395 results about "Halloysite" patented technology

The invention relates to the technical field of cables, and provides a fireproof flame-retardant 10kV power cable and a preparation method thereof. The fire-resistant flame-retardant 10kV power cable comprises a conductor and a fire-resistant flame-retardant layer, the fireproof flame-retardant layer is prepared from the following raw materials in parts by weight: 35 to 45 parts of linear low-density polyethylene, 40 to 50 parts of ethylene-vinyl acetate copolymer, 25 to 30 parts of modified aluminum hydroxide, 5 to 8 parts of polyethylene grafted maleic anhydride, 10 to 12 parts of phosphate modified halloysite nanotube, 5 to 8 parts of ZIF-8 loaded zinc borate core-shell particles, 15 to 20 parts of magnesium hydroxide and 2 to 3 parts of silane coupling agent. 0.5 to 1 part of antioxidant, 0.5 to 1 part of calcium stearate and 1 to 1.5 parts of polyethylene wax. According to the cable prepared in the invention, the situation that a conductor is exposed and the fire resistance is lost due to cracking and falling under long-time high-temperature baking is avoided; the continuous effectiveness of the flame retardant at high temperature is improved.

The invention belongs to the technical field of thermal insulation material preparation, and discloses modified silicon dioxide aerogel powder and a preparation method thereof, aerogel slurry and a preparation method and application thereof. The preparation method of the modified silicon dioxide aerogel powder comprises the following steps: (1) modifying a halloysite nanotube by using dodecyl methacrylate and pentafluorophenyl methacrylate; (2) preparing silica sol; (3) adding the modified halloysite nanotube into silica sol to prepare wet gel; and (5) preparing the wet gel into modified silicon dioxide aerogel powder. According to the invention, the modified silicon dioxide aerogel powder is used for preparing aerogel slurry, and the aerogel slurry is used for preparing the aerogel heat insulation felt. The aerogel heat insulation felt prepared in the invention shows low heat conductivity, and can effectively block heat transfer; the aerogel heat insulation felt prepared by the invention has good mechanical properties, and meanwhile, the powder falling amount is small, so that transportation is facilitated, and the aerogel heat insulation felt can adapt to heat insulation application in various scenes.

The invention discloses a halloysite / zirconium phosphate nano composite material, a preparation method thereof and application of the halloysite / zirconium phosphate nano composite material in heavy metal adsorption, and belongs to the technical field of materials. The halloysite / zirconium phosphate nano composite material is formed by growing nano zirconium phosphate particles on the inner wall of a halloysite nanotube, and the preparation process of the halloysite / zirconium phosphate nano composite material comprises the following steps: dispersing the halloysite nanotube in a solvent, adding a zirconium salt solution, carrying out ultrasonic treatment to obtain a halloysite-zirconium ion dispersion liquid, carrying out circulating vacuum treatment on the halloysite-zirconium ion dispersion liquid, and carrying out vacuum drying to obtain the halloysite / zirconium phosphate nano composite material. And carrying out solid-liquid separation, putting the obtained solid into phosphoric acid or a phosphate solution to carry out phosphating reaction, and washing and drying the obtained product to obtain the product. Zirconium phosphate nanoparticles in the composite material are small in size, uniform in distribution and good in loading stability, show high adsorption activity on heavy metal ions, can be widely applied to adsorption of the heavy metal ions in a solution system, are good in stability and can be repeatedly used for multiple times.

The invention relates to the technical field of corrosion resistance, in particular to a corrosion-resistant and wear-resistant copper insert and a preparation method thereof.The copper insert is subjected to plating treatment in an ionic liquid electroplating mode, then the surface of a plating layer is subjected to hole sealing treatment, and a nickel-copper-composite halloysite nanotube layer is electrically deposited on the surface of the formed copper insert; the preparation method comprises the following steps: taking a halloysite nanotube as a nano loader of a corrosion inhibitor, and coating with dopamine to obtain a composite halloysite nanotube; in the hole sealing liquid, the composite halloysite nanotube is used as a filler, silane modified polyurethane is used as a base material, the silane modified polyurethane is a prepolymer synthesized by using isophorone diisocyanate and polytetramethylene ether glycol as raw materials, octylamine ring-opened 3-(2, 3-epoxypropoxy) propyltrimethoxysilane is used as a chain extender, and the silane modified polyurethane is used as the base material. And 2-(perfluorodecyl) ethanol and aminopropyltriethoxysilane are used as end-capping reagents, so as to prepare the high-temperature-resistant coating.

