92results about "Monocomponent polyamides artificial filament" patented technology

The present application relates to the technical field of functional fabric, and particularly relates to an antibacterial skin-friendly functional fabric and a preparation method thereof.The antibacterial skin-friendly functional fabric with both skin-friendliness and antibacterial property can be obtained by the cooperation of components, the adoption of specific proportions, and the process control of the preparation method, such as the parameters of mixing and spinning, and is suitable for being used as raw material of clothes or home textile products, especially for products with antibacterial requirements such as medical protective clothing, and has a wide application prospect.The antibacterial skin-friendly functional fabric provided by the present application not only has good skin-friendliness, but also has good antibacterial property, and can be used as clothes fabric to make clothes which are comfortable, beautiful, light and nimble.The preparation method provided by the present application has simple steps, good safety, high stability, low cost, and is convenient to operate and suitable for large-scale industrial production.

The application belongs to the technical field of lithium ion batteries, and discloses a poly-m-phenylene isophthalamide-based electrostatic spinning flame-retardant separator and application thereof. The m-phenylene isophthalamide-based electrostatic spinning separator, namely PMIA-based electrostatic spinning separator, is prepared by mixing modified PZS microspheres, PMIA and an organic solvent, and then adopting an electrostatic spinning method. The modified PZS microspheres are prepared by in-situ growth of an inorganic layer SiO2 on the surface of polyphosphazene PZS microspheres with flame-retardant properties. The polyphosphazene PZS microspheres are prepared by a polymerization reaction between tannic acid and hexachlorocyclotriphosphazene. The spinning separator prepared by the application has very excellent porosity, liquid absorption rate and ionic conductivity, and good thermal stability and flame retardancy.

A bio-nylon fiber containing an antioxidant active ingredient and a method for preparing the same are provided. [Solution] The method for preparing bio-nylon fiber containing antioxidant active ingredients includes the steps of preparing buckwheat leaf extract, preparing filipendula extract, preparing a porous base carrier, amination treatment, modification treatment, loading, preparing a functional masterbatch, and spinning. [Effects] The method for preparing bio-nylon fiber containing antioxidant active ingredients of the present invention can improve the binding performance of the plant extract active ingredients with antioxidant function with nylon fiber, effectively avoiding the problem of the plant extract active ingredients becoming less stable and easily inactivated during the acid dyeing process, effectively avoiding the problem of the plant extract active ingredients affecting the dyeing effect and causing uneven dyeing, and further improving the wash resistance and physical properties of nylon fiber.

This invention relates to a renewable polyamide 56 fiber, its preparation method, and its application. The raw materials for its production include at least a tackifying renewable polyamide 56 resin. The relative viscosity of the tackifying renewable polyamide 56 resin is 2.4-2.9, and its crystallization temperature is 180-210℃. This invention uses a tackifying renewable polyamide 56 resin obtained by tackifying a recycled polyamide 56 resin produced from recycled polyamide waste fibers and waste fabrics as a raw material. This not only enables the production of fibers with mechanical and dyeing properties comparable to conventional polyamide 56 fibers but also achieves the goal of recycling polyamide waste.

This invention relates to polyamide flat yarns, polyamide container bags, and their preparation methods. The raw materials for production include at least polyamide resin, specifically one or more of polyamide 5X, polyamide 6X, polyamide 6, polyamide 5T / 5X, polyamide 5T / 66, and polyamide 6T / 66. X is selected from one or more of bisaccharide, sebacic acid, undecanoic acid, dodecanoic acid, tridecanoic acid, tetradecanoic acid, pentadecanoic acid, hexadecanoic acid, heptadecanoic acid, and octadecanoic acid. This invention enables the preparation of polyamide flat yarns with higher tensile strength using polyamide resin as a raw material, thereby obtaining polyamide container bags with better tensile strength, dimensional stability, heat resistance, low-temperature resistance, and abrasion resistance.

The application relates to the technical field of high polymer materials, in particular to an anti-aging fastening material and a preparation process thereof. The application comprises the following steps: preparation of aluminum-doped zinc oxide, modification of the aluminum-doped zinc oxide by tannic acid, modification of nylon fibers by ferulic acid, and preparation of modified nylon masterbatch for fastening. In the application, the groups of tannic acid and the aluminum ions and zinc ions of the aluminum-doped zinc oxide are simultaneously chelated and dehydrated and condensed through the heat energy of the reflux reaction, so that a five-membered ring chelate is formed, a dense coating layer is formed on the surface, the composition of the coating layer is simple, but the chemical bond is very stable, the ultraviolet light stability of the aluminum-doped zinc oxide is enhanced, the coating layer can also produce hydrogen bond / π-π interaction with the nylon amide bond, the interface bonding strength is improved, the particle size is kept at the level without filter pressure fluctuation in the spinning process, and the volume resistivity of the nylon fiber is reduced.

This invention provides a highly durable and functional recycled all-aromatic polyamide fiber, and a method for producing the same. [Solution] A recovered fiber structure containing meta-type all-aromatic polyamide fibers, para-type all-aromatic polyamide fibers, and conductive fibers is dissolved in an amide-based solvent. In this solution, 10 to 25% by mass of meta-type all-aromatic polyamide polymer is dissolved to produce an all-aromatic polyamide dope. This dope is then used for spinning to obtain regenerated all-aromatic polyamide fibers.

The application discloses a colored porous nylon precursor processing method, which comprises the following steps: taking nylon 6 chips as a base body, compounding special color master batches, light-resistant agents, inorganic dispersion stabilizers and porous forming additives, feeding under nitrogen protection and drying, six-section segmental melting homogenization, constant-temperature transportation of biphenyl, porous spinning forming, gradient side-blowing cooling, double-oil-nozzle low-tension uniform oiling, pre-networking and precise winding, and stable switching forming, so that colored porous nylon precursors are prepared. The application effectively solves the technical problems of uneven coloring, poor light aging resistance, easy generation of broken ends during the spinning process, unstable pore distribution, color difference and broken yarn during the post-elasticity adding and the like of traditional colored porous nylon, and the prepared colored porous nylon precursors have the advantages of uniform and consistent pore number, full coloring without color difference, excellent light resistance and aging resistance, high strength retention rate, stable spinning forming, strong post-processing adaptability and the like.

This invention provides a polyamide resin composition that serves as a raw material for bio-based polyamide fibers, exhibiting excellent quality in terms of color tone and strength, as well as superior high-order passability. [Solution] A polyamide resin composition comprising a diamine component and sebacic acid, wherein the content of metal sulfate salts, which are inorganic particulate components, is 1000 ppm or less, and the bio-based carbon concentration is 50% or more.

This invention discloses an ultra-long service life concrete and its preparation method, belonging to the field of building materials technology. The ultra-long service life concrete, by weight, comprises the following raw materials: 800-1000 parts of cementitious material, 1400-1600 parts of aggregate, 10.5-19 parts of admixture, 20-30 parts of toughening fiber, 0-