318 results about "Glass microsphere" patented technology

The invention discloses a quick response flexible temperature sensor with low thermal crosstalk and a preparation method thereof. The sensor comprises a contact layer, a sensing layer, an electrode layer and a substrate layer, wherein the contact layer comprises a heat conduction layer and a heat insulation network; the heat-conducting layer is made of a heat-conducting composite material and comprises polydimethylsiloxane and flake carbon powder; the heat insulation network and the substrate layer are made of a heat insulation composite material which comprises polydimethylsiloxane and hollow glass microspheres; the sensing layer comprises a plurality of sensing units arranged in an array, the sensing units are connected with the electrode layer and output resistance signals, the heat conduction layer and the substrate layer are arranged over and under the sensing units respectively, and the heat conduction and heat insulation synergistic structure can enhance the quick response of the sensing units to the temperature; a thermal insulation network is embedded in the contact layer to block thermal crosstalk between adjacent sensing units. The temperature sensor has the advantages of quick response, low thermal crosstalk and high reliability in a wide range, and large-scale production and preparation can be realized.

The invention discloses a water-based single-component super-amphiphobic refrigeration coating, a coating and a preparation method of the coating, and relates to the technical field of coatings. 20-35 parts of a second filler; 5-10 parts of a third filler; 20-35 parts of a film-forming substance, 1-9 parts of an auxiliary agent and 3-50 parts of water; the first filler comprises fluorine-containing silane modified fumed silica; the second filler comprises at least one of long-chain silane modified precipitated barium sulfate, long-chain silane modified calcium carbonate and long-chain silane modified hollow glass beads; the third filler comprises an infrared emission filler treated by an organic silicon modifier. By modifying the filler, the purposes of stable dispersion and functional synergy of low-surface-energy substances and high-proportion inorganic nano filler in a water-based system are achieved.

The invention discloses a dual-wavelength microsphere laser based on tri-doped rare earth ions and a preparation method thereof, the dual-wavelength microsphere laser based on tri-doped rare earth ions comprises a silica fiber, the middle part of the silica fiber is provided with a conical region; the pump light source is arranged at one end of the silica fiber; the erbium, holmium and ytterbium tri-doped tellurate glass microspheres are arranged in the conical region; pump light emitted by the pump light source is guided to the conical region through the single-mode optical fiber and is optically coupled with the erbium-holmium-ytterbium tri-doped tellurate glass microsphere; in the erbium-holmium-ytterbium triple-doped tellurate glass microspheres, infrared-transmitting tellurate glass is used as a matrix, and the doping amount of an erbium element is 0.11%, the doping amount of a holmium element is 0.22%, and the doping amount of an ytterbium element is 0.80% in percentage by mass. According to the dual-wavelength microsphere laser based on the three-doped rare earth ions, efficient and stable dual-wavelength laser output is achieved.

The invention discloses a high-wear-resistance antiskid road marking coating and a preparation method thereof, and belongs to the technical field of road marking coatings. The coating comprises the following components in parts by weight: 15-25 parts of petroleum resin, 2-5 parts of a plasticizer, 30-40 parts of a composite wear-resistant aggregate, 15-25 parts of a composite antiskid aggregate, 5-10 parts of titanium dioxide, 0.5-2 parts of a silane coupling agent, 0.5-1.5 parts of polyethylene wax, 5-10 parts of glass beads, 0.1-0.3 part of an antioxidant 1010 and 10-20 parts of a filler. Through the synergistic effect of two types of specific aggregates, a hard-supporting and elastic-buffering wear-resistant matrix and a lasting multi-stage anti-skid surface are constructed in the coating, and the technical problems that a traditional marking coating is poor in wear resistance, insufficient in anti-skid performance and short in reflective life are solved; the obtained coating has the characteristics of ultrahigh wear resistance, lasting high skid resistance, strong adhesive force and slow reflection performance attenuation.

