2211results about "Monocomponent polyesters artificial filament" patented technology

The invention provides a flame-retardant heat-insulating fabric for fire-fighting clothes and a preparation process thereof, and belongs to the technical field of fire-fighting fabrics. The preparation process comprises the following steps: preparing coated modified ammonium polyphosphate; modified expanded perlite; preparing a flame-retardant outer-layer fabric; preparing a heat insulation core layer fabric; preparing an antibacterial inner layer fabric; and bonding. The flame-retardant heat-insulating fabric for the fire-fighting clothes comprises a flame-retardant outer-layer fabric, a heat-insulating core-layer fabric and an antibacterial inner-layer fabric, ammonium polyphosphate is dispersed in deionized water, polyethyleneimine is added under the acidic condition, amino on the polyethyleneimine and ammonia ions of the ammonium polyphosphate are subjected to an ion exchange reaction, and the flame-retardant heat-insulating fabric for the fire-fighting clothes is obtained. According to the flame-retardant outer-layer fabric, ammonium polyphosphate is preliminarily coated, then a hydroxyethylidene diphosphonic acid solution is added for a salt forming reaction, coated modified ammonium polyphosphate with a core-shell structure is prepared, the coated modified ammonium polyphosphate and polyester powder are mixed and granulated, then the flame-retardant outer-layer fabric is prepared, and the flame-retardant property of the flame-retardant outer-layer fabric can be effectively improved.

The invention relates to the technical field of polyester fibers, in particular to a high-strength wear-resistant polyester fiber and a preparation method thereof. The invention aims to solve the problem that the mechanical strength and wear resistance of the existing polyester fiber are difficult to consider at the same time. The preparation method comprises the following steps: carrying out esterification and polycondensation on terephthalic acid, ethylene glycol, hydroxyl-terminated polydimethylsiloxane and isophthalic acid to obtain modified PET; the preparation method comprises the following steps: respectively carrying out oxidation treatment on graphene and a multi-walled carbon nanotube, and then adding polyether amine for grafting; carrying out melt blending with PET slices to obtain nano master batches; carrying out melt blending on the chopped glass fibers and the PET slices to prepare micron master batches; and mixing the modified PET, the nano master batch and the micron master batch, carrying out ultrasonic dispersion, adding an auxiliary agent, and carrying out melt spinning, three-section stretching and three-section heat setting treatment to obtain the high-strength wear-resistant polyester fiber. Through the synergistic effect of the components and the process, the prepared fiber has excellent mechanical properties and wear resistance, and has wide application prospects in the fields of clothing, home textiles, industry and the like.

The invention relates to the field of textile materials, and particularly discloses a graphene enhanced polyester yarn and a preparation method thereof.The preparation method comprises the following steps that silicon dioxide aerogel serves as a porous carrier to be loaded with graphene, and a graphene-porous carrier composite material is prepared; the graphene-porous carrier composite material is subjected to modification treatment through vinyl trimethoxy silane and 3-amino propyl triethoxy silane, and then a modified graphene composite material is prepared; reacting the modified graphene composite material, a styrene monomer, an acrylate monomer and an initiator to prepare modified graphene; mixing the prepared modified graphene with polyester chips, and then carrying out melt spinning to prepare graphene enhanced polyester yarns; the invention further discloses the graphene enhanced polyester yarn prepared by adopting the preparation method. The preparation method has the characteristics that the dispersion of the graphene in the polyester is improved, and the direct interface compatibility of the graphene and the polyester fiber is improved, so that the mechanical property of the polyester yarn is improved.

The invention relates to the technical field of high-performance polyester, in particular to a high-strength low-shrinkage polyester fiber and a preparation method thereof. The defects that existing polyester fibers are poor in strength and shrinkage resistance are overcome. The preparation method comprises the following steps: mixing the modified resin, the modified nano silicon dioxide, the composite antioxidant, the composite nucleating agent and the composite lubricant, and carrying out melt spinning. Wherein the modified resin is prepared from the following raw materials: dimethyl terephthalate, isophthalic acid, ethylene glycol and isosorbide; the modified nano silicon dioxide comprises nano silicon dioxide, KH570 and silver nitrate; the composite antioxidant comprises an antioxidant 1010, an antioxidant 168 and an antioxidant 1222; the composite nucleating agent comprises sodium benzoate and nano montmorillonite; the composite lubricant is prepared from ethylene bis stearamide and pentaerythritol stearate. The prepared polyester fiber is high in strength, high in shrinkage resistance and suitable for manufacturing of outdoor equipment.

