757 results about "Functional polymers" patented technology

The invention discloses spherical aluminum oxide and a silicone rubber heat conduction composite material thereof, and belongs to the technical field of functional polymer materials. The spherical aluminum oxide is subjected to surface modification through an amphiphilic fluorosilicone heat conduction interface synergist; comprising the following raw materials in parts by weight: 100-200 parts of vinyl silicone oil, 1-6 parts of side hydrogen-containing silicone oil, 1-6 parts of end hydrogen-containing silicone oil, 0.2-2 parts of a platinum catalyst, 0.01-0.1 part of an inhibitor and 2500-6000 parts of amphiphilic fluorine-silicon heat-conducting interface synergistic spherical aluminum oxide powder. Through surface modification of spherical aluminum oxide, the prepared silicone rubber heat-conducting composite material realizes synergistic gain of heat conduction, insulation and flexibility, and can meet the requirements of multiple fields such as power battery pack heat dissipation gaskets, high-frequency circuit packaging and wearable equipment.

The invention relates to a functional liquid metal-based temperature-responsive hydrogel material and a preparation method thereof, and belongs to the technical field of functional polymer hydrogel materials.The preparation method comprises the following steps that a temperature-responsive hydrogel composite material comprises a hydrophobic association polymer gel and a hydrogel monomer, the hydrophobic association polymer gel comprises a hydrophobic association polymer monomer, a functional filler and an initiator. The functional filler is liquid metal gallium with the edge modified by graphene oxide, and has triple functions: firstly, the functional filler is used as an electrostatic crosslinking node to form a crosslinking network with anionic ionic liquid; secondly, dynamic repair is promoted, and Ga < 3 + > is released to promote dynamic bond recombination. In addition, as a functional filler, the hydrogel is endowed with excellent photo-thermal and electro-thermal conversion performance, and the multi-stimulus response capability is enhanced. The composite material realizes structural assembly by means of hydrophobic association, shows reversible phase change and repeated self-assembly characteristics under various stimuli such as photo-thermal, electric heating, direct heating and the like, and has wide application potential.

The invention relates to the technical field of functional polymer composite materials, and provides diatomite modified composite super absorbent and rapid absorbent resin and a preparation method thereof. The preparation raw materials of the diatomite modified composite high-water-absorption and rapid-water-absorption resin provided by the invention comprise acrylic acid, acrylamide, sodium hydroxide, N, N '-methylene bisacrylamide, ammonium persulfate and modified diatomite. The diatomite is modified by the silane coupling agent, the agglomeration problem of the diatomite is solved, the compatibility with organic monomers is improved, and the modified diatomite, acrylic acid and acrylamide are utilized to construct an organic-inorganic synergistic three-dimensional porous network structure, so that the resin has ultrahigh water absorption rate, rapid water absorption performance and good water retention stability. Meanwhile, the preparation method disclosed by the invention does not need nitrogen protection, has the advantages of simple process, controllable raw material cost and easiness in industrial mass production, and is suitable for multiple fields such as water-saving agriculture, soil moisturizing, landscaping and the like.

The invention belongs to the technical field of composite material design, and discloses a polymer composite material design method based on LLM knowledge database construction and reasoning optimization, and the method comprises the following steps: S1, target performance setting; s2, constructing a knowledge database; s3, constructing a reverse design model; s4, constructing a performance verification module; and S5, performing multi-round test-verification design loop optimization. According to the method, an intelligent design method integrating target setting, semantic knowledge database construction, a design assistant, a performance verifier, a prompt engineering module and a language model material knowledge system is provided, closed-loop reasoning and feedback of structure-mechanism-performance are achieved through multiple rounds of DA-VM collaborative optimization, and the design efficiency is improved. The method has the advantages of high design efficiency, strong structure generation rationality, accurate performance prediction, knowledge evolvable and the like, and is suitable for intelligent rapid development of the high thermal conductivity-wave absorbing-shielding-mechanical integrated functional polymer composite material.

