Patents
Literature
Patsnap Eureka AI that helps you search prior art, draft patents, and assess FTO risks, powered by patent and scientific literature data.

146 results about "Core shell" patented technology

Posted by on October 11, 2017 The “shell and core” building concept involves the building owner or landlord planning and constructing the core, or inside, of a building surrounded by the exterior shell. The term fit-out refers to everything you need to outfit the interior of a building, such as furnishings, decorations, and other interiors.

Lightweight water-resistant phosphogypsum-based cement concrete mortar and preparation process thereof

The invention relates to the technical field of building materials, in particular to light water-resistant phosphogypsum-based cement concrete mortar and a preparation process thereof. The phosphogypsum-based cement concrete mortar comprises the following components: activated phosphogypsum, sulphoaluminate cement, magnesium phosphate cement, modified zeolite powder, lightweight aggregate, modified nano silicon dioxide, a core-shell toughening agent, a polycarboxylate superplasticizer and water, and the preparation method comprises the following steps: respectively preparing the activated phosphogypsum, the modified zeolite powder, the modified nano silicon dioxide and the core-shell toughening agent; the water resistance of the ardealite is improved through activating treatment, the interface bonding force and the structural compactness are enhanced through multi-component synergism by means of selective adsorption of the modified zeolite powder, the mechanical property of the lightweight aggregate is optimized, the toughness is improved through the core-shell toughening agent, and lightweight, high water resistance, stable performance and durability improvement of the mortar are achieved; the requirements of complex building scenes are met, and environment-friendly and practical values are achieved.
Owner:GUIZHOU NORMAL UNIVERSITY

Aerosol generating product

The invention discloses an aerosol-generating article comprising an aerosol-generating substrate segment, the aerosol-generating substrate segment comprising a plurality of aerosol-generating capsules. According to the aerosol generating product provided by the invention, the aerosol generating capsule with a core-shell structure is used as a fuming material, so that the heating release temperature can be further reduced, and the harm of smoke is reduced.
Owner:SHENZHEN HUABAO COLLABORATIVE INNOVATION TECH RES INST CO LTD

Composite regenerated magnesia carbon brick and preparation method thereof

InactiveCN121800547ABrickGraphite
The invention relates to the technical field of refractory materials, and provides a composite regenerated magnesia carbon brick and a preparation method thereof. The composite regenerated magnesia carbon brick is prepared from the following raw material components in parts by mass: 55 to 65 parts of waste magnesia carbon brick, 40 to 50 parts of fused magnesia, 7 to 10 parts of composite graphite, 3 to 5 parts of antioxidant and 4 to 7 parts of phenolic resin, the composite graphite is of a core-shell structure, and a core in the core-shell structure is magnesium oxide coated graphite; and the shell in the core-shell structure is 1, 3, 5-trimethoxybenzene. According to the technical scheme, the problem that the mechanical property of the composite regenerated magnesia carbon brick is poorer due to poorer wettability of phenolic resin on graphite in related technologies is solved.
Owner:TANGSHAN GUOLIANG SPEICAL REFRACTORY MATERIAL

Preparation method of foaming thermal insulation ceramic decorative plate

The invention discloses a preparation method of a foamed thermal-insulation ceramic decorative plate in the technical field of building decorative materials. The method comprises the following steps: carrying out ball milling, spray drying, granulating and ageing on raw materials such as ceramic waste and kaolin; mixing and dispersing the aerogel-hydrogel gradient core-shell structure composite modified material and ceramic particles, and sieving to obtain composite powder; compounding sodium bicarbonate and azodicarbonamide with a foaming agent, mixing the foaming agent with the composite powder, and adding a surfactant and a dispersing agent to adjust the viscosity so as to prepare expandable ceramic slurry; the slurry is injected into a mold and coated with low-temperature glaze, and stepped heating sintering is conducted through a tunnel kiln and comprises the steps of preheating glue discharging, primary foaming, secondary sintering, gradient cooling and the like. The thermal insulation performance, the mechanical strength, the weather resistance and the decoration performance are synergistically improved, and the product is low in heat conductivity coefficient, high in compressive strength, excellent in ultraviolet aging resistance, firm in decoration layer combination and suitable for building outer walls and other scenes.
Owner:HUNAN FUOU TECHNOLOGY CO LTD

Impermeable and anticorrosive concrete mortar admixture for seaport wharf and preparation method of impervious and anticorrosive concrete mortar admixture