The invention discloses a flue gas waste heat recovery device and method for a glass bead smelting furnace, and relates to the technical field of flue gas heat recovery. The glass bead smelting furnace flue gas waste heat recovery device comprises a rack, a filtering mechanism and a heat exchange mechanism, the filtering mechanism and the heat exchange mechanism are fixedly connected to the top of the rack, the filtering mechanism filters glass bead smelting furnace flue gas and then discharges the glass bead smelting furnace flue gas into the heat exchange mechanism for heat exchange and energy storage, and the filtering mechanism and the heat exchange mechanism both have a self-cleaning function; smoke can be filtered and heat can be recovered in sequence, an airflow channel forms a loop, after heat is released in the heat exchange mechanism, the heat can be discharged back to the filtering mechanism, a filtering disc in the filtering mechanism is separated into a left part and a right part, when initial smoke is filtered in the left half part of the filtering disc, impurities are attached to the bottom of the filtering disc, and the smoke is filtered in the left half part of the filtering disc. And the backflow flue gas can be used for blowing the filter disc from top to bottom, so that impurities attached to the bottom of the filter disc can fall into water on the lower layer, and the two sides can be cleaned in sequence.

The invention provides a bio-based low-temperature curing powder coating and a preparation method thereof, and belongs to the technical field of powder coatings, and the bio-based low-temperature curing powder coating specifically comprises the following components in parts by weight: 65-75 parts of bio-based resin, 5-6 parts of triglycidyl isocyanurate, 0.05-0.15 part of tetrabutylammonium bromide, 8-12 parts of air glass beads, 4-6 parts of mica and 0.4-0.6 part of ethylene bis stearamide. 0.7 to 1.3 parts of flatting agent, 0.2 to 0.5 part of benzoin, 0.3 to 0.7 part of amide wax and 6 to 8 parts of pigment. The curing temperature of the bio-based low-temperature curing powder coating is 100-120 DEG C, and the bio-based low-temperature curing powder coating has the advantage of low curing temperature, can be suitable for surface coating of plastic devices, has the advantages of salt mist resistance, impact resistance and the like, and can effectively solve the problems of existing powder coatings.

The present application relates to thermal insulation coating technical field, specifically to a kind of low VOCs ultraviolet resistant thermal insulation coating composition and its performance testing device, consisting of the following mass parts components: water-based acrylic resin 30-45 parts, nitrogen-doped graphene 1-3 parts, nano composite powder 2-5 parts, low water absorption and expansion glass microsphere 8-12 parts, silane coupling agent modified sepiolite 5-10 parts, silane coupling agent KH560 0.5-1.5 parts, ultraviolet absorber UV-9 0.3-0.8 parts, hydroxyethyl cellulose thickening agent 0.2-0.5 parts;Composition meets the following conditions: (1) VOCs content≤50g / L;(2) ultraviolet absorption rate≥95%;The present application realizes the purpose that VOCs content is far lower than traditional solvent type coating through the synergistic effect of water-based acrylic resin system and low water absorption and expansion glass microsphere, while nitrogen-doped graphene and nano ITO-SiO2 Composite powder form ultraviolet-infrared dual-effect shielding layer, ultraviolet absorption rate, infrared reflectivity greatly improve, solve the problem that traditional anti-UV coating function is single, VOCs is overproof.

The invention relates to the technical field of functional coatings, and discloses a preparation method of a composite aerogel thermal insulation coating, which comprises the following steps: controlling the solubility parameter difference between film-forming resin and a first solvent, and curling and shrinking a resin molecular chain to form a swelling gel group in a non-dissolved state; performing dry powder grading on the hydrophobic silicon dioxide aerogel powder and the high-strength hollow glass beads; under the conditions of low temperature and high viscosity, shearing and kneading the swelled gel group, a silane coupling agent and the mixed powder, and carrying mechanical stress and completing interface chemical anchoring by using glass beads; and finally, dropwise adding a good solvent in a gradient manner to induce controlled unwrapping of the resin. According to the invention, the size exclusion effect is utilized to prevent the resin from immersing into aerogel nanopores, and the aerogel skeleton is prevented from being broken through the mechanical support of the microbeads, so that the problems of pore filling and skeleton collapse in the coating preparation process are solved, and the obtained coating has excellent heat insulation performance and mechanical strength.

