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121 results about "Rheology" patented technology

Rheology (/riːˈɒlədʒi/; from Greek ῥέω rhéō, "flow" and -λoγία, -logia, "study of") is the study of the flow of matter, primarily in a liquid state, but also as "soft solids" or solids under conditions in which they respond with plastic flow rather than deforming elastically in response to an applied force. Rheology is the science of deformation and flow within a material. It is a branch of physics which deals with the deformation and flow of materials, both solids and liquids.

Injection molding magnetic powder orientation optimization method and system based on rheological-magnetic field coupling

The invention relates to the technical field of magnetic material injection molding, and discloses an injection molding magnetic powder orientation optimization method and system based on rheology-magnetic field coupling. The method comprises the following steps: deploying a distributed sensing network at key positions of a mold runner and a mold cavity, and synchronously capturing dynamic viscosity change gradient and magnetic field intensity space distribution of a melt in real time in a filling process. The captured data are input into a multi-physics field coupling simulation engine based on micromechanics, an instantaneous orientation vector field of the magnetic powder in the cavity is obtained through calculation, then an orientation order degree topological graph is constructed through tensor analysis and an image algorithm, and a weak orientation area and the boundary of the weak orientation area are accurately recognized. And finally generating a composite regulation and control instruction of the magnetic field and the injection parameters according to an identification result. According to the method, online diagnosis and active compensation regulation and control of the orientation state of the magnetic powder can be realized, and the orientation uniformity and consistency of the injection molding magnet are improved.
Owner:JIANGMEN MAXWELL MAGNET IND CO LTD

Visual inspection and evaluation method and system for sealing quality of liquid crystal screen

The invention discloses a visual inspection and evaluation method and system for the sealing quality of a liquid crystal display, and the method comprises the steps: generating a multi-dimensional space-time state map of a sealing region based on the time sequence multi-mode image data of a sealing technology after the time sequence multi-mode image data of the sealing technology is obtained; performing time sequence dynamic feature analysis on the multi-dimensional space-time state atlas, and extracting behavior pattern features of the sealing glue curing process; inputting the behavior mode characteristics of the sealing glue curing process into the colloid rheology-thermocuring coupling inversion model, and outputting a process parameter deviation interval and a material state distribution diagram; establishing a dynamic statistical reference behavior pattern library; and finally, carrying out matching and deviation degree calculation on the current behavior mode characteristics based on a dynamic statistical reference behavior mode library, and outputting a sealing compound quality comprehensive evaluation report and a process tuning guidance suggestion in combination with a process parameter deviation interval and a material state distribution diagram. According to the invention, deep dynamic diagnosis and root process optimization of the sealing glue curing process are realized, and the accuracy and initiative of quality control are improved.
Owner:XIAMEN FUQI AUTOMATION EQUIP CO LTD

Steel member surface coating thickness control system based on machine vision

The invention belongs to the technical field of industrial coating engineering and automatic control, and relates to a steel member surface coating thickness control system based on machine vision, which is characterized in that electromagnetic characteristics of a liquid coating are sensed in real time through a dielectric parameter detection module; the rheological and dynamic behaviors of the coating are analyzed by utilizing a microdynamics measurement module and combining impact force sensing and structured light imaging; a direct measurement result of the machine vision module on the three-dimensional morphology of the coating is fused, and the information and the pose data of the spray gun are synchronously packaged into a physical state vector by means of a multi-source data fusion module; matching an optimal strategy through a collaborative decision control module, and generating a control instruction; and finally, a controlled fluid resonance perturbation field is formed in the jet flow, so that in-situ and self-adaptive regulation and control of the coating deposition process are realized. The method solves the problems that a traditional spraying process lacks real-time, quantitative and self-adaptive control capability on the coating deposition process and guarantees the coating thickness uniformity and the process stability.
Owner:LONGYAN UNIV

