68 results about "Fiber morphology" patented technology

The invention provides an intelligent evaluation method for mechanical properties of a carbon fiber composite material, and relates to the technical field of material performance analysis, and the method comprises the following steps: evaluating the performance dispersion of a current batch of samples according to a fiber agglomeration area proportion and a carbon fiber monofilament diameter, and comparing the performance dispersion with a preset dispersion threshold, identifying a non-manufacturability discrete risk level; determining the tensile strength value of each sample through a tensile test, performing statistics to obtain a strength mean value and a strength standard deviation, performing matching analysis on the performance dispersion, the strength mean value and the strength standard deviation, and extracting the fiber reinforcement efficiency; performing weighted fusion processing on the fiber reinforcement efficiency and the fiber agglomeration area proportion to obtain a current batch fiber form comprehensive index, comparing the current batch fiber form comprehensive index with a historical batch, and identifying a fiber form change amplitude; and evaluating the quality consistency degree among the batches according to the strength deviation value and the dispersion difference among the batches, and identifying the non-manufacturability discrete source.

The invention discloses a glass fiber reinforced plastic wiredrawing plate and a processing method thereof, the glass fiber reinforced plastic wiredrawing plate comprises a glass fiber reinforced plastic plate matrix, the glass fiber reinforced plastic plate matrix comprises a fiber reinforced matrix layer and a gel coat layer on at least one surface of the fiber reinforced matrix layer; at least one surface of the glass fiber reinforced plastic plate substrate is provided with a wire drawing structure; the fiber-reinforced matrix layer is formed by infiltrating fibers in matrix layer resin, and the fibers in the fiber-reinforced matrix layer are fiber chopped yarns; and any one or combination of fiber continuous yarns, fiber surface felts, fiber felts, fiber stitch-bonded felts, fiber composite felts, fiber cloth, fiber multi-axis cloth, fiber warp-knitted cloth, fiber composite cloth and fiber woven products. By arranging the wire drawing structure, the surface roughness is improved so as to enhance the bonding force, and the pollution and bonding problems caused by mechanical polishing are avoided; the processing method simplifies the process, reduces the cost, does not need complex corona treatment, provides a good contact surface for bonding of the glass fiber reinforced plastic plate and other materials, and guarantees the bonding effect.

This invention relates to a rare earth aluminate inorganic fiber and its preparation method, wherein the main crystalline phase of the rare earth aluminate is composed of ReAl. 11 O 18 Composed of ReAlO3 (Re = La, Ce, Pr, Nd), the relative content of the two phases is continuously adjustable within the range of 0–100 wt%. The fiber diameter ranges from 0.2 μm to 6.0 μm. The fiber maintains flexibility under high-temperature conditions from room temperature to 1450℃ and maintains microstructure and crystalline phase stability from room temperature to 1650℃. The preparation method uses aluminum sol as the aluminum source, rare earth salts as the rare earth source, and a polymer as a spinning aid. Precursor fibers are obtained by electrospinning or centrifugation, and the precursor fibers are then heat-treated to obtain rare earth aluminate inorganic fibers. This invention features sol stability, good spinnability, simple preparation process, and low cost. The prepared inorganic fibers have a stable and controllable structure, intact morphology, and good flexibility, showing promising applications in thermal insulation, flexible electronics, flue gas dust removal, and battery separators.

The present invention provides a nanofiber membrane having dual scale porosity, which is manufactured by a phase separation electrospinning method. The nanofiber membrane is composed of interfibrous pores and surface pores which are interconnected, thereby enhancing air permeability, diffusion rate and filtration performance. The methods employ solvents having different evaporation rates to induce phase separation during electrospinning, resulting in high porosity structures. The nanofiber membranes are suitable for use in air filtration, medical dressings, drug delivery systems, and diagnostic test paper, thereby improving performance characteristics, such as reducing pressure drop, enhancing diffusion, and increasing diagnostic sensitivity. The method enables cost-effective and scalable production while ensuring consistency of fiber morphology.