The invention discloses a super-strong mute building drainage pipe and a preparation method thereof, and relates to the technical field of high polymer materials. Comprising the following raw materials in parts by mass: 100 parts of high-density polyethylene, 5-7 parts of a cold-resistant toughening agent, 8-12 parts of a synergist, 8-10 parts of a sound insulation filler and 0.3-0.5 part of an antioxidant. By introducing the synergist prepared from the components such as polyamine polyether methylene phosphonic acid, zinc nitrate hexahydrate, magnesium nitrate hexahydrate and the like, the sound insulation, flame retardance and smoke suppression capabilities of the drainage pipe can be effectively improved; by introducing the sound insulation filler prepared from the modified halloysite nanotubes, hydroxyl-terminated polydimethylsiloxane, aziridine cross-linking agent and the like, the sound insulation, flame retardance and smoke suppression capabilities of the drain pipe are further improved. Therefore, the drainage pipe prepared by the invention has a wider application prospect.

The invention discloses modified halloysite, an oxidative desulfurization catalyst and a preparation method and application thereof, and belongs to the technical field of oil product oxidative desulfurization. The preparation method of the modified halloysite comprises the following steps: S1, mixing and stirring halloysite, sodium tungstate and water to obtain an intermediate product W / HNT; s2, the intermediate product W / HNT, cyclohexane and hexadecyl trimethoxy silane are mixed and stirred, and the modified halloysite is obtained. In addition, the invention also provides an oxidative desulfurization catalyst which comprises the modified halloysite prepared by the preparation method or the modified halloysite. In addition, the invention also provides the modified halloysite prepared by the preparation method or application of the modified halloysite in oxidative desulfurization. The modified halloysite prepared by the preparation method provided by the invention realizes efficient oxidative desulfurization in fuel oil.

The invention relates to the technical field of nylon materials, and discloses a low-moisture-absorption nylon composite material and a preparation method thereof. The nylon composite material prepared by the invention is prepared from the following raw materials in parts by weight: 40-50 parts of nylon 66, 35-55 parts of modified nylon 6, 25-35 parts of reinforcing filler, 0.5-2 parts of a lubricant and 0.5-1 part of an antioxidant, the nylon 66 / modified nylon composite material is prepared by taking nylon 66 and modified nylon 6 as substrate materials, adding auxiliaries such as reinforcing filler, mixing, extruding and granulating, the modified nylon 6 is introduced, so that the toughness of the composite material is improved, and the water absorption rate is reduced; due to the introduction of the reinforcing filler, the synergistic effect of halloysite and boron nitride can be utilized, the flame retardant property of the composite material is improved, and the water absorption rate is further reduced.

The invention relates to the technical field of building materials, and particularly discloses interior wall waterproof putty powder and a preparation method thereof. Interior wall water-resistant putty powder is prepared from sulphoaluminate cement, nano heavy calcium powder, silica fume, a double-MOF composite nanotube, modified diatomite, polypropylene fiber, nano titanium dioxide, a defoaming agent, a dispersing agent and a mildew preventive, and the double-MOF composite nanotube is obtained by loading copper trimesic acid in an inner cavity of a halloysite nanotube and loading dimethyl imidazole cobalt on the outer wall of the halloysite nanotube; the modified diatomite is obtained by modifying diatomite with stearic acid. The interior wall waterproof putty powder provided by the invention adopts the double-MOF composite nanotube as a core functional material, and under the synergistic effect of multiple components, the water resistance and air permeability of a putty layer are effectively enhanced.