Filling joint glue material with no sagging and preparation method thereof

This invention relates to the field of joint sealant materials, specifically to a non-sagging joint sealant material for facades and its preparation method. The non-sagging joint sealant material comprises component A, containing polyether polyol, and component B, containing isocyanate, with a mass ratio of component A to component B of 1.5:1. Component A includes the following components: polyether polyol A, polyether polyol B, filler, chain extender A, chain extender B, light stabilizer, antioxidant, catalyst, reinforcing agent, defoamer, rheology modifier A, rheology modifier B, and dispersant. Component B includes the following components by weight percentage: polyether polyol A, liquefied MDI, defoamer, rheology modifier A, and rheology modifier B. This invention uses fumed silica as a reinforcing agent, which increases both strength and thixotropy of the material, effectively preventing sagging.
Owner:SHANDONG CENTURY UNION NEW MATERIALS TECH CO LTD

A method and system for material formulation optimization based on rheological data and machine learning

The application discloses a material formula optimization method and system based on rheological data and machine learning. The application takes rheological characteristics as the input of a machine learning model to optimize material parameters, formula variables and process parameters of a polymer. The method of the application does not directly statistically correlate a physical response with material variables, but embeds an intermediate layer based on basic polymer physics principles and rheological theories for connecting the bottom layer and the top layer of structure variables and responses, and realizes integration and prediction modeling of the three layers based on a rheological data set.
Owner:NINGBO INST OF MATERIALS TECH & ENG CHINESE ACAD OF SCI

Preparation method and system of three-phase slurry of carbon dioxide mineralization and waste grading

PendingCN122377339ASlurryProcess engineering
This invention discloses a method for preparing a three-phase slurry using carbon dioxide mineralization and solid waste grading, comprising: pretreatment and precise supply of coal-based solid waste raw materials; intelligent prediction of grading and batching; preparation of primary slurry; preparation of secondary slurry; pressurized CO2 three-phase mineralization reaction; and depressurization, stabilization, and storage of the mineralized slurry. The three-phase slurry preparation system using carbon dioxide mineralization and solid waste grading includes a raw material storage and supply unit, a primary slurry preparation unit, a secondary slurry preparation unit, and a CO2 mineralization reaction unit connected in sequence. The method and system for preparing a three-phase slurry using carbon dioxide mineralization and solid waste grading employs multi-solid waste grading, using a combination of coarse and fine particles in slurry preparation and coal slime as a rheology modifier to regulate the shear-thickening and swelling plasticity characteristics of pure coal gangue slurry into a shear-thinning pseudoplastic three-phase slurry, significantly increasing slurry density and reducing viscosity and transportation energy consumption.
Owner:中煤能源研究院有限责任公司 +1

A chili sauce processing multi-device linkage program control system and method

The present application relates to food processing control technical field, disclose a kind of chili sauce processing multi-equipment linkage program control system and method, system includes: main control module, crushing module, boiling module, auxiliary material module and filling module.Estimating unit extracts stirring electrical parameter and calculates equivalent rheological resistance gradient, combined with heating parameter to calculate compensation type effective evaporation enthalpy change index.Scheduling unit compensates crushing frequency according to the slope of resistance gradient in the early stage of boiling;Relaxation time is extracted using step pulse response to modify enthalpy change index in the moisture evaporation stage;Resistance gradient and enthalpy change index are two-dimensionally mapped to trigger auxiliary material handover, and heating opening is limited using mechanical heat equivalent;Before discharging, build cooling observation window to obtain heat-sensitive coupling coefficient, and accordingly grade adjust pipeline heat tracing and filling servo parameters.The present application converts electrical and thermal parameters into material rheology and enthalpy state, realizes cross-process adaptive collaboration of whole processing flow, and improves product consistency.
Owner:HUNAN LA WANG FOOD CO LTD

Stone-like paint taking lithium magnesium silicate and guar gum as main bodies and introducing graphene family lamellar material as well as preparation method and application of stone-like paint