The invention relates to the technical field of antibacterial and antifouling fabrics, provides a preparation method of an antibacterial and antifouling fabric, and solves the problem of poor fabric durability caused by single functional component and lack of physical protection in the prior art. The preparation method comprises the following steps: S1, preparing MOFs loaded antibacterial fibers: blending a metal organic framework antibacterial composite nanomaterial and a polymer matrix material, and carrying out melt spinning to prepare the MOFs loaded antibacterial fibers; s2, constructing a self-cleaning functional coating: dispersing the fluorinated nanoparticles and a polymer adhesive in a solvent to prepare a self-cleaning coating solution; s2, performing surface activation treatment on the MOFs-loaded antibacterial fiber obtained in the step S1, soaking the MOFs-loaded antibacterial fiber in the self-cleaning coating liquid, and performing pulling and curing to form a bionic micro-nano structure coating on the surface of the MOFs-loaded antibacterial fiber so as to obtain a functional composite fiber; s3, spinning forming: taking the functional composite fibers obtained in the step S2 as warp yarns and / or weft yarns, and weaving to obtain the antibacterial and antifouling fabric.

The invention discloses a low-strength polyester fully-drawn yarn and a preparation method and application thereof.The preparation method comprises the steps that a polyester melt is sprayed out of a yarn strip through a spinneret orifice with a flat cross section, the yarn strip is cooled and oiled, then the yarn strip makes frictional contact with a brittle damage part with a rough surface layer, the yarn strip enters a pre-interlacer to be treated, drawn and shaped, and the low-strength polyester fully-drawn yarn is obtained. The main network is interlaced; wherein the surface roughness Ra of the rough surface layer is 0.5-1.5, filaments located between the brittle damage part and the pre-interlacing device enter the pre-interlacing device at an included angle alpha, the acute included angle between the filaments entering the pre-interlacing device and the perpendicular normal of the end face, where the filaments enter, of the pre-interlacing device is the included angle alpha, and the included angle alpha is 10-30 degrees; according to the method, the ideal brittle damage effect of the polyester filaments can be achieved without being subjected to multiple treatments such as a high-temperature environment, strong alkali and alcohol, the energy consumption and the cost are low, and the prepared cloth has low tearing strength and is suitable for preparing medical adhesive tape, wiring harness adhesive tape or trademark cloth.

The invention relates to the technical field of soft cotton fabrics, in particular to a high-breathability soft cotton fabric and a preparation method thereof.The preparation method includes the following steps that firstly, spandex filaments serve as core yarns, the core yarns are wrapped with modified polyester yarns to be spun into spandex wrap yarns, the ratio of the spandex filaments to the modified polyester yarns is 2: 2.5, and the linear density of the spandex filaments is 20 D; and the linear density of the modified polyester yarns is 50D. According to the soft cotton fabric, the spandex filaments serve as the core wires, the spandex filaments are subjected to coating improvement through the modified polyester yarn, the 100D / 144F imitated cotton yarn is matched for warp and weft knitting, the obtained soft cotton fabric is improved in the air permeability, softness and elasticity in a coordinated and balanced mode, and the product is excellent in heat resistance, washing resistance and stability.

The invention provides a multifunctional passive cooling optical metamaterial fiber, yarn and fabric and a preparation method thereof. The passive cooling optical metamaterial fiber is composed of high-refractive-index inorganic micro-nano particles and / or a micro-nano functional material and a polymer substrate material. Wherein wavelength / sub-wavelength scale micro-nano particles are uniformly distributed in a substrate material as a random scattering medium to form a random optical metamaterial system, and reflection enhancement of the optical metamaterial fabric in a solar spectrum band is realized by utilizing a multiple Mie resonance collective effect. According to the passive cooling optical metamaterial fiber, a circular structure, a skin-core structure and the like are prepared through melt spinning, high-refractive-index inorganic micro-nano particles are added into a skin layer and used for sunlight band wide spectrum regulation and control, and a micro-nano functional material is added into a core layer, so that multiple functions are effectively achieved.

