863 results about "Viscose" patented technology

The invention discloses a mixed gas-imitating gel fiber as well as a preparation method and application thereof, and belongs to the technical field of fiber materials. The mixed gas-imitating gel fiber is prepared from the following components: cellulose dispersion liquid, a silane coupling agent and viscose in a mass ratio of (1-3): (0.2-0.8): (5-10), comprising the following steps: adding sodium hydroxide into a cellulose dispersion liquid, adjusting the pH value to be alkaline, adding viscose and a silane coupling agent, and carrying out ultrasonic stirring to prepare a mixed spinning solution; the mixed spinning solution is extruded into a coagulating bath through a wet spinning device to be drafted, wet fibers are obtained, and the mixed gas-imitating gel fibers are obtained after freeze drying. The aerogel fiber disclosed by the invention has low heat conductivity coefficient, high mechanical strength and extreme temperature resistance, can solve the problem that the densification and porosity of a traditional fiber structure are difficult to balance, and effectively expands the application prospect of the aerogel fiber in the fields of cold protection, warm keeping and the like.

The invention relates to the field of aramid fabric recycling and reusing, in particular to a method for preparing flame-retardant shielding military tent fabric by recycling waste aramid fabric, which comprises the following steps: step 1, treating the waste aramid fabric with ionic liquid; 2, opening the aramid fabric and recycling aramid fibers; step 3, preparing regenerated flame-retardant prefabricated filaments; step 4, preparing tent base cloth; and step 5, preparing the heat-insulating shielding military tent fabric. Starting from multiple dimensions of aramid fiber recycling and reusing, micro-nano flame-retardant fiber preparation, fabric structure design, functional finishing and the like, more than 98% of flame-retardant viscose and aramid fiber in the aramid fiber blended fabric are recycled and utilized at high value, and the military tent fabric finally developed has the advantages that the flame-retardant viscose and the aramid fiber in the aramid fiber blended fabric are recycled and utilized at high value; the composite material integrates multiple functions of shielding and wave absorbing (the shielding rate is 72dB, the reflectivity is 34.32 dB, and the effective bandwidth is 13.8 GHz), flame retardance, heat insulation, water resistance, oil repellency, air permeability, moisture permeability, weather resistance, softness, durability and the like, and can be used for developing military tents.

The invention provides a preparation method of a full-hydrophilic composite material with a pore diameter gradient and a one-way moisture conduction function. A double-layer hydrophilic composite layer with a pore difference structure is prepared by adopting a means of combining an electrostatic spinning process and a spunlace non-woven process, so that the one-way moisture conduction function is realized. The preparation method comprises the following steps: firstly preparing a hemp / viscose spunlace non-woven layer, then preparing a polylactic acid / chitosan nanofiber membrane through an electrostatic spinning process, and finally compounding the hemp / viscose spunlace non-woven layer and the polylactic acid / chitosan nanofiber membrane to prepare the composite material with the one-way moisture conduction function. The two hydrophilic layers with fiber diameter difference and pore size difference are compounded through a double-layer assembly strategy, the composite material with a brand-new structure and a one-way moisture guiding function is constructed, the composite material has a good one-way liquid conveying function, the continuous one-way moisture guiding function is achieved, and the composite material is suitable for large-scale popularization and application. Wide application prospects are realized in the fields of textile clothing, medical and health materials and the like.

The glass fiber self-adhesive tape gluing mechanism is characterized in that bearing seats are symmetrically arranged on the upper surface of one end of a glue groove and located on the two sides, the two ends of a gluing roller are connected with the bearing seats in a matched mode respectively, the lower portion of the gluing roller is arranged in the glue groove, and vertical plates are arranged on the two sides of the upper surface of the other end of the glue groove; the two vertical plates are arranged on the upper surface of the glue groove, the ends, close to the glue spreading roller, of the vertical plates are connected with the baffle, a scraper which is obliquely arranged is arranged between the vertical plates, an air knife is arranged between the vertical plates and located above the scraper, and an air outlet of the air knife faces the scraper. According to the glass fiber self-adhesive tape, the scraper is used for scraping off redundant adhesive on the lower surface of the glass fiber gridding cloth, meanwhile, through cooperation of the air knife, on one hand, hole blowing is achieved, the redundant adhesive is blown off, and on the other hand, the adhesive accumulated at the end of the scraper is blown off along the scraper, so that the quality of the glass fiber self-adhesive tape is guaranteed.