The invention discloses stone-like paint taking lithium magnesium silicate and guar gum as main bodies and introducing a graphene family lamellar material as well as a preparation method and application of the stone-like paint, and belongs to the technical field of building coatings. The graphene family lamellar material exists at a low doping amount of 0.02-0.15% (based on a whole formula, solid content), preferably, the graphene family lamellar material is pre-compounded with magnesium lithium silicate according to a mass ratio of 10: 1-50: 1 to form a Lp-G (O) hybrid, and an S3 pre-dispersion dropwise adding step is newly added in the process of S1-S6, and a window with the pH value of 8.0-9.0 and the construction viscosity of 90-110 KU is matched, so that lamellar layers are subjected to in-plane orientation, and a'labyrinth path 'barrier is formed; according to the formula, styrene-acrylic emulsion is continuously adopted to form a film, and stone-like textures are constructed by graded quartz sand (40-80 meshes: 80-120 meshes: 120-180 meshes = 2: 3: 5). Compared with a contrast formula which does not contain a layer material, the water resistance / alkali resistance, artificial aging resistance, adhesive force and appearance retention are remarkably improved, meanwhile, construction rheology and stone-like appearance are kept, and the stone-like coating is suitable for interior and exterior wall decoration.
Owner:XINXIANG YUHE GRAPHENE TECH CO LTD

Physical simulation method for forming process of lunar lava tube structure

ActiveCN121905390ADesign optimisation/simulationConstraint-based CADRayleigh numberBasaltic lava
The invention relates to the technical field of physical similar simulation, and particularly provides a physical simulation method for a lunar lava tube structure forming process, which comprises the following steps of: mixing a thermoplastic material and a condensation additive to prepare a simulation melt meeting a basalt lava rheology and thermodynamics similarity criterion; the low gravity effect, the high vacuum environment and the radiation cooling condition in the lunar environment are reproduced through an inclined flow channel and a thermal vacuum cavity, and the injection rate, the flow channel inclination angle and the target environment temperature of the simulated melt are determined by accurately matching dimensionless parameters such as the Peclet number, the dimension temperature and the Rayleigh number; under the condition, controlled flow and surface solidification crusting of the melt are simulated, and finally a cavity structure model is formed, so that physical research on the lunar lava tube structure forming process is realized. According to the method, the lava flow dynamic crusting and cavity forming process in the extreme lunar environment can be accurately reproduced, and a quantitative experimental data basis is provided for formation mechanism research and engineering application of the lunar lava tube.
Owner:JILIN UNIVERSITY

A physical simulation method for the formation process of lunar lava tube structures

ActiveCN121905390BPromote heterogeneous nucleationAccelerate crusting rateDesign optimisation/simulationConstraint-based CADRayleigh numberBasaltic lava
This invention relates to the field of physical similarity simulation technology, specifically providing a physical simulation method for the formation process of lunar lava tube structures. The method involves preparing a simulated melt that meets the rheological and thermodynamic similarity criteria of basaltic lava by mixing thermoplastic materials with condensation additives. The low-gravity effect, high-vacuum environment, and radiative cooling conditions under lunar conditions are reproduced using inclined flow channels and thermal vacuum cavities. By precisely matching dimensionless parameters such as Peckley number, dimensional temperature, and Rayleigh number, the injection rate, flow channel inclination angle, and target ambient temperature of the simulated melt are determined. Under these conditions, controlled melt flow and surface solidification crust formation are simulated, ultimately forming a cavity structure model. This allows for the physical study of the formation process of lunar lava tube structures. This invention can accurately reproduce the dynamic crust formation and cavity formation process of lava flow under extreme lunar conditions, providing a quantitative experimental data basis for the study of the formation mechanism of lunar lava tubes and their engineering applications.
Owner:JILIN UNIVERSITY

Blast furnace slag fluidity regulation and control method based on component regulation and thermal parameter control

