24 results about "Kapok fiber" patented technology

An aerosol-generating article (10)(100)(1000) comprises: an aerosol-generating substrate (12)(112)(1004); a downstream element (42)(150)(1008) provided downstream of the aerosol-generating substrate (12)(112)(1004) and in axial alignment with the aerosol-generating substrate, the downstream element comprising a cellulosic filtration material. The fibrous material comprises a plurality of regenerated cellulose fibres selected from one or more of viscose fibres, modal fibres, Lyocell fibres and viscose rayon fibres; or a plurality of natural fibres selected from one or more of flax fibres, hemp fibres, jute fibres, kenaf fibres, ramie fibres, abaca fibres, phormium fibres, sisal fibres, coir fibres, cotton fibres, and kapok fibres. The cellulosic fibrous material further comprises an additive coating applied to the plurality of regenerated cellulose or natural fibres, the additive coating comprising at least 5 percent by weight of exogenous lignin on a dry weight basis.

The aerosol generating article (10)(100)(1000) comprises an aerosol generating substrate (12)(112)(1004) and a downstream element (42)(150)(1008) provided downstream of the aerosol generating substrate (12)(112)(1004) and axially aligned with the aerosol generating substrate, the downstream element comprising a cellulosic filtration material. The fibrous material comprises a plurality of regenerated cellulose fibers selected from one or more of viscose fibers, modal fibers, lyocell fibers, and viscose rayon fibers, or a plurality of natural fibers selected from one or more of flax fibers, hemp fibers, jute fibers, kenaf fibers, ramie fibers, abaca fibers, phormium fibers, sisal fibers, coir fibers, cotton fibers, and kapok fibers. The cellulosic fibrous material further comprises an additive coating applied to multiple regenerated cellulose or natural fibers, the additive coating containing at least 5% by weight of exogenous lignin on a dry weight basis.

The invention relates to the technical field of non-woven materials and engineering, in particular to gradient aperture multilayer fiber composite wiping cloth and a preparation method thereof, and is characterized in that the wiping cloth is a multilayer fiber composite material with different gradient apertures, which is formed by carding kapok fibers and ES (Ethylene-Propylene-Styrene) fibers through a web forming process and needling reinforcement; wherein the ratio of the kapok to the ES fiber is 0: 100, 20: 80, 40: 60 and 60: 40, the tensile strength of the kapok fiber is 1.68 cN / dtex, the tensile strength of the ES fiber is 1.96 cN / dtex, the carding frequency of a fine opener is 40.42 HZ, the frequency of a pre-needling machine is 15.69 HZ, the positive and negative frequency of a main needling machine is 30.47 HZ, and the preparation linear speed is 10m / min; a set of automatic production line is constructed by integrating quantitative feeding, automatic circulation and hoisting systems, and by independently feeding and finely processing the ES / kapok fibers and combining the on-line weighing and static electricity elimination technology, it is ensured that the gram weight of a fiber layer is uniform, the structure is gradient, and the production efficiency is improved. And the automatic guide transport vehicle and the hoisting system realize full-process automatic circulation of materials.

This invention discloses an amorphous / nanocrystalline alloy composite microwave absorbing film with a high bandwidth-to-thickness ratio, which is composed of an absorber and a flexible polymer matrix; the absorber is amorphous / nanocrystalline Fe. 85 The composite filler formed by anchoring SiAl6Cr8 alloy onto nitrogen-doped carbonized kapok fiber is denoted as NCKF / FSAC composite filler; the flexible polymer matrix is ​​waterborne polyurethane, denoted as WPU; the mass ratio of NCKF / FSAC composite filler to WPU is (6:4) to (9:1). Through the creative absorber composition structure, polymer matrix type and mass ratio of the two, the composite absorbing film has achieved the advantages of high bandwidth-to-thickness ratio, excellent flexibility and good thermal stability.

