNWs / CA-SWCNTs composite conductive layer; and spin-coating an AZO solution on the surface of the composite conductive layer, forming an AZO layer through a low-temperature sol-gel process, and finally preparing the multi-layer composite transparent conductive film. According to the film, the unique multilayer structure effectively cooperates with the advantages of all the layers of materials, high light transmittance, high conductivity, high electromagnetic shielding effectiveness, rapid electrothermal response characteristics and excellent environmental stability and mechanical durability are achieved, the preparation process is simple and convenient, and the film is suitable for large-scale production.

The invention discloses a magnetic nanoparticle anchored heterogeneous carbon-based heat-conducting and wave-absorbing integrated material and a preparation method thereof, and belongs to the field of functional composites.The preparation method comprises the steps that melamine foam is acidized, and then acidized MF is soaked into a zinc salt, cobalt salt and 2-methylimidazole methanol solution; the obtained MF (at) ZnCo-ZIF is subjected to high-temperature calcination, and the heterogeneous carbon-based heat conduction and wave absorption integrated material anchored by the Co magnetic nanoparticles is obtained. The Co magnetic nanoparticle anchored heterogeneous carbon-based heat-conducting and wave-absorbing integrated material has the advantages of controllable morphology, high heat conductivity and strong wave-absorbing performance through the synergistic strengthening effect of the high-graphitization heterogeneous carbon material with high heat / conductivity and high dielectric loss and the Co magnetic nanoparticles with high magnetic conductivity and high magnetic loss; actual requirements of different scenes can be met, and a new thought is provided for research and development of a high-performance heat-conducting and wave-absorbing integrated material.

The invention discloses a high-elasticity moldable bamboo-cork laminated board and a preparation method thereof. The laminated board is composed of a bamboo skin prepared through high-frequency directional pressing, a cork core, an intelligent glue layer containing a pH response type microcapsule curing agent and a functional coating containing nano cerium oxide and chitosan quaternary ammonium salt. The preparation method comprises the steps of high-frequency directional pressing and slicing of the bamboo chips, prepressing of the cork, application of the intelligent adhesive, gradient hot pressing and coating of the functional coating. By means of the high-frequency directional bamboo board pressing technology, the pH response type microcapsule curing agent and the functional composite coating and in cooperation with the three specific components, the bamboo-wood interface stress matching problem is systematically solved, the fatigue resistance and environmental stability of the material are remarkably improved, the material is endowed with the multifunctional surface characteristics of antibiosis, abrasion resistance, ultraviolet resistance and the like, the comprehensive performance is excellent, and the application prospect is wide. The material is suitable for the fields of high-end bags, automotive interiors and the like, and is an innovative environment-friendly material which replaces plastic with bamboo and surpasses the performance of plastic.

The present invention pertains to: a functionalized thermoplastic polyurethane containing a novel chain extender having functionality capable of chemically bonding to a prepolymer polymerized by reacting a polyol (P) with a diisocyanate (R); a functional composite material containing one or more monomers or polymers selected from the group consisting of an anionic functional group, an amphoteric functional group, a perfluorinated compound, a hydrogel, and a silicone polymer; a method for producing same; and an article including same.

The present application relates to a kind of preparation method of antibacterial functional complex with stable structure, impregnation liquid, impregnated paper and veneer, belong to antibacterial functional material and artificial veneer technical field.The core of the present application is to prepare a kind of high-temperature-resistant antibacterial functional complex, its method is as follows: tea polyphenol, liquorice extract and citric acid are compounded, then mixed with gelatin solution, then compounded with chitosan under pH 5.0~6.0 by electrostatic interaction, finally crosslinked by glutamine transaminase catalysis, form "electrostatic-covalent" dual stable network structure.The structure effectively encapsulates natural antibacterial active ingredient, so that it can withstand the high-temperature process of impregnation drying and hot pressing, effectively avoid decomposition.The complex is added as additive in impregnated resin, antibacterial impregnated paper and veneer can be prepared.The product has efficient, long-acting, safe antibacterial function, and the preparation process is compatible with existing impregnated paper production line, easy to realize industrial production.

The invention relates to the technical field of multifunctional composite materials, and discloses composite hydrogel with a two-stage pore structure as well as a preparation method and application of the composite hydrogel. The composite hydrogel with the two-stage pore structure is prepared by carrying out synergistic pre-assembly on liquid metal nanoparticles and MXene nanosheets and then carrying out in-situ polymerization with an acrylic monomer; a two-stage pore structure which is formed in situ in one step through polymerization heat release is arranged in the porous material. In the hydrogel disclosed by the invention, the liquid metal exerts multiple functions of hydrophobic modification, pore forming and electric conduction, and generates a synergistic enhancement effect of '1 + 1gt, 2' with the MXene; through the synergistic effect of a hydrophobic area introduced by the liquid metal and a two-stage pore structure, the swelling resistance of the hydrogel is fundamentally improved, so that the hydrogel can adapt to harsh water environments and chemical environments. Based on the synergistic effect, the composite hydrogel with the two-stage pore structure has excellent broadband electromagnetic shielding performance (covering GHz and THz wave bands), infrared thermal camouflage capability, ultraviolet shielding function and long-term anti-swelling stability in a harsh liquid phase environment.

The invention belongs to the technical field of diesel additives, and particularly provides a low-sulfur ash-free functional composite diesel anti-wear agent and a preparation method thereof. The functional composite diesel oil anti-wear agent comprises the following raw materials: 100 parts of soybean oleic acid, 4-8 parts of an emulsifier, 1-3 parts of an electrolyte, 0.5-1.5 parts of a lubricant, 0.2-0.5 part of a metal deactivator, 1-2 parts of a functional auxiliary agent and 200-300 parts of deionized water. The composite diesel oil anti-wear agent is excellent in anti-wear performance, has the functions of oxidation resistance, corrosion resistance and the like, and meets the higher requirements of modern low-sulfur diesel oil on the comprehensive performance of the additive.