11 results about "Target fibers" patented technology

This utility model provides a high-mesh sieve for fiber content testing, including a base. The base has an output chamber tube with an opening that runs vertically through it. A detachable sieve is installed at the top of the output chamber tube. The sieve tube has a screening chamber with an outward opening. A high-mesh sieve is fixedly installed at the bottom of the screening chamber. Two splitting bases are fixedly installed on the inner wall of the screening chamber, with the splitting bases on both sides symmetrically arranged. This design, through the cascading design of an upper low-mesh sieve and a lower high-mesh sieve, achieves a synergistic operation mode of rapid impurity separation by coarse sieving and targeted fiber retention by fine sieving, thus improving fiber separation efficiency. Furthermore, the sieve frame is made of 304 stainless steel, and the middle sieve uses polyvinyl chloride fabric, improving the durability of the sieve and extending its service life.

This invention relates to the field of high-performance fiber materials technology, and discloses a long-lasting, UV-resistant, and highly stable Kevlar fiber. Using para-aramid as a matrix, it incorporates in-situ copolymerized grafted bis(aminotriazine)-benzimidazole UV-stabilizing units, and its surface is covalently bonded with a CeO2-TiO2 composite nanolayer via a silane coupling agent. This results in excellent UV resistance and structural stability, with a UPF value of 50-100+, and a strength retention rate of ≥90% after 500 hours of xenon lamp aging. It also retains ultra-high strength, high modulus, and high-temperature resistance. The preparation method includes synthesizing the bis(aminotriazine)-benzimidazole comonomer, low-temperature polycondensation of this comonomer with p-phenylenediamine and terephthaloyl chloride to obtain a copolymer spinning solution, followed by dry-wet spinning, alkaline etching, composite sol-coating, and high-temperature curing to obtain the target fiber. This invention employs dual modification through internal copolymerization and surface coating, resulting in a simple process suitable for industrial production. The obtained fiber can be used in aerospace, defense, and outdoor protection applications requiring long-term UV exposure.

The application discloses a kind of strength test methods, device and medium of fiberboard finished product, it is related to fiberboard test technical field, the method includes: after obtaining target fiberboard application scene parameter, standard test load is converted into working condition mapping loading mode, dynamic loading path is formed;Utilize path layout discrete multi-loading contact point, apply progressive load and introduce periodic micro-unloading disturbance;Collect structural response data, identify potential delamination diffusion trend;Combining maximum bearing value, stability analysis and delamination trend generate working condition consistency strength index.The application solves the technical problem that traditional fiberboard strength test method does not fully consider actual working condition parameters, leading to the disconnection of test results and actual use scene, achieves the technical effect that the strength index consistent with working condition is generated by simulating the load mode of real application scene, improves the matching degree and reliability of test results and actual application performance.

This invention discloses a functionalized lyocell fiber based on lotus leaf extract, its preparation method, and its application, belonging to the field of functional regenerated cellulose fiber technology. The method first prepares porous starch microcapsules from lotus leaf extract, then pre-treats cellulose pulp with enzymes, subsequently mixing it with N-methylmorpholine-N-oxide, sericin, and nano-zinc oxide to form a spinning solution. The solution is then spun using a dry-jet wet spinning method, coagulated, washed, and dried to obtain the target fiber, which can be further processed into an anti-inflammatory and repairing mask base fabric. This invention significantly improves the retention rate of active ingredients in lotus leaves through microcapsule encapsulation and low-temperature gentle spinning, achieving long-lasting sustained release. The resulting fiber possesses excellent mechanical properties, skin-friendliness, and anti-inflammatory and soothing effects, making it suitable for high-end mask base fabrics, medical dressings, and intimate textiles.

This invention relates to a method for preparing multifunctional triporous fibers from recycled polyester, belonging to the field of synthetic fiber technology. The invention first synthesizes a self-made flame retardant containing double bonds using DOPO as a base, then prepares quaternized vinyl imidazole-modified acrylate-based self-made antistatic particles. These two are then blended with recycled PET chips grafted with double-bonded monomers and an initiator, followed by melt spinning using a triangular spinneret to obtain the target fiber. The three-dimensional cross-linked network, the dispersion and toughening of functional particles, the rigid reinforcement of the flame retardant, and the formation of the triporous fiber synergistically enhance the fiber's mechanical properties. The polar groups of the flame retardant form ion pairs with the quaternary ammonium salt, effectively improving ionic conductivity and imparting good antistatic properties to the fiber. The charring and heat insulation of the flame retardant, combined with the gas-phase flame retardancy achieved by the antistatic particles releasing hydrogen halides to capture free radicals, synergistically achieve excellent flame retardant effects. The fiber prepared by this invention exhibits excellent mechanical properties, antistatic properties, and flame retardant properties.