The invention relates to the technical field of preparation of water-based functional polymer materials, in particular to a preparation method of water-based polyurethane slurry for sports shoe leather, which comprises the following steps: mixing polycarbonate diol, core-shell structure graphene oxide-polycaprolactone hybrid nanoparticles and dimethylolpropionic acid, and carrying out vacuum dehydration treatment, isophorone diisocyanate is added for a reaction, and a polyurethane prepolymer is obtained; after the polyurethane prepolymer is cooled, triethylamine is added for a neutralization reaction; under violent stirring, adding a mixture composed of 1, 4-butanediol and a hyperbranched organosilicon amino chain extender serving as a flexible functional core into the neutralized prepolymer to carry out chain extension reaction, and adding deionized water to carry out reversed-phase emulsification, so as to obtain a waterborne polyurethane emulsion; standing and curing the waterborne polyurethane emulsion at a preset temperature to obtain waterborne polyurethane slurry; the finally prepared shoe leather material has excellent wear resistance and excellent low-temperature bending durability.

The invention discloses a preparation method and application of a membrane separation material based on external field enhanced water isotope separation. The preparation method comprises the following steps: firstly, pre-enriching a precursor component containing a polymerizable monomer, a cross-linking agent and a photoinitiator in a confinement pore channel of a nano-porous carrier through an impregnation-encapsulation strategy; and then, through in-situ photo-initiation polymerization, a covalent cross-linked functional polymer network is constructed in the pore channel, and stable packaging of the polymer is realized. In the water isotope separation period, external field conditions are regulated and controlled, the molecular conformation of a polymer chain is accurately controlled, and the separation performance is optimized. According to the invention, by virtue of an external field strengthening technology, the intramolecular / intermolecular interaction is destroyed, and the macromolecular chain is converted from contraction to stretching, so that more functional sites are exposed, and the water isotope separation material designed by the invention has a huge practical application prospect.

The invention relates to the technical field of functional polymer materials and environmental pollution control, in particular to hydrogen bond self-assembled bio-based aerogel as well as a preparation method and application thereof. Quaternized chitosan and tannic acid are self-assembled in a water phase through hydrogen bonds and electrostatic interaction to form a three-dimensional network structure, no cross-linking agent or organic solvent is added, the specific surface area of the bio-based aerogel BET is 2-10 m / g, and through the strong electrostatic adsorption effect between cationic groups in the quaternized chitosan and anionic dye molecules (such as Congo red), the cationic groups in the quaternized chitosan and the anionic dye molecules (such as Congo red) are separated from the anionic dye molecules. The material shows excellent dye removal efficiency and adsorption capacity under the conditions of normal temperature and normal pressure and hydrogen bonds provided by rich phenolic hydroxyl groups in tannic acid molecules and a pi-pi accumulation effect, the aerogel can quickly adsorb anionic dye, the adsorption process is efficient, the selectivity is high, the structure is stable, and the aerogel is degradable and can be applied to the field of dye adsorption. And the method has good reproducibility and repeated use stability, and has wide practical application and popularization prospects.

The invention provides a conjugated frame encapsulated graphene functionalized polymer anti-corrosion anti-impact double-effect heat-conducting coating and a preparation method thereof, the method comprises the following steps: step S1, mixing graphene with a bromine source to prepare brominated graphene; step S2, adding a halogen monomer, a conjugated alkyne monomer, a catalyst and the brominated graphene obtained in the step S1 into a mixed solution, and inducing a conjugated frame to perform in-situ packaging on the surface of the graphene in an inert gas atmosphere to prepare conjugated frame packaged graphene; s3, performing high-temperature carbonization treatment on the conjugated frame packaged graphene obtained in the step S2, and permeating a corrosion-resistant matrix to prepare a conjugated frame packaged graphene functional polymer; and step S4, loading a heat conduction material and a thickening agent on the graphene functionalized polymer obtained in the step S3 to prepare the graphene functionalized polymer coating. The coating prepared by the invention has the characteristics of continuous conjugate frame, hierarchical pore structure and corrosion resistance and impact resistance, and is suitable for the field of protection of efficient heat exchange equipment.