The invention relates to the technical field of polyester fabrics, in particular to an icy, cool and smooth fabric and a preparation method thereof.Antibacterial modified polyester fibers are prepared through a composite modification technology of nano-zinc oxide and a silane coupling agent KH-560, antibacterial components can form a chemical bonding type load structure on the surfaces of the fibers, and the antibacterial components can form a chemical bonding type load structure on the surfaces of the fibers; meanwhile, the slow-release mechanism of the nano-zinc oxide can avoid direct contact with the skin, so that the antibacterial fiber has both safety and durability; secondly, the cool-feeling modified polyester fiber realizes a dual cooling mechanism through a mint essential oil microencapsulation technology and high-thermal-conductivity mineral compounding, a microcapsule slowly releases mint essential oil to provide a contact cool feeling, aluminum nitride powder and jade powder construct a rapid heat conduction channel, and the cool feeling effect can last for a long time; and finally, a softening agent prepared by compounding hydroxyl-terminated silicone oil and amino silicone oil is adopted, a low-surface-energy lubricating layer is formed on the surface of the fiber through a molecular chain directional arrangement technology, and the fabric is endowed with a silky smooth touch feeling.

The invention relates to the technical field of polyester fibers, and discloses a preparation method of antibacterial modified polyester hollow fibers, which comprises the following steps: by taking nitrilotriacetic acid, thionyl chloride, epoxy chloropropane, eugenol and the like as raw materials, carrying out acylating chlorination reaction, quaternization reaction and esterification reaction to obtain eugenol epoxy quaternary ammonium salt. The preparation method comprises the following steps: carrying out ring-opening reaction on carboxyl groups in graphene oxide and epoxy groups in eugenol epoxy quaternary ammonium salt to obtain modified graphene, uniformly mixing the modified graphene with polyethylene glycol terephthalate, and carrying out a series of steps to finally obtain the antibacterial modified polyester hollow fiber. Eugenol and quaternary ammonium salt are utilized to improve the antibacterial property of the polyester hollow fiber, and graphene is utilized to improve the mechanical property of the polyester hollow fiber. The polyester hollow fiber prepared by the invention has excellent mechanical properties and antibacterial properties.

The invention relates to the technical field of high-performance polyester fibers, particularly belongs to the patent classification number D01F6 / 00, and discloses a high-moisture-permeability polyester fiber and a preparation method thereof. Comprising the following steps: carrying out hydrothermal reaction on magnesium nitrate hexahydrate and aluminum nitrate nonahydrate to prepare layered double hydroxide nanosheets; then, sodium alginate is prepared into a solution, and the solution is cross-linked with calcium chloride to obtain alginic acid aerogel powder; then, carrying out ultrasonic oscillation dispersion on the two substances in deionized water, and cooling and drying to obtain composite aerogel; then, the composite aerogel and polyethylene glycol 4000 are subjected to melt blending and granulation in a double-screw extruder, and functional master batches are obtained; and finally, mixing the functional master batch with polyethylene glycol terephthalate slices, performing melt spinning at a specific spinning temperature and speed, and performing cooling forming and drafting to obtain the high-moisture-permeability polyester fiber. According to the method, through material compounding and process control, the moisture permeability of the polyester fiber is effectively improved, and the method has a good application prospect in the textile field.

The present invention relates of a biodegradable and hydrophobic polylactic acid (PLA) non-woven material and a process for manufacturing thereof, said PLA non-woven material comprising a non-woven fabric for personal protective equipment, and a non-woven fabric for the three layer surgical mask; said PLA non-woven material comprising a layer of nanofiber membrane and a layer of biodegradable spunbond fabric which could fulfil the international biodegradation standard EN13432. Said non-woven fabric for the PPE has at least 45N breaking force, at least 15% elongation, and having passed level 3 fluid resistance test according to AATCC 42 and AATCC 127.

The invention relates to the technical field of fabrics, in particular to a moisture absorption and sweat releasing fabric and a preparation process thereof.The preparation process includes the following steps that raw materials including, by weight, 35-40 parts of modified polyester silk, 20-25 parts of functional yarn and 8-12 parts of polyester fiber are weighed; a preparation method of the modified polyester yarn comprises the following steps: melting, blending and extruding polyester resin and a modifier according to a weight ratio of 100: 5; weaving the modified polyester yarns, the functional yarns and the polyester fibers into a knitted fabric body by using a circular knitting machine; setting the knitted fabric body at a high temperature of 115 DEG C for 50 seconds, and obtaining the moisture-absorbing and sweat-releasing fabric after setting is finished. According to the moisture absorption and sweat releasing fabric, the modified polyester yarn, the functional yarn and the polyester fiber are woven into the knitted fabric through the circular knitting machine, the modified polyester yarn is improved and optimized by matching polyester resin with the modifier, and the moisture absorption and sweat releasing performance, the elasticity and the wear resistance of the polyester yarn are enhanced through mutual matching and mutual assistance of the raw materials.