The invention discloses a capacitive yarn type pressure sensor which is in a yarn or fiber form and is at least provided with a first capacitor and a second capacitor. The first capacitor comprises two electrode layers and a uniform dielectric layer, the second capacitor comprises two electrode layers and a non-uniform dielectric layer, and the second capacitor is provided with at least two capacitor partitions; the capacitance value of the first capacitor and the pressure form a first monotonic function relationship, and the first monotonic function is irrelevant to the pressure applying position; the capacitance value of the second capacitor and the pressure form a second monotonic function relationship, and the second monotonic function is related to the pressure applying position; the magnitude of the pressure is determined through the capacitance value of the first capacitor, and the position of the pressure is determined through the capacitance value of the second capacitor. A double-capacitor hierarchical design is adopted, the first capacitor adopts a uniform dielectric layer to quantify pressure, and the second capacitor adopts a non-uniform dielectric layer to position a pressure position, so that synchronous quantitative detection of a pressure value and an action position is realized.

The invention relates to the technical field of papermaking, and particularly discloses a control system and method for optimizing the beating degree of flat base paper. The system takes'two-dimensional monitoring and multivariable coordinated regulation 'as a core, realizes parallel monitoring by integrating a beating degree sensor, a fiber form analyzer and the like, performs fusion calculation on detection data, and performs synchronous closed-loop control on the beating concentration, the beating pressure and the beating effective power on the basis, so that the pulping efficiency is improved. And finally, fine regulation and control of the fiber fibrillation process are realized. According to the method provided by the invention, the beating degree can be stably controlled in a target interval from 65 degrees SR to 85 degrees SR, and meanwhile, the following two performances are improved: on one hand, fibers are uniformly distributed, and on the other hand, the electrical insulation strength and the mechanical property uniformity of finished paper are remarkably improved. Therefore, the technical bottleneck that according to an existing papermaking pulping process, high-precision, dynamic and refined regulation and control of the pulp degree parameters are difficult to achieve is solved.

This invention discloses a method for modifying fluff pulp, which can effectively increase the porosity between fibers, thereby improving its liquid conductivity. The preparation method includes the following steps: treating different types of softwood pulp boards with ultrasonic waves and 1,2,3,4-butanetetracarboxylic acid (BTCA) crosslinking. Ultrasonic pulverization effectively reduces the bonding force between fibers, while the polycarboxylic acid crosslinking method gives the fibers a large number of pores, improving fiber bulk and fixing fiber morphology. After this treatment, the fiber morphology shows significant curling, twisting, and indentation, thus affecting its liquid conductivity. The fluff pulp modification method of this invention uses commercial softwood pulp boards as raw materials. Through a simple and easy modification method, it effectively overcomes the shortcomings of domestically produced fluff pulp, such as slow absorption rate, long liquid absorption time, and low bulk, thus improving production efficiency.

This invention relates to the field of polyaryletherketone (PBO) composite materials, specifically to a high thermal conductivity PBO composite material and its preparation method. The composite material includes PBO and PAEK materials, with the PBO material existing in the form of continuous fibers. The method includes the following steps: PAEK powder is attached to the surface of activated PBO continuous fibers by electrostatic adsorption to form pre-coated continuous fibers; one or more bundles of pre-coated continuous fibers are arranged closely in parallel along a single direction, and PAEK powder is spot-welded to the fiber surface or multiple bundles of fibers are fixed in a heating environment below the melting point temperature of PAEK but above its glass transition temperature to obtain a unidirectional prepreg; it is woven with a PBO-based fine-structure material, and the resulting composite fabric is laminated and pressed with a PAEK film and then annealed to obtain the composite material. This invention achieves complete wetting of the PBO thermally conductive fiber interface, with a small amount of fiber added and a continuous thermally conductive network, maximizing thermal conductivity.

The invention relates to the technical field of environment-friendly coatings, in particular to an environment-friendly coating based on a plant material and a preparation method of the environment-friendly coating. The environment-friendly coating comprises the following raw materials in parts by weight: 25-40 parts of a plant composition, 20-30 parts of waterborne epoxy ester resin, 10-20 parts of deionized water, 3-8 parts of radix puerariae residues, 5-10 parts of diatomite, 2-5 parts of bentonite, 1-3 parts of a thickening agent, 0.5-2 parts of a dispersing agent and 0.5-2 parts of a defoaming agent. According to the invention, the rich pore structure of the lotus seedpod charcoal powder and the fiber form of the sisal fibers are interwoven with each other, a stable three-dimensional network is constructed in a paint film, and paint film cracking caused by local stress concentration is avoided; meanwhile, the porous characteristic of the resin is cooperated with inorganic fillers such as diatomite and bentonite, the compactness of a paint film is enhanced, the film-forming property of the resin is optimized by the pomelo peel extract powder, the adhesive force of the paint film and a base material is enhanced, the overall flexibility of the paint is improved, and the service life is prolonged.