The invention discloses a manufacturing process of an easy-to-clean antibacterial ceramic product, and belongs to the technical field of ceramic product production. The preparation process comprises the following steps: mixing potassium feldspar, quartz, calcite, wollastonite and frit, grinding, sieving, adding deionized water I, carrying out wet ball milling by using flint cobblestones to prepare premixed glaze slip, sanding to prepare glaze slip I, uniformly spraying the glaze slip I on a ceramic green body, and drying in a drying kiln to form a substrate glaze surface; mixing modified halloysite and deionized water II, carrying out wet ball milling and sanding by using the flint cobblestones to prepare glaze slip II, uniformly spraying the glaze slip II on the glaze surface of the substrate, standing, feeding into a tunnel kiln, and carrying out primary firing to obtain the easy-to-clean antibacterial ceramic product. The glaze surface is smoother and more compact, the easy-cleaning performance of the glaze surface is improved, the antibacterial agent is firmly attached to the glaze surface, the antibacterial durability is enhanced, and the antibacterial performance is improved.

The invention belongs to the technical field of high-molecular polymer floor materials, and particularly relates to an anti-warping and anti-aging plastic floor base material, a floor and a preparation method. A floor base material is prepared from PETG resin, ABS resin, a compatilizer, activated halloysite / calcium carbonate composite powder, a chain extender, a lubricant, a coupling agent, an antioxidant and a light stabilizer according to a certain ratio. Floor products can be manufactured by adopting the floor base material provided by the invention to be coated with a color film, a transparent film, a mute layer and the like. A floor made of the floor base material has the advantages of being low in warping, resistant to cracking and arching, free of halogen, environmentally friendly and the like, and belongs to a green low-carbon PVC-free environment-friendly floor.

The invention discloses a cold-resistant and anti-freezing cable and a preparation method thereof, and relates to the technical field of cables. The cold-resistant and anti-freezing cable sequentially comprises a sheath layer, an insulating layer and a conductive core layer from outside to inside, the sheath layer is prepared from a sheath material, and the sheath material comprises polyvinyl chloride resin, dioctyl terephthalate, modified polyurethane, epoxidized soybean oil, aluminum hydroxide, magnesium hydroxide, a calcium-zinc stabilizer and modified halloysite. The sheath material prepared by the invention has good mechanical properties, antibacterial properties and anti-aging properties, and is suitable for cold-resistant and anti-freezing cables.

The invention discloses a degradable packaging material and a preparation method thereof, and relates to the technical field of packaging materials. When the degradable packaging material is prepared, firstly, hydroxyl-terminated polylactic acid reacts with 3-chloropropionyl chloride, then reacts with 1, 2-bis (vinyl phosphine) ethane, and finally reacts with 4-mercaptophenylboronic acid to prepare modified polylactic acid; secondly, enabling the halloysite nanotube pretreated by trimethoxy (2-phenethyl) silane to react with 3, 4-dihydroxy benzoic acid, so as to obtain a modified halloysite nanotube; finally, mixing and hot-rolling the modified polylactic acid, the modified halloysite nanotube and cellulose to obtain the degradable packaging material. The degradable packaging material prepared by the preparation method disclosed by the invention has excellent degradability, antibacterial property and flame retardance.

The invention relates to the field of composite coatings, and discloses a wave-absorbing high-entropy alloy composite coating and a preparation method thereof.According to the wave-absorbing high-entropy alloy composite coating, mixed powder is deposited on the surface of a base body in a laser cladding mode to form a pre-coating, then ion nitriding treatment is conducted on the pre-coating, and the wave-absorbing high-entropy alloy composite coating is obtained. The mixed powder comprises high-entropy alloy powder, a functional additive, core-shell antifriction powder and a binder; the functional additive is prepared by taking halloysite, biomass chitosan and ferric chloride hexahydrate as raw materials, adopting a hydrothermal method to obtain an iron modified halloysite / carbon material, and then performing carbon thermal reduction reaction; the core-shell antifriction powder is prepared by uniformly stacking outer-layer aluminum oxide on the surface of nano hexagonal boron nitride by using a non-uniform nucleation method; the ion nitriding treatment process parameters are as follows: nitriding is performed for 58-62 h at the temperature of 540-560 DEG C, flow velocity thermal decomposition ammonia is adopted as a nitrogen source, and the prepared composite coating is high in hardness and good in wear resistance, corrosion resistance and wave absorbing performance.