The invention provides a preparation process and preparation equipment for a viscose-based short fiber solid felt with a gradient pore structure, and relates to the technical field of solid felt preparation, and the preparation process comprises the following steps: carrying out pre-needling reinforcement treatment on a carded fiber web, and carrying out pre-needling reinforcement treatment on the carded fiber web through a pre-needling machine in a needling unit, with the needling frequency of the pre-needling machine being 500-800 times / min. The viscose-based short fiber solid felt with the gradient pore structure is prepared by selecting viscose-based short fibers with different linear densities and lengths, reasonably mixing and proportioning and combining a gradient needling treatment process, the preparation process is simple and easy to implement, the pore gradient distribution of the solid felt can be accurately regulated and controlled, the special requirements of different fields on the pore structure of the material are met, and the application prospect is wide. The problems that the pore structure of the viscose-based short fiber solid felt prepared by the traditional process is usually relatively single and uniform and is difficult to meet the strict requirements of some special application scenes on gradient change of the pore structure of the material are solved.

The invention discloses an optical detection type cloth defect detection device and method based on polyester-viscose gray fabric processing, and relates to the technical field of optical detection.The optical detection type cloth defect detection device comprises a frame body and an unwinding roller rotationally installed on the frame body and further comprises cloth; a material conveying assembly is installed on the frame body and used for conveying cloth, and a tension control assembly is installed on the frame body. The cloth flaw detection device has the advantages that before flaws on cloth are detected, the cloth is flattened, the influence of wrinkles on detection is reduced, meanwhile, impurities adhered to the cloth are cleaned, so that the detection accuracy is improved, the flaws and flaws on the cloth are amplified by increasing the tension of the cloth during detection, optical detection is facilitated, and the detection efficiency is improved. The minimum limit of optical detection is expanded, the winding loosening speed is automatically adjusted according to the expanded tension during winding, winding can be carried out smoothly, and the situation of winding wrinkles caused by winding springback is prevented.

The invention relates to a high-temperature-resistant UV viscosity-reducing adhesive tape and a preparation method thereof, and belongs to the technical field of UV viscosity-reducing adhesive tapes. The high-temperature-resistant UV viscosity-reducing adhesive tape comprises a base material layer, an adhesive layer and a release layer which are sequentially arranged, wherein the adhesive layer is prepared from an adhesive; the adhesive is prepared from the following components in parts by weight: 100 parts of an acrylate polymer, 0.1 to 2 parts of a cross-linking agent, 1 to 3 parts of a photoinitiator, 0.2 to 0.8 part of an antioxidant and 35 to 100 parts of a first solvent; the acrylate polymer comprises the following components in parts by weight: 70-80 parts of a soft monomer, 20-30 parts of a hard monomer, 5-10 parts of a polyfunctional monomer, 0.1-1 part of an initiator, 0.05-0.2 part of a polymerization inhibitor, 1-7 parts of an end-capping reagent and 100-200 parts of a second solvent. The UV viscosity-reducing adhesive tape can still keep excellent viscosity-reducing performance after being subjected to high-temperature treatment, and the effect that the viscosity is not reduced or even improved after being subjected to high-temperature treatment can be achieved.

The invention provides a bionic hollow petal-shaped SiC fiber porous thermal insulation material as well as a preparation method and application thereof, and belongs to the technical field of thermal insulation materials. The preparation method comprises the following steps: taking a viscose-based carbon fiber felt as an initial structure template, dipping the carbon fiber felt in siloxane sol, taking out the carbon fiber felt, and carrying out suction filtration to remove redundant sol on the surfaces of carbon fibers; curing the impregnated carbon fiber felt, and carrying out heat treatment to obtain the carbon fiber felt of which the carbon fiber surface is covered with a uniform SiC coating; and carrying out thermal oxidation treatment on the carbon fiber felt with the SiC coating to obtain the bionic hollow petal-shaped SiC fiber porous thermal insulation material. Compared with a traditional sol-gel method, the method has the advantages of being short in preparation period, low in cost, small in volume shrinkage rate and the like, and the obtained bionic hollow petal-shaped SiC fiber porous heat insulation material has good rebound resilience and excellent high-temperature heat insulation performance and has wide application prospects in a high-temperature oxidation environment.