The invention provides a positive plate of a solid-state battery. The positive plate comprises a positive electrode foil and a positive electrode active material layer coated on at least one side of the positive electrode foil, the positive electrode active material layer comprises positive electrode active material particles, a binder and a conductive agent; the binder comprises PTFE (Polytetrafluoroethylene); the binder has a fibrous structure in the positive active material layer; the length-diameter ratio of the fibers of the fibrous structure is (80-9000): 1. According to the invention, PTFE is selected as the binder and the fiber morphology of the binder is controlled, especially the length-diameter ratio of the binder is controlled to meet (80-9000): 1, so that the coating and fibration wire drawing of the positive electrode and the electrolyte are uniform, the construction of the conductive network is good, the distribution of the conductive network is more uniform and more comprehensive, the prepared positive electrode has good ionic conductivity, and the service life of the positive electrode is prolonged. A solid-state battery assembled by using the positive electrode shows good electrical performance, the ionic conductivity of a positive plate is improved, and the cycle life of the battery is prolonged.

This invention discloses a magnetic amorphous carbon composite aerogel fiber, its preparation method, and its applications, belonging to the field of electromagnetic functional materials. The aerogel fiber has a continuous fiber morphology, composed of an amorphous carbon three-dimensional network framework and uniformly embedded MOF-derived magnetic nanoparticles. The core of its preparation method involves blending transition metal MOF nanoparticles with aramid nanofiber dossile, wet spinning through a unique "MOF-induced-protonation" synergistic gelation mechanism, followed by high-temperature carbonization, which transforms the MOF into magnetic particles in situ and anchors them within the carbon framework. This method is highly versatile and applicable to various MOFs such as Fe, Co, Ni, and Mn, and is simple and can be continuously produced. The resulting aerogel fiber possesses ultra-low density, high flexibility, and excellent broadband strong absorption performance (effective absorption bandwidth ≥ 7.0 GHz, reflection loss ≤ -50 dB), showing broad application prospects in wearable electronics, aerospace stealth, and 5G communication electromagnetic protection.

The invention relates to a preparation method of a multi-cross-linked hydrophilic copper (II) ion imprinted polymer, which belongs to the field of functional high polymer materials and comprises the following two steps: firstly, carrying out free radical copolymerization on an allyl tertiary amine salt modified salicylaldoxime copper (II) complex, a first tonality monomer, a first cross-linking agent and a water-based initiator in water, neutralizing after reaction, filtering and drying to obtain a second tonality monomer; a cross-linked polymer containing copper ions and tertiary amine groups is obtained; the preparation method comprises the following steps: firstly preparing a quaternary ammonium cation hydrophilic cross-linked polymer, then dissolving the quaternary ammonium cation hydrophilic cross-linked polymer in an organic solvent, reacting with an unsaturated alkylation reagent to generate a polymerizable quaternary ammonium cation hydrophilic cross-linked polymer, then adding a second tonality monomer, a second cross-linking agent and an initiator for secondary copolymerization, and finally preparing an imprinted polymer in a hollow resin ball, porous membrane or fiber form through a precipitation, membrane forming or spinning process. The solid-phase anion and cation dual-extraction agent for copper (II) ion imprinting and counter ions thereof is suitable for high-selectivity enrichment and deep extraction separation of copper (II) ions in various water systems, and has the function and characteristic of simultaneously extracting counter anions.

The invention discloses an intelligent effect evaluation method for a curcumin composite fiber wound dressing, and belongs to the technical field of medical evaluation, and the method specifically comprises the following steps: constructing a multi-parameter coupled dynamic wound simulation environment; placing the dressing sample in an environment to run for a complete period, and synchronously collecting data of fiber morphology, environment pH value, curcumin concentration and viable count; dividing continuous characteristic stages according to environment and flora data changes; extracting geometrical characteristic parameters of the fiber morphology at each stage, and performing time domain alignment and correlation analysis on the geometrical characteristic parameters and corresponding curcumin concentration data to obtain structure-release correlation parameters; on the basis of the parameters and environmental pH value data, calculating a drug release-antibacterial synergistic coefficient of each stage through a staged model; and finally, generating a dynamic evaluation map according to the change relation of the collaborative coefficient between the continuous characteristic stages. According to the invention, accurate quantification and staged evaluation of dressing intelligent response behaviors under the condition of simulating a real wound dynamic complex environment are realized.