The invention discloses a kapok fiber sheet and a production process, the kapok fiber sheet comprises a fabric layer and a kapok warm-keeping layer, the fabric layer is arranged on the top surface and / or the bottom surface of the kapok warm-keeping layer, the fabric layer is used for protecting the surface of the kapok warm-keeping layer, the structural stability and the warm-keeping performance are improved, the kapok warm-keeping layer comprises kapok fiber and a binding substance, and the binding substance is arranged on the surface of the kapok warm-keeping layer. The kapok fiber and the binder are uniformly mixed and then flatly laid to form a kapok warm-keeping layer, production is carried out through burdening, scattering, dispersing, transferring, net forming and hot drying, the kapok fiber and the binder are mixed and dispersed through the high-pressure airflow dispersing bin, the mixing uniformity is ensured, the binder can be hot-melted in the hot drying process to bond the kapok fiber, and the kapok fiber warm-keeping layer is formed. And the structural stability is further improved.

The utility model discloses a kind of tile type staggered laminated heat insulation filling fabric based on kapok, belong to textile material technical field.The fabric includes by weaving machine one-off weaving first to fourth layer, wherein second layer and third layer are formed with periodic undulation by weaving process Tile type staggered laminated structure.The upper edge of second layer tile fabric is connected with first layer, lower edge is connected with the upper edge of third layer tile fabric, the lower edge of third layer tile fabric is connected with fourth layer, to form three layers of mutually independent and alternate distribution filling channel system.The utility model uses full cotton warp and weft yarn fabric, realizes firm connection between layers by weaving process, without chemical adhesive.Filling channel can select filling kapok fiber and its mixture, with excellent warmth retention, air permeability and structural stability.

The invention discloses an antibacterial modal fabric, which comprises a base cloth, a synergistic filament group is arranged in the base cloth, the synergistic filament group comprises kapok fiber yarn, elastic fiber yarn, fitting fiber yarn and moisture-conducting fiber yarn, the kapok fiber yarn is blended in the base cloth in the weft direction, and the elastic fiber yarn is twisted and woven on the outer side of the kapok fiber yarn. According to the antibacterial modal fabric, through cooperation of the base cloth and the synergistic yarn groups, the raising condition after long-time wearing is relieved, meanwhile, the elastic fiber yarn twisted and woven on the outer side of the kapok fiber yarn can improve the elastic deformation capacity of the base cloth, and the comfort-increasing fiber yarn blended in the base cloth can improve the skin contact comfort degree to a certain degree; the moisture-conducting fiber yarns twisted and woven on the outer side of the adaptation-increasing fiber yarns can quickly absorb moisture and sweat on the surface layer of the skin and transmit and diffuse the moisture and sweat to the outer side of the base cloth, so that the functionality is improved, and popularization and use are facilitated.

The invention discloses a preparation method of a moisture-absorbing, heating and warm-keeping kapok fabric, which comprises the following steps: S1, preparing yarns from 15-40% of kapok fibers and 60-85% of graphene modified lyocell fibers through the processes of scutching, cotton carding, drawing, roving and spinning; s2, the prepared yarn serves as warp yarn and weft yarn, the warp density is 275-325 pieces / 10 cm, the weft density is 220-270 pieces / 10 cm, and a common weaving machine is adopted for weaving. Through collaborative optimization of fiber combination in a specific proportion and a conventional spinning process, stable blending of the kapok and the graphene modified lyocell fiber is achieved, meanwhile, the functional characteristics of the kapok and the graphene modified lyocell fiber are reserved, and the functions of heat preservation, moisture absorption and heating are achieved.