The invention discloses a surface coating method for realizing thrust amplification of a sail, which is characterized in that a sail blade which takes a glass fiber composite material as a basic material comprises a step of anti-drag coating of a convex surface part of the sail blade, a step of anti-drag coating of a concave surface of the sail blade, a step of special coating of a sail blade end plate and a step of special coating of a sail blade guide device. A low-friction and high-wear-resistance coating which takes modified PTFE resin as a base material and contains nano aluminum oxide and graphite micro powder is adopted for the convex surface; and the concave surface adopts a vortex breaking-strong adhesion type coating which takes fluorocarbon resin (PVDF) as a base material and contains nano silicon dioxide and hollow glass beads. According to the invention, the thrust efficiency is improved by 60-80%; the thrust stability under the wide wind speed is improved by more than 60%, the service life of the sail blades can be prolonged, the operation and maintenance cost is reduced, an existing sail can be directly transformed, and the sail has the advantages of being low in cost and high in efficiency and has economic and environment-friendly values.

The invention discloses a low-dielectric insulation fixing adhesive and a preparation method thereof, and belongs to the technical field of fixing adhesives. The raw materials comprise, by weight, 25-40 parts of an epoxy resin matrix, 5-10 parts of a modified silane coupling agent, 15-30 parts of a low dielectric filler, 8-15 parts of a curing agent, 3-8 parts of a toughening agent, 2-5 parts of a diluent, and 0.5-2 parts of an antioxidant; the low dielectric filler is a composite filler of hollow glass beads and boron nitride, the mass ratio of the hollow glass beads to the boron nitride is (2-3): 1, and the modified silane coupling agent is a gamma-aminopropyltriethoxysilane grafted maleic anhydride modified product; according to the invention, the dielectric constant and the dielectric loss of the adhesive can be reduced, and the insulating property, the bonding strength and the compatibility with a base material can be improved at the same time.

This invention belongs to the field of glass microsphere preparation technology, and provides a release agent for fire polishing of white glass microspheres used in the vitrification of radioactive nuclear waste, and its preparation method. The release agent comprises the following components by mass fraction: 10-70% alumina powder, 20-90% quartz sand, 1-3% cerium oxide powder, and 1-6% white flour. By introducing white flour, the release agent of this invention can both protect the color of the white beads themselves and prevent the formation of twins or triplets during the fire polishing process. It also prevents the introduction of major chemical elements into the surface of the glass beads during the release process, thus increasing the compositional stability of the glass beads.

This application discloses a curing agent for fluidized solidified soil and its preparation method. The curing agent comprises the following raw materials by weight: 30-45 parts of sulfoaluminate cement, 15-30 parts of gypsum, 10-15 parts of steel slag, 15-25 parts of mineral powder, 3-4.5 parts of carboxymethyl cellulose, 10-15 parts of attapulgite, 5-10 parts of sodium sulfate, 5-10 parts of silane coupling agent modified glass microspheres, and 60-80 parts of water. The curing agent for fluidized solidified soil provided in this application can improve the compressive strength and stability of the solidified soil.

The invention discloses a visual efficient chloride ion removal adsorbing material and a preparation method and application thereof.The adsorbing material is prepared by the steps that hollow glass microspheres serve as a carrier, and hollow glass porous particles are synthesized from a mixture of hollow glass microsphere powder and a pore forming agent through a sol-gel method; the preparation method comprises the following steps: modifying the surface of a porous adsorption material through a low-temperature plasma bombardment technology to enhance the adsorption performance on chloride ions, and loading magnetic iron oxide nanoparticles on the porous adsorption material to prepare the chloride ion adsorption material; the adsorption material has the characteristic of environmental friendliness, not only can efficiently adsorb chloride ions in a water body, but also can realize the visualization of the adsorption process through the density difference before and after adsorption, has the characteristics of repeated use and easiness in regeneration, and has relatively high market application prospect and economic value.