The invention relates to the technical field of slow-release fertilizers, and discloses a functional slow-release fertilizer and a preparation method thereof. Modified chitosan is used as a matrix, sepiolite is used as a filler, acrylic acid is used as a monomer, modified chitosan-based composite hydrogel is prepared through a free radical graft copolymerization method under the action of a modified cross-linking agent, and a fertilizer solution is mixed with the modified chitosan-based composite hydrogel to obtain the functional slow-release fertilizer. Nitrogen atoms in pyridyl and triazinyl in the modified cross-linking agent and the modified chitosan contain lone pair electrons and can form coordinate bonds with heavy metal ions, so that the adsorption performance of the hydrogel on heavy metals is improved; by introducing thiourea groups into chitosan, adsorption sites of molecular chains of the hydrogel are increased, and the heavy metal adsorption capacity of the hydrogel is improved; the sepiolite has excellent performance in the aspect of heavy metal adsorption by virtue of the porous characteristic and fiber morphology, and the soil remediation effect is improved by introducing the sepiolite into the hydrogel.

The invention discloses an absorbable hernia patch with biological activity and a preparation method, the absorbable hernia patch comprises a patch, the thickness of the patch is 1mm, a coaxial electrostatic spinning technology is adopted to prepare fibers with a core-shell structure, the fibers are prepared by compounding poly (p-dioxanone) and poly (L-lactic acid), the core-shell structure comprises an outer layer material and an inner layer material, and the inner layer material is a porous material. Naringenin is loaded in the patch; controllable degradation and mechanical support are achieved, poly (p-dioxanone) and poly (L-lactic acid) are adopted as substrate materials, shell-core structure fibers are formed through coaxial electrostatic spinning, tissue repair is promoted through drug functionalization design, naringenin with biological activity is loaded in the patch, the effects of resisting inflammation and promoting angiogenesis and collagen deposition are achieved, and the anti-inflammatory effect is achieved. The patch is complete in fiber morphology, the tensile strength and the elongation at break both reach the level required by abdominal wall repair, the high quality residual rate is kept in the degradation process, and the naringenin can achieve slow release and continuously play a role.

The invention relates to the technical field of papermaking processes, in particular to a production process of living paper. The production process provided by the invention comprises the following steps: taking needle leaf pulp and broad leaf pulp as raw materials, then preparing the pulp according to a certain proportion, then introducing a bulk improver, a wet strength agent and a softening agent, and carrying out molding and squeezing to obtain wet paper; and drying the wet paper, and then wrinkling to obtain the life paper. Wherein in the repulping process, the pulping process is optimized, the fiber form is changed, the damage to the fiber structure is reduced, and the bulkiness of the fiber is improved; a specific additive is adopted for compounding before papermaking, so that the bulk of the paper is greatly improved under the condition of small investment; and a certain wrinkling cutter angle is controlled in the wrinkling process, so that the bulkiness can be improved. Through control in the multiple aspects in the process, the bulk of the paper is effectively improved, and meanwhile, the paper has good strength, water absorption and softness.

The present application relates to a kind of hafnium oxide inorganic fibers and its preparation method, the crystal phase of the described the hafnium oxide inorganic fiber is monoclinic phase, fiber diameter is 0.2 μm~7 μm, and keep fiber form integrity and crystal phase stability at high temperature 1500 ℃.Preparation method is with inorganic hafnium salt as hafnium source, organic ligand is used as hafnium ion stabilizer, by organic amine to remove hafnium salt anion, obtain hafnium oxide precursor, again with high molecular polymer as spinning aid, by electrostatic spinning technology or centrifugal fiber forming technology obtain hafnium oxide precursor fiber, precursor fiber is obtained hafnium oxide inorganic fiber after heat treatment.The present application has the advantages such as simple process, good sol stability and spinnability, high hafnium oxide solid content, low cost, no environmental pollution in heat treatment and the like.The prepared inorganic fiber crystal phase and microstructure are stable, fiber form is complete under high temperature condition, and the present application has application prospect in the fields such as high temperature gas filtration, high temperature heat insulation and the like.