The application discloses a composite automatic fiber placement path dynamic optimization method, device and medium, and belongs to the technical field of composite automatic fiber placement. The method comprises the following steps: obtaining a three-dimensional model of a component to be laid, and obtaining surface curvature distribution characteristics and fiber laying angle constraints based on the three-dimensional model; processing the surface curvature distribution characteristics based on a path planning algorithm to generate an initial fiber placement path; driving a fiber placement head to perform reverse pre-tension control based on a tension mapping table and a temperature compensation coefficient; obtaining actual fiber orientation data according to a preset sampling period based on a polarized laser polariscope, and extracting fiber angle deviations of the actual fiber orientation data; processing the fiber angle deviations and resin viscoelasticity data based on a Bayesian optimization algorithm to dynamically correct the laying path and generate an update instruction; and adjusting the spatial pose and tension of the fiber placement head according to the update instruction. The application realizes dynamic multi-target fiber placement path optimization and real-time feedback control based on the above method.

This invention belongs to the field of nylon melt spinning, and discloses a fine denier high-strength nylon fiber, its preparation method, and its applications. The fine denier high-strength nylon fiber is produced by melt spinning of raw materials including a PA substrate and a mixed functional masterbatch; the mixed functional masterbatch includes an ionic liquid and a copolymer CoPA66 / 6. The preparation method includes: using PA as the main material and the mixed functional masterbatch as the second component, or melting the PA main material using a single-screw extruder, adding the mixed functional masterbatch to the PA melt after side-feeding single-screw melting, then melt spinning to prepare nascent fibers, followed by 4-8 times stretching and heat setting to obtain fine denier high-strength nylon fibers. This invention utilizes the effective hydrogen bonds formed between the urea-containing ionic liquid and the amide groups to achieve the destruction of the hydrogen bond network during melting and its recombination after stretching and heat setting, thereby achieving the preparation of the target fiber. The obtained fiber has a breaking strength ≥9.0 cN / dtex and a breaking elongation of 16-24%, showing broad application prospects.

The present application relates to the field of communication technology, especially to a service cut method and system based on incremental synchronization and a storage medium. The method comprises the following steps: determining the cut task type according to the user request, disconnecting the fiber and marking the interrupted node and the broken state of the affected end-to-end service; rebuilding the target fiber, planning the label resource and the address resource; configuring the network element layer service data of the target fiber according to the resource allocation result; checking the network element layer service data, incrementally synchronizing the network element layer service data that passes the check to the subnet layer, and updating the activation state of the end-to-end service associated with the subnet layer; mapping the ID of the end-to-end service associated with the subnet layer to the network element layer, and incrementally issuing the network element node data with the specified activation state to the network element device, thereby realizing the service cut service. The present application improves the cut efficiency and accuracy, and shortens the service interruption time.

This invention discloses the preparation of photocatalyzed amylopyridine-oxime porous single-atom fibers and their application in seawater uranium extraction. Using polyacrylonitrile nanofibers as a framework, the target fiber material is obtained through a process of "high-energy ball milling – electrospinning – template elution – post-functionalization". High-energy ball milling transforms the metal ligand material into single atoms and stabilizes their dispersion; electrospinning constructs the macroscopic fiber structure; template elution simultaneously constructs hierarchical channels and exposes single-atom active sites in situ; and the amylopyridine-oxime reaction introduces uranium-trapping groups. The resulting material possesses both high-density, highly exposed single-atom photocatalytic centers and highly efficient amylopyridine-oxime trapping sites, synergistically achieving efficient reduction and fixation of uranyl ions under light irradiation, significantly improving the capacity and rate of seawater uranium extraction. This material exhibits superhydrophilicity and excellent antibacterial properties, making it suitable for real seawater. It provides a new material and strategy for solving problems such as active site aggregation, low mass transfer efficiency, and limited functionality in seawater uranium extraction.

This application relates to the field of optical fiber communication network technology and discloses a communication network optimization method based on optical fiber sensing and the importance of carried services. The method includes: periodically injecting optical time-domain reflectometry (OTDR) sensing signals into all spare fiber cores; calculating the current loss and crosstalk values ​​of each spare fiber core based on the backscattered signals; monitoring and analyzing the service flows carried on the operating fiber cores; determining the current service importance level of each service flow according to a power communication service type-level mapping table; when an operating fiber core fails, selecting and removing target fiber cores from the set of available spare fiber cores in descending order of service importance level according to fiber core selection rules, forming a mapping relationship; generating and sending port switching control commands based on the mapping relationship to migrate services and updating the network routing table. This application achieves refined perception of spare resources and intelligent protection of differentiated service needs during communication network fault recovery.

The application discloses a method and device and system for identifying fiber structure in an organ image. The method comprises: acquiring an image of a target region in a target organ, wherein the image is collected by a confocal endomicroscope; performing feature extraction on the image to obtain a feature map of fiber structure corresponding to the image; processing the feature map of the fiber structure by using an attention network to obtain an attention feature map corresponding to the feature map of the fiber structure, wherein the attention feature map is used for identifying a target fiber structure in the fiber structure; performing superposition processing on the attention feature map and the image to obtain an attention distribution heat map corresponding to the image; and identifying the type of the fiber structure in the image according to the attention distribution heat map. The application solves the technical problem that the current method for detecting lesions in the body is relatively complex, a large amount of time is consumed, and real-time observation of the pathological structure cannot be performed.