The present invention uses viscose-based carbon fiber as raw material, chops it and mixes it with auxiliary material A solution, then puts the mixed chopped fibers into a vacuum tube furnace for heating to obtain pretreated carbon fiber, then mixes auxiliary material B solution with the pretreated carbon fiber to obtain mixed carbon fiber, and puts the mixed carbon fiber into an oven for cross-linking and curing to obtain a mixed gel, and finally performs a high-temperature cracking reaction on the mixed gel to finally obtain a short-fiber hard thermal insulation composite material. The viscose-based short-fiber thermal insulation composite material of the present invention has low thermal conductivity, good mechanical properties, and excellent density and high-temperature resistance.

The present invention relates to the field of fibers, and in particular, to a preparation method for a protein composite fiber. The preparation method comprises spinning, pretreatment, surface treatment, preparation of modified mineral powder, loading, mixing and crosslinking. A pretreated nascent fiber is immersed in a protein composite solution to be in full contact with modified extract mineral powder and a soluble protein, and a crosslinking reaction is carried out; the structure of the dried fiber is more compact; the extract and the soluble protein are more stable in the fiber while the fiber strength is improved; and the loss rate is less than 1% after washing for 50 times. The protein composite fiber prepared by the present invention is skin-friendly and soft, has good moisture absorption and moisturizing effects, and is rich in amino acid and protein, wherein the content of the protein is up to about 12%. Moreover, in the present invention, a common fiber is used as a base material, thereby achieving natural antibacterial, anti-oxidation and deodorizing effects while endowing fibers such as viscose, acrylic fibers, polyester, chinlon, vinylon, and polypropylene fibers with the advantages of a natural protein on the basis of ensuring excellent properties of the base material itself, and thus the range of application is wider.

The invention belongs to the technical field of insulating materials, and relates to a preparation method of a modified mica insulating material and a temperature-resistant mica tape production process. -NH2 on the surface of the silane modified mica material is connected with interface amino groups between cyclic carbonate to obtain a hydroxyl polyurethane hybridized mica material, and the hydroxyl polyurethane hybridized mica material is prepared into the calcined mica paper. And starting from the polyester film, respectively obtaining a non-self-adhesive mica tape product and a self-adhesive mica tape product through two different preparation processes. The method comprises the following steps: 1, coating a polyester film with an adhesive, compounding the polyester film with modified calcined mica paper, drying, rolling and slitting to obtain a non-self-adhesive mica tape product; and 2, carrying out corona treatment on the back surface of the polyester film, coating a self-adhesive glue, drying, coating an adhesive, compounding with the modified calcined mica paper, drying, rolling and slitting to obtain the self-adhesive mica tape product. The modified mica tape has excellent insulating property in a high-temperature environment, and aging and decomposition phenomena of the mica layer can be effectively inhibited.

The invention relates to the technical field of color detection, in particular to a color difference calculation optimization method and system for archaized linen viscose reactive dyeing. Comprising the following steps: monitoring a fabric motion state in real time, calculating a motion speed and displacement, and determining a spectrum acquisition opportunity and a position compensation parameter; illuminating the surface of the to-be-detected fabric at an acquisition position through a polarized light source, and performing polarized spectrum data acquisition in the normal direction of the surface of the fabric to obtain reflection spectrum information; exciting the surface of the to-be-detected fabric by adopting an ultraviolet light source, collecting fluorescence spectrum data, and identifying different fiber areas; calculating fiber density distribution in the fiber area, and constructing a layered weight system; calculating chromatic aberration of the fiber area based on the reflection spectrum information, extracting chromatic aberration characteristics, and measuring and calculating an antique degree quantification result; setting a color difference threshold value standard according to an antique degree quantification result, and adjusting a color difference threshold value according to an evolution trend; and based on the layered weight system and the chromatic aberration threshold, performing weighted calculation on the chromatic aberration value of the fiber region to obtain a comprehensive chromatic aberration evaluation result.