The invention discloses a temperature-resistant heat-insulation sealing metal-rubber composite material which comprises a metal phase, a rubber phase and a binder, the preparation method of the temperature-resistant heat-insulation sealing metal rubber composite material comprises the following steps: step 1, sintering and molding metal fibers to obtain a three-dimensional porous metal framework; 2, fluororubber and silicone rubber are added into an internal mixer to be blended, then hollow glass beads and carbon black are sequentially added, the mixture is mixed to be uniform, and rubber mixed rubber is prepared; 3, the surface of the metal framework is coated with a binding agent, the binding agent is covered with the rubber compound, and the whole material is placed in a vulcanizing machine to be vulcanized; and 4, integrally transferring the vulcanized material into a drying oven for secondary vulcanization, and cooling to obtain a composite material finished product. The composite material is applied to the field of space flight and aviation. The invention aims to solve the problems of narrow temperature resistance range, non-ideal heat insulation effect and obvious reduction of high-temperature mechanical properties of the existing material, so as to meet the use requirements of aerospace equipment in a complex thermal coupling environment.

A method of making an oven cavity of a cooking appliance, and a cooking appliance made therewith, are provided. The method includes forming a composite sheet via sheet molding compound. The composite sheet includes glass fiber impregnated with silicone polymer. An intermediate assembly is formed by disposing a layer comprising an insulative material onto a first layer of the composite sheet. The intermediate assembly is inserted into a mold. A compression load is applied to the intermediate assembly in the mold to obtain a molded piece. One or more of the molded piece forms a composite body that defines the oven cavity of the cooking appliance. The silicone polymer may include one or more of poly dimethylsiloxane, poly methylphenyl silanol, poly diphenyl silanol, and poly vinyl functional backbone silicones having methyl hydrosilane crosslinkers. The insulative material may include ceramic foam, hollow glass microspeheres, or recycled glass powder.

The invention belongs to the technical field of polymer composite materials, and particularly relates to a latent curing epoxy resin based sound absorption and insulation composite material and application thereof. The composite material is prepared from bisphenol A type epoxy resin, a latent curing agent, a latent accelerant, a triethylene tetramine functionalized three-dimensional microporous metal organic framework material containing europium-cobalt bimetallic clusters, a lauryl sodium sulfate intercalated zinc-aluminum layered bimetal hydroxide halloysite nanotube hybrid body, hollow glass beads, fumed silica, a coupling agent, a coupling agent and a coupling agent. A silane coupling agent and acetone. The preparation method comprises the following steps: dissolving the epoxy resin in acetone, adding the silane coupling agent and water, stirring, heating, adding the functionalized metal organic framework material and the hybrid, carrying out vacuum concentration and ultrasonic dispersion, adding the hollow glass beads and the fumed silica, finally adding the curing agent and the accelerant, and carrying out vacuum defoaming and segmented heating curing molding. The material has excellent sound absorption and sound insulation performance.

This invention relates to the field of power cable technology and discloses a wear-resistant modified PE sheathed power cable with a braided reinforcement layer. From the inside out, the invention comprises a conductor, an insulation layer, a filler layer, a metal shielding layer, an inner sheath layer, a buffer layer, an armor layer, a double-gradient braided layer, and an outer sheath layer. The buffer layer is filled with nano-magnesium hydroxide particles and hollow glass microspheres to enhance buffering energy absorption and flame retardant performance, resisting external impacts and fire risks. The double-gradient braided layer uses a blended fiber design to enhance tensile strength and dynamic friction reduction, adapting to dragging and stretching conditions. The outer sheath layer, with its helical interlocking structure and graphene molybdenum disulfide modified ridge surface, enhances wear resistance and load-bearing capacity, resisting wear in complex environments. The synergistic effect of each functional layer comprehensively improves the overall performance of the cable.