The invention belongs to the technical field of thermoelectric materials and functional polymer materials, and particularly relates to thermoelectric hydrogel based on synergistic enhancement of zwitterions and a polar solvent as well as a method and application of the thermoelectric hydrogel. The thermoelectric hydrogel is obtained through the steps that a precursor solution is subjected to a polymerization reaction to form a gel matrix, then the gel matrix is soaked in a soaking solution, potassium ferricyanide / potassium ferrocyanide redox couple is introduced, and the thermoelectric hydrogel is obtained, and the precursor solution is prepared from acrylamide, N-isopropylacrylamide, dimethyl sulfoxide, N, N-dimethylformamide, N, N-dimethylformamide, N, N-dimethylformamide, N, N-dimethylformamide, N, N-dimethylformamide and N, N-dimethylformamide. The photoinitiator is prepared by mixing N, N-dimethylformamide, 1-ethyl-3-methylimidazolium tetrafluoroborate, a zwitterionic monomer [2-(methylacryloyloxy) ethyl] dimethyl-(3-sulfopropyl) ammonium hydroxide, a cross-linking agent N, N '-methylene bisacrylamide, a photoinitiator and deionized water. The thermoelectric hydrogel prepared by the invention has high mechanical strength, high ductility and high Seebeck coefficient, and has better temperature resistance.

The invention discloses a hydrogen energy fuel cell catalyst carrier based on a graphene graft polymer, which is characterized in that two-dimensional graphene is used as a substrate, the surface of the two-dimensional graphene is modified with an oxygen-containing functional group, and a functional polymer branch chain containing nitrogen, sulfur or phosphorus heteroatoms is covalently grafted to form a local three-dimensional network winding structure; the carrier is loaded with platinum, palladium, ruthenium and other metal or alloy nanoparticles, the particle size is 2-8 nm, the loading capacity is 10%-40%, and the particles are anchored to polymer functional sites or reduced in situ to a graphene defect area through coordination. A polymer branch chain has pH responsiveness and can adjust the local proton transmission efficiency; the grafting density is 3-15 grafting points per 100 carbon atoms, so that high dispersion and stable anchoring of metal particles are effectively realized; the specific surface area of the carrier is 400-800m < 2 > / g, the electrochemical active area is not less than 80m < 2 > / g, and the activity retention rate is greater than 80% after 5000 circles of accelerated durability tests. The activity, the stability and the proton conduction performance of the catalyst are remarkably improved, and the catalyst is suitable for high-performance fuel cells.

The invention relates to the technical field of preparation of functional polymer materials, in particular to organic-inorganic hybrid self-repairing polyurethane and a preparation method thereof, and the organic-inorganic hybrid self-repairing polyurethane comprises the following components in parts by weight: 20-40 parts of polytetrahydrofuran glycol; 10 to 20 parts of modified polytetrahydrofuran glycol; 1-5 parts of a hydrophilic chain extender; 20 to 45 parts of isophorone diisocyanate; 1-10 parts of a chain extender I; 2-10 parts of a chain extender II and the like. An organic-inorganic hybridization method is adopted, a polysiloxane structure is introduced into a polyurethane cross-linked network, a polysiloxane area and polyurethane polyol macromolecules are connected through covalent bonds through interface modification, and phase separation is effectively avoided; besides, a chain extender with polyfunctional groups is adopted to prepare waterborne polyurethane which has a cross-linked structure and contains dynamic covalent bonds and dynamic non-covalent bonds, the hybrid polyurethane material is finally cured to form an organic-inorganic hybrid cross-linked structure, and the organic-inorganic hybrid polyurethane material has the characteristics of high strength and high self-repairing performance; wide application prospects are realized.

The invention discloses a high-weather-resistance fluorocarbon powder coating as well as a preparation method and application thereof in the field of functional polymer materials. The coating disclosed by the invention takes a fluorine-containing polyurethane grafted polytetrafluoroethylene copolymer and phosphorus-silicon synergistic modified nano clay as core modification components. Wherein the fluorine-containing polyurethane grafted polytetrafluoroethylene copolymer is polymerized with monomers such as fluorine-containing diol and isocyanate through a polytetrafluoroethylene emulsion under the protection of nitrogen to form a fluorocarbon-polyurethane double-main-chain structure, so that the crosslinking density and the photooxidation resistance are improved; phosphorus-silicon synergistic modified nano clay is subjected to interlayer intercalation, phosphorus source modification and silane coupling agent treatment to form a physical barrier layer, enhance interface bonding and hinder water vapor permeation. The formula of the coating further comprises an HDI tripolymer curing agent, rutile type titanium dioxide and other pigments and fillers and auxiliaries. The preparation method comprises the following steps: premixing all the components, extruding by double screws, tabletting and crushing, and carrying out jet milling. The product can be applied to the surface of a metal workpiece, and the weather resistance of the product in an extreme environment is remarkably improved.