The invention discloses a polyester fiber acoustical board with high yield strength. The polyester fiber acoustical board comprises a micro-perforated metal surface layer, a gradient density polyester fiber layer, a honeycomb metal framework layer and an elastic damping bottom layer which are sequentially stacked and fixed through mucilage glue from top to bottom. A vertically-distributed metal surrounding plate is arranged around the side edge of the micro-perforated metal surface layer, the metal surrounding plate and the micro-perforated metal surface layer are of an integrally-formed structure, and the gradient density polyester fiber layer and the honeycomb metal framework layer are wrapped by the metal surrounding plate. And the honeycomb metal framework layer is fixed with the adjacent upper and lower layers through mucilage glue, and is also fixed with the metal coaming through rivets. By means of the innovative composite lamination design, the strength defect of a traditional polyester fiber acoustic board is effectively overcome. The micro-perforated metal surface layer and the integrally formed metal coaming form a rigid outer frame, so that the internal fiber layer is protected from mechanical damage, and the overall flexural rigidity is remarkably improved through the bearing effect of the metal framework.

The invention provides a viscose-based short fiber solid felt wet forming process and system, and relates to the technical field of solid felt wet forming, and the process comprises the following steps: immersing a wet felt blank into an adjustable overflow sizing tank, applying a phenolic resin glue solution, removing redundant glue solution through a stainless steel suction box, then feeding into a multi-section curing oven, and drying and curing in sections at 120-200 DEG C to obtain the viscose-based short fiber solid felt. The humidity in the multi-section curing oven is controlled to be 10%-30%. The wet felt blank is fed into a multi-section curing oven, the material gradually adapts to the curing environment in the preheating section and is prepared for subsequent curing, the main curing section is rapidly heated through a natural gas burner, the main curing process of the material is achieved, and it is ensured that the performance of the material is stably improved, and the material is slowly cooled in the cooling section, so that internal stress caused by sudden temperature drop is avoided; optimal treatment can be achieved in all stages, the product quality is effectively guaranteed, and the problems that the temperature control precision of a conventional curing oven is poor, and the material buckling deformation risk is increased are solved.

The utility model relates to the technical field of textile, in particular to a comfortable and environment-friendly regenerated viscose knitted fabric, and the pattern of the comfortable and environment-friendly regenerated viscose knitted fabric is circulated by six paths from bottom to top, the weave structure of the first path sequentially comprises a lower needle cylinder floating thread weave, a lower needle cylinder tuck stitch, an upper dial tuck stitch and an upper dial floating thread weave; wherein the second path of stitch structure comprises a lower needle cylinder tuck stitch, a lower needle cylinder floating thread stitch, an upper dial floating thread stitch and an upper dial tuck stitch in sequence; the third path of weave structure comprises a lower needle cylinder floating thread weave, a lower needle cylinder floating thread weave, an upper dial small looping weave and an upper dial small looping weave in sequence; the texture structure and the fabric formed by blending the selected textile fibers have good hygroscopicity, air permeability and elasticity, are suitable for making comfortable sportswear, and meet the requirements of consumers for high quality and comfort.

The invention discloses a preparation mold and a preparation method of a gingival crevicular fluid sampling brush capable of rapidly sampling. The preparation mold comprises a female mold and a male mold cover plate, brush hair fibers are placed in the female mold, the male mold cover plate is covered after the brush hair fibers are evenly and fully laid, the brush hair fibers are slightly pressed through the gravity of the cover plate, and then the tail ends of the fibers are glued; on the basis of mold preparation, sampling brushes of different specifications are prepared through quantification, trimming, gluing, drying and fixing and two-step screening, the structure preparation is simple, operation is easy, the liquid absorption rate is high, compared with periopaper, the speed is increased by two times, the discomfort of a patient can be relieved, and the working efficiency is improved.

The invention relates to the field of industrial data processing and analysis, in particular to an intelligent production system for polyester-viscose color spinning antistatic fabric and a medium. The method comprises the following specific implementation steps: collecting acoustic data streams generated by breakage of conductive fibers, synchronously collecting image data streams, carrying out refined classification and quantification on yarn hairiness and broken ends, fusing multi-source data by adopting Kalman filtering, and inputting the fused multi-source data into a gated recurrent neural network to predict future quality deviation. An optimal control action sequence is generated based on a model prediction control algorithm, and multiple technological parameters are actively adjusted to avoid production defects. According to the method, the fundamental transformation from passive defect detection to active defect avoidance is realized, the defect prediction precision and the control optimality are remarkably improved, and the diagnosis and insight ability of the production process is enhanced through refined defect classification.