The application provides a display device, a halogen-free flame-retardant polypropylene composite material and a preparation method thereof, which comprises 60-78 parts of polypropylene, 10-15 parts of modified glass fiber, 10-20 parts of modified glass microsphere and 2-5 parts of antioxidant by weight; wherein the modified glass fiber comprises 80-90 parts of glass fiber and 10-20 parts of first modifier, the first modifier comprises long-chain amide, and the first modifier is grafted on the outer periphery of the glass fiber; the modified glass microsphere comprises 80-90 parts of glass microsphere and 10-20 parts of second modifier, the second modifier is grafted on the outer periphery of the glass microsphere, and the second modifier comprises at least one of DOPO and a derivative of DOPO.

This invention discloses a high-wear-resistant polyetherimide composite material, its preparation method, and its applications. The high-wear-resistant polyetherimide composite material comprises the following components by weight: 60-90 parts polyetherimide, 10-40 parts polyketimide, 1-5 parts antioxidant, 10-20 parts hollow glass microspheres, and 5-10 parts toughening agent. The high-wear-resistant polyetherimide composite material is prepared by compounding the two polymers and simultaneously adding wear-resistant additives. The composite material prepared by this invention achieves a Rockwell hardness of over 105 and possesses excellent mechanical properties, making it suitable for application in high-temperature and wear-resistant aerospace fields.

The invention provides a low-water-absorption glass bead modified PBT (polybutylene terephthalate) material and a preparation method thereof. The low-water-absorption glass bead modified PBT material comprises the following components in parts by weight: 70-100 parts of PBT resin; 0 to 30 parts of solid glass beads; 0-5 parts of a toughening agent; 0-2 parts of an antioxidant; 0-2 parts of a lubricant; 0-2 parts of black color master batch; 0-2 parts of a coupling agent; 0-5 parts of polytetrafluoroethylene wax; wherein the average particle size of the solid glass beads is 1-50 [mu] m; the average particle size of the polytetrafluoroethylene wax is 3-15 [mu] m, and the weight-average molecular weight of the polytetrafluoroethylene wax is 10000-30000 g / mol; the weight ratio of the solid glass beads to the polytetrafluoroethylene wax is (5-10): 1. According to the invention, the polytetrafluoroethylene wax is added into the solid glass bead modified PBT material, so that the shrinkage difference between the material flow direction and the vertical flow direction is effectively reduced, the water absorption rate of the material is remarkably reduced, the preparation process is simple, and the production process is easy to control.

The invention belongs to the technical field of ultrasonic transducers, and particularly relates to a multi-layer high-performance ultrasonic transducer matching layer structure and a preparation method thereof. The matching layer structure at least comprises five slurry layers with different acoustic impedances, and every two adjacent slurry layers are firmly combined through interface crosslinking; the formula of each slurry layer consists of the following components in parts by weight: 100 parts of a polymer matrix; the polymer matrix is one of polyurethane, epoxy resin and polyimide; 40 to 600 parts of an acoustic filler; the acoustic filler is one or a combination of more of metal powder, hollow glass microspheres and polymer hollow microspheres; 5 to 30 parts of a cross-linking agent; the cross-linking agent is a silane cross-linking agent. Continuous gradual change of acoustic impedance is achieved, the size is smaller, and the performance is more uniform and controllable.

This invention provides a glass-microsphere hybrid heat-insulating polyester chip, its preparation method, and its application. The glass-microsphere hybrid heat-insulating polyester chip is obtained by melt extrusion granulation after blending polyester chips with hollow glass microspheres. The surface coating layer of the hollow glass microspheres comprises the following raw materials in weight percentages: 30-50% fluorinated resin prepolymer, 2-8% crosslinking agent, 0.5-2% initiator, and the balance solvent. This invention introduces fluorinated resin into the coating layer on the surface of the hollow glass microspheres. Due to the excellent compatibility between the fluorosilicone or fluorocarbon segments in the fluorinated resin and the polyester matrix, and the introduction of the crosslinking agent to form a three-dimensional network structure, the interfacial bonding force between the coating layer and the polyester matrix is ​​enhanced, preventing microsphere detachment during spinning, and imparting hydrophobicity to the hollow glass microspheres, resulting in self-cleaning properties after spinning.