The present disclosure provides a novel type of fiber monofilament for use in place of non-sustainable cotton. The fiber monofilaments comprise at least 50% by weight of non-regenerated microfibrillated cellulose (MFC), an amino-functional polymer component, and an epoxy-functional crosslinker. In addition, the present disclosure provides a product comprising the fiber monofilament and a method of making the fiber monofilament.

The invention belongs to the technical field of functional polymer composite caulking materials, and relates to a polyurethane caulking material based on shape memory assisted self-repairing and a preparation method thereof. The polyurethane caulking material is prepared from the following raw materials in parts by mass: a component A and a component B, the component A is prepared from 20 to 30 parts of isocyanate and 100 parts of polyhydric alcohol; and the component B comprises 1-13 parts of a sulfur-containing chain extender for providing dynamic disulfide bonds, 1-5.4 parts of a common chain extender, 0-30 parts of a plasticizer, 0.5-1.5 parts of a water removal agent and 20-40 parts of a solvent. During preparation, the component B and the component A are mixed at the temperature of 40-60 DEG C, defoamed at the temperature of 30-50 DEG C and then injected into a mold, and the polyurethane caulking material based on shape memory assisted self-repairing is obtained after curing. The problem that an existing polyurethane caulking material lacks self-repairing capacity after cracks are generated is solved.

The invention discloses a high-color-fastness washable polyethylene fabric and a preparation process thereof in the field of functional polymer materials. The high-color-fastness washable polyethylene fabric is prepared from the following raw materials: polyethylene resin, maleic anhydride-acrylic acid copolymer grafted polyethylene, dopamine-silane composite modified polyethylene, magnesium stearate and an antioxidant. Wherein the maleic anhydride-acrylic acid copolymer grafted polyethylene is prepared by copolymerizing maleic anhydride and acrylic acid and then blending and granulating with polyethylene, and carboxyl and acrylate groups are introduced to enhance the binding force with dye; the dopamine-silane composite modified polyethylene is prepared through polyethylene surface hydroxylation, dopamine self-polymerization modification and silane grafting reaction, and the acting force and hydrophobicity between fibers are doubly improved through a catechol group and an epoxy group. According to the prepared fabric, the color fastness and the washing resistance are remarkably improved, meanwhile, the original characteristics of light weight and chemical corrosion resistance of polyethylene are kept, and the application scene is expanded.

The invention discloses silicon-free fluorine-free hydrophobic bactericidal water-based polyacrylic resin as well as a preparation method and application thereof, and belongs to the technical field of water-based functional polymer coating materials. The resin is prepared from the following raw materials: deionized water, a non-special acrylic functional monomer component, a special acrylic functional monomer component, a polyvinyl alcohol modified nano zinc oxide component, an emulsifier component and an initiator component. On the basis of a'molecular bridge crosslinking-nanostructure coupling 'strategy, 1, 6-hexanediol diacrylate of a hydrophobic long alkyl chain is introduced into polyacrylic resin containing a tert-butyl chain to construct a crosslinking molecular bridge, so that synergistic hydrophobicity of tert-butyl and long-chain alkyl is promoted, and meanwhile, a polyvinyl alcohol modified nano zinc oxide component is designed and introduced; the efficient integration of hydrophobic barrier and antibacterial site functions is synergistically realized, a more environment-friendly multifunctional solution is provided for the field of functional finishing and protection of textiles such as medical protection, outdoor sports and household textiles, and the application prospect is wide.

The invention relates to the technical field of functional polymer composite materials, in particular to an intermediate film for laminated glass based on color generation of a photonic crystal structure and a preparation method of the intermediate film. The intermediate film comprises a thermoplastic resin matrix and a three-dimensional photonic crystal structure region dispersed in the thermoplastic resin matrix, wherein the three-dimensional photonic crystal structure region is formed by self-assembly of monodisperse microspheres, and the central wavelength of a photonic forbidden band of the region is located in a visible light range. According to the invention, a three-dimensional photonic crystal structure is constructed in the intermediate film, and structural color generation is generated by utilizing selective reflection of the photonic band gap effect on visible light with a specific wavelength. According to the laminated glass, the color is generated by interference of light instead of absorption of chemical pigments, so that the color can be continuously and regularly changed along with the change of an observation angle or an incident light angle, the dynamic and changing visual aesthetic feeling is given to the laminated glass, and the higher requirements of the fields of modern buildings, automobiles and the like on dynamic aesthetics and personalized appearance are met.