The invention relates to an amorphous KFC / SiOx (at) C composite negative electrode material capable of inhibiting volume change and a preparation method and application of the amorphous KFC / SiOx (at) C composite negative electrode material. The preparation method comprises the following steps: collecting waste biomass kapok fiber (KF) for pretreatment, growing organic silicon balls on the tube wall of the KF through a sol-gel method, carrying out PDA coating on KF / organic silicon, and carrying out high-temperature pyrolysis on the KF / organic silicon coated PDA in a reducing atmosphere to prepare KFC / SiOx coated C which is used as a lithium ion battery negative electrode material. The organic silicon spheres uniformly grow on the inner wall of the carbon tube, carbon coating is performed on the surface, and the core-shell structure KFC / SiOx (at) C composite material is formed through high-temperature carbonization and reduction, so that the volume expansion change of a SiOx active substance in the charging and discharging process is effectively inhibited, and the conductivity and the structural stability of the silicon-based negative electrode are improved; according to the method, the waste biomass is recycled and resourcefully utilized, the environment-friendly high-performance silicon-carbon negative electrode material is prepared, exploitation of non-renewable resources is reduced, and a new application is provided for resourcefully utilizing the waste biomass.

The invention discloses a production process of bleached kapok fibers, which is characterized in that because the specific gravity of kapok is only 1 / 5 of that of cotton, an atomization sprayer needs to be additionally arranged on an air supply pipe to prevent flying pollution. Impurities in the kapok are removed as far as possible by a physical and mechanical method, so that the burden in vertical pot chemical steaming and bleaching is reduced, and the steaming and bleaching quality is improved; meanwhile, a one-step steaming and bleaching process and a two-step steaming and bleaching process of the kapok fibers are introduced; the prepared degreased and bleached kapok fiber can be widely applied to the fields of home textiles, clothing, medical treatment and public health, military industry, environmental protection, cultivation and the like.

The invention provides a medical electromagnetic shielding composite material and a preparation method thereof, and belongs to the technical field of functional composites.The electromagnetic shielding composite material comprises an MXene / kapok pulp mixed layer; the surface of one side of the MXene / kapok pulp mixed layer is coated with a graphene oxide coating, and the surface of the other side of the MXene / kapok pulp mixed layer is provided with a PAN nanofiber membrane; the MXene / kapok pulp mixed layer comprises a modified kapok pulp layer and MXene randomly distributed in the modified kapok pulp layer in a three-dimensional manner. According to the composite material, through the structural design, electromagnetic shielding leading to absorption is achieved, and secondary pollution is effectively avoided. The air permeability and moisture permeability of the kapok fibers improve the medical comfort level. The GO protective layer obviously enhances the environmental stability of MXene. The material integrates efficient and stable electromagnetic shielding, biocompatibility and use comfort, and has wide application prospects in the fields of wearable medical equipment, electromagnetic shielding dressings and the like.

The invention provides a flame-retardant and smoke-suppressing foam board and a preparation method and application thereof, and belongs to the technical field of boards, specifically, the flame-retardant and smoke-suppressing foam board sequentially comprises a first decorative layer, a second decorative layer, a third decorative layer and a fourth decorative layer from bottom to top, and the first decorative layer is made of PVC alloy; a soundproof support layer; a structural support layer; the second decorative layer is made of a PVC (Polyvinyl Chloride) alloy; wherein the sound insulation supporting layer comprises PVC (Polyvinyl Chloride) resin; calcium powder; a foaming control agent; a yellow foaming agent; a white foaming agent; boron-phosphatized kapok fibers; the structure supporting layer comprises PVC (Polyvinyl Chloride) resin; calcium powder; a foaming control agent; a lead salt stabilizer; pE wax; an internal lubricant; oxidizing the wax; a yellow foaming agent; a foaming agent; a composite whitening agent; the invention discloses boron-phosphatized wood powder. The product provided by the invention has the effects of light weight, flame retardance, smoke suppression, water resistance and sound insulation, has extremely high strength, and has wide application prospects in building boards, advertisement display boards, furniture panels and vehicle interiors.