The invention relates to the technical field of ferrous metallurgy, in particular to a blast furnace slag fluidity regulation and control method based on component adjustment and thermal parameter control, which comprises the following steps: a feature extraction step: extracting raw material component pulse type fluctuation features and hearth thermal state indirect fast variables; a model construction step: fusing the features to construct a furnace slag rheology toughness virtual perception model; a state deduction step: utilizing deep reinforcement learning to generate a future furnace slag rheology toughness index evolution curve; a decision resolving step: identifying thermal-chemical redundant parameters by using dynamic programming in combination with an extreme low fuel ratio boundary; a dynamic regulation and control step: constructing a multi-time scale instruction based on the parameters to carry out coupling regulation on slagging and air supply systems, and carrying out closed-loop feedback; according to the invention, the fluidity maintenance of the slag in the metastable state is realized.
Owner:NINGXIA JIANLONG LONGXIANG IRON & STEEL CO LTD +1

A kind of river channel silt solidification revetment material of spray slope construction and its special equipment and construction method

PendingCN122277211ARevegetationSoil science
This invention provides a river silt solidification slope protection material and its dedicated equipment and construction method using spray-applied slope construction, belonging to the field of river ecological restoration and slope reinforcement technology. The river silt solidification slope protection material comprises the following raw materials in parts by weight: 55-75 parts river silt, 20-30 parts spray-applied composite curing agent, 1-3 parts rheology modifier, 1-4 parts accelerator, and 1-3 parts ecological additive. The construction method is as follows: after the raw materials are mixed evenly, they are sprayed in layers onto the slope using a spray-applied device. After spraying, curing is performed to form a solidified ecological slope protection layer on the slope. This river silt solidification slope protection material enables in-situ resource utilization of river silt and has strong terrain adaptability. It is a low-cost, low-carbon, and environmentally friendly solidification slope protection material. Moreover, the spray-applied slope formation is rapid, has strong terrain adaptability, and a short construction period, forming an ecological slope protection interface that combines structural support and vegetation restoration.
Owner:JIANGSU SANHEJIAN ENVIRONMENTAL PROTECTION TECHNOLOGY RESEARCH INSTITUTE CO LTD +1

Lightweight sprayable textured composition

PendingCN122374398APolymer scienceAerosol spray
This disclosure relates to compositions comprising lightweight particulate fillers, binders, and modified urea rheology modifiers, wherein the compositions do not exhibit retroreflectivity upon curing; an aerosol dispensing system for applying such compositions and a coating thereby deposited are also disclosed.

High-temperature-resistant high-performance PCB character printing ink and preparation method thereof

The invention relates to the technical field of ink preparation, in particular to high-temperature-resistant high-performance PCB character printing ink and a preparation method thereof. The ink comprises a benzoxazine-biphenyl liquid crystal epoxy hybrid prepolymer, an amino-functionalized hexagonal boron nitride nanosheet, a polysiloxane coated ZIF-8 packaged rare earth aluminate heat-resistant pigment, a hyperbranched polyetherimide diluent and a composite wall material microencapsulated dicyandiamide curing agent, the invention relates to a graphene quantum dot modified montmorillonite rheological regulator and a composite stabilizer. The preparation method comprises the following steps: optimized pre-dispersion, self-assembly and phase separation, stepped curing and post-treatment. Through the synergistic effect of all the components and unique process control, the high temperature resistance, adhesive force and yellowing resistance of the ink are remarkably improved, a cured film layer of the ink can tolerate the high temperature of 300 DEG C for a long time, and the ink has excellent printability and line width precision and is suitable for character identification of a high-reliability PCB.
Owner:HUIZHOU SANHESHENG TECH CO LTD