The invention relates to the technical field of concrete, and particularly discloses recycled concrete with high heat-conducting property and a preparation method thereof. The invention discloses recycled concrete with high heat-conducting property. The recycled concrete is prepared from the following raw materials in parts by weight: cement, mineral powder, fly ash, coarse aggregate, fine aggregate, a heat-conducting agent-halloysite nanotube composite material, modified polyacrylonitrile-based carbon fiber, water and an additive. The preparation method comprises the following steps: S1, mixing and stirring the cement, the mineral powder, the fly ash, the coarse aggregate and the fine aggregate; s2, adding a heat conduction agent-halloysite nanotube composite material, modified polyacrylonitrile-based carbon fibers and 50% of water, and mixing and stirring; and S3, adding the additive and the residual water, and mixing and stirring to prepare the recycled concrete with high heat-conducting property. The recycled concrete with high heat-conducting property prepared by the invention has relatively high breaking strength and compressive strength and good heat-conducting property.

The invention relates to a preparation method and application of an iron-doped basic cobalt silicate electrocatalyst. The method comprises the following steps: (1) placing natural halloysite powder in a muffle furnace, dispersing calcined halloysite in hydrochloric acid, and stirring to obtain a first suspension; (2) transferring the first turbid liquid into a reaction kettle, sealing, and reacting at 100-140 DEG C for 10-14 hours to obtain a silicon oxide (SiOx) nanotube; and (3) adding the SiOx nanotube, cobalt nitrate hexahydrate and ferric nitrate nonahydrate into a mixed solvent, stirring, dropwise adding ammonia water, then adding NH4Cl, continuously stirring for 20-40 minutes, transferring the obtained turbid liquid into a reaction kettle, sealing, and reacting at 130-170 DEG C for 12-20 hours to obtain the CoFeSi electrocatalyst. The CoFeSi electrocatalyst synthesized by the method has the characteristics of low cost, simplicity in synthesis, high oxygen evolution efficiency, excellent stability and the like.

The invention relates to the technical field of functional coating materials, in particular to a zwitterionic polymer / halloysite nanotube-based coating and a preparation method of self-cleaning glass. The preparation method of the self-cleaning glass comprises the following steps: soaking treated glass in cleaning slurry containing HNTs-NH2 and a zwitterionic polymer SBMA-co-AA, washing with deionized water, and drying in a vacuum drying oven at 60 DEG C to finally obtain the glass with the self-cleaning and anti-fog functional coating. The self-cleaning coating is prepared from the following raw materials in parts by weight: a zwitterionic polymer, MES, EDC, NHS, HNTs-NH2 and deionized water. The self-cleaning coating provided by the invention has super-hydrophilicity, anti-pollution and anti-fog functions and self-healing capability, can effectively remove pollutants on the surface of glass, improves the self-cleaning effect and prolongs the service life.

The invention belongs to the technical field of ceramic ink, and particularly discloses crystal change ink, a preparation method thereof and a ceramic rock plate. The crystal-changing ink comprises the following raw material components: crystal-changing glaze, an inorganic active agent and an ink auxiliary agent, wherein the inorganic active agent is selected from at least one of nano titanium dioxide, nano zinc oxide and nano aluminum oxide; the crystal-changing glaze is prepared from the following raw material components in parts by weight: 5 to 15 parts of halloysite, 20 to 30 parts of nepheline, 10 to 25 parts of feldspar, 3 to 8 parts of hydromica, 5 to 15 parts of wollastonite, 15 to 30 parts of quartz, 10 to 20 parts of calcium carbonate and 2 to 7 parts of zinc oxide. All the raw materials in the crystal-changing glaze are subjected to chemical reaction and physical change in the high-temperature firing process to form a stable crystal structure; the inorganic active agent further promotes the growth of crystals while improving the stability, adhesive force and optical performance of the ink, and the glaze surface generates unique texture and color changes under the combined action of the inorganic active agent and the ink.