The invention discloses an aerogel-based polyester fiber and a preparation method thereof, and relates to the technical field of fiber materials, the aerogel-based polyester fiber comprises the following raw materials by weight: 900-1200 parts of polyester chips, 80-160 parts of functional master batch, 3-8 parts of a hydrophobing agent, 2-6 parts of a heat stabilizer, 1-5 parts of an antioxidant, and 0.5-3 parts of an antistatic synergist; the preparation is performed based on the raw materials. According to the aerogel-based polyester fiber and the preparation method thereof, the functional master batch is introduced into a polyester system, and the functional master batch contains the polyester carrier and the modified silicon dioxide aerogel, so that the problems of poor dispersity and weak interface bonding force when the aerogel is directly added are solved, and the fiber can be used for preparing the aerogel-based polyester fiber while maintaining the mechanical properties of conventional polyester. The multifunctional effects of keeping warm, insulating heat, being light, hydrophobic, antistatic and the like are achieved, so that the application range of the polyester fiber in the fields of clothing, outdoor and functional materials is expanded.

The invention belongs to the technical field of high polymer materials, and particularly relates to a high-strength papermaking forming net fiber. Comprising the following raw materials in parts by weight: 75-90 parts of polyethylene glycol terephthalate, 5-15 parts of polybutylene terephthalate, 3-10 parts of a modified fiber filler, 2-5 parts of modified graphene, 2-8 parts of silicon dioxide, 0.5-2 parts of a silane coupling agent KH-560, 1-3 parts of an anti-hydrolysis agent, 0.5-1.5 parts of an antioxidant and 0.3-1 part of a lubricant. Wherein the modified fiber filler is prepared by sequentially carrying out modification processes such as silane coupling agent, citric acid-glycerol esterification, iron bismuth oxide loading and the like on glass fibers; the modified graphene is prepared by introducing dopamine, cerium ions and glycidyl methacrylate for modification. The mechanical strength, the hydrolysis resistance and the wear resistance of the fiber are remarkably improved through the synergistic effect of all the components and the melt spinning-multi-stage stretching process, and the fiber is particularly suitable for a forming net of a high-speed paper machine.

The invention discloses a sixteen-hole multifunctional polyester staple fiber and a preparation method thereof, and relates to the technical field of functional fibers. Sodium alginate is used as a skin layer, polyethylene glycol terephthalate is used as a core layer, functional layering is achieved through skin-core compounding, and the interface bonding force between sodium alginate and polyethylene glycol terephthalate is enhanced through glutaraldehyde; in the melting processing process of polyethylene glycol terephthalate, a chain extender is used for reducing the melting point of the polyethylene glycol terephthalate so as to reduce the pyrolysis risk of sodium alginate, meanwhile, a low-polarity lubricant is used for grafting zirconium carbide so as to balance the lubrication and enhancement functions and realize far infrared and antistatic properties, and then an aniline monomer is initiated to polymerize on the surface of zirconium carbide so as to prepare the far infrared anti-static polyethylene glycol terephthalate composite material. Seaweed-carbon can generate far infrared radiation and negative ions, and zirconium carbide can be used as an electron acceptor to enhance the carrier mobility, so that the far infrared and antistatic properties of the fiber are enhanced.

The invention discloses a medical washable high-temperature-resistant modified polyester fiber fabric and a preparation method thereof, and relates to the technical field of fabrics. The medical washable high-temperature-resistant modified polyester fiber fabric prepared by the invention is obtained by blending, spinning and weaving modified polyester and modified mica and activating with sodium hypochlorite; the modified polyester is obtained by grafting organic silicon modified polyester with n-dodecanethiol and then reacting with bromooctylhydantoin; the modified mica is prepared by polymerizing diethyl phosphite and bisphenol S on the surface of the pretreated mica, grafting a vinyl monomer and then reducing; the vinyl monomer is obtained by carrying out a reaction on 1-allyl-3-cyano-6-hydroxy-4-methyl-2-pyridone and an azo salt, and the vinyl monomer is obtained by carrying out a reaction on 1-allyl-3-cyano-6-hydroxy-4-methyl-2-pyridone and an azo salt; the medical washable high-temperature-resistant modified polyester fiber fabric prepared by the invention has good antibacterial, anti-aging and flame-retardant properties.