This invention discloses a self-cleaning radiative cooling coating based on biomass carbon quantum dots, its preparation method, and its application. The coating comprises a polymer film-forming resin, carbon quantum dots, and hollow glass microspheres; wherein the mass ratio of the polymer film-forming resin to the filler is 1:(0.1-0.5), and the mass ratio of the hollow glass microspheres to the carbon quantum dots is 1:(0.05-0.2). This invention synergistically enhances solar reflectivity through the photoluminescence properties of carbon quantum dots and the scattering properties of hollow glass microspheres, while simultaneously utilizing the synergistic effect of fluorinated resin and modified hollow glass microspheres to endow the coating with superhydrophobic self-cleaning function. A single layer of this coating can achieve a solar reflectivity >92%, mid-infrared emissivity >94%, and contact angle >150°, possessing both efficient daytime radiative cooling and long-lasting self-cleaning performance. It is particularly suitable for passive heat dissipation of outdoor equipment such as new energy vehicle charging piles, and features simple process, environmental friendliness, and excellent performance.

The present application relates to the technical field of buoyancy material, and particularly relates to a low-density hydrophobic buoyancy material and a preparation method thereof. The low-density hydrophobic buoyancy material comprises the following components in parts by weight: 50-60 parts of epoxy resin, 35-45 parts of polyurethane modified graphene oxide-hollow glass microsphere composite material, 15-25 parts of polyaniline, 8-12 parts of short carbon fiber, 4-8 parts of diluent and 1-3 parts of curing agent. The low-density hydrophobic buoyancy material has the characteristics of low density and water absorption, excellent bulk modulus and compression strength, and good weather resistance. The preparation method of the low-density hydrophobic buoyancy material is simple in process and easy to control in operation, is conducive to industrialized mass production, and the prepared low-density hydrophobic buoyancy material is stable in quality and superior in comprehensive performance.

The invention discloses a cold-proof and heat-insulation polyurethane composite material applied to door and window assemblies, and belongs to the technical field of composite materials. The composite material is prepared from polyurethane resin, modified hollow glass beads, aerogel powder, basalt fibers, a composite flame retardant, a composite anti-aging agent and other raw materials according to specific parts. The modified hollow glass beads are subjected to composite modification through a silane coupling agent KH-550 and polyethylene glycol distearate, the composite flame retardant is prepared by compounding magnesium hydroxide, montmorillonite and pentaerythritol phosphate, and the composite anti-aging agent is prepared by combining an ultraviolet light absorber, an antioxidant and a hindered amine light stabilizer. By optimizing the formula and the preparation process, the material has excellent cold-proof and heat-insulating properties, mechanical properties, flame retardance and aging resistance, is low in heat conductivity coefficient, high in strength, environment-friendly, safe and long in service life, meets the use requirements of door and window components in the building field, is simple in preparation process and is suitable for industrial production.

The application discloses a hollow glass microsphere floatation device and method, and relates to the technical field of hollow glass microsphere production. Through the design of the pressurizing assembly, the glass microspheres in the pressurizing cylinder can be subjected to pressure by the pressurizing plate before entering the floatation operation, so that the hollow microspheres with surface cracks can penetrate into the floatation liquid, thereby facilitating the increase of the weight of the hollow microspheres with surface cracks and the sinking of the hollow microspheres with surface cracks to the bottom during the subsequent floatation operation, and effectively distinguishing the hollow microspheres with surface cracks from qualified hollow microspheres, so as to improve the floatation qualification rate. Through the design of the multi-stage floatation assembly, the cylinder is divided into a first collecting chamber, a second collecting chamber and a third collecting chamber by a first baffle assembly and a second baffle assembly, and the different particle sizes of the filter holes are matched, so that the classification and screening according to the particle size are realized, the qualified hollow microspheres, the hollow microspheres with surface cracks and the fragments can be simultaneously separated, and are respectively stored in the first collecting chamber, the second collecting chamber and the third collecting chamber, so that multi-stage fine separation is realized, and the hollow glass microspheres can be used according to the actual environmental requirements.