Preparation method of self-adhesive paper

The invention discloses a preparation method of self-adhesive paper, which comprises the following steps: treating the surface of raw paper by atmospheric pressure plasma to enable the surface of the raw paper to be improved to a level enough to form chemical bonding with a lamination material, so as to obtain target raw paper; on the basis of an electrostatic spinning process, a lamination material containing a nano modifier is deposited on the surface of target body paper, and electrostatic spinning process parameters are controlled to enable the lamination material to form a lamination layer with specific morphological characteristics in the film forming process; coating an adhesive composition containing a photosensitive component and a thermosensitive component on the surface of the lamination layer, and curing to form an adhesive layer; and coating the surface of the adhesive layer with an ultraviolet curing organic silicon composition containing the rheological regulation and control nano filler, and curing to form a release layer to obtain the self-adhesive paper. The peeling strength and ultra-light stable release force between the body paper and the lamination layer are improved, and the problem of glue overflow is effectively avoided while high initial adhesion is realized.
Owner:GUANGDONG QIRUI NEW MATERIAL TECHNOLOGY CO LTD

Grouting coupling simulation method and system based on diffusion model and time-varying rheology

The invention discloses a grouting coupling simulation method and system based on a diffusion model and time-varying rheology, and relates to the technical field of geotechnical engineering grouting numerical simulation. Current geological data are input into the diffusion model to generate grouting initial parameters; automatically identifying and dividing a plurality of solidification stages of the slurry based on the multi-source sensing data; based on a stage division result, performing dynamic inversion and analysis on parameters in the time-varying rheological constitutive equation of the slurry to obtain time-varying rheological parameters, and coupling the time-varying rheological parameters to a constitutive relation of a multi-physics field coupling control equation set in real time; and when the slurry density of a certain area in the computational domain is lower than a critical density threshold value, activating the fluid model for solving, when the slurry density reaches or exceeds the critical density threshold value, switching the area to a solid mechanical model for solving, and dynamically optimizing grouting parameters based on a reinforcement learning algorithm. Simulation parameters and a calculation model are dynamically adjusted through an AI system, and continuous and accurate simulation of the whole process of slurry from liquid pouring to solid phase change is achieved.
Owner:SHANDONG UNIV OF SCI & TECH

Method and equipment for manufacturing concrete-red mud composite component

The invention provides a manufacturing method and equipment of a concrete-red mud composite component, and relates to the technical field of concrete construction and manufacturing, and the method comprises the following steps: placing an inner mold and an outer mold in a vibration module, pouring common concrete in a gap between the inner mold and the outer mold, and pouring red mud concrete in the inner mold. Before solidification, real-time state data of fluidity, compactness, temperature and the like of the two kinds of concrete are collected, and a rheological model is constructed based on the real-time state data and physical data. And analyzing real-time state data, and adjusting the frequency and strength of the vibration module and the rising speed of the internal mold. Before preliminary solidification, the inner mold ascends at a preset speed during vibration, and data are continuously collected to optimize parameters. And after the inner mold completely ascends, the vibration module stops, the double-layer mold stands to form the concrete, and the composite component is obtained. According to the method, data of the two materials are collected in real time, parameters and speed are dynamically adjusted in combination with the model, dynamic collaborative forming is achieved, shearing and compacting are optimized, interface cementation and structure homogenization are promoted, and performance is improved. Compared with a traditional process, the cracking risk is reduced.
Owner:SHANXI AGRI UNIV

Ceramic aluminum alloy melt solid-phase rheological process

The invention discloses a ceramic aluminum alloy melt solid-phase rheology process, and relates to the technical field of melt solid-phase rheology. Comprising the following steps that a ceramic aluminum alloy raw material is melted at the temperature of 700-850 DEG C, electromagnetic induction heating (50-100 kHz) is utilized, the temperature fluctuation is controlled within + / -5 DEG C, and smelting is conducted for 30-60 minutes; 5%-20% of ceramic particles with the particle size being 10-100 microns are added, and stirring is conducted at the temperature of 800-900 DEG C (300-600 r / min, pulse type adding, 1-5 Hz); cooling to 550-650 DEG C at a speed of 10-30 DEG C / min, applying a pressure of 50-150 MPa, maintaining the pressure for 10-30 minutes, and using a gradient mold; casting is conducted at the temperature of 600-700 DEG C, and ultrasonic vibration assistance is conducted (2-5 kW, 20-40 kHz). According to the process, the problems of ceramic particle dispersion and interface bonding can be solved, the material performance is improved, the structure is refined, the tensile strength, the yield strength and the ductility are improved, the production efficiency and cost are optimized, and the stability is enhanced.
Owner:ANQING NORMAL UNIV