The invention discloses a method for preparing a porous Fe2O3 / FeAl2O4 heterojunction fiber material through electrostatic spinning and application of the porous Fe2O3 / FeAl2O4 heterojunction fiber material, and belongs to the technical field of catalytic material preparation. The preparation method comprises the following steps: preparing a spinning solution A containing polystyrene, ferric nitrate and aluminum nitrate and a spinning solution B containing ferric nitrate; preparing a precursor fiber membrane through a parallel electrostatic spinning technology; and then calcining in air to decompose polystyrene to form pores, converting nitrate into metal oxide, and finally generating the double-helix Fe2O3 / FeAl2O4 heterojunction with the fiber morphology reserved. A heterojunction interface and a fiber network structure are synchronously constructed through a one-step method, the catalytic performance of the material is improved, high activity and high selectivity are shown in the aspect of preparing high-added-value chemicals through plastic catalytic cracking, and a new material is provided for solving white pollution and recycling waste plastic.

This invention belongs to the field of inorganic materials technology, specifically relating to a mesoporous high-entropy rare earth oxide fiber and its preparation method and application. The preparation method includes the following steps: (1) preparing a mixed solution of dimethylacetamide and anhydrous ethanol, and adding PEO- b -PS, stir to obtain micelle solution; (2) add metal salt to PEO- b (3) PVP is added to the above solution, the pH value is adjusted to 2.5-6.5, and the solution is stirred to obtain a spinning solution; (4) the obtained spinning solution is electrospun to obtain composite fibers; (5) the obtained fibers are calcined in segments under an air atmosphere to obtain mesoporous high-entropy rare earth oxide fibers. The mesoporous high-entropy rare earth oxide fibers of the present invention have a uniform mesoporous structure, regular fiber morphology, controllable pore size distribution, and can be rapidly densified at low temperature to obtain ceramics, which significantly improves the mechanical properties of ceramic materials.

This invention relates to the field of electrospun membranes, and more specifically to a one-step photocurable electrospun membrane material and its preparation method. The photocurable electrospun membrane material is prepared by mixing 5-20 parts of fiber-forming macromolecules, 10-40 parts of collagen, 0.05-3 parts of natural photosensitizer, and a solvent to form a spinning solution. Electrospinning is performed using either needle-type or non-needle-type methods. Simultaneously, the fibers are irradiated with 200-400 nm ultraviolet light in situ to achieve photocuring and cross-linking, thus obtaining a micro / nanofiber membrane in one step. The fiber-forming macromolecules are selected from biodegradable medical polymers, and the photosensitizers are biosafe components such as riboflavin and retinaldehyde. This invention completely solves the problems of uneven cross-linking, fiber morphology damage, collagen denaturation, and internal light filtering effects in traditional two-step methods. The resulting membrane has regular fiber morphology, uniform cross-linking, high mechanical strength, good water resistance, and complete retention of bioactivity. Furthermore, the process is simplified, complies with pharmaceutical quality management standards, and is suitable for medical applications such as tissue engineering and wound repair.

The invention discloses a method for regulating and controlling moisture absorption and desorption characteristics and softness of reconstituted tobacco through cationic guar gum, which is based on a paper-making method reconstituted tobacco production process and comprises the following steps of: mixing the cationic guar gum with tobacco stem / tobacco powder mixed pulp in a pulping stage; or cationic guar gum is added in a spraying mode after a reconstituted tobacco substrate is formed and dip-coated with tobacco coating liquid, the pulp fiber form can be actively optimized by regulating and controlling the concentration and the adding proportion of a cationic guar gum solution, the pulp retention rate is increased, and meanwhile the moisture absorption and desorption characteristics of reconstituted tobacco and the paper base softness are precisely regulated and controlled. An existing production line does not need to be transformed, operation is easy and convenient, the method is suitable for industrial production, on the premise that the quality stability of the reconstituted tobacco is guaranteed, smoke irritation can be effectively reduced, the oral cavity moist feeling is enhanced, and the physical performance and sensory quality of the reconstituted tobacco are cooperatively improved.