The invention discloses an anti-seepage and anti-corrosion concrete mortar admixture for seaport wharfs and a preparation method thereof. The invention relates to a high-performance cement-based composite material which comprises the following components in percentage by weight: 30-50% of Portland cement, 25-35% of surface-etched quartz sand, 5-20% of silica fume, 15-30% of a core-shell structure active substance and 5-8% of an ion response type calcium compensating agent. The core-shell structure active substance takes a micro-nano organic acid salt crystal as a core, and the surface of the core-shell structure active substance is coated with a polyelectrolyte response layer; the calcium compensating agent is formed by compounding calcium oxide and a zirconium phosphate carrier. Accurate crack self-repairing is achieved through a chloride ion triggered shell dissolution and calcium ion gradient release two-stage response mechanism, the anti-permeability grade reaches P18, the chloride ion diffusion coefficient is reduced by 50% or above, and the water-free self-repairing capacity for microcracks (smaller than or equal to 0.6 mm) is achieved.
Owner:HEFEI BAIHUI ENVIRONMENTAL PROTECTION TECHNOLOGY CO LTD

High-light-transmittance weather-proof impact-resistant striped sound insulation board

PendingCN121552772ASynthetic resin layered productsCoatingsHigh energyStyrene maleic anhydride
The invention relates to the technical field of multi-layer material preparation, in particular to a high-light-transmittance weather-proof impact-resistant striped sound insulation board. The problem that transparency, weather resistance and sound insulation effect of a traditional stripe material are difficult to consider at the same time is solved. The light scattering and absorption center is reduced and high transparency and low haze are realized through reactive extrusion of the recycled material, combination of high-temperature adsorption activated carbon, multi-stage high vacuum and deep purification of a reactive decolorizing agent, and matching of transparent dispersion diffusion master batch and a compatilizer. The surface layer adopts the core-shell weather-resistant master batch and the secondary high-energy UV fluorosilicone curing coating for double shielding of ultraviolet and inhibition of photodegradation and yellowing; styrene-maleic anhydride damping resin is introduced into the middle layer, and uniform inclined micropores and asymmetric stripes formed by supercritical CO2 are combined, so that the medium and low frequency sound insulation index is improved; the bottom layer is repaired and guaranteed to be durable in impact resistance by virtue of a core-shell toughening agent and molecular chain extension; the defects of traditional products are overcome, and the service life requirement of sound barriers for expressways and rail transit is met.
Owner:JASLON NEW MATERIALS TECH (JIANSU) CO LTD

Multifunctional composite energy-saving material for building envelope and preparation method of multifunctional composite energy-saving material

The invention relates to the technical field of building energy-saving materials, in particular to a building envelope structure multifunctional composite energy-saving material and a preparation method thereof.The building envelope structure multifunctional composite energy-saving material is prepared from, by weight, 90-110 parts of lightweight aggregate, 15-30 parts of cement-based binder and 15-30 parts of microcapsule phase change unit; the particle size of the microcapsule phase change unit is 50-200 [mu] m, the microcapsule phase change unit is composed of a core-shell structure, the core of the microcapsule phase change unit is an organic phase change substance with the phase change temperature of 20-30 DEG C, and the shell of the microcapsule phase change unit is a cross-linked polymer layer doped with modified nano ferroferric oxide. The system effectively stabilizes indoor temperature fluctuation, reduces air conditioner energy consumption, can be widely applied to outer walls, inner walls, roofs, floors and other parts of buildings, and provides an efficient and energy-saving solution for modern buildings.
Owner:QINGHAI COLLEGE OF ARCHITECTURAL TECH

High-temperature solid heat storage material based on industrial solid waste, preparation method of high-temperature solid heat storage material and heat storage pile

The invention provides a high-temperature solid heat storage material based on industrial solid waste, a preparation method of the high-temperature solid heat storage material and a heat storage pile, and belongs to the technical field of energy and new energy storage and energy saving materials. The high-temperature solid heat storage material is prepared by introducing three functional additives with a synergistic effect: a composite alkali-boron activator is used for bonding and forming solid waste raw materials through a geological polymerization reaction at a low temperature, and is converted into a fluxing agent at a high temperature to promote low-temperature densification of the material; a core-shell structure thermal conductivity reinforcing agent with an anti-oxidation glass shell layer constructs an efficient three-dimensional heat conduction network in the material, and the heat conduction rate is increased; meanwhile, the Li-Al-Si vitrified precursor powder is induced to separate out low-thermal-expansion microcrystals in a third temperature stage, and the material is endowed with thermal shock resistance stability through a microstress compensation mechanism; the three additives have a synergistic effect to improve the heat storage performance and mechanical stability of the material.
Owner:INNER MONGOLIA DONGRUN GREEN ENERGY TECH CO LTD