A method and system for controlling the curing process of conductive light-shielding FPC special adhesive

The application discloses a conductive light-shielding FPC special adhesive curing process control method and system, relates to the circuit board manufacturing technical field, and the method comprises the following steps: obtaining the target rheological property information and target reactivity information of the glue in the glue dispensing equipment; obtaining the target substrate thermal state information and the environmental parameter information at the entrance of the curing oven; obtaining the curing progress information and temperature distribution information inside the glue layer; generating a target parameter adjustment instruction, which comprises a glue dispensing parameter adjustment instruction and a curing parameter adjustment instruction; adjusting the glue dispensing equipment parameters according to the glue dispensing parameter adjustment instruction to control the coating state of the glue, and adjusting the curing oven parameters according to the curing parameter adjustment instruction to control the curing progress of the glue layer. The application can generate different parameter adjustment instructions to adjust the glue dispensing equipment parameters and the curing oven parameters, so as to realize the curing process control, improve the accuracy and product quality.
Owner:SHENZHEN PUMA OPTOELECTRONIC MATERIALS CO LTD

Film production line surface temperature homogenization temperature control system

The invention relates to the technical field of high polymer material processing and industrial automation control, in particular to a film production line surface temperature homogenization temperature control system, which comprises a data acquisition module used for acquiring real-time state data in a film production process; the parameter inversion module is used for performing inversion to obtain thermophysical parameters representing the characteristics of the thin film material and comprehensive convective heat transfer coefficient parameters representing environmental interference; the entropy monitoring module is used for calculating a thermal coupling entropy index; the game control module is used for constructing a state space model and solving and generating a multi-temperature-zone heating power control instruction; the closed-loop correction module is used for calculating a correction increment to update an actuator health factor and feeding back the updated actuator health factor to the entropy monitoring module; the problem that a traditional fixed parameter model cannot adapt to raw material rheology and mismatch caused by environmental interference is solved, and the temperature prediction and control precision under high-speed transmission and complex working conditions is remarkably improved.
Owner:FUZHOU INSTITUE OF TECH +1

Device and method for testing rheology of powder at high temperature

The invention relates to the technical field of powder rheology testing equipment, in particular to a device and method for testing powder rheology at high temperature, the device comprises a base, a measuring mechanism, a stirring mechanism and a water cooling system, the measuring mechanism comprises an outer shell, a gravity sensor and a detection measuring cylinder, the gravity sensor is arranged in the outer shell, and the stirring mechanism is arranged in the detection measuring cylinder; the detection measuring cylinder is located at the top of the outer shell, and an eddy current heating assembly is arranged on the outer side of the detection measuring cylinder; the stirring mechanism comprises a lead screw nut assembly, an L-shaped plate and a rotating assembly, the lead screw nut assembly is in transmission connection with the L-shaped plate, and a driving assembly used for driving the rotating assembly to rotate is arranged on the inner side of the L-shaped plate; the water cooling system comprises an upper water cooling pipe, a lower water cooling pipe and a heat dissipation assembly, the upper water cooling pipe is arranged around the torque sensor, and the lower water cooling pipe is arranged around the gravity sensor. The powder is heated by adopting an eddy current heating method, a high-temperature environment is created for a powder rheology test, and the powder rheology test at a high temperature can be realized.
Owner:HENAN UNIVERSITY OF TECHNOLOGY

Rapid color master batch dispersibility detection method based on rheology principle