The invention discloses a method for regulating and controlling moisture absorption and desorption characteristics of a reconstituted tobacco substrate through flexible pulping, and reconstituted tobacco with high quality and stability is obtained by adjusting a pulping mode of tobacco stems and tobacco powder and production parameters such as pulping machine power, pulp flow, pulp concentration, pulp outlet and reflux ratio of pulp and the like in a pulping process section. According to the flexible pulping process, on the premise that actual production is not affected, the operation mode is convenient to regulate and control, the pulp retention rate is increased, and the pulp fiber morphological characteristics are actively controlled. Meanwhile, due to the improvement of the moisture absorption and desorption characteristics of the paper base, the paper breaking frequency of the reconstituted tobacco base sheet is reduced, and the production stability is greatly improved.

The invention discloses a method for regulating and controlling moisture absorption and desorption characteristics and softness of reconstituted tobacco through glycerin, which comprises the following steps: based on a paper-making method reconstituted tobacco production process, mixing glycerin with tobacco stem / tobacco powder mixed slurry in a pulping stage, or adding glycerin in a spraying manner after forming a reconstituted tobacco substrate and dip-coating tobacco coating liquid; by regulating and controlling the concentration and the adding proportion of the glycerin solution, the pulp fiber form can be actively optimized, the pulp retention rate is increased, and meanwhile the moisture absorption and desorption characteristics and the paper base softness of the reconstituted tobacco are precisely regulated and controlled. An existing production line does not need to be transformed, operation is easy and convenient, the method is suitable for industrial production, on the premise that the quality stability of the reconstituted tobacco is guaranteed, smoke irritation can be effectively reduced, the oral cavity moist feeling is enhanced, and the physical performance and sensory quality of the reconstituted tobacco are cooperatively improved.

The present invention provides a nanofiber membrane with dual-scale porosity, fabricated through a phase-separation electrospinning process. The membrane consists of interconnected inter-fiber and surface pores, enhancing air permeability, diffusion rates, and filtration performance. The method employs solvents with distinct evaporation rates to induce phase separation during electrospinning, resulting in a highly porous structure. The nanofiber membrane is applicable in air filtration, medical dressings, drug delivery systems, and diagnostic test strips, offering improved performance characteristics such as reduced pressure drop, enhanced diffusion, and increased sensitivity in diagnostics. The process enables scalable, cost-effective production with consistent fiber morphology.

The invention belongs to the technical field of preparation of non-woven fabrics, and discloses a polyethylene fiber non-woven fabric as well as a preparation method and application thereof. The polyethylene fiber non-woven fabric is prepared from a gel spinning solution through differential electrostatic spinning; the gel spinning solution contains polyethylene, white oil and gallic acid and is prepared under the action of supercritical carbon dioxide. The preparation method comprises the following steps: 1) mixing polyethylene, white oil and gallic acid, introducing supercritical carbon dioxide to form a gel spinning solution, and cooling to obtain a colloid; 2) processing the obtained colloid on a screw type differential electrostatic spinning device to obtain a non-woven fabric; (3) carrying out cold pressing and stretching on the obtained non-woven fabric, then shaping, carrying out ultrasonic extraction, drying and removing an extracting agent; and 4) stretching and hot-pressing the non-woven fabric obtained in the step 3) again to obtain the polyethylene fiber non-woven fabric. The prepared non-woven fabric is smooth in surface, free of defects such as obvious holes and adjustable in fiber morphology.

The invention discloses a preparation method of a molybdenum disulfide nanofiber material for enhancing electro-catalytic hydrogen evolution performance. Molybdenum disulfide nanofibers are conveniently prepared by adopting an electrostatic spinning method matched with a heat treatment process, and molybdenum disulfide crystals are effectively packaged by a polymer matrix, so that the stability of a molybdenum disulfide catalyst can be improved. The molybdenum disulfide nanofiber has a conductive network, a large specific surface area and a stable structure due to fiber morphology, and has good catalytic activity in both an acid environment and an alkaline environment. The overpotential under the acidic condition is 202 mV, the Tafel slope is 93 mV.dec-1, the overpotential under the alkaline condition is 180 mV, and the Tafel slope is 83 mV.dec-1. In addition, the stability of the MoS2 nanofibers continuously working for 20 hours under acidic and alkaline conditions is superior to that of the Pt / C continuously working for 10 hours under the same condition, so that the actual application of the MoS2 nanofibers in the industry in the future is facilitated.