The invention discloses a coated asphalt warm mixing reinforcing agent as well as a preparation method and application thereof, the reinforcing agent takes surfactant modified kapok fiber as a network framework, and a phase change material is coated on the surface of the framework. The preparation method comprises the following steps: heating and melting the phase-change material, and spraying to the surface of the modified kapok fiber to obtain a wrapped product; and crushing and screening the product to obtain the granular reinforcing agent. During application, the additive accounts for 0.3-5% of the mass of asphalt. By virtue of the advantages of environmental friendliness, porosity, good mechanical support and the like of natural kapok fibers, the interfacial compatibility of the natural kapok fibers and asphalt is modified and optimized, the temperature of the composite phase change material is controlled, the mixing and compacting temperature of an asphalt mixture can be reduced, the high-temperature rut resistance and low-temperature crack resistance of the asphalt mixture can be improved, and the dual technical targets of'cost reduction by warm mixing 'and'performance enhancement' are realized; the core technology pain point of a traditional warm mixing agent is solved.

The invention relates to the technical field of preparation of kapok materials, in particular to a production and preparation process of a kapok window, which comprises the following steps: mixing flame-retardant kapok fibers with other materials to obtain a solid-liquid mixture, feeding the solid-liquid mixture into a reaction kettle, and stirring; determining whether the coagulation process of the solid-liquid mixture is qualified or not based on the radial density gradient index of the separated bubbles in the solid-liquid mixture, and adjusting the stirring speed of the reaction kettle to obtain a kapok blank; determining whether the coagulation process of the kapok blank is qualified or not based on the defect distribution index of the surface cracks in the coagulation process of the kapok blank so as to adjust the environment humidity; demolding to obtain a kapok board blank, and curing to obtain a finished product kapok board; after the finished kapok board is sampled, whether the quality of the kapok board is qualified or not is determined based on the comprehensive distribution index of the internal closed holes, and the preset gradient index is optimized; and under the condition that the quality of the kapok board is qualified, the kapok board is cut and assembled, and the kapok window is obtained. The quality stability of the kapok board and the quality stability of the kapok window are improved.

The utility model discloses a fabric with a three-layer fabric structure, and belongs to the field of woven fabric. Comprising a first layer, a second layer and a third layer, the second layer is arranged between the first layer and the third layer in a fold line shape or a wave shape, the upper edge of the fold line shape or the wave shape is connected with the first layer, and the lower edge is connected with the third layer, so that a plurality of mutually independent first filling channels are formed between the first layer and the second layer; a plurality of mutually independent second filling channels are formed between the second layer and the third layer, and the first filling channels and the second filling channels are alternately arranged. The first filling channel and the second filling channel are used for filling kapok fibers, so that the running of the kapok fibers can be reduced, and the problems of caking, caking and the like of products are avoided; meanwhile, the first filling channels and the second filling channels are mutually alternated, so that the filled fabric is smoother; in addition, when the fabric is filled with the kapok fibers, the content of the kapok fibers can reach 100%.

The application discloses a preparation method of kapok / polyester composite aerogel and application thereof and belongs to the technical field of aerogel materials. The preparation method is as follows: first, short kapok fibers are subjected to mechanical grinding treatment to obtain a kapok fiber suspension; then, the kapok fiber suspension is mixed with polyester short fibers with a skin-core structure; and finally, the kapok / polyester composite aerogel is prepared by using silanization modification and freeze-drying treatment, and is placed into an oven for heating to obtain the kapok / polyester composite aerogel. The prepared aerogel shows good hydrophobic and oleophilic properties, can be used in the field of oil-water separation, or used as a filter material, and the absorbed oil can be recycled, so that the aerogel is an adsorbing material with good development prospect.

