245 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 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 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 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 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 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 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 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.

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.

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.

The invention belongs to the technical field of thin film materials, and particularly relates to a transparent ultraviolet-proof composite film as well as a preparation method and application thereof. The transparent ultraviolet-proof composite film provided by the invention is prepared from the following raw materials: acetylated lignin, a halloysite nano material, chitosan and polyvinyl alcohol, the acetylated lignin is loaded on the halloysite nano material. The specific transparent ultraviolet-proof composite film disclosed by the invention has high transparency on the basis of ensuring that the passing rate of ultraviolet light with the wavelength of 200-400nm is less than 5%, the passing rate of visible light with the wavelength of 400-780nm reaches more than 60%, and meanwhile, the transparent ultraviolet-proof composite film also has high mechanical property, is capable of blocking moisture and oxygen, is good in biological safety and is degradable.

The invention discloses grinding equipment and technology for separation and purification of nano mineral halloysite, and relates to the technical field of halloysite grinding, the grinding equipment comprises a base, a lower grinding disc is arranged above the base, an upper grinding disc is arranged above the lower grinding disc, the upper grinding disc is fixedly connected with a plurality of crushing edges, and the crushing edges are arranged on the base. The diameters of the edges of the upper millstone and the lower millstone are gradually reduced from top to bottom, and the diameters of the edges of the upper millstone and the lower millstone are gradually reduced; the distance between the lower millstone and the upper millstone is changed, so that a gap in the edge of the grinding cavity is changed, the effect of adjusting the granularity of the ground halloysite can be achieved, and material blocking is avoided on the basis that the distance between the upper millstone and the lower millstone is convenient to adjust; after the lower millstone descends below the upper millstone, the upper millstone and the lower millstone can be conveniently overhauled and maintained, and a gap between the upper millstone and the lower millstone can be conveniently cleaned.

To provide a flame-retardant polycarbonate resin composition which does not generate toxic fumes at the time of combustion, passes regulations for PFAS and the like, has environmentally friendly advanced flame retardancy, and has excellent mechanical properties. The flame-retardant polycarbonate resin composition is characterized by comprising, with respect to 100 mass parts of a polycarbonate (A), 0.1-1.0 mass parts of halloysite (B), and 0.01-5 mass parts of a non-phosphorus-based or non-halogen-based flame retardant (C).

The present invention belongs to the fields of catalysts and petrochemicals, and specifically relates to a catalyst, its preparation method, and its application. The catalyst comprises a composite support and an active metal Ni supported on the composite support. The composite support is composed of a modifier and a natural mineral compound, wherein the modifier comprises zirconium and a rare earth metal. The natural mineral is selected from one or more of diatomaceous earth, sepiolite, halloysite, attapulgite, vermiculite, and molybdenite. The rare earth metal is selected from one or more of yttrium, lanthanum, cerium, neodymium, samarium, europium, gadolinium, and ytterbium. The catalyst of the present invention has good structural stability and exhibits high activity and selectivity in the catalytic production of DMS. The catalyst of the present invention exhibits excellent performance in the hydrogenation of DMM to produce DMS, effectively improving DMS selectivity and reducing the production of GBL, BDO, and THF.

The invention discloses a composite degradation accelerant, a controllable degradation polyester composite material and a preparation method of the controllable degradation polyester composite material. According to the invention, the halloysite-loaded degradation accelerant is used for coating the degradation bacterium spores to form a core-shell structure, so that the composite degradation accelerant is obtained, the thermal stability of the degradation bacterium spores is improved, and the degradation bacterium spores can be subjected to thermal processing with biodegradable polyester; through the synergistic effect of the composite degradation accelerant and the degrading bacteria, the biodegradation rate of the biodegradable material is regulated and controlled; the composite degradation accelerant and biodegradable polyester are blended and compounded, and the degradation rate is regulated and controlled through the design of the load rate and the raw material ratio, so that the problem of poor controllability of the degradation rate of the existing biodegradable material is solved; the production process is simple, and the existing biodegradable polyester modification production line is adopted, so that large-scale industrial production can be realized.

The invention relates to the technical field of waterproof coatings, and discloses modified halloysite and a preparation method thereof, a composition for a non-curing waterproof coating, the non-curing waterproof coating and a preparation method and application of the non-curing waterproof coating. The method for preparing the modified halloysite comprises the following steps: (1) carrying out first mixing on sunflower seed meal and an ethanol solution to obtain extract liquor; the mass concentration of the ethanol solution is 40-60%; (2) carrying out second mixing on a raw material halloysite nanotube and the extract liquor to obtain the modified halloysite, in the step (1), the mass ratio of the sunflower seed meal to the ethanol solution is 1: (5-19); in the step (2), the use amount mass ratio of the raw material halloysite nanotube to the extract liquor is 1: (1.5-2.5). The non-curing waterproof coating prepared from the modified halloysite provided by the invention has good antibacterial and mildew-proof properties.

This invention relates to the field of composite current collector base film materials, and discloses a heat-resistant and aging-resistant composite current collector base film and its preparation process. It is prepared by melt extrusion and stretching of the following raw materials in parts by weight: 100 parts PET resin, 12-25 parts multi-component composite reinforcing filler, and 0.5-3 parts lubricant. The multi-component composite reinforcing filler is prepared through the following steps: S1, halloysite nanotubes are composited with aminated mesoporous alumina, modified, and then loaded with an antioxidant to obtain functionalized halloysite nanotube-alumina composite particles; S2, magnesium oxide is deposited on graphene oxide, and modified to obtain a modified graphene oxide-magnesium oxide composite; S3, after blending, polymer grafting is performed to obtain the multi-component composite reinforcing filler. This invention, through the multi-component composite reinforcing filler in PET resin, can comprehensively improve the heat resistance, aging resistance, and bonding strength between the base film and the metal layer of the PET resin-based composite current collector base film.