The invention discloses a wave flat DTY (draw textured yarn) fiber and an elasticizing processing method thereof, which successfully solves the technical problems of deformation, scratching, broken filaments and the like which are easy to generate in the production of special-shaped cross-section fibers by adopting linear wave flat cross-section POY (pre-oriented yarn) as a raw material and combining a low-damage processing technology. Wherein due to the extremely high surface smoothness of the rotary yarn guide made of the nanometer aluminum oxide ceramic material, the friction damage in the fiber feeding process is remarkably reduced, and the fiber form integrity is effectively protected; the double-side symmetrical vortex air supply cooling system achieves uniform and stable cooling of the filaments, and it is ensured that the section structure and the curling form of the filaments are efficiently fixed. The finally prepared DTY fiber not only is high in section retention rate and excellent in mechanical property, but also gives full play to the specific capillary effect and soft gloss of the wave flat structure, and endows terminal fabrics with excellent moisture-conducting and quick-drying properties and high-end texture.

This invention provides a method for preparing magnetic fibers and their fabrics. The method involves dissolving magnetic particles in a 20-25 wt% polyurethane mother liquor to form a 75-90 wt% magnetic particle dispersion. Then, rush fibers are immersed in the magnetic particle dispersion and subjected to vacuum curing to obtain magnetic fibers. These fibers are then woven with ordinary yarn to form a magnetic fabric, which is subsequently magnetized to obtain the magnetic fabric. By eliminating the spinning process, the rush fibers can adsorb a large number of magnetic particles, ensuring the direct and rapid construction of rush-based magnetic fibers with high magnetic field strength, good mechanical properties, and high durability. Furthermore, the rush fibers maintain their fiber shape both before and during the molding process, and the magnetic fibers used enhance the magnetism of the prepared fabric while ensuring it possesses certain mechanical properties.

The invention discloses a protofilament quality intelligent interaction method and system based on visual inspection, and the method comprises the steps: building a quality distribution diagram and texture features through collecting multi-dimensional visual inspection data and fiber morphological parameters, and generating a defect change mode through employing a matching frequency extraction and feature transfer matrix; a defect propagation path is analyzed from the defect change mode, compensation correction is carried out, and a fiber characteristic distribution diagram is reconstructed; establishing a dynamic detection reference point, emitting a multispectral detection light source, and reconstructing the geometrical characteristics of the precursor through image fusion; identifying a high-defect area and a low-defect area in the geometrical characteristics of the precursor, and constructing a quality optimal strategy of a quality track and a high-quality track; mapping the quality optimal strategy to a feature analysis space for correlation analysis, identifying an interaction risk point and determining an interaction control factor; and the dynamic detection reference point is calibrated by using an interaction control factor, intelligent interaction control is completed by fusing with the geometrical characteristics of the precursor, and real-time monitoring, dynamic adjustment and intelligent optimization of the quality of the precursor are realized.

The invention relates to the technical field of oil filter paper, and discloses a pore homogenization preparation method of plant fiber oil filter paper, which comprises the following steps: S1, raw material pretreatment, S2, fiber refinement and dispersion, S3, pore regulator addition and mixing, S4, papermaking molding, S5, vacuum dehydration and hot-press setting, and S6, drying and post-treatment. According to the method, the accuracy of raw material pretreatment is realized: through fine screening of a drum type purifier, NaOH cooking under controllable conditions and accurate washing and draining, impurities of the raw materials are thoroughly removed, the chemical structure and the water content of the plant fibers are optimized, a high-quality raw material basis is provided for subsequent uniform dispersion of the fibers and formation of pores, and the method is suitable for industrial production. According to the method, uniformity of fiber refining and dispersion is achieved, balance of'moderate cutting and fibrillation 'of fibers is achieved through parameterization control of double-disc pulping, high-speed shearing dispersion is combined with constant-temperature control, monofilament formation of the fibers (the proportion of agglomerated fiber clusters is smaller than 5%) is further guaranteed, and the premise of uniformity of pore formation is guaranteed from the aspect of fiber morphology.