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40results about How to "Extended permeation path" patented technology

A laying board for temporary construction roads

The utility model provides a kind of laying plate for temporary construction road, belong to building construction technical field, to solve the problem of laying plate upper surface water and easily lead to safety hazard.This device includes multiple groups of road board main part, and the two sides of road board main part adjacent are respectively fixedly connected with the upper connecting plate and lower connecting plate connected by cooperation clamping;Connecting block, fixedly connected in the length direction both ends of lower connecting plate or upper connecting plate and provided with threaded hole;Upper slope plate and lower slope plate are set in the outermost side of multiple groups of connected road board main part and respectively connected with lower connecting plate and upper connecting plate clamping;Waterproof pad, set in road board main part and slope board lower surface;The combination surface between lower connecting plate and upper connecting plate, lower connecting plate and upper slope plate, upper connecting plate and lower slope plate is all maze structure.This device is through the form of cooperation clamping of maze and the setting of waterproof pad, reduce the safety hazard caused by laying plate surface water penetration to temporary construction road.
Owner:JINAN HAIHE CONSTR PROJECT MANAGEMENT CO LTD

A high-hygroscopic, water-free composite gel-type calcium and magnesium salt tablet and its preparation method

PendingCN122076408Ahighly hydrophilichigh viscoelasticityBiocideOther chemical processesPolyethylene oxideMagnesium salt
This invention provides a high-hygroscopic, water-free composite gel-type calcium and magnesium salt tablet and its preparation method, which is made from the following raw materials in parts by weight: 45-70 parts calcium and magnesium salt, 15-25 parts gum arabic, 3-15 parts mica powder, 2-12 parts polyethylene oxide, 0.5-2 parts sodium nitrite, and 2-30 parts gelatin. This tablet exhibits high hygroscopicity and excellent physical properties.
Owner:SUPER DRY DESICCANT SHENZHEN

Antibacterial food packaging bag for taro silk cake and preparation method thereof

The application relates to the technical field of food packaging materials, and discloses an antibacterial taro silk cake food packaging bag and a preparation method thereof. The antibacterial taro silk cake food packaging bag comprises an inner laminating layer and an outer functional layer. The preparation method of the antibacterial taro silk cake food packaging bag is as follows: prepared inner laminating layer material and outer functional layer material are respectively added into two hoppers of a two-layer co-extrusion blow molding machine, the extrusion temperature of the inner laminating layer is set to 160-180 DEG C, the extrusion temperature of the outer functional layer is set to 180-200 DEG C, the composite film is obtained by blow molding after head compounding, the composite film is cut into the required size, and then heat sealing is carried out under the conditions that the heat sealing temperature is 140-150 DEG C and the heat sealing time is 2-3 seconds to obtain the antibacterial taro silk cake food packaging bag. The antibacterial taro silk cake food packaging bag has good mechanical, barrier and antibacterial properties.
Owner:YONGZHOU DAIYAO FOOD TECH CO LTD

Polypropylene composite materials and their preparation methods and applications, cables

This application relates to a polypropylene composite material, its preparation method and application, and cables. By weight, the polypropylene composite material comprises the following components: 60-80 parts polypropylene, 20-40 parts ungrafted elastomer, 0.5-1.5 parts grafted elastomer, 0.01-0.2 parts β-nucleating agent, and 3-6 parts hydrophilic agent; the hydrophilic agent includes at least one selected from ethylene-acrylic acid copolymer, polyvinyl butyral, polyacrylic acid, polyvinyl alcohol, and ethylene vinyl alcohol copolymer. The components in this polypropylene composite material interact with each other, effectively improving the water-tree resistance of the polypropylene composite material, while also exhibiting high tensile strength and elongation at break.
Owner:ZHUHAI POWER SUPPLY BUREAU GUANGDONG POWER GIRD CO +2