The invention relates to a method for operating an electrolysis plant (1, 20) comprising an electrolyzer (11) for generating hydrogen (H2) and oxygen (O2) as product gases. Water is supplied as a reactant and is split into hydrogen (H2) and oxygen (O2) on a proton-conducting membrane (21) made of a fluorine-free polymer (24), said polymer (24) comprising a non-functional polymer material having a functional hydrophilic group, wherein a product gas flow (5) is formed in a phase mixture comprising water (H2O) and a respective product gas, and a product gas flow is fed to a gas separator (3, 13) connected downstream of the electrolyzer (11). The release of an ionic decomposition product of the functional hydrophilic group of the membrane (21) is determined over the operating time, the time curve of the concentration of said decomposition product is determined, and a measurement of the operational degradation of the proton-conducting membrane (21) as a result of a release of the ionic decomposition product of the hydrophilic group is determined. The invention additionally relates to a corresponding electrolysis plant (1, 20) and to a measuring system for carrying out the method.

The invention discloses an internal curing agent for ultra-high performance concrete and a preparation method of the internal curing agent, and belongs to the technical field of preparation of concrete admixtures, the internal curing agent comprises the following components by weight: 650-700 parts of a slow release component A; 200 to 250 parts of an isolation and water retention component B; 50 to 150 parts of a shrinkage reducing component C; the slow-release component A is a mixed solution of a functional polymer containing a sulfonic acid group, an amide group, a carboxylic acid group and an ester group; the isolation water retention component B is a mixed solution composed of a polymer water retention component B1 and a surfactant coating component B2; the shrinkage reducing component C is prepared from an air entraining agent, a defoaming agent and water. When the internal curing agent disclosed by the invention is used for concrete, not only can the shrinkage of UHPC be effectively reduced, but also the influence on the workability and the setting time of the concrete is extremely small, and meanwhile, the early-stage and later-stage strength of the concrete can also be remarkably improved.

The invention discloses a preparation method and application of a high-sensitivity temperature-responsive cellulose-based structural color material, and belongs to the field of functional polymer materials. The preparation method comprises the following steps: adding an isopropanol solvent into a certain volume of aqueous solution to obtain an isopropanol dilute solution; hydroxypropyl cellulose is dissolved in an isopropanol dilute solution, a cholesteric liquid crystal structure is formed through self-assembly, a bright structural color is presented, and the hydroxy propyl cellulose structural color material is prepared. A hydroxy propyl cellulose structural color material is uniformly coated on the surface of a polydimethylsiloxane film containing carbon nanotubes, then the transparent polydimethylsiloxane film is used for sealing the hydroxy propyl cellulose structural color material, the temperature sensor with the visual structural color is prepared, and the temperature sensor with the visual structural color is attached to the skin of the human body and can display different colors along with temperature changes. The prepared structural color material is sensitive in response to temperature stimulation, rapid in color change and suitable for human body visual real-time temperature monitoring in the field of intelligent sensing.

The invention discloses a cellulose microcrystal reinforced degradable flame-retardant PLA composite material and a preparation method thereof, and belongs to the field of bio-based functional polymer materials. The composite material is prepared from the following components in parts by weight: 80 to 100 parts of polylactic acid (PLA), 3 to 10 parts of bamboo cellulose microcrystal, 3 to 10 parts of biomass polyphosphate, 1 to 5 parts of GO-g-PLA, 10 to 30 parts of PBAT toughening agent and 0.2 to 1 part of auxiliary agent. The preparation method comprises the following steps: (1) preparing high-crystallinity bamboo cellulose microcrystals by adopting a supercritical CO2 method; (2) preparing a GO-g-PLA interface compatilizer through graft polymerization; (3) synthesizing a biomass polyphosphate flame retardant by taking pentaerythritol and diphenolic acid as raw materials; and (4) melting, blending and extruding the components. Through the synergistic effect of a flame retardant-GO-BCMC three-dimensional network, the material has excellent mechanical properties (the tensile strength is 45-47 MPa, and the impact strength is 10-12 kJ / m), high flame retardance (LOI is 28-29%, UL-94 V-0 level) and environmental friendliness (the 180-day biodegradation rate gt); the composite material can be widely applied to the fields of electronic and electric appliances, automotive trim, medical materials and the like.