The invention discloses a color master batch dispersibility detection method based on a rheology principle. The method comprises the following steps: S1, preparing a polymer melt test sample containing a color master batch to be detected and a standard sample with good dispersibility; s2, using a capillary rheometer to obtain the total pressure drop when the sample flows through the capillary; s3, determining inlet pressure drop of the to-be-detected sample and the standard sample; s4, on the basis of the difference between the inlet pressure drop of the to-be-tested sample and the inlet pressure drop of the standard sample, calculating a dispersity index for quantitatively evaluating the dispersion degree of the to-be-tested color master batch. According to the invention, the color master batch dispersibility is improved from qualitative description to quantitative evaluation, and the reproducibility, comparability and high sensitivity of the detection method are ensured.
Owner:POLY PLASTIC MASTERBATCH SUZHOU

A high load backing bearing with a multi-layer composite wall thickness outer race

This invention discloses a high-load-bearing backing bearing with a multi-layered composite wall thickness outer ring. The bearing's dynamic blocking transition layer is composed of polyhedral rigid microparticles and a viscoplastic matrix, with the microparticle volume fraction limited within a critical blocking threshold range. Under quasi-static radial heavy loads, the microparticles are in a blocked state, forming a rigid force chain that transmits hydrostatic stress. Under high-frequency transverse shear stress wave excitation, the matrix undergoes transient superplastic rheology, and the force chain enters a locally unblocked state, resulting in micro-rheology and a sudden drop in transverse shear stiffness. Based on the orthogonal decoupling of stress states and the dual-state phase transition characteristics, this invention actively disrupts the subsurface standing wave resonance condition, resolving the contradiction between macroscopic compressive strength and microscopic dissipation. This effectively suppresses deep peeling failure under high-speed, heavy-load conditions, and its material selection and process design fully embody the energy-saving and high-efficiency concept of green manufacturing.
Owner:BAOMEITE (SHANGHAI) INTELLIGENT ENG CO LTD

A high-strength and anti-swelling polyvinyl alcohol hydrogel material and a 3D printing preparation method thereof

This invention belongs to the technical field of polymer hydrogel materials, and discloses a high-strength and swelling-resistant polyvinyl alcohol (PVA) hydrogel material and its 3D printing preparation method. The high-strength and swelling-resistant PVA hydrogel material includes a matrix material, a rheology enhancer, and a solvent. The 3D printing preparation method of the high-strength and swelling-resistant PVA hydrogel material includes the following steps: 3D printing ink preparation; 3D printing molding; strong alkali-induced chain activation and initial microcrystal formation; immersion in salting-out solution and solvent displacement agent to induce densification and crystallization enhancement. This invention, through the dual technical coupling of synergistic optimization of the formulation-printing process and alkali treatment-induced dense crystallization, overcomes the technical bottleneck of traditional PVA-based materials' difficulty in simultaneously achieving printability, mechanical strength, and swelling resistance, ultimately preparing a composite printing material with excellent 3D printing processing performance, high mechanical strength, and good water resistance and swelling resistance.
Owner:DALIAN POLYTECHNIC UNIVERSITY

Innovative manufacturing process of waterproof wear-resistant oxford fabric

The invention relates to the technical field of Oxford fabric processing, and discloses an innovative manufacturing process of a waterproof wear-resistant Oxford fabric, which comprises the following steps: S1, performing plasma surface activation treatment on an Oxford fabric base fabric, and then applying a pretreatment liquid containing a latent exothermic initiator so as to construct an active interface layer on the surface of the Oxford fabric base fabric; s2, then preparing temperature-sensitive intelligent gradient slurry, wherein the temperature-sensitive intelligent gradient slurry comprises a waterborne polyurethane matrix, hydrophobic modified hollow microspheres and a temperature-sensitive rheology modifier; and S3, coating the surface of the active interface layer with the temperature-sensitive intelligent gradient slurry. The interface micro exothermic reaction is matched with the temperature-sensitive rheological property of the slurry, upward heat convection and buoyancy are generated, the hard hollow ceramic microbeads are driven to directionally migrate to the surface of the coating and are enriched, a high-hardness surface armor layer is formed, and the scratch resistance and wear resistance of the fabric are remarkably improved.
Owner:WUJIANG XUXIANG TEXTILE S&TCO LTD