The invention relates to the technical field of oil well treating agents, in particular to a high-temperature-resistant oil well cement composite reinforcing agent and a preparation method thereof. The high-temperature-resistant oil well cement composite reinforcing agent is prepared from the following materials in parts by weight: 40 to 50 parts of silane coupling agent modified zirconium silicate, 20 to 25 parts of red mud-based activated micro powder, 8 to 10 parts of fly ash, 10 to 12 parts of silane coupling agent modified microcapsules, 4 to 6 parts of magnesium borate whiskers, 2 to 3 parts of carbon nanotubes and 1 to 1.5 parts of halloysite. According to the high-temperature-resistant oil well cement composite reinforcing agent disclosed by the invention, the cement strength of the high-temperature-resistant oil well cement composite reinforcing agent in a high-temperature environment is improved, and the stability of the high-temperature-resistant oil well cement composite reinforcing agent in storage and use processes is improved.

The invention belongs to the technical field of high polymer materials, and particularly relates to a high-strength plastic film and a preparation method thereof. The high-strength plastic film is prepared from the following raw materials in parts by weight: 80 to 90 parts of polylactic acid, 5 to 10 parts of polyurethane resin, 2 to 6 parts of flame-retardant modified halloysite, 2 to 6 parts of antioxidant modified halloysite, 0.5 to 2 parts of silane coupling agent and 1 to 3 parts of plasticizer. According to the invention, the halloysite is subjected to flame-retardant modification and antioxidant modification and is added into a PLA matrix, so that the halloysite can be used as an inorganic filler to reinforce the rigidity and strength of the PLA matrix, and also has flame-retardant and antioxidant dual functions; meanwhile, the tubular structure of the halloysite nanotube can form a zigzag path in a PLA matrix, so that diffusion of water vapor and oxygen is delayed, the water vapor permeation amount and the oxygen permeation coefficient are reduced, and the halloysite nanotube can be applied to food packaging to prolong the fresh-keeping period of food.

The present invention provides a modified silica aerogel powder having a higher water repellency and a larger contact angle, and a method for producing the same. At the same time, the present invention provides an aerogel slurry having a lower thermal conductivity and a method for producing the same. The present invention also provides a method for producing an aerogel insulating felt having low thermal conductivity, high mechanical strength, and capable of relatively well resolving the problem of powder shedding. The method for producing the modified silica aerogel powder includes the steps of (1) modifying halloysite nanotubes with dodecyl methacrylate and pentafluorophenyl methacrylate, (2) preparing a silica sol, (3) adding the modified halloysite nanotubes to the silica sol to prepare a wet gel, and (5) preparing the wet gel into the modified silica aerogel powder. The present application also provides a method for producing an aerogel slurry from the modified silica aerogel powder, and a method for producing an aerogel insulating felt from the aerogel slurry.

The invention relates to the field of insulators, in particular to an anti-pollution flashover ceramic insulator and a preparation method thereof. The glaze layer is prepared from the following raw materials in parts by weight: 40-50 parts of potassium feldspar, 10-15 parts of Suzhou clay, 10-15 parts of calcite, 15-20 parts of quartz, 1-5 parts of aluminum oxide, 1-5 parts of magnesium oxide and 5-10 parts of modified halloysite nanotubes; the ceramic insulator is characterized in that a modified halloysite nanotube is loaded with a dialkyl dithiocarbamic acid metal salt-amino triazine copolymer, the glaze layer is the key for long-term use of the ceramic insulator in a severe environment, and the ceramic insulator is endowed with certain antifouling performance and photocatalytic performance, so that the service life of the insulator is prolonged, the service life of the ceramic insulator is prolonged, and the service life of the ceramic insulator is prolonged. The safe and stable operation of the power transmission line is ensured, and the maintenance cost of line operation is reduced.

The invention provides a halogen-free flame-retardant TPU (thermoplastic polyurethane) material and a preparation method thereof, and the preparation method comprises the following steps: taking TPU to be subjected to internal mixing in an internal mixer, adding flame-retardant aerogel particles after the TPU is completely molten, and taking out after internal mixing; and adding the mixture into a tablet press for tabletting to obtain the halogen-free flame-retardant TPU material. A hybrid three-dimensional network is constructed by adopting a mode of combining vinyl modified aluminum nitride and a furan group grafted halloysite nanotube, meanwhile, vinyl modification is performed on aluminum nitride, and the furan group is grafted on the halloysite nanotube, so that reversible Diels-Alder reaction can be performed on the aluminum nitride and the halloysite nanotube to form a thermal conductivity network, and the thermal conductivity of the halloysite nanotube is improved. According to the present invention, the flexible carboxylated cellulose nano-fibers, the aluminum nitride and the halloysite nano-tubes are added to the TPU, such that the heat is taken away and the ignition time is prolonged in the initial combustion stage, and the multi-stage compact and stable carbon layer formed based on the flexible carboxylated cellulose nano-fibers, the aluminum nitride and the halloysite nano-tubes can break the heat conduction path, prevent the heat transfer and reduce the release of the smoke and the combustible gas during the combustion so as to improve the flame retardation of the TPU.