The invention provides a superfine denier profiled polyester staple fiber and a preparation method thereof.The preparation method includes the steps of raw material pretreatment, melt spinning, nascent filament treatment, heat setting and curling, oiling and cutting off and the like, polyester chips have high intrinsic viscosity and melting point, and under the action of six-zone temperature control, a high-hole-density spinneret plate and a high draft multiple, the polyester chips are subjected to melt spinning, so that the polyester chips are prepared into the superfine denier profiled polyester staple fiber. The superfine, special-shaped and hollow polyester staple fibers are prepared. The obtained polyester staple fiber has good breaking strength, rebound resilience and a low-defect structure, the bulkiness, flexibility and structural consistency of the fiber are remarkably improved, the environment and process limitation of a traditional sea-island fiber alkali stripping method is broken through, and the polyester staple fiber is suitable for the fields of high-end filling, plush imitation, non-woven materials and the like.

The invention discloses an efficient polyester color master batch and a preparation method thereof, and relates to the technical field of polyester color master batches. The high-efficiency polyester color master batch is prepared from the following raw materials in parts by mass: 40-70 parts of a polyamide carrier, 20-50 parts of a coloring agent, 5-15 parts of a dispersing agent, 1-5 parts of a lubricating agent and 0.5-3 parts of an antioxidant. The special antioxidant specially designed for a polyamide carrier is adopted, the compatibility with the carrier is improved based on the principle of similar dissolves, the problem that a traditional antioxidant is uneven in dispersion to form an anti-oxidation blind area is fundamentally solved, meanwhile, volatilization and migration in the processing process are inhibited by means of high thermal stability of the molecular structure of the antioxidant, and the anti-oxidation performance of the carrier is improved. The color master batch endows a polyester product with a longer anti-oxidation protection effect, and the problems of yellowing, chromatic aberration and the like caused by oxidation in the processing and using processes of the product can be effectively reduced.

The invention relates to the technical field of high-performance polyester fibers, and discloses a dry skin-friendly fiber fabric, a preparation method thereof and application of the dry skin-friendly fiber fabric in underwear. The preparation method of the dry and comfortable skin-friendly fiber fabric comprises the following steps: carrying out reaction on terephthalic acid, ethylene glycol and an antibacterial modified diamide diol monomer to obtain modified polyester; the modified polyester and the polyester master batch are mixed and spun, and the modified profiled polyester fiber is obtained; dipping the modified profiled polyester fiber in a finishing liquid containing a biopolymer finishing agent to obtain the high-performance polyester fiber, blending and knitting high-performance polyester fibers, cotton fibers and mulberry silk fibers to obtain a dry skin-friendly fiber fabric; the dry and comfortable skin-friendly fiber fabric has excellent antibacterial performance, moisture absorption performance and skin-friendly performance, the skin can be kept dry and comfortable, safe and comfortable wearing experience is provided for a wearer, and the dry and comfortable skin-friendly fiber fabric can be used for underwear and other underwear materials.

The invention discloses an antistatic polyester fiber and a preparation method thereof, and relates to the field of fibers. When the antistatic polyester fiber is prepared, N, N-dimethylethanolamine reacts with allyl chloride, and then dichloro phthalocyanine silicon is grafted to obtain modified silicon phthalocyanine; polymerizing terephthalic acid, itaconic acid and ethylene glycol, and reacting with fluorescein isothiocyanate and modified silicon phthalocyanine in sequence to obtain modified polyester chips; the preparation method comprises the following steps: reacting phosphonitrilic chloride trimer with 3-hydroxy-5-nitropyridazine, and reducing to obtain a flame retardant; and carrying out melt spinning on the modified polyester chips and a flame retardant, and reacting to obtain the antistatic polyester fiber. The antistatic polyester fiber prepared by the invention has excellent antistatic property, antibacterial property, flame retardance and mechanical property.