The present application relates to the technical field of building materials, and specifically discloses a water-resistant putty powder for interior walls and a preparation method thereof. A water-resistant putty powder for interior walls, the raw materials of which include: sulphoaluminate cement, nano-heavy calcium powder, silica fume, double MOF composite nanotubes, modified diatomaceous earth, polypropylene fiber, nano-titanium dioxide, defoaming agent, dispersant and mildew inhibitor. The double MOF composite nanotubes are obtained by loading copper trimesic acid in the inner cavity of halloysite nanotubes and loading dimethylimidazole cobalt on the outer wall; the modified diatomaceous earth is obtained by modifying diatomaceous earth with stearic acid. The water-resistant putty powder for interior walls of the present application uses double MOF composite nanotubes as the core functional material, and under the synergistic effect of multiple components, it effectively enhances the water resistance and air permeability of the putty layer.

The invention provides a wear-resistant anti-aging waterproof tarpaulin and a preparation method thereof, and belongs to the technical field of tarpaulin. The wear-resistant anti-aging waterproof tarpaulin comprises a base cloth layer and a PVC (polyvinyl chloride) coating coated on the base cloth layer, wherein the PVC coating is prepared from the following raw materials: 70 to 90 parts of PVC paste resin, 5 to 15 parts of a composite plasticizer, 10 to 30 parts of TiO2-HNTs powder, 3 to 5 parts of chlorinated paraffin, 8 to 12 parts of an additive and 80 to 100 parts of a solvent. The titanium dioxide and the halloysite nanotubes are compounded, the titanium dioxide is loaded on the halloysite nanotubes, agglomeration of the titanium dioxide is prevented, and the mechanical property and wear resistance of the tarpaulin can be effectively enhanced by adding the halloysite nanotubes.

The invention relates to the technical field of NBR composite materials, in particular to a low-temperature-resistant wear-resistant NBR composite material and a preparation method and application thereof. The invention provides a low-temperature-resistant wear-resistant NBR (nitrile-butadiene rubber) composite material, which is prepared from the following components in parts by mass: 100 parts of NBR raw rubber, 2 to 6 parts of zinc oxide, 0.5 to 2 parts of stearic acid, 30 to 80 parts of carbon black, 1 to 3 parts of 2-mercaptobenzimidazole, 2 to 12 parts of oleylamine grafted halloysite nanotubes, 0.5 to 2 parts of sulfur and 0.5 to 4 parts of N-cyclohexyl-2-benzothiazole sulfenamide. According to the low-temperature-resistant wear-resistant NBR composite material, the compatibility of the additive and the NBR raw rubber is good, and the blooming phenomenon is avoided.

The invention discloses a lightweight high-strength aluminum alloy profile for vehicles and a preparation process thereof, and belongs to the technical field of aluminum alloys, the lightweight high-strength aluminum alloy profile for vehicles comprises basic components and enhanced components, the basic components comprise, by weight, 0.6%-1.2% of Mg, 0.7%-0.8% of Si, 0.3%-0.5% of Mn, 0.03%-0.05% of Cr and 0.3%-0.4% of Fe; the reinforcing component comprises 0.7%-2.1% of pretreated halloysite and 1%-5% of rare earth doped ceramic particles; less than or equal to 0.1% of other inevitable impurity elements and the balance of aluminum; the pretreated halloysite is halloysite subjected to dehydration treatment. The alpha-Al2O3 particles and the transition metal boride are introduced by adding the pretreated halloysite and in-situ generation of the rare earth doped ceramic particles, the mechanical property of the aluminum alloy profile is improved, the heat dissipation performance of the material is effectively improved, and the overall performance of the aluminum alloy profile is improved.

The present disclosure relates to reducing migration of materials from thermal management and / or electromagnetic interference (EMI) mitigation materials (e.g., thermal interface materials (TIMs), EMI absorbers, thermally conductive EMI absorbers, conductive elastomers (ECEs), conductive composites, combinations thereof, etc.) and other polymer-inorganic composites for other purposes. In an exemplary embodiment, a method includes adding halloysite and / or hollow nano-tubular inorganic structures and / or tubular inorganic nanomaterials to the composite in an amount sufficient to reduce migration of the material from the composite. Also disclosed are exemplary embodiments of the composite comprising halloysite and / or hollow nanotube inorganic structures and / or tubular inorganic nanomaterials in an amount sufficient to reduce migration of the material from the composite.

The invention provides a waterproof coating prepared from red mud and a preparation method of the waterproof coating. Every 1000 parts by mass of the waterproof coating is prepared from 300-350 parts by mass of pure acrylic emulsion, 150-200 parts by mass of butyronitrile latex, 40-60 parts by mass of halloysite, 40-60 parts by mass of titanium dioxide, 100-150 parts by mass of ground red mud, 100-150 parts by mass of heavy calcium carbonate powder, 2-3 parts by mass of cellulose ether, 4-6 parts by mass of a dispersing agent, 1-3 parts by mass of a wetting agent, 3-5 parts by mass of a defoaming agent, 2-4 parts by mass of a preservative, 6-8 parts by mass of iron oxide red powder, 0.5-1.5 parts by mass of organic color paste and the balance of water. The waste red mud can be used for preparing the waterproof coating, the environment-friendly effect is achieved, the production cost is low, and the prepared waterproof coating is good in waterproof effect, strength, adhesive strength, crack resistance and weather resistance.