The invention relates to the technical field of phase-change materials, and discloses a light-operated composite phase-change material catalyst and a preparation method and application thereof, and a light-operated phase-change composite material is a paraffin-encapsulated metal M / halloysite / sodium alginate composite phase-change material; according to the metal M / halloysite / sodium alginate composite phase change material for packaging the paraffin, halloysite / sodium alginate aerogel loaded by metal M nanoparticles is used as a supporting material, and the paraffin is packaged in the metal M / halloysite / sodium alginate composite phase change material. According to the invention, the metal M / halloysite / sodium alginate composite phase change material for packaging paraffin is prepared by using the halloysite nanotube, the aerogel in the invention has a relatively large paraffin encapsulation amount, the encapsulation efficiency can reach up to 86%, and the phase change material can still maintain good mechanical and chemical stability after multiple heat absorption and release cycles. The melting and solidification of paraffin in the composite phase change material are controlled by turning on and turning off the light source, and the exposure and shielding of active sites are realized, so that the catalytic reaction is accurately started and stopped, and the complete starting and pausing of the reaction are realized.

The invention relates to the technical field of new materials, and discloses a flame-retardant modified halloysite grafted waterborne polyurethane material, three flame-retardant elements N, P and S are introduced to the surface of halloysite, so that the obtained waterborne polyurethane material has excellent flame-retardant property, the surface of a halloysite tube is organically modified, and the flame-retardant property of the halloysite tube is improved. The self-agglomeration of the halloysite nanotubes can be effectively inhibited, and meanwhile, the halloysite enables a polyurethane molecular chain to be grafted on the halloysite in situ through the terminated hydroxyl, so that the dispersity of the halloysite in a polyurethane matrix can be effectively enhanced, a cross-linking center is formed, the compatibility of the polyurethane and the halloysite at a molecular level is achieved, and the self-agglomeration of the halloysite nanotubes can be effectively inhibited. The halloysite is added, so that the microphase separation structure of the composite material is influenced, the mechanical property of polyurethane is improved, the halloysite with high length-diameter ratio can effectively limit the movement of a polyurethane molecular chain, and the thermal stability of the composite material is improved.

The invention discloses a preparation method of a wear-resistant super-hydrophobic coating with double covalent bonding interfaces, which comprises the following steps: (1) sequentially adding deionized water, ammonia water and halloysite into absolute ethyl alcohol, continuously stirring under a water bath condition, then slowly dropwise adding tetraethoxysilane into the mixture, keeping high-speed stirring, and cooling to room temperature; nano silicon dioxide particles are generated on the surface of the halloysite in situ, and HNTs-SiO2 micro-nano particles are formed; (2) slowly dropwise adding a low-surface-energy substance into the mixed solution in which the micro-nano particles are generated in the step (1), and continuously stirring in a water bath to obtain a super-hydrophobic suspension; collecting precipitates after solid-liquid separation, and then drying, grinding and screening to obtain super-hydrophobic composite particles; and (3) dispersing waterborne polyurethane resin and the super-hydrophobic composite particles in the step (2) in deionized water containing a nonionic surfactant, uniformly mixing to obtain a coating, spraying the obtained coating on the surface of a substrate, and curing to obtain the wear-resistant super-hydrophobic coating.