The purpose of the present invention is to provide: a low-shrinkage fiber; a method for producing the low-shrinkage fiber; an air-blended yarn comprising the polytrimethylene terephthalate fiber; and a fabric comprising the air-blended yarn. The low-shrinkage fiber is substantially composed of polytrimethylene terephthalate, and can be used to produce a precursor for a fabric, which has a soft texture and a low shrinkage rate due to heat. The present invention is characterized in that 90 mol% or more of polytrimethylene terephthalate fibers are composed of trimethylene terephthalate repeating units, the boiling water shrinkage of the polytrimethylene terephthalate fibers is 5% or less, and the elastic modulus of the polytrimethylene terephthalate fibers at an elongation of 20% is 5 cN / dtex or less.

The invention relates to the technical field of polyester, in particular to a flame-retardant and antibacterial dual-function fiber and a preparation method thereof. The flame-retardant antibacterial fiber overcomes the defects that existing fibers are poor in flame retardance and antibacterial property. According to the invention, PET resin, a composite modified auxiliary agent master batch and a composite flexibilizer are used as raw materials, and the bifunctional fiber is prepared through melting and spinning; wherein the composite modified additive master batch is prepared from the following raw materials: PET (Polyethylene Terephthalate) resin, aluminum diethylphosphinate, modified halloysite nanotubes, modified zinc oxide nanowires and zinc borate; the modified halloysite nanotube is prepared from the following raw materials: a halloysite nanotube, KH560 and phosphoric acid; the modified zinc oxide nanowire is prepared from the following raw materials: zinc nitrate hexahydrate, hexamethylenetetramine and sodium hypophosphite. By controlling the dosage of each component and processing technological parameters, the finally prepared difunctional fiber has good flame retardance and good antibacterial property, and is suitable for manufacturing curtains.

The polyester resin according to the present invention is high purity and contains recycled bis(2-hydroxyethyl) terephthalate containing a controlled amount of diethylene glycol ester below a certain level, and therefore has heat resistance and quality comparable to that of the original resin, despite being a polyester resin regenerated by chemical recycling. In particular, the polyester fiber containing the polyester resin according to the present invention has excellent strength, elongation, and processability, and can therefore be used as an environmentally friendly textile product.

The invention relates to a long-acting antibacterial polyester fiber and a preparation method thereof. The preparation method of the long-acting antibacterial polyester fiber comprises the following steps: carrying out melt blending reaction on a polyepoxy polymer and an alkyl-terminated guanidine salt polymer antibacterial agent to obtain an epoxy modified guanidine salt polymer; then carrying out melt blending with low-melting-point polyester to obtain antibacterial polyester master batches; and finally, blending with polyester chips, melting and spinning to obtain the long-acting antibacterial polyester fiber. The antibacterial polyester master batch disclosed by the invention has the characteristics that degradation of a polyester matrix in spinning processing is inhibited, an antibacterial agent is chemically bonded with the polyester matrix, and the antibacterial agent is enriched on the surface of the antibacterial polyester fiber. When the dosage of the antibacterial agent is low, the long-acting antibacterial polyester fiber shows excellent antibacterial performance, and meanwhile, good mechanical properties of the long-acting antibacterial polyester fiber are kept.

The invention provides a heat-storage warm-keeping down-locking layered fabric and a down jacket. The heat-storage warm-keeping down-locking layered fabric sequentially comprises a skin-friendly layer, a liner cloth layer and a heat-storage warm-keeping down-locking layer from inside to outside, and the heat-storage warm-keeping down-locking layer is prepared by napping a heat-storage warm-keeping fabric; yarns for weaving the heat-storage and warm-keeping fabric are heat-storage and warm-keeping fiber / hollow polyester fiber / wool fiber blended yarns; the heat-storage warm-keeping fiber comprises polyester and a heat storage agent, and the preparation method of the heat storage agent comprises the following steps: firstly loading a polyethylene glycol / nano molybdenum disulfide composite material by adopting porous silicon dioxide microspheres, then mixing with a mixture containing silica sol and nano metal silver, and performing vacuum drying to obtain the heat storage agent. The heat-storage warm-keeping down-locking layered fabric has excellent heat-storage warm-keeping effects, can lock down, has a good antibacterial effect, and has a very good application effect when being used as a lining fabric of a down jacket.