The invention discloses a high-ionic-conductivity cement-based material based on in-situ polymerization of double ionization monomers as well as a preparation method and application of the high-ionic-conductivity cement-based material. The material comprises a cement base material and a performance additive, wherein the performance additive comprises a functional polymer, a polymer network modifier, an initiator, a cross-linking agent, alkali metal salt and deionized water. The functional polymer is a mixture of a cationic polymerizable monomer and an anionic polymerizable monomer. The preparation method comprises the following steps: stirring and dissolving a functional polymer, a polymer network modifier, alkali metal salt, an initiator and a cross-linking agent in deionized water to obtain a modification additive, uniformly mixing the modification additive and a cement base material, merging into a mold, standing, demolding, and curing to obtain the conductive cement material high ionic conductivity cement-based material. The ionic conductivity of the material can reach 10 <-2 > S / cm or above under normal-temperature and normal-humidity conditions, and the material has high strength and is suitable for the fields of corrosion prevention, structural health monitoring, cement-based energy storage electrodes and the like.

The invention belongs to the technical field of treatment of harmful substances in cigarettes, and particularly relates to natural polysaccharide aerogel for cigarettes. The preparation method comprises the following steps: S1, dispersing the polysaccharide, the filler and the cross-linking agent in a solvent, and stirring by using a stirrer until the materials are completely dissolved; s2, adding a hydrophobic modifier, an ion exchange modifier, a surfactant and a functional polymer into the polysaccharide solution, and performing stirring reaction by using a heating stirrer to obtain a modified solution; s3, cooling the modified solution to room temperature by using cooling equipment, then pouring the solution into a mold for gelation, then putting the solution into freezing equipment, and cooling the solution until the solution is completely frozen to obtain frozen gel; and S4, transferring the frozen gel into a freeze dryer, and carrying out sublimation drying under a vacuum condition to obtain the natural polysaccharide aerogel. The natural polysaccharide aerogel prepared by the invention can remarkably improve the filtering performance of a filter tip, so that the content of tar and other harmful substances generated in the smoking process can be reduced.

The invention relates to high-temperature-resistant and thermo-oxidative resin, a synthesis method and a preparation method of a composite material of the high-temperature-resistant and thermo-oxidative resin, and belongs to the technical field of functional polymer materials. The high-temperature-resistant and heat-oxygen-resistant resin is silicon and boron-containing phthalonitrile copolymerized and modified phenolic aldehyde type cyanate ester resin; wherein the molecular formula is shown in the specification.

The invention discloses a phase change self-degradation temporary plugging agent which comprises the following components in parts by mass: 4-15 parts of a functional polymer solid; 5-70 parts of a functional solvent; 10 to 80 parts of water; the invention further discloses a preparation method of the phase-change self-degradation temporary plugging agent, the phase-change self-degradation temporary plugging agent is suitable for the technical fields of oilfield chemistry and colloidal chemistry, and compared with particle and fiber temporary plugging agents, the phase-change self-degradation temporary plugging agent has the advantages that the pore throat size does not need to be considered, and broad-spectrum plugging can be realized; compared with a conventional gel temporary plugging agent needing additional plug removal, the temporary plugging agent can be subjected to in-situ self-degradation plug removal in a reservoir; the temperature window is large, the phase transition time is adjustable, meanwhile, the plugging agent has the characteristics of broad-spectrum plugging and self-degradation plugging removal, the actual production requirement can be met, and the green mining policy can be implemented.