The invention relates to the technical field of adhesive preparation, and discloses a shaving board biomass adhesive preparation adding device and an adding method thereof.The shaving board biomass adhesive preparation adding device comprises a spherical mixing bin, a heating rod is arranged in the shell wall of the spherical mixing bin, a feeding port is fixedly connected to the top of the spherical mixing bin, and a hopper is fixedly connected to the top of the feeding port; a discharging pipe is fixedly connected to the bottom of the spherical mixing bin, an intermittent feeding mechanism is arranged in a feeding port, and the method comprises the following steps that firstly, raw materials are prepared; 2, the adding amount of the raw materials added at a time of an intermittent feeding mechanism is set; and step 3, mixing the raw materials, intermittently adding the raw materials, and realizing process optimization by accurately setting the adding amount each time, so that the inherent advantage of intermittent adding can be amplified, the stability, efficiency and controllability of viscose preparation can be further improved through quantitative control, and the dynamic balance in a reaction system is ensured.

The invention relates to the technical field of brake materials, in particular to a high-thermal-conductivity ablation-resistant carbon ceramic brake disc and a preparation process thereof. The carbon-ceramic brake disc overcomes the defects that an existing carbon-ceramic brake disc is poor in mechanical property and ablation resistance. The preparation method comprises the following steps: preparing modified polyacrylonitrile-based carbon fibers by taking polyacrylonitrile-based short carbon fibers, gamma-aminopropyltriethoxysilane, multiwalled carbon nanotubes, nickel sulfate hexahydrate and ferrous sulfate heptahydrate as raw materials; the preparation method comprises the following steps: preparing modified asphalt-based carbon fibers by taking asphalt-based short carbon fibers, nano silicon carbide and gamma-aminopropyltriethoxysilane as raw materials; preparing modified viscose-based carbon fibers by taking viscose-based chopped carbon fibers and tantalum carbide as raw materials; three modified fibers are used as raw materials of the enhancement layer, the heat conduction layer and the ablation layer; the carbon-ceramic brake disc is prepared through raw material mold pressing, two-stage high-pressure dipping, densification treatment, interface treatment, heat treatment and chemical vapor deposition, and the carbon-ceramic brake disc has the advantages of being high in mechanical property and ablation resistance.

The invention relates to a carboxyl-terminated polyester-based polyurethane UV viscosity-reducing adhesive and a preparation method thereof, and belongs to the technical field of new materials. The polyurethane UV viscosity-reducing adhesive provided by the invention is used for wafer manufacturing. The preparation method comprises the following steps: dissolving itaconic acid and 1, 4-butanediol in a solvent, and carrying out a heating reaction under the action of a catalyst to prepare a carboxyl-terminated prepolymer; carrying out ring-opening reaction on the carboxyl-terminated prepolymer and glycidyl methacrylate under the action of a catalyst to prepare hydroxyl-terminated polyester; the preparation method comprises the following steps: reacting hydroxyl-terminated polyester with isocyanate, and introducing a chain extender and a photoinitiator to prepare the rapidly-cured UV viscosity-reducing adhesive. The polyurethane UV viscosity-reducing glue is coated on a polyolefin film, the peeling strength at 180 degrees before ultraviolet irradiation after curing is 23.21-30.29 N / 25 mm, and the peeling strength at 180 degrees after ultraviolet irradiation is 0.07-0.19 N / 25 mm. According to the invention, the carboxyl-terminated prepolymer and glycidyl methacrylate are subjected to a ring-opening reaction, the viscosity reducing effect after UV irradiation is significant due to increase of double bonds, the 180-degree peel strength after UV irradiation is reduced, and no adhesive residue and degumming are realized.

The invention relates to the technical field of pressure-sensitive adhesive tapes, in particular to a reusable high-temperature viscosity-reducing adhesive tape which comprises a pressure-sensitive adhesive body, the pressure-sensitive adhesive body comprises polyisoprene and tackifying resin, and the tackifying resin can be two or three of petroleum resin, terpene resin and phenolic resin; when the weight part of the polyisoprene is 100 parts, the weight part of the petroleum resin is 0-30 parts; the weight part of the terpene resin is 20 to 60 parts; the weight part of the phenolic resin is 3 to 10 parts. Compared with the prior art, the reusable high-temperature viscosity-reducing adhesive tape has high viscosity at normal temperature, the viscosity of the adhesive tape is greatly reduced during high-temperature processing, the adhesive tape can be easily peeled off when the adhesive tape is still hot, and when the adhesive tape recovers to the room temperature, the viscosity recovers to the level before use, so that the reusable high-temperature viscosity-reducing adhesive tape can be reused for multiple times.