The invention discloses a bio-based PEF fiber with a cool feeling and a quick-drying function as well as a preparation method and application thereof, and belongs to the field of textile functional materials. The bio-based PEF fiber with the cool feeling and the quick-drying function is prepared by spinning bio-based poly (ethylene 2, 5-furandicarboxylate) with an epoxy group and a sulfonic acid group; the bio-based PEF fiber has a profiled fiber cross section and / or a hollow structure. The bio-based poly (ethylene 2, 5-furandicarboxylate) with an epoxy group and a sulfonic acid group is adopted, the hydrophilicity is improved, and the PEF fiber with the special-shaped section and / or the hollow structure is constructed to achieve the cool feeling, so that the moisture absorption and quick drying effects of the fiber are improved. The heat dissipation effect of the fiber can be improved, the moisture absorption and quick-drying effect of the fiber can be improved, and therefore dual improvement of the cool feeling and the quick-drying function is achieved. When the PEF fiber with the cool feeling and the quick-drying function is prepared, the mechanical property, the biodegradability and the like can be considered.

The invention discloses a method for preparing antibacterial and antistatic polyester fibers by regenerating waste polyester, belongs to the technical field of polyester fiber processing, and is used for solving the technical problem that the antistatic performance, moisture absorption performance and antibacterial performance of polyester fibers in the prior art need to be further improved. The method specifically comprises the following steps: crushing waste polyester, performing alcoholysis to prepare an alcoholysis extract, mixing the alcoholysis extract, polytetrahydrofuran ether glycol, 1, 4-butylene glycol and a catalyst under the protection of inert gas, and performing reaction to obtain the polytetrahydrofuran ether glycol / 1, 4-butylene glycol / polytetrahydrofuran ether glycol / 1, 4-butylene glycol / polytetrahydrofuran ether glycol / 1, 4-butylene glycol composite material. According to the invention, the olefin modified silver-loaded montmorillonite and hydroxyethyl methylacrylate reinforced copolyester polyester fiber with a flexible polyether block structure is subjected to padding modification through the reinforcing modifier, so that the breaking strength and the antistatic property of the polyester fiber are effectively improved, and the moisture absorption property and the antibacterial property of the polyester fiber are also improved.

The invention discloses a fused electrostatic spinning polymer / molecular sieve blended composite fiber as well as a preparation method and application thereof. The melt electrostatic spinning polymer / molecular sieve blended composite fiber is prepared from the following raw materials in parts by weight: 25-90 parts of a thermoplastic polymer matrix, 5-75 parts of a molecular sieve, 1-10 parts of a compatibilizer and 0-5 parts of a conductive additive. According to the polymer / molecular sieve blended composite fiber material and the preparation technology, no solvent participates in the whole process, and the green manufacturing requirement is met. Moreover, in the fiber material, the molecular sieves can be uniformly distributed on the superfine polymer fibers, scanning electron microscope pictures show that the molecular sieves are uniformly embedded into the material, no aggregate larger than 10 microns exists, and the fiber material has a hierarchical pore structure, a high specific surface area and excellent mechanical properties. Therefore, the fiber material can be applied to the fields of air filtration, catalytic reaction, drying purification, adsorption separation and the like.

The invention provides a synthesis method of bio-based poly (ethylene 2, 5-furandicarboxylate) (poly (ethylene 2, 5-furandicarboxylate) for short) and performance application of the bio-based poly (ethylene 2, 5-furandicarboxylate). According to the method, 2, 5-furandicarboxylic acid (FDCA) derived from renewable resources and ethylene glycol (EG) are used as main raw materials, and the high-molecular-weight PEF is prepared through microwave-assisted esterification-polycondensation reaction under the action of a metal catalyst. The prepared PEF has excellent thermal mechanical property and gas barrier property, the glass transition temperature is about 58.6 DEG C, the melting temperature is about 187.4 DEG C, and the thermal decomposition 18% weight loss temperature exceeds 400 DEG C. The PEF material can be biologically degraded under the industrial composting condition, and the degradation speed is higher compared with that of traditional petroleum-based PET polyester. The PEF provided by the invention is suitable for the fields of food packaging films, beverage bottles and fiber materials, has the advantages of biodegradability, heat resistance stability and high barrier property, can partially replace polyethylene glycol terephthalate (PET) and other petrochemical plastics, and meets the requirements of sustainable development.