Thick-film self-laminating water-based epoxy graphene heavy-duty anticorrosive coating and preparation method thereof

PendingCN122356941AEpoxyPolymer science
This invention discloses a thick-film, self-layering waterborne epoxy graphene heavy-duty anti-corrosion coating. The coating uses waterborne epoxy emulsion and waterborne fluorocarbon resin as the main film-forming materials, combined with a composite dispersion slurry of graphene oxide and nano-zinc oxide, and employs a special polyurea-modified wax as a rheology modifier. Utilizing the low surface energy of the waterborne fluorocarbon resin, the coating automatically layers during curing to form a "bottom-protected, top-resistant" structure; simultaneously, the layered structure of graphene and the synergistic effect of nano-zinc oxide construct a dense physical shielding layer. This invention solves the industry problem of easy bubbling in thick-film waterborne epoxy coatings, achieving a single coating with both high salt spray resistance (≥2000h) and UV aging resistance (≥1000h), making it suitable for harsh corrosive environments such as offshore platforms and cross-sea bridges.
Owner:HUNAN JINHAI SCI & TECH

High arch dam deformation state fractional order numerical analysis method and module

ActiveCN119416500BThe hardening effect is obvioussignificant hardening effectHigh archesHydraulic structure
This invention discloses a fractional-order numerical analysis method and module for the deformation behavior of high arch dams, relating to the fields of service behavior analysis and computational mechanics technology for hydraulic structures. By constructing fractional-order characterization methods for decaying rheology, steady-state rheology, and accelerated rheology under three-dimensional stress states, fractional-order rheological mechanical element models of the dam body and foundation of high arch dams are established; using the incremental finite element method, based on t n The stress, viscoelastic strain, viscoplastic strain, and deformation at time t are calculated using the predifference formula. n The stress increment, viscoelastic strain increment, viscoplastic strain increment, and deformation increment within the time period are used to derive t. n+1 By repeatedly calculating the stress, strain, and deformation at specific moments, the stress, strain, and deformation of the high arch dam within the analysis period are obtained. This invention not only objectively characterizes the nonlinear rheological effects of the dam body and foundation of the high arch dam, but also achieves scientific numerical quantitative analysis of deformation behavior, providing technical support for safety monitoring and early warning of potential hazards in in-service high arch dams, and has broad application prospects and market potential.
Owner:NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER +1

A co2-cured industrial solid waste-based slurry for mine filling

PendingCN122355666AAluminiteSlag
This invention relates to the field of mine backfilling applications, specifically to a CO2-solidified industrial solid waste-based slurry for mine backfilling, comprising the following raw materials in parts by weight: 85-105 parts solidifying agent, 15-22 parts sludge, 3-5 parts construction waste particles, 5-10 parts amine-functionalized porous material, 1.2-2.4 parts municipal solid waste particles, 0.5-2.5 parts rheology modifier, 0.1-0.5 parts setting regulator, and 0.1-0.5 parts defoamer; the solidifying agent, by weight percentage, includes 25-35 parts ettringite, 2-12 parts yellow phosphorus slag, 3-8 parts phosphogypsum, 4-16 parts modified fly ash, 3-10 parts desulfurized gypsum, 2-5 parts steel slag, and 3-5 parts tailings. By optimizing the solid waste combination and activation process, the slurry can actively adsorb / mineralize CO2 during the backfilling and solidification process, achieving the dual goals of increasing the strength of the backfill and reducing carbon emissions.
Owner:贵州绿色产业技术研究院