The invention relates to the technical field of textile, and particularly discloses a preparation method of kapok fiber yarn and application of the kapok fiber yarn in fabric, and the preparation method comprises the steps that kapok fibers are opened and cleaned, and the moisture regain of the kapok fibers is adjusted to 8%-10%; uniformly applying a high-temperature-resistant finishing agent to the surfaces of the fibers through a spraying device, wherein the application amount is 3-5% of the dry weight of the fibers; mixing the treated kapok fibers and cotton fibers according to a mass ratio of 70 / 30 to 90 / 10; carding, 2-3 drawing, roving and spinning procedures are sequentially performed, and spinning is performed at the spindle speed of 16000-20000 rpm; finally, defects are removed through spooling, and finished yarn is obtained. The high-temperature-resistant finishing agent comprises a comb-shaped softener prepared by copolymerization of specific monomers. The kapok yarn prepared by the invention has good spinnability and yarn quality, is suitable for high-quality woven or knitted fabrics, and solves the problems of high end breakage rate and equipment scale deposition caused by thermal decomposition of auxiliaries in high-speed spinning.

This invention relates to the field of ceramic fiber preparation technology, specifically to a hollow aluminosilicate ceramic fiber and its preparation method. The steps are as follows: Kapok fiber is selected as a template, and ethanol is used as a solvent. The kapok fiber is immersed in a mixed solution composed of aluminum nitrate nonahydrate and tetraethyl orthosilicate. After immersion, the kapok fiber is removed, drained, and vacuum-dried to prevent uneven shrinkage and cracking during sintering. Then, sintering is performed at high temperature. The precursor in the kapok fiber tube wall forms aluminosilicate, while the fiber decomposes and ablates at high temperature, leaving hollow aluminosilicate fibers, thus obtaining stable hollow aluminosilicate ceramic fibers. This invention features a simple and stable process, and the prepared fibers have high hollowness, good thermal shock resistance, and excellent thermal insulation performance, with lower thermal conductivity compared to conventional solid aluminosilicate fibers.

The application provides a composite structure spunlace non-woven fabric for a paper diaper surface layer and a preparation method thereof, comprising a first fiber web layer and a second fiber web layer that are spunlace entangled, the first fiber web layer comprises polyester fibers and first modified viscose fibers, the second fiber web layer comprises second modified viscose fibers and kapok fibers, a modifier of the first modified viscose fibers is alkyl silane coupling agent, and a modifier of the second modified viscose fibers is quaternary ammonium salt silane coupling agent; the amount of the alkyl silane coupling agent in the first modified viscose fibers is 10-20 wt% of the viscose fibers, and the amount of the quaternary ammonium salt silane coupling agent in the second modified viscose fibers is 1-5 wt% of the viscose fibers. The non-woven fabric prepared by using the first modified viscose fibers and the polyester fibers as the first fiber layer web and the second modified viscose fibers and the kapok fibers as the second fiber layer web is not prone to reverse seepage, is wettable but not water-absorbing, and can quickly allow water to pass through.

The invention discloses a durable fabric based on pineapple fiber and kapok blending and a preparation method thereof, and relates to the technical field of fabric processing. The preparation method comprises the following steps: mixing pineapple fibers, kapok fibers and cotton fibers, weaving through a series of processes to obtain a blended fabric, activating and epoxidizing the blended fabric to obtain an epoxidized blended fabric, and reacting an epoxy group on the surface of the epoxidized blended fabric with a sulfhydryl group of a sulfhydrylated organic silicon finishing agent to obtain a sulfhydrylated blended fabric; finally, the sulfhydrylation blended fabric is soaked in a finishing agent prepared from a double-bond anti-ultraviolet compound and water, under the action of an initiator, through ultraviolet radiation and reaction of sulfydryl and double bonds, the durable fabric is finally obtained, and the obtained durable fabric has the advantages of being soft, skin-friendly, anti-pilling, capable of absorbing moisture, breathable and the like.