The invention relates to the technical field of functional polymer materials, in particular to an inorganic crystal carbonization alleviator as well as a preparation method and application thereof. The inorganic crystal carbonization alleviator is prepared from raw materials including a solid component and a liquid medium, wherein the mass ratio of the liquid medium to the solid component is (1: 0.5)-(1: 3); the solid component comprises a component containing calcium carbonate and / or calcium silicate and a component containing silicon dioxide, and the mass ratio of the component containing calcium carbonate and / or calcium silicate to the component containing silicon dioxide is (50-80): (20-50). According to the inorganic crystal carbonization alleviator, the calcium silicate mineral is prepared from the calcium carbonate-containing and / or calcium silicate-containing material and the silicon dioxide-containing material, the carbonization resistance of the material is remarkably improved, and the inorganic crystal carbonization alleviator has the advantages of being wide in raw material source and low in cost and can improve and enhance the carbonization resistance when being applied to Portland cement and hypersulfate cement systems.

The invention belongs to the field of functional polymer materials, and particularly relates to a temperature-sensitive core-shell moisture absorption microsphere based on a biomass source and a preparation method. The preparation method comprises the following steps: dissolving methyl cellulose in water to prepare a solution A; dissolving calcium lactate and LiCl in water according to a mass ratio of 1: (2-14) to prepare a solution B; uniformly mixing the two to obtain functionalized core liquid; and dropwise adding the core liquid into a sodium alginate coagulating bath to carry out ionic cross-linking reaction to form gel microspheres, and washing and freeze-drying to obtain the product. According to the invention, a stable structure with moisture absorption salt / temperature-sensitive methyl cellulose as a core and calcium alginate gel as a shell is constructed in one step through a reverse instillation molding technology. The structure can effectively prevent moisture absorption salt from leaking, efficient release of moisture can be achieved at the low temperature by means of the temperature-sensitive characteristic of methyl cellulose, and desorption energy consumption for taking water from air is remarkably reduced. The raw materials are green, the process is simple, and the prepared microspheres are good in moisture absorption performance, high in cycling stability and suitable for atmospheric moisture collection.

The invention discloses an antibacterial coating for a concrete surface as well as a preparation method and application of the antibacterial coating, and relates to the technical field of functional polymers. The antibacterial coating for the concrete surface is prepared from the following raw materials in parts by weight: 100 parts of a monomer mixture, 0.7 to 3.1 parts of an initiator, 0.3 to 2.0 parts of a chain transfer agent and 75 to 125 parts of a solvent, wherein the monomer mixture comprises a methacrylate monomer, an acrylate monomer, sodium acrylate, a urea methacrylate monomer and a capsaicin derivative in a molar ratio of (12-60): (20-60): (2-10): (2-10): (1-5). The antibacterial coating for the concrete surface is easy to prepare and operate, low in cost and environmentally friendly, and raw materials are easy to obtain; the capsaicin derivative monomer is introduced into the antibacterial coating for the concrete surface, so that the antibacterial activity of the resin is improved, and the problem of biological fouling of a concrete structure in marine infrastructure is solved.

The invention discloses an anti-ultraviolet solar cell backboard film and a preparation method thereof, and relates to the technical field of solar cell backboards, the anti-ultraviolet solar cell backboard film comprises a first anti-ultraviolet functional layer, a polyester base layer and a second anti-ultraviolet functional layer from top to bottom in sequence; the first uvioresistant functional layer and the second uvioresistant functional layer are independently prepared from the following raw materials: a functional polymer, 2-acrylamido-2-methylpropanesulfonic acid, 1, 3-bis (oxiranyl methyl)-5-(2-propenyl)-1, 3, 5-triazine-2, 4, 6 (1H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H, 3H The invention relates to a high-temperature-resistant nano-emulsion which is prepared from N-(4-cyano-3-trifluoromethylphenyl) methacrylamide, N-(4-cyano-3-trifluoromethylphenyl) methacrylamide, a nano-assistant, a coupling agent, an initiator, polyphosphoric acid and phosphorus pentoxide. The backboard film is good in ultraviolet aging resistance, good in interlayer peel strength and excellent in barrier property.

The invention relates to the technical field of functional polymer materials, in particular to a metal and organic multifunctional composite coating material and a preparation method thereof. Comprising a polyurethane prepolymer, a functionalized silane coupling agent, zinc oxide nanoparticles, alumina micropowder, a fluorosilicone modified polyacrylate emulsion, a self-repairing microcapsule, a nonionic dispersant and deionized water. According to the invention, by constructing a stable metal / organic composite structure, the integration of a super-hydrophobic, self-repairing and antibacterial multifunctional coating is realized, and the structural stability and environmental adaptability of the coating are effectively improved.