The utility model provides an improved baby girl urine collector which comprises a storage bag, a collecting bag is arranged at the bottom of the storage bag, and a communicating hole is formed between the storage bag and the collecting bag. The adhesive tape is adhered to the surface of the storage bag, and a through hole is formed between the adhesive tape and the storage bag; the suction assembly is arranged in the storage bag and comprises suction cotton, the surface of the suction cotton is provided with mucilage glue, and the mucilage glue adheres to the inner wall of the storage bag. According to the improved baby girl urine collector provided by the utility model, the adhesive tape, the suction assembly, the collection bag and the through hole are respectively arranged inside and on the surface of the storage bag, so that urine can be sucked and stored through the suction cotton when a baby girl patient urinates; after the urine is sufficiently sucked by the suction cotton, the urine in the suction cotton flows into the collection bag to be collected in an extrusion manner.

The invention relates to a coating device (1) for applying a viscous material to a substrate, comprising a nozzle (2) through which the material can be conveyed from the coating device (1) to the substrate, and a line (3) through which the nozzle (2) is connected to a reservoir (4) in which the material can be stored, and a conveying device (5) arranged on the line (3) through which the material can be conveyed from the reservoir (4) via the line (3) to the nozzle (2), and a first filter device (7) comprising at least one filter (6), which is arranged in the line (3) upstream of the nozzle (2) in the conveying direction (8), wherein an intermediate storage reservoir (9) and a second filter device (10) are arranged in the line (3) between the conveying device (5) and the first filter device (7). The invention further relates to a method for conveying viscous material onto a substrate.

The invention discloses a low-value plant fiber material recombined fireproof door core and a preparation method thereof, and relates to the field of fireproof materials. Comprising a plurality of veneers which are laminated and compounded, inorganic flame-retardant adhesive layers are arranged between every two adjacent veneers and on the surface of the veneer located on the outer side, and each inorganic flame-retardant adhesive layer comprises trisodium phosphate, a magnesium chloride solution, starch glue, boric acid, magnesium oxide, silicon dioxide, tartaric acid and an emulsifier. According to the fireproof door core, the inorganic flame-retardant adhesive and the veneers are subjected to multi-layer cross compounding, the heat-insulating fireproof layers are formed between the boards, and the surface inorganic flame-retardant adhesive layers can effectively prevent flame from directly burning the fiber veneers, so that the fireproof door core reaches a relatively high fireproof grade, the door core has high impact resistance and deformation resistance, the fiber materials are low-carbon and environment-friendly, and the fireproof door core is suitable for being popularized and used. The material has the advantages of light density, excellent sound insulation and heat insulation effects, no emission of harmful substances or harmful gases in the manufacturing process, and conformity to national industrial policies.

The invention discloses a preparation method of a UV viscosity-reducing adhesive tape. The preparation method specifically comprises the following steps: (1) adding a thermal initiator into an acrylic monomer for heating copolymerization; (2) adding a photoactive monomer and an active tin reagent for heating and grafting; (3) adding a photoinitiator and an auxiliary agent, and mixing; (4) coating the base material layer and baking; and (5) covering a release film, and curing. According to the invention, the photoactive monomer is directly grafted to the branched chain of the base adhesive skeleton, the UV viscosity-reducing adhesive can be prepared without subsequent addition of a multifunctional monomer or oligomer, and meanwhile, the auxiliaries are creatively added, so that the effective adjustment of the UV viscosity-reducing adhesive between the adhesive force and the viscosity can be realized. The UV viscosity-reducing adhesive tape prepared from the UV viscosity-reducing adhesive is high in initial adhesion (19.09 N / 25 mm at most), can well protect and fix a protected material, is low in stripping force (0.18 N / 25 mm at least) after being irradiated by UV light, is easy to strip from the protected material, and has the characteristics of no pollution, no residue and the like.