Building exterior wall coating and preparation method thereof

The invention relates to a building exterior wall coating and a preparation method thereof, and belongs to the technical field of building coatings. The coating is composed of a composite inorganic-organic hybrid film forming base material, a nano composite flame-retardant filler, a bio-based thickener, a photoresponsive hydrophobic aid, a low-foam wetting dispersant and deionized water. Wherein the composite base material forms an interpenetrating network structure through compounding of sodium potassium silicate and phosphate modified polyacrylate emulsion, and has inorganic phase hardness and organic phase flexibility; the nano flame-retardant filler adopts an Mg-Al layered dihydroxy oxide and cerium dioxide core-shell structure, and zinc borate is loaded to realize multi-stage flame retardance. The preparation method comprises ultrasonic-assisted emulsion polymerization, electrostatic self-assembly filler compounding and gradient curing processes, and during construction, a layered spraying and ultraviolet activation combined technology is adopted. The super-hydrophobic self-cleaning flame-retardant coating has excellent flame retardance, super-hydrophobic self-cleaning performance and long-acting weather resistance.
Owner:TIELING BEIXUE COATING CO LTD

Low-temperature-resistant waterproof coating for outer wall of house building and preparation process of low-temperature-resistant waterproof coating

ActiveCN121108835ACoatingsPolyolEmulsion
The invention relates to the technical field of coatings, and particularly discloses a low-temperature-resistant waterproof coating for an outer wall of a house building and a preparation process of the low-temperature-resistant waterproof coating. The water-based paint is prepared from the following raw materials in parts by mass: 200 to 250 parts of modified silicone acrylic emulsion, 75 to 125 parts of polyurethane-acrylate core-shell emulsion, 40 to 60 parts of polyether polyol modified nano filler, 15 to 25 parts of rubber nano powder, 10 to 20 parts of liquid polyisoprene, 22 to 34 parts of an auxiliary agent and 60 to 100 parts of a composite solvent. According to the low-temperature-resistant waterproof coating prepared by the invention, the elongation at break and the low-temperature bending resistance of a coating film are remarkably improved on the premise of keeping relatively good tensile strength and adhesive force.
Owner:SHAANXI TANGLONG COATINGS CO LTD

Surface low-energy silicon dioxide shell phase change microcapsule, moisture resistance control construction method thereof and application of surface low-energy silicon dioxide shell phase change microcapsule

The invention discloses a surface low-energy silicon dioxide shell phase change microcapsule, a moisture resistance control construction method and application thereof. Firstly, core-shell structure microcapsules with octadecane as a heat energy storage core material and silicon dioxide as a protective shell layer are prepared through an interfacial polymerization method, and phase change microcapsule powder is obtained. And then, constructing an alkylated low-energy interface layer on the surface of the microcapsule shell by utilizing an organosilane hydrolysis-condensation reaction. The phase change microcapsule treated by the method can effectively inhibit a shell layer from adsorbing free moisture in a humid environment, alleviate the phenomenon of interface instability at the initial stage of cement hydration, and improve the construction fluidity and circulating energy storage durability of a cement-based material. Meanwhile, the composite can be used as functional microparticles to be applied to building outer surface coatings, and antifouling, anti-infiltration and photo-thermal regulation and control effects are achieved. The method is simple, convenient and high in adaptability, large-scale production can be achieved, and a new solution is provided for construction of building functional materials with energy conservation, energy storage and interface stability.
Owner:SOUTHEAST UNIV

Preparation method of high-strength ceramsite

PendingCN121135367AClaywaresBrickRed mud
The invention relates to the field of building materials, in particular to a preparation method of high-strength ceramsite, which comprises the following steps: uniformly mixing brick powder, Bayer process red mud, ardealite and titanium gypsum to obtain mixed powder, adding a binder, uniformly mixing to prepare raw nodules, sequentially forming a transition layer and a shell layer on the surfaces of the raw nodules, drying, sintering and cooling to obtain the high-strength ceramsite. The prepared ceramsite is low in water absorption rate and excellent in mechanical strength, the core-shell structure can effectively inhibit release of chloride ions, solid waste is fully utilized, environmental pressure is relieved, waste is turned into wealth, two purposes are achieved, and the ceramsite has certain social, economic and ecological benefits.
Owner:江苏淮晨环保科技有限公司

A design method of a carrier for a core-shell type repair agent for concrete crack self-repair

The application discloses a design method of a core-shell type repairing agent carrier for concrete crack self-repairing. The method belongs to the technical field of building materials and is based on the strength grade of applied concrete, the crack width, the crack area and the repairing component parameters, and a core-shell carrier with the inner and outer radii, the elastic modulus and the particle strength matched with the matrix concrete is designed based on the loading capacity and the mechanical response principle. The specific design steps are as follows: the inner radius of the core-shell structure carrier is determined based on the loading capacity design; the suitable outer radius of the carrier is determined according to the regional stress field distribution characteristics; the suitable elastic modulus of the carrier is determined according to the material parameters of the matrix concrete; and the particle strength design value of the core-shell carrier is determined according to the above parameters. The carrier designed by the method has reasonable loading capacity, is matched with the parameters of the concrete matrix and has no negative influence on the matrix strength.
Owner:SOUTHEAST UNIV

Composite saltpetering-resistant agent, saltpetering-resistant and yellowing-resistant colored facing mortar and preparation method of composite saltpetering-resistant and yellowing-resistant colored facing mortar

The invention relates to the technical field of building materials, in particular to a composite saltpetering-resistant agent, saltpetering-resistant and yellowing-resistant colored facing mortar and a preparation method thereof.The composite saltpetering-resistant agent comprises a cation adsorption phase, a light stabilization phase and a hydrophobic phase; the cation adsorption phase is of a porous skeleton structure and comprises zeolite activated by acid and modified by organic functional groups; the light stable phase is a core-shell structure nano-composite and comprises a metal oxide core and a silicon dioxide shell; silanol groups of the hydrophobic phase are covalently bonded with hydroxyl groups on the surfaces of the cationic adsorption phase and the light stable phase. According to the technical scheme provided by the invention, the core problems of saltpetering, yellowing and insufficient durability of traditional facing mortar are synergistically solved by constructing a triple protection mechanism of chemical adsorption, physical barrier and light stability, the key indexes such as the saltpetering-resistant qualification rate, the weather resistance grade and the strength retention rate of the facing mortar can be improved, and the facing mortar has the advantages of high strength, high durability and the like. Furthermore, the decoration effect durability and the engineering applicability of the colored facing mortar are improved.
Owner:ZHUHAI XIANGBANG ENVIRONMENTAL PROTECTION BUILDING MATERIALS CO LTD

Glass fiber reinforced plastic as well as preparation method and application thereof

PendingCN121319579AEpoxyGlass fiber
The invention discloses a glass fiber reinforced plastic as well as a preparation method and application thereof, belongs to the field of building energy-saving composite materials, and aims to solve the problems that the interface of the existing glass fiber reinforced plastic for glass fiber reinforced plastic doors and windows is easy to hydrolyze, and the mechanical property conflicts with the thermal insulation property. Raw materials of the material comprise epoxy modified unsaturated polyester resin, S-glass fiber cloth, a silane-titanate composite treating agent, core-shell structure glass beads and the like, and the material is prepared through fiber composite modification, bead preparation and composite molding. The interface stability is improved through bifunctional group modification, heat conduction is reduced through core-shell and particle size grading microspheres, mechanical support is guaranteed through S-glass fibers, the tensile strength is larger than or equal to 85 MPa, the heat conductivity coefficient is smaller than or equal to 0.09 W / (mK), glass fiber reinforced plastic door and window manufacturing is adapted, existing equipment is reused, and the high-efficiency and energy-saving industry direction is met.
Owner:HR COMPOSITES CO LTD

Separation membrane containing inorganic material with core-shell structure and method for manufacturing the same

The present invention relates to a separation membrane comprising a separation membrane substrate having a porous structure and a coating layer formed on at least one surface of the separation membrane substrate, wherein the coating layer comprises a surface-modified inorganic material having a core-shell structure in which a polymer is bound to the surface of inorganic particles.
Owner:LG ENERGY SOLUTION LTD

Water purifier mounting structure with filter element fool-proof mounting structure

The utility model discloses a water purifier mounting structure with a filter element fool-proof mounting structure, which comprises an outer surrounding shell, an inner mounting shell is fixedly mounted in the outer surrounding shell, a front panel is fixedly mounted on the outer surface of one side of the inner mounting shell, an insertion fool-proof mechanism is arranged on the side surface of an insertion rotating plate, and the insertion fool-proof mechanism is fixedly mounted on the outer surface of one side of the inner mounting shell. By means of the insertion fool-proof mechanism, the situation that the water purifier cannot be used due to the fact that the filter element is wrongly inserted in the using process is avoided. According to the water purifier mounting structure provided with the filter element fool-proof mounting structure, a filter element needs to be replaced when a water purifier is used for a long time, at the moment, a filter element shell can be taken out, then a new filter element shell can be inserted into the inner sides of an insertion rotating plate and an insertion clamping jaw, an insertion groove and an insertion protruding block are clamped, and the filter element can be conveniently replaced. And after the filter element shell is inserted by a wrong model, the insertion convex block is blocked, so that the filter element shell cannot be inserted into the insertion rotating plate, and the probability of wrong insertion of the filter element shell is reduced.
Owner:SHANGHAI REDIFACE INTELLIGENT TECHNOLOGY CO LTD

Composite material spherical particles for paving ground as well as preparation method and use method of composite material spherical particles

The invention discloses a composite material spherical particle for paving a ground, and a preparation method and a use method of the composite material spherical particle. The spherical particle is of a core-shell structure and contains cork particles, coffee grounds powder and polyurethane, the cork particles are located in the middle, and coffee grounds and polyurethane are evenly coated on the outer surface of the cork particles. The preparation method comprises the following steps: granulating on a centrifugal granulator, and gradually and uniformly coating the polyurethane and the coffee residue powder on the outer surfaces of the cork particles to obtain a semi-finished product; and carrying out microwave heating to obtain a finished product. When the ground is paved, a flat plate heating device needs to be used, the spherical particles are placed at the high-position end of a heating plate of the heating device, the spherical particles roll to the ground needing to be paved while being heated, the spherical particles falling in place are compacted immediately, and paving is completed. When the cork-coffee residue-polyurethane composite material spherical particles provided by the invention are used for paving an outdoor runway, the advantages in the aspects of prolonging the service life of the runway, improving the use performance, protecting the environment, reducing the economic cost and the like are outstanding.
Owner:SHANGHAI CAIJIAN INFORMATION TECHNOLOGY CO LTD

Construction method and application of ternary composite photocatalyst

The invention relates to a construction method and application of a ternary composite photocatalyst, and the construction method comprises the following steps: step 1, synthesizing Bi2MoO6: taking Bi (NO3) 3.5 H2O and Na2MoO4. 2H2O as precursors, reacting for 12 hours at 180 DEG C by adopting a hydrothermal method, and centrifugally washing and drying to obtain Bi2MoO6 powder; step 2, loading Fe3O4 nanoparticles on the surface of Bi2MoO6 to form a composite core-shell structure: mixing FeCl3. 6H2O, FeCl2. 4H2O and the Bi2MoO6 powder obtained in the step 1, heating to 80 DEG C under the protection of nitrogen, adding a NaOH solution to adjust the pH value to 10, and reacting for 1 hour to form a Fe3O4 / Bi2MoO6 core-shell structure composite material; step 3, anchoring Ag nano-particles: dispersing the Fe3O4 / Bi2MoO6 composite material obtained in the step 2 in water, adding an AgNO3 solution, stirring in a dark place, and then anchoring Ag nano-particles on a xenon lamp (lambda gt; and reducing Ag < + > into Ag0 under the irradiation of SiO2 / Bi2MoO6, thereby obtaining the Fe3O4 / Bi2MoO6 / Ag composite photocatalyst. The Fe3O4 / Bi2MoO6 / Ag composite photocatalyst is a novel Fe3O4 / Bi2MoO6 / Ag composite photocatalyst, light absorption is enhanced through plasma resonance, carrier separation is promoted through heterojunction, magnetic recovery of Fe3O4 is achieved, and the bottleneck is solved.
Owner:泰州学院

Lightweight sound-absorbing building material, method for its production and application in suspended ceiling

ActiveCN120841935BFiberBarium titanate
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.
Owner:GUANGZHOU MEGA BUILDING MATERIALS TECH CO LTD

Burning-free steam-curing-free all-solid waste type iron tailing artificial fine aggregate and preparation method thereof

The invention relates to the technical field of building materials, and discloses a burning-free steam-curing-free all-solid waste type iron tailing artificial fine aggregate and a preparation method thereof.The preparation method comprises the following steps that iron tailings are dried and screened, and iron tailing powder with the particle size smaller than 0.3 mm is obtained; mixing the pozzolanic material, the exciting agent, the expanding agent and the reinforcing agent, and uniformly stirring to obtain an all-solid waste cementing material; the iron tailing powder and part of the all-solid waste cementing material are mixed, ground and stirred evenly, and a mixture is obtained; carrying out rolling and watering treatment on the mixture to obtain iron tailing microspheres with the diameter of 1-4mm; adding the residual all-solid waste cementing material into the iron tailing microspheres for rolling treatment, so that the surfaces of the iron tailing microspheres are wrapped with the all-solid waste cementing material, and composite particles with core-shell structures are obtained; the composite particles of the core-shell structure are subjected to curing treatment, and the iron tailing artificial fine aggregate is obtained. Energy consumption, carbon emission and production cost can be reduced, high-value utilization of multi-element solid waste is realized, and shortage of natural gravel aggregate is relieved.
Owner:TIANJIN METALLURGICAL SPECIAL MATERIALS CO LTD +2

Medium-heat Portland cement and preparation method thereof

PendingCN121449352ACrack resistanceMicrosphere
The invention belongs to the technical field of building materials, and particularly relates to moderate heat Portland cement and a preparation method thereof, and the cement is composed of Portland cement clinker, gypsum, blast furnace slag and two novel inorganic modified compounds. According to the invention, calcium aluminum silicon nitrogen oxide nanosheets and calcium zirconate coated lithium zinc borosilicate core-shell microspheres are innovatively introduced as functional modifiers. The two-dimensional structure of the two-dimensional structure plays dual roles of nucleation and shielding in the cement hydration process, so that the early strength development can be promoted, and the heat release process can be delayed; the latter generates controllable expansion in a specific hydration stage by virtue of a core-shell structure, so that the shrinkage stress is effectively compensated, and the anti-cracking performance is remarkably improved. The preparation method comprises the working procedures of raw material crushing, segmented grinding, homogenizing stirring and the like. The obtained cement product has excellent early strength, long-term durability and volume stability while keeping the low hydration heat characteristic, and is suitable for construction of major water conservancy projects and infrastructures which have strict requirements on temperature control of mass concrete.
Owner:LIAONING JIAOTONG CEMENT CO LTD

A fast-curing repair mastic and a method of making the same

This application provides a fast-curing joint repair compound and its preparation method. The fast-curing joint repair compound comprises the following raw materials in parts by weight: 50 parts silicate cement, 40-60 parts styrene-acrylic emulsion, 5-10 parts modified slag, 0.4-1 parts hollow microspheres, 0.5-1.5 parts glass fiber, 100-150 parts quartz sand, 0.1-0.3 parts dispersing suspending agent, 0.1-1 parts defoamer, and 20-40 parts water. The modified slag has a core-shell structure, comprising, in sequence, a slag core, calcium salt components loaded on the surface or in the pores of the slag core, a humate layer formed on the surface, and a quaternary ammonium salt cationic polymer layer coating the outside of the humate layer. This joint repair compound has the characteristics of short initial setting time, high early strength, and good construction rheology, and is suitable for building joint repair, road maintenance, and concrete structure repair.
Owner:HUBEI PUNI NEW BUILDING MATERIALS CO LTD

Radiation-proof ultra-high performance concrete with carbonized steel slag and phosphogypsum lightweight aggregate and preparation method thereof

The present application relates to cement-based building material technical field, especially to a kind of carbonized steel slag phosphogypsum light aggregate anti-radiation super high performance concrete and preparation method thereof, the present application uses cement as main cementitious material, adds composite admixture, utilizes steel slag and phosphogypsum to prepare light aggregate with core-shell structure, and cooperates with copper-plated steel fiber, and the anti-radiation super high performance concrete with good fluidity, high mechanical property, low shrinkage, strong neutron radiation resistance is prepared.
Owner:WUHAN UNIV OF TECH

Composite material with near-zero temperature coefficient, preparation method and application

The invention discloses a composite material with a near-zero temperature coefficient. The composite material comprises composite particles with three layers of core shells, the composite particle comprises a metal organic framework serving as an inner core, a conductive carbon transition layer serving as a middle layer and a gradient doped tin oxide layer serving as a shell, and the resistance temperature coefficient symbols of materials of the inner core and the shell are opposite within the range of 0-80 DEG C. According to the composite material with the near-zero temperature coefficient, a three-layer core-shell structure of a metal organic framework core / a conductive carbon transition layer / a gradient doped SnO2 shell is adopted, mutual offset of temperature coefficients can be achieved in the material, and therefore drifting of baseline resistance generated along with fluctuation of the environment temperature is reduced.
Owner:SPECIAL EQUIP SAFETY SUPERVISION INSPECTION INST OF JIANGSU PROVINCE

Machining deformation control method for thin-wall component

The invention relates to a thin-wall component machining deformation control method which comprises the following steps that a tool is used for cutting a blank, a core shell is manufactured, the core shell is provided with a main shell body and an auxiliary shell body, the outer diameter of the main shell body is larger than that of the auxiliary shell body, a main end hole is further formed in the main shell body, an auxiliary end hole is further formed in the auxiliary shell body, and a process block is further arranged in the auxiliary end hole; a protective belt is wound on the surface of the main shell, so that the core shell and the protective belt form a core shell assembly; partial materials of the main shell and the protective belt are cut off through a cutter, feature holes are formed in the surface of the core shell assembly, and then the cutter is used for cutting off the process blocks; and after the core shell assembly, the positioning plate and the machine tool spindle are separated from one another, machining is finished. By adopting the technical scheme provided by the invention, after the residual thermal stress in the core shell is greatly released by changing the process sequence, the protection belt is wound, and then the characteristic hole is formed by cutting, so that the shrinkage deformation difference between the protection belt and the core shell is reduced, and the machining precision and the appearance quality of the core shell assembly are improved.
Owner:GUIZHOU AEROSPACE FENGHUA PRECISION EQUIP CO LTD

Carbon-based ceramic tile back adhesive and preparation method thereof

The invention relates to the technical field of building materials, and particularly discloses a carbon-based ceramic tile back adhesive and a preparation method thereof. The carbon-based ceramic tile gum is prepared from the following raw materials in parts by weight: 90 to 110 parts of organic silicon modified epoxy resin, 10 to 20 parts of reactive diluent, 25 to 45 parts of composite functional filler, 1 to 3 parts of coupling agent, 0.5 to 1.5 parts of defoaming agent, 0.3 to 0.8 part of thixotropic agent, 40 to 60 parts of cardanol modified amine curing agent and 2 to 5 parts of accelerant, and the composite functional filler is a microcapsule with a core-shell structure. The organosilicon modified epoxy resin and the cardanol modified amine curing agent form a cross-linking system, the composite functional filler with the core-shell structure is adopted, phase change is generated to absorb or release latent heat when the temperature changes, the temperature gradient in the adhesive layer is stabilized, and thermal stress accumulation is reduced, so that through the synergistic effect of phase change energy storage and interface enhancement, the thermal stress performance of the adhesive layer is improved. Thermal stress damage is effectively buffered, and interface cracking and hollowing are avoided.
Owner:GUIZHOU NORTHED BUILDING MATERIALS CO LTD

A film for furniture packaging and a production process

The application relates to the field of film technology and discloses a film for furniture packaging and a production process, which comprises a film body, the film body comprises an LLDPE base, an mLLDPE base, a VLDPE base, carbon nanotubes, core-shell structure nanoparticles, a compatilizer, PCM capsules and silicone; the cross section of the film body is sequentially divided into an inner layer area, a middle area and an outer layer area; the outer layer area is provided with the LLDPE base, the VLDPE base and the carbon nanotubes; the middle area is provided with the LLDPE base, the mLLDPE base, the core-shell structure nanoparticles and the compatilizer; the inner layer area is provided with the LLDPE base, the PCM capsules and the silicone; and the silicone is located on the outer surface of the inner layer area. The above raw materials are mixed and extruded into a tubular film bubble through a co-extrusion machine, and the film body is formed through a film blowing process of stretching and cooling. The film body has high tensile strength, puncture resistance and tear resistance, can reliably resist the puncture of furniture corners and the collision in transportation.
Owner:GUANGDONG HAOYIDE NEW MATERIAL CO LTD