The application provides a head oil permeation prevention flame-retardant fabric and a preparation method thereof. The head oil permeation prevention flame-retardant fabric comprises a surface layer, an inner layer and an intermediate layer filled between the surface layer and the inner layer; the surface layer and the inner layer are respectively woven by surface layer yarns and inner layer yarns, and the surface layer and the inner layer are connected through linking stitches; the surface layer yarns comprise flame-retardant viscose fibers and flame-retardant polyester filaments, the inner layer yarns comprise DTY flame-retardant polyester filaments and FDY flame-retardant polyester filaments, and the intermediate layer comprises flame-retardant viscose fibers and kapok fibers. When the head oil permeation prevention flame-retardant fabric is prepared, hot water washing and air washing are further performed after a woven fabric is obtained through on-machine weaving. Through the above method, the head oil in contact with the surface layer can be guided into the intermediate layer for absorption and storage through the synergistic effect of the material and structure of the surface layer, the intermediate layer and the inner layer, and the head oil can be physically isolated through the inner layer, so that the head oil is guided, absorbed, stored and isolated, and the head oil permeation is effectively prevented while the air permeability of the fabric is ensured.

According to the false core-spun ultra-low-twist super-soft yarn and the preparation method and application thereof, water-soluble vinylon filaments serve as false cores, kapok and cotton fiber blends serve as main body fibers, the twist coefficient is greatly reduced to 100 to the minimum, the fineness can be minimum, 100S (5.8 tex) can be spun, and the false core-spun ultra-low-twist super-soft yarn has the advantages that the false core-spun ultra-low-twist super-soft yarn is obtained; fabric woven by the ultra-low-twist ultra-soft yarn has remarkable advantages in softness, air permeability and moisture absorption performance, can be spun on a traditional spinning frame, and does not need to transform the spinning frame, so that investment on equipment is reduced, the problem of low production efficiency of high-count yarn is solved, and the production cost is reduced. The adopted raw material kapok fiber is short in length, the requirement for the fiber length of conventional spinning low-twist yarn is broken through, the ultra-low-twist super-soft yarn can be produced on ring spinning by using the raw material with short fiber, and the false core yarn can be dissolved by water and has no pollution to the environment due to the fact that the water-soluble vinylon filament is adopted as the false core yarn.

The application provides a filtering material and a preparation method and application thereof, relates to the technical field of filtering materials, and the filtering material comprises a first filter paper layer and a second filter paper layer; the average pore diameter of the first filter paper layer is smaller than that of the second filter paper layer; the first filter paper layer comprises a first fiber component and a reinforcing agent; the fiber component comprises micro-fiber glass cotton, alkali-free short-cut filaments and kapok fiber mercerized pulp; the second filter paper layer comprises a second fiber component and a reinforcing modifier; the second fiber component comprises micro-fiber glass cotton, alkali-free short-cut filaments and chemical fibers; and the reinforcing modifier comprises the reinforcing agent and a waterproof and oil-proof agent. The filtering material has a large oil absorption capacity and a high oil-gas separation efficiency.

The application discloses a kapok-derived one-dimensional hollow carbon-based magnetic composite wave-absorbing material and a preparation method thereof, and relates to the technical field of wave-absorbing materials. The preparation method comprises the following steps: step one, removing wax on the surface of kapok fibers; step two, adding iron chloride hexahydrate and cobalt chloride hexahydrate into a mixed solvent of a part of ethylene glycol and diethylene glycol, dissolving, adding the kapok fibers pretreated in step one, and uniformly dispersing; then, adding anhydrous sodium acetate into the remaining part of the mixed solvent of ethylene glycol and diethylene glycol; mixing the two parts of the solvent, carrying out hydrothermal reaction, cooling after the hydrothermal reaction, performing suction filtration, cleaning, drying, and obtaining iron-cobalt composite kapok fibers; and step three, calcining the iron-cobalt composite kapok fibers in step two under Ar atmosphere protection. The wave-absorbing material is light and efficient, has excellent wave-absorbing performance, the kapok fiber raw material has a wide source and is cheap, and the preparation process of the wave-absorbing material is simple, pollution-free and easy to realize large-scale production.