The invention discloses a phase-change temperature-adjusting blended fabric and a preparation method thereof, and belongs to the technical field of functional fabrics. The fabric comprises a fabric layer, a temperature adjusting layer and a coating, the fabric layer comprises meta-aramid porous fibers and flame-retardant viscose, the interior of the fabric layer is of a honeycomb structure, and the porous fibers are prepared from meta-aramid and metal organic framework nanoparticles through wet spinning; the component of the temperature adjusting layer is phase change microcapsules which are embedded in the honeycomb structure; and the component of the coating is waterborne polyurethane. Based on the strong adsorption effect and chemical immobilization effect of the honeycomb porous structure in the aramid porous fiber on the phase change microcapsule, efficient loading of the phase change material in the fabric can be realized, and the problem of leakage caused by large volume change of the traditional phase change material in the fabric is solved; by means of the excellent serviceability of the flame-retardant viscose, the fabric can be endowed with good application potential; the fabric has outstanding flame retardance and thermal protection capability, and has important value in the aspect of personal thermal protection in extreme environments such as extremely cold environments.

The utility model relates to the technical field of industrial tail gas treatment, in particular to an oxidized tail gas treatment device. Comprising a hydrogen peroxide oxidation tail gas pipeline, a cold box, a first-stage separator, a first tail gas heat exchanger, a turbine expansion generator set, a second-stage separator, a second tail gas heat exchanger, an oxidation tower middle cooler, an activated carbon fiber adsorption tower and a working solution / hydrogen peroxide separator, and the hydrogen peroxide oxidation tail gas pipeline is communicated with the first-stage separator through a cooling channel of the cold box. According to the utility model, the circulating water outlet of the cooler in the oxidation tower is used for heating, so that the energy is saved, the generating capacity of the turbine expansion generator set is increased by 60%, the temperature of the tail gas reaches 30 DEG C before entering the activated carbon fiber adsorption tower, the aromatic hydrocarbon adsorption efficiency is increased, the aromatic hydrocarbon content in the discharged tail gas is reduced, and the steam quantity required in the desorption work is reduced; pVA-based active carbon fibers are used for replacing viscose-based active carbon fibers, the surface area is increased, and the aromatic hydrocarbon adsorption effect is better.

The invention provides an absorber of a novel environment-friendly composite fiber sanitary napkin as well as a preparation method and application, and belongs to the technical field of hygienic products, the absorber of the novel environment-friendly composite fiber sanitary napkin comprises at least three layers of fiber net structures, an upper surface layer and a lower surface layer are made of ES fibers, a middle layer is made of bamboo-based modified viscose yarns, and the middle layer is made of bamboo-based modified viscose yarns. All the layers form a tightly connected structure through microwave crosslinking, and according to the sequence of the upper surface layer, the middle layer and the lower surface layer, the pore diameter is of a continuous gradient pore structure with gradually reduced pore diameter. The absorber of the prepared environment-friendly composite fiber sanitary towel has excellent water absorption, reverse osmosis resistance and antibacterial durability, and efficient, comfortable and reliable nursing can be provided for a user in the menstrual period.

The invention discloses an anti-puncture composite material and a preparation method thereof, and belongs to the technical field of anti-puncture composites.The two sides of a pre-coated carbon fiber cloth are coated with a composite adhesive, composite aerogel films are pasted on the two sides of the pre-coated carbon fiber cloth respectively, a layer of fabric is pasted through the coated composite adhesive after rolling compounding is conducted, rolling compounding is conducted again, and the anti-puncture composite material is obtained. And curing to obtain the anti-puncture composite material. The pre-coated carbon fiber cloth is impregnated with tetrapod-like nano zinc oxide whiskers and can play a role of barbing, the composite adhesive is added with flaky nano carbon nitride powder, compared with spherical filler, the composite adhesive is more easily limited by the tetrapod-like nano zinc oxide whiskers, slippage between the pre-coated carbon fiber cloth and the composite aerogel film is reduced, and the composite aerogel film is more durable. The puncture force can be better dispersed into the whole composite material, so that the anti-puncture performance is improved; the composite aerogel film mixed with the calcium phosphate particles can effectively disperse stress and prevent crack propagation, and the compression resistance and puncture resistance of the puncture-proof composite material can be improved.