The invention belongs to the technical field of polyvinyl chloride materials, and particularly relates to a supported co-stabilizer, a composite heat stabilizer, a PVC material and a preparation method and application thereof. According to the invention, halloysite modified by a coupling agent is used as a carrier, and MOFs are loaded to obtain the supported co-stabilizer. Wherein the interface compatibility of the modified halloysite and the MOFs is improved, so that agglomeration of the MOFs is inhibited, stress concentration is avoided, and thermal stable components are uniformly distributed; meanwhile, a rigid framework of the halloysite can be embedded among PVC molecular chains to compensate strength loss caused by the heat stabilizer, and a rigid crystal structure of the MOFs serves as an auxiliary reinforcement phase; in addition, MOFs efficiently capture hydrogen chloride generated by degradation of PVC, block conjugate discoloration, scavenge free radicals and delay aging. Under the synergistic effect of the two components, the heat stability and color stability of the further prepared PVC material are remarkably improved, and the mechanical property is powerfully guaranteed.

The invention discloses an adsorption material for adsorbing pterocarya stenoptera essential oil and a preparation method and application thereof, and belongs to the technical field of adsorption materials, the adsorption material for adsorbing the pterocarya stenoptera essential oil comprises the following raw materials: halloysite powder, Fe (NO3) 3.9 H2O, an imidazole modifier, triethylamine, the pterocarya stenoptera essential oil, Zn (NO3) 2.6 H2O and the like. The preparation method comprises the following steps: mixing magnetic halloysite and a silanization reagent, and then mixing the mixture with an imidazole modifier, pterocarya stenoptera essential oil 1 and the like to obtain Im-MHNT; the preparation method comprises the following steps: dissolving the Im-MHNT and Zn (NO3) 2.6 H2O to obtain ZIF67-MHNT; the preparation method comprises the following steps: mixing an imidazole modifier and dichloroalkane to obtain Cl-IL; putting the ZIF67-MHNT, the Cl-IL and the pterocarya stenoptera essential oil 2 into xylene, uniformly mixing, and heating to obtain the adsorption material. The adsorption material disclosed by the invention has high selective adsorbability and adsorbability on the pterocarya stenoptera essential oil.

An iron phosphate material and a preparation method therefor, relating to the technical field of materials. According to the method, a hydrothermal system having high cost performance is still used as a basis; when raw materials are conventionally introduced, urea-intercalated halloysite nanotubes are used as additives for mixing; the urea-intercalated halloysite nanotubes can slowly release urea in a hydrothermal process to maintain a stable pH balance of the system; and the urea in intercalation layers has improved high-temperature stability and is prevented from rapid decomposition due to high temperature and high pressure of the hydrothermal system in an initial phase of a reaction, so that the final prepared iron phosphate material has an ideal structural morphology. The lithium iron phosphate positive electrode material prepared from an iron phosphate precursor obtained by the method has excellent electrochemical performance.

This disclosure relates to methods of forming a zeolite composition, the method comprising calcining one or more clay mineral compositions to form metakaolin, wherein the one or more clay mineral compositions may comprise greater than or equal to 10 wt. % halloysite, forming a slurry by combining at least the metakaolin, a shape selective zeolite, a basic compound, silica particles, and a templating agent, hydrothermally treating the slurry to form a hydrothermal product, calcining the hydrothermal product to form a zeolite product, combining the zeolite product and at least one metal precursor, wherein the at least one metal precursor may comprise a manganese precursor, a phosphorous precursor, or both a manganese precursor and a phosphorous precursor to form a zeolite composition comprising manganese, phosphorus, or both manganese and phosphorous.

The present invention belongs to the technical field of enameled copper flat wires, and relates to a direct-weldable polyurethane enameled copper flat wire and a preparation process therefor. In the present invention, by means of adding a rare-earth element, halloysite nanotubes, silicon carbide and graphene, a polyurethane paint in an intermediate layer is modified, and the performance of the polyurethane paint in the intermediate layer is thus effectively improved. By means of adding the rare-earth element, grains of the polyurethane paint can be refined, such that the polyurethane paint can be better coated on a copper flat wire; adding the halloysite nanotubes enables a polymer to form a network structure, such that the polyurethane paint has better mechanical strength; and adding silicon carbide and graphene further improves the mechanical strength of the polyurethane paint, also enhances the barrier properties of the polyurethane paint, and reduces the permeation of external substances, such as moisture and oxygen, to the polyurethane paint, thereby contributing to improving the oxidation resistance of the polyurethane paint.