This invention relates to the field of thermally insulated aluminum materials, and discloses a thermally insulated aluminum material and its preparation method. The aluminum material consists of a 6061 aluminum substrate and a composite thermally insulated coating layer. The coating layer uses 40-45 parts by weight of bisphenol A type epoxy resin as the matrix, and is formulated with modified silica, coupling agent-modified adamantane, polyethyleneimine-modified hollow glass microspheres, and other modified fillers and additives. The aluminum material is prepared by roughening the substrate through grinding, coating it with the coating, and curing at room temperature for 45-55 minutes. This aluminum material exhibits significantly reduced thermal conductivity, coating adhesion reaching grade 0, excellent aging resistance and water resistance, and a simple preparation process with mild reaction conditions and readily available raw materials. The components work synergistically, making it suitable for industrial mass production and applicable to various thermally insulated aluminum material applications such as construction, automotive, and chemical industries.

This invention discloses a lightweight sound-absorbing building material, its preparation method, and its application in ceiling components, relating to the field of lightweight building materials technology. The lightweight sound-absorbing building material of this invention consists of a porous plate and a glaze layer on the surface of the porous plate. The glaze layer is formed by spraying glaze onto the surface of the porous plate; the porous plate is formed by sintering a plate-forming composition; the plate-forming composition includes the following raw materials: waste foamed ceramic powder, diatomaceous earth, hollow glass microspheres, cellulose nanocrystals, bilayer fibers, a foaming agent, and an ethanol solution of polyethyleneimine. The core-shell structure bilayer fibers introduced in this invention, with a mesoporous barium titanate-silica composite phase as the core and an MXene-graphene composite phase as the shell, effectively improve the material's sound absorption and noise reduction capabilities; the introduction of hollow glass microspheres and cellulose nanocrystals further enhances the material's lightweight properties, flexural strength, and sound absorption and noise reduction capabilities. Therefore, this invention has broader application prospects.

The invention belongs to the technical field of polymer composite materials, and relates to a cyanate ester high-wave-transparent composite material as well as a preparation method and application thereof. After a mixture of hollow glass microspheres and silicon dioxide is coated by polyphenyl ether with hydroxyl by adopting supercritical carbon dioxide fluid, polyphenyl ether PPO with hydroxyl is foamed on the surface of an inorganic material to form a porous structure. And then compounding the pretreated filler with a cyanate ester resin system, and carrying out curing molding to obtain the composite material. The porous structure can effectively toughen a matrix, hydroxyl on the surface of the porous structure can react with cyanate ester groups, the interface bonding force and reactive compatibility of inorganic filler and the resin matrix are remarkably improved, and finally the organic-inorganic hybrid material with interpenetrating polymer chains and the porous structure is formed. According to the prepared composite material, the mechanical property, especially the toughness, is remarkably improved while the excellent wave-transparent performance is kept, and the composite material is suitable for wave-transparent parts such as high-performance radomes and antenna windows.

The utility model discloses a hollow glass bead forming device which comprises a base, the upper end of the base is fixedly connected with processing equipment and a cooling forming box, the upper end of the cooling forming box is designed to be open, and a stirring mechanism used for stirring cooling water is arranged in the cooling forming box. And two symmetrically-arranged limiting rods are fixedly connected between the inner walls of the two ends of the cooling forming box jointly, a scraping-out mechanism used for scraping out materials is arranged on the two limiting rods jointly, the scraping-out mechanism comprises a moving plate connected to the two limiting rods in a sliding and sleeving mode, and a groove is formed in the lower end of the moving plate. The device is reasonable in structure, by arranging the scraping mechanism, if formed materials are in a hollow state meeting the requirement, the formed materials can float on the water surface, if the formed materials are in a solid state, the formed materials can sink, the materials can be pushed to the trapezoidal plate through reciprocating movement of the scraping plate and are discharged through the discharging port, screening of the materials is achieved, and the forming quality is greatly improved.