A sericite modified silicone rubber material and a preparation method thereof

ActiveCN121592185Bchange surface propertiesUnique fluorophilic propertiesRubber materialPolymer science
The present application relates to the technical field of silicone rubber material, in particular to a sericite modified silicone rubber material and a preparation method thereof.The present application overcomes the problems of poor dispersion of sericite in the organic silicon matrix and poor compatibility of fluorosilicon and common silicon.The silicone rubber material is prepared from polysiloxane hybrid base glue prepared by in-situ polymerization of fluorine-containing / ethenyl double modified sericite, fluorosilicon raw rubber, methylphenylvinyl silicone rubber, MQ silicone resin, hydrogen-containing silicone oil and vulcanizing agent;the preparation process involves double functional group grafting on the surface of sericite, monomer in-situ ring-opening polymerization coating, multiphase blending to build interpenetrating network and hydrogen-containing silicone oil chain extension to cooperate with gradient vulcanization, through building a rigid-flexible stereo enhanced network, the material is endowed with excellent oil resistance, heat resistance and high mechanical strength, and can be used in the field of automobile manufacturing.
Owner:CHUZHOU WANQIAO SERICITE CO LTD

Hyperbranched epoxy resin anticorrosive paint and preparation method thereof

The invention relates to the field of anticorrosive paint, in particular to hyperbranched epoxy resin anticorrosive paint and a preparation method thereof. The coating is a two-component system, wherein a component A comprises an epoxy resin main body, 5-20 parts of a hydroxyl-terminated hyperbranched polyester modifier, a flaky filler, an anti-rust pigment, a reactive diluent and an auxiliary agent; the algebra of the hyperbranched polyester is G2-G4, and the hyperbranched polyester is prepared by melt polycondensation of trimethylolpropane and 2, 2-dimethylolpropionic acid; and the component B is a polyamide curing agent. The preparation method comprises the following steps: synthesizing hyperbranched polyester; pre-mixing the component A with epoxy resin, grinding and dispersing with filler and auxiliaries, and mixing paint to obtain a component A; mixing a curing agent with a coupling agent to obtain a component B; by utilizing the unique structure of the hyperbranched polyester, the epoxy coating is obviously toughened on the premise of not losing the hardness, the viscosity of the system is reduced, the constructability and the filler dispersity are improved, and finally the high-performance coating with impact resistance, strong adhesion and long-acting corrosion resistance is obtained.
Owner:LONGYUAN SHAANXI WIND POWER GENERATION CO LTD

A dynamic seal waterproof structure and lathe spindle box

ActiveCN224406450UImprove water rejection efficiencyAccelerated disengagementCentrifugal forceCooling fluid
The utility model discloses a kind of dynamic sealing waterproof structure and lathe spindle box, including main shaft flange, sheath, front gland and rear end sealing assembly, the outer circle of main shaft flange is provided with water throwing groove outwardly with slope, cooling liquid is thrown to the water accumulation groove of sheath inner wall by centrifugal force, and discharge through drain hole, the annular protrusion of front gland and the positioning groove of main shaft flange form labyrinth seal, extend liquid penetration path, residual penetration is blocked by combining internal turbulent flow and pressure difference, rear end is sealed by rear sealing ring and rear gland Dustproof Anti-fog by axial;When main shaft rotates, flange outer circle and shaft neck form outward airflow, cooperate with centrifugal force to accelerate drainage and block backflow;Multi-stage sealing design adapts full speed condition, low speed relies on mechanical water throwing, high speed uses pressure difference to strengthen efficiency, compact structure and convenient maintenance, significantly reduce leakage risk, prolong bearing life, applicable to complex workpiece efficient processing.
Owner:MAANSHAN WANMA MACHINE BUILDING

A stainless steel surface treatment composite coating and a method for preparing the same

PendingCN122502966AExtended permeation pathAvoid migration and precipitation
This invention discloses a composite coating for stainless steel surface treatment and its preparation method, belonging to the field of high-performance coating technology, and classified under patent number C09D133 / 12. The method first prepares amino-modified nano-alumina, and then constructs a triple corrosion-resistant modification system containing sodium molybdate for synergistic corrosion inhibition through phytic acid chelation and hybrid siloxane sol composite. Simultaneously, polymerizable UV-absorbing and hindered amine functional monomers are synthesized and copolymerized with acrylate to form an aging-resistant emulsion. By combining these two with key nano-hydrotalcite and epoxidized soybean oil, the threat of hydrolytic desorption of ester bonds by residual acidic phosphate groups is effectively eliminated, and a flexible interface transition layer is constructed, ensuring the synergistic effect of the coating's corrosion resistance and aging resistance. The resulting coating exhibits excellent physical shielding, chemical passivation, and long-lasting photostability, significantly extending the service life of stainless steel in outdoor environments.
Owner:QINGDAO DAYANG XINGYE METAL PROD CO LTD

D230-gO / cS-ep composite anticorrosive paint and preparation method thereof

PendingCN122356999AExcellent pH-responsive self-healing abilityInhibit corrosion expansionPolymer scienceFirming agent
This invention discloses a D230-GO / CS-EP composite anti-corrosion coating and its preparation method, belonging to the field of polymer materials technology. The composite anti-corrosion coating disclosed in this invention comprises epoxy resin E51, polyetheramine-D230 curing agent, chitosan (CS), isophorone diisocyanate (IPDI), and aminated graphene oxide (D230-GO) grafted with polyetheramine-D230. Specifically, by using isophorone diisocyanate (IPDI) to covalently crosslink the epoxy resin and chitosan, the compatibility problem of chitosan in epoxy resin is successfully solved. Simultaneously, the aminated graphene oxide is uniformly dispersed in this crosslinked network, and its large specific surface area and excellent barrier properties significantly improve the density and interfacial bonding strength of the coating. Furthermore, the covalent crosslinked network formed by chitosan and epoxy resin can enhance the self-healing properties of the epoxy resin coating itself.
Owner:FOSHAN UNIVERSITY

Hybrid particles, methods of making and using the same, and low gas permeable rubber composites

PendingCN122502265AExtended permeation pathreduce escape
This application relates to the field of rubber materials technology, and discloses a hybrid particle, its preparation method and application, and a low-gas-permeability rubber composite material. The general chemical structural formula of the hybrid particle is: M n+ ( ‑ OOC) n -RM n+ It is a coordinating metal cation, ( ‑ OOC) n -R represents the carboxylate ion. This application describes the preparation of novel hybrid particles by organic carboxylic acids and inorganic metal ions through organic-inorganic coordination hybridization. Benefiting from the partially organic properties and low surface polarity of these hybrid particles, they exhibit excellent compatibility with the rubber matrix. When introduced into rubber, they can disperse well in the rubber matrix and form excellent interfacial bonds without additional modification. This significantly extends the gas permeation path in the rubber network and effectively reduces gas escape at weak interfaces, thereby greatly improving the gas barrier properties of the rubber material and reducing gas permeation.
Owner:SOUTH CHINA UNIV OF TECH

Double-layer waterproof rear axle and electric tricycle

ActiveCN224117055UExtended permeation pathisolated fromEngine sealsAxle unitsWater vaporStructural engineering
The utility model relates to the technical field of double-layer waterproof rear axles, and discloses a double-layer waterproof rear axle which comprises a rear axle assembly, two transmission assemblies and two wheel end assemblies, the two transmission assemblies are symmetrically connected to the two sides of the rear axle assembly, and the two wheel end assemblies are arranged at the ends, away from the rear axle assembly, of the corresponding transmission assemblies respectively. The rear axle assembly is used for outputting driving force, and the transmission assembly is used for effectively transmitting the driving force to the wheel end assembly, so that the electric tricycle is driven. According to the structure, the brake hub and the brake hub cover ingeniously construct a first-layer labyrinth type waterproof barrier, water vapor entering is reduced, a second heavy oil sealing ring is additionally arranged between the first through holes formed in the half shaft and the axle shaft, a double-layer sealing system with the synergistic effect is formed, water vapor is thoroughly isolated, a rear axle assembly is prevented from being corroded by the water vapor, and the service life of the rear axle assembly is prolonged. The problems of transmission part corrosion, lubricating oil emulsification, transmission system faults and the like caused by internal damp are avoided, and it is ensured that the interior of the rear axle is always in a dry and stable working state.
Owner:CHANGZHOU HAOJUE SUZUKI MOTORCYCLE CO LTD

Split bolt and thermal insulation wallboard prefabricated outer wall cast-in-situ abutted seam construction structure

The utility model discloses a split bolt and heat preservation wallboard prefabricated outer wall cast-in-place abutted seam construction structure, the split bolt comprises a water stop piece, a detachable screw, a movable nut and a fastening nut, the water stop piece comprises a water stop plate and internal thread sleeves, and one ends of the two internal thread sleeves are connected with the side faces of the two sides of the water stop plate; one ends of the two detachable screws are screwed in the two internal thread sleeves, and the other ends of the two detachable screws are sequentially screwed with the movable nut and the fastening nut; according to the cast-in-place abutted seam construction structure for the prefabricated outer wall of the thermal insulation wallboard, split bolts penetrate through a cast-in-place concrete wall connecting section and formworks on the two sides of the cast-in-place concrete wall connecting section, and water stopping pieces are arranged in the cast-in-place concrete wall connecting section, so that the permeation path of water can be increased; after the construction of the cast-in-place concrete connecting section is finished and the detachable screw rod of the split bolt is detached, no hole penetrating through the indoor space and the outdoor space exists; foaming polyurethane pipe holes are supplemented, the outer surface is protected by cement mortar, and rainwater on the outer wall is prevented from permeating into a room through bolt holes which are not tightly blocked.
Owner:QINGDAO TENGYUAN DESIGN ACCOUNTANTS CO LTD

A display panel and display device

PendingCN122121503AExtended permeation pathProlonged diffusion timeInsulation layerDisplay device
The application provides a display panel and a display device, wherein the display panel comprises a display area and a non-display area, the non-display area is arranged around the periphery of the display area; the non-display area of the display panel comprises a substrate, a buffer layer arranged on one side of the substrate, a planar layer arranged on the side of the buffer layer away from the substrate, an inorganic encapsulation layer arranged on the side of the planar layer away from the buffer layer, and a touch insulation layer arranged on the side of the inorganic encapsulation layer away from the planar layer; wherein the buffer layer is provided with a convex area along a first direction, the convex area is located in the orthographic projection of the planar layer on the buffer layer; the first direction is the direction from the display area to the non-display area; the side of the buffer layer away from the convex area along the first direction is provided with an opening structure; the opening structure penetrates to the substrate along the thickness direction to deposit the inorganic encapsulation layer and the touch insulation layer.
Owner:BOE TECHNOLOGY GROUP CO LTD +1

An impact-resistant epoxy resin modified mortar and a method for preparing the same

PendingCN122586500AImprove stress resistanceImprove flexural performance
The application discloses an impact-resistant and wear-resistant epoxy resin modified mortar and a preparation method thereof, and relates to the technical field of mortar.The application comprises the following raw materials in mass parts: deionized water 170-190 parts, modified boron nitride synergist 13.13-14.38 parts, water reducing agent 0.8-1.2 parts, tributyl phosphate 0.6-0.8 parts, composite modified porous polysiloxane microspheres 26.25-28.75 parts, water-based epoxy resin 21-23 parts, Portland cement 420-460 parts, sulphoaluminate cement 105-115 parts, concrete expansive agent 15.75-17.25 parts, river sand 1050-1150 parts, water-based epoxy curing agent 27.3-29.9 parts.The introduction of the modified boron nitride synergist and other raw materials in the application simultaneously improves the compressive strength, the bending strength, the impact strength, the wear resistance, the anti-cavitation ability, the aging resistance and the alkali corrosion resistance.
Owner:HUNAN JINXU NEW MATERIAL CO LTD

A photovoltaic bracket material resistant to hot and humid corrosion and a preparation method thereof

PendingCN122081839AExtended permeation pathImprove resistance to moisture and heat corrosionHot-dipping/immersion processesPhotovoltaic energy generationAlloyThermal water
This invention relates to the field of alloy bracket materials technology, and discloses a photovoltaic bracket material resistant to damp heat corrosion and its preparation method, comprising the following steps: a steel coil is sequentially degreased with alkaline solution, pickled with hydrochloric acid, and finally rinsed with hot water and dried to obtain a clean steel coil; the clean steel coil is hot-rolled, cooled, and coiled to obtain a hot-rolled steel coil; the hot-rolled steel coil is immersed in a composite plating solution for continuous hot-dip galvanizing, cooled, and finished to obtain the photovoltaic bracket material. This method can form a damp heat corrosion resistant layer on the surface of the photovoltaic bracket material, and the damp heat corrosion resistant layer has extremely strong adhesion to the steel substrate, avoiding the problems of rust and coating peeling that easily occur during long-term service of the photovoltaic bracket material.
Owner:NANJING HUINENG FUSION NEW ENERGY TECH CO LTD

Display device

The present disclosure relates to a display device. The display device includes a substrate in which a display area and a non-display area are defined, a thin film transistor disposed on the substrate corresponding to the display area, a gate driver disposed on the substrate corresponding to the non-display area, a protection layer disposed to cover the thin film transistor and the gate driver, a planarization layer disposed on the protection layer and including a plurality of openings exposing at least a portion of the protection layer in the non-display area, an organic light emitting diode disposed on the planarization layer so as to be electrically connected to the thin film transistor in the display area, and a nanoparticle layer disposed above the protection layer overlapping the plurality of openings. The nanoparticle layer includes nanoparticles surface-modified with a hydrophobic functional group.
Owner:LG DISPLAY CO LTD

A method for preparing zinc phosphate with a sheet-like structure

This invention belongs to the field of materials preparation and discloses a method for preparing plate-like zinc phosphate, comprising the following steps: (1) adding an inducing agent to a phosphoric acid solution; (2) adding the mixed solution from step (1) to a zinc oxide slurry, stirring the mixture at 60-90°C, and filtering and drying the reaction product after the reaction to obtain plate-like zinc phosphate. This invention directly controls the growth morphology of plate-like crystals through an aqueous synthesis reaction, eliminating the need for ultrafine grinding, reducing process flow and equipment investment, lowering energy consumption per unit product, and meeting the requirements of green manufacturing.
Owner:ZHUZHOU JINQIAO ZINC IND CO LTD

A fast-curing epoxy floor coating and a method for preparing the same

PendingCN122278348AExtended permeation pathRealize physical hydrophobicityPolymer scienceHigh humidity
This invention relates to a rapid-curing epoxy floor coating and its preparation method, belonging to the field of coating technology. Through the synergistic effect of hydrophobic modification of siloxanes and shielding by three-dimensional network blended fillers, a comprehensive anti-corrosion and water-resistant system from the surface to the interior is constructed. This solves the common industry problems of high water absorption, easy water vapor penetration, easy whitening and blistering under long-term high humidity, and interlayer delamination in traditional water-based epoxy floor coatings. In the preparation process of the modified epoxy resin, long-chain hydrophobic flexible segments of polypropylene glycol are introduced, and hydrophobic segments are also introduced through esterification grafting to achieve physical hydrophobicity. Then, hyperbranched macromolecules are synthesized in situ, and flexible acidified polyamide is covalently bonded to rigid lanthanum trioxide, constructing a continuous three-dimensional cross-linked network inside the coating. This fills the micropores of the epoxy matrix, extends the penetration path of corrosive media, and improves the anti-corrosion performance of the epoxy floor coating in harsh corrosive environments.
Owner:ANHUI XIBAO HIGH POLYMER MATERIAL CO LTD

Cover plate, control box and compressor

This utility model relates to the field of compressor technology, specifically disclosing a cover plate, a control box, and a compressor. The cover plate includes a cover body and a light-transmitting plate. One of the light-transmitting plate and the cover body is provided with a groove, and the other is provided with a protrusion. Both the groove and the protrusion are annular and arranged around the opening. When the protrusion and the groove are in the insertion state, the gap between at least two insertion mating surfaces of the protrusion and the corresponding insertion mating surfaces of the groove is filled with a connecting layer. The connecting layer is used to seal the gap between at least two insertion mating surfaces of the protrusion and the corresponding insertion mating surfaces of the groove, which can effectively extend the liquid penetration path, strengthen the structural strength of the connection position between the light-transmitting plate and the cover body, reduce the damage to the connecting layer caused by the shear force formed at the connection due to the warping deformation of the cover body or the light-transmitting plate, and improve the sealing stability of the connecting layer.
Owner:SUZHOU INVOTECH SCROLL TECH

Tungsten diboride-based composite nano multilayer film and preparation method and application thereof

PendingCN121976161AAlleviate thermal expansion coefficient differencesreduce internal stressVacuum evaporation coatingSputtering coatingChromium carbideSputtering
The invention discloses a tungsten diboride-based composite nano multilayer film as well as a preparation method and application thereof. The thin film comprises a chromium transition layer and a composite nanometer multilayer structure which are sequentially arranged on the surface of a base body in a stacked mode in the thickness direction of the thin film, the composite nanometer multilayer structure comprises a plurality of periodic units arranged in a stacked mode, and each periodic unit comprises a chromium carbide nanometer layer and a tungsten diboride-carbon nanometer layer. The preparation method comprises the following steps: depositing a chromium transition layer on the surface of a substrate by adopting a magnetron sputtering technology, sequentially laminating and depositing a chromium carbide nano layer and a tungsten diboride-carbon nano layer on the chromium transition layer to form periodic units, and repeatedly preparing a plurality of periodic units to prepare the thin film. The film has the advantages of high temperature resistance, extremely low friction, strong binding force and the like, and can be applied to substrate surface protection in an extreme environment.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD OF SCI

Gate anti-fouling corrosion-resistant biomimetic nano-coating structure

The utility model relates to gate coating technical field, and disclose a kind of gate stain-resistant anticorrosive bionic nano coating structure, comprising: gate substrate, its outer surface is equipped with coating part, coating part is from inside to outside in turn base layer, primer, intermediate coating, functional layer and nano anticorrosive coating, base layer is treated by sand throwing, can increase gate substrate surface roughness, improve the bonding force with subsequent primer, ensure that coating adheres firmly;Primer uses polyurethane cloud iron labyrinth rust-proof technology, utilize labyrinth structure to prolong the penetration path of corrosive medium, enhance rust protection;Intermediate coating is inorganic silica-alumina ceramic coating, with excellent chemical stability and wear resistance, can further block outside corrosive medium invasion, improve overall protection performance;Functional layer and nano anticorrosive coating use nano bionic lotus leaf hydrophobic layer, with water-repellent effect, reduce moisture adhesion by virtue of superhydrophobic characteristics, reduce stain adhesion ability.
Owner:VERDI (GUANGZHOU) BIOENGINEERING TECH CO LTD

Sealing structure and layered water taking device

The utility model discloses a kind of sealing structure and layered water taking device, sealing structure includes cabin and cover plate, the side of cabin towards the cover plate is provided with annular groove, the cover plate is embedded in the annular groove, the cabin and the cover plate are connected by fastener, the cabin defines installation cavity, electrical assembly is equipped in the installation cavity, first sealing element is clamped between the inner wall of the annular groove and the cover plate, second sealing element is clamped on the opposite large surface of the cabin and the cover plate, the first sealing element and the second sealing element are sequentially annularly arranged outside the electrical assembly and are spaced apart. According to the sealing structure of the application, water vapor can be isolated, and the sealing performance is good.
Owner:POWER CHINA KUNMING ENG CORP LTD

A plug structure for bus ducts

ActiveCN224669411UAvoid sealing failure due to penetrationblock penetration paths
The utility model relates to the technical field of bus duct accessories, especially to a plug structure for bus duct, which comprises a bus duct cover plate and a plug arranged at the end of the bus duct cover plate, the plug comprises a connector and a water baffle, the water baffle is provided with a plug-in part at the top, the connector is provided with a matching part matched with the plug-in part, the side of the connector away from the matching part is provided with a connecting lug, and the connecting lug extends to the outside of the bus duct cover plate. The utility model can effectively block the penetration path of moisture, improve the waterproof performance of the plug structure, prevent moisture from penetrating into the bus duct, and thus avoid problems such as a decrease in insulation performance, short circuit, and even equipment damage, thereby ensuring the normal operation of the power system.
Owner:FOSHAN SHUNDE DISTRICT GULING ELECTRIC CO LTD +1

High air tightness door frame for intelligent armored door and processing equipment thereof

PendingCN122106369AExtended permeation pathImplement dynamic adaptive compensationSealing arrangementsMetal working apparatusHydraulic cylinderControl engineering
The application discloses a high-air-tightness door frame for an intelligent armored door and a processing equipment thereof. The door frame comprises a high-air-tightness inner frame and a compensation sealing element. The high-air-tightness inner frame is a three-step-face inner frame structure. A hard sealing strip is arranged on the lower step face, a soft sealing strip is arranged on the middle step face, and the upper step face is provided with the compensation sealing element. The compensation sealing element is elastically and slidably installed in a compensation recess through a spring. A dust-blocking table is arranged above the opening of the compensation recess, and the opening is in a horn shape. The processing equipment comprises a processing platform, a clamping hydraulic cylinder, a limiting air cylinder, an inner frame horizontal limiter and an inner frame vertical limiter. The inner frame horizontal limiter is provided with horizontal rollers, and the inner frame vertical limiter is provided with vertical rollers. The three-step-face inner frame and the compensation sealing element form a multi-stage ladder type sealing system, dynamic self-adaptive compensation is realized, automatic and accurate assembly is completed in cooperation with the special processing equipment, and the air tightness, long-term use stability and assembly efficiency of the door frame are significantly improved.
Owner:ZHEJIANG HUAWEI DOOR IND CO LTD

Waterproof wear-resistant high-strength kraft paper

The utility model discloses waterproof wear-resistant high-strength kraft paper which comprises a kraft paper base material, and a first waterproof adhesive layer, a first wear-resistant layer, a first flame-retardant layer and a first protective layer which are sequentially connected from inside to outside are respectively arranged on a first surface of the kraft paper base material; and a second waterproof adhesive layer, a second wear-resistant layer, a second flame-retardant layer and a second protective layer which are sequentially connected from inside to outside are respectively arranged on the second surface of the kraft paper base material. The waterproof, wear-resistant and flame-retardant composite material is simple in structure and reasonable in design, and has better waterproof, wear-resistant and flame-retardant effects, and the kraft paper base material is the kraft paper soaked with thermosetting phenolic resin, so that the structural strength of a product is greatly improved, and the tensile capacity is improved; in addition, the fiber net-shaped structures formed by longitudinally and transversely interweaving the polytetrafluoroethylene fibers and the carbon nanofibers are embedded in the two waterproof adhesive layers, so that the mechanical performance of the product can be enhanced, the tensile capacity can be improved, the water molecule permeation path can be prolonged, and the waterproof performance is further enhanced.
Owner:GUANGDONG CHAOLUN NEW MATERIALS CO LTD

Polysiloxane anticorrosive paint as well as preparation method and application thereof

The invention discloses a polysiloxane anticorrosive coating as well as a preparation method and application thereof. The polysiloxane anticorrosive paint comprises a component A and a component B, the component A and the component B are matched according to the mass ratio of (6-16): 1 during use, the component A comprises epoxy-terminated polysiloxane, polyether epoxy co-modified silicone oil, pigment, filler, a dispersing agent, a defoaming agent, a rheological additive and a solvent, and the component B comprises amino silane and a curing accelerator. The polysiloxane anticorrosive paint can be cured at normal temperature, a formed paint film is large in crosslinking density, good in flexibility, good in corrosion resistance, outstanding in weather resistance and good in shielding property, the polysiloxane anticorrosive paint can be used for metal corrosion prevention in a special corrosive environment, the preparation method is simple, and the polysiloxane anticorrosive paint is suitable for large-scale industrial production and application.
Owner:GUANGDONG PEARL RIVER CHEM IND COATING CO LTD

EVOH / organically modified mica powder high-barrier composite blown film and preparation method thereof

PendingCN122541864Alow gas permeabilityHigh gas barrier
This invention discloses a high-barrier composite blown film of EVOH / organically modified mica powder and its preparation method, belonging to the field of polymer composite materials and food packaging technology. The composite blown film consists of 90-99 parts by weight of blow-molding grade ethylene-vinyl alcohol copolymer and 1-10 parts by weight of organically modified mica powder. The organically modified mica powder is obtained by surface modification of muscovite powder with silane coupling agent KH-570, with the amount of KH-570 being 1.5-3.0 wt% of the mass of the muscovite powder. In the preparation process, muscovite powder is first added to an alcoholic aqueous solution of KH-570, stirred, filtered, washed, and dried to obtain organically modified mica powder; then, dried EVOH and organically modified mica powder are premixed and melt-blended and granulated using a twin-screw extruder; finally, the composite granules are blown into a film. This invention utilizes the high aspect ratio and hydrophobic surface of organically modified mica powder to form a tortuous path effect in the EVOH matrix, significantly reducing oxygen and water vapor permeability. It exhibits good thermal stability, simple process, and is suitable for barrier packaging of lipid-based foods.
Owner:HEFEI UNIV OF TECH

A high-temperature resistant and electrolyte-resistant insulating powder coating and its preparation method

This invention discloses a high-temperature resistant and electrolyte-resistant insulating powder coating and its preparation method, belonging to the field of powder coating technology. The high-temperature resistant and electrolyte-resistant insulating powder coating prepared by this invention comprises, by weight, 304-308 parts epoxy resin, 76-80 parts organosilicon epoxy resin, 100-102 parts curing agent, 0.7-1 parts accelerator, 2-5 parts leveling agent, 2-3 parts defoamer, 0.8-1 parts benzoin, and 10-20 parts composite filler. The organosilicon epoxy resin is obtained by reacting polymethylhydrosiloxane, unsaturated hindered amine, 2-(allyloxy)naphthalene, and unsaturated epoxy monomers. The composite filler is obtained by compounding hexagonal boron nitride with aluminum nitride modified by a silane coupling agent. The high-temperature resistant and electrolyte-resistant insulating powder coating prepared by this invention exhibits good high-temperature resistance, electrolyte resistance, thermal conductivity, and mechanical properties.
Owner:GUANGDONG HUACAI POWDER TECH CO LTD

Highly oxygen-barrier plastic bottle and method for producing the same

PendingCN122356621AImprove barrier propertiesHas antioxidant capacityBlow moldingPolymer science
This invention relates to the field of plastics technology, specifically to a high-oxygen-barrier plastic bottle and its preparation method. The invention involves uniformly mixing polyethylene, ethylene-vinyl alcohol copolymer, nylon oligomer, compatibilizer, and high-performance barrier material to obtain a mixture; the mixture is then melt-extruded and injection-molded to obtain a preform; the preform is then placed in a blow molding die, inflated, and cooled to obtain the finished plastic bottle. This finished plastic bottle possesses excellent barrier properties, antioxidant properties, and antibacterial properties, thus having broad application prospects in the field of plastics technology.
Owner:ZHE JIANG SHEN XIN AI SI KAI BAO ZHUANG YOU XIAN GONG SI

A type of waterproofing and reinforcement structure for houses

This utility model provides a waterproof reinforcement structure for houses, belonging to the field of building construction, to solve the problems of multiple leakage risks and high construction difficulty in traditional waterproof reinforcement. It includes a base reinforcement board; an "S"-shaped upper water-blocking connecting strip is fixedly connected to the rear top of the base reinforcement board, an "S"-shaped lower water-blocking connecting strip is fixedly connected to the rear bottom of the base reinforcement board, a left drainage connecting strip is fixedly installed on the rear left side wall of the base reinforcement board, and a right drainage connecting strip is fixedly installed on the front right side wall of the base reinforcement board. Both the right and left drainage connecting strips are arc-shaped, with adjacent right drainage connecting strips on the left and right sides of the base reinforcement board pressing against the front left side of the left drainage connecting strip. In this waterproof reinforcement structure, adjacent base reinforcement boards are interlocked through the "S"-shaped upper and lower water-blocking connecting strips, creating a stepped waterproof barrier that greatly extends the water penetration path and effectively prevents leakage. The concave-convex fit and arc design of the left and right drainage connecting strips form a guide channel to guide water flow.
Owner:NINGXIA WEIHUA XINXING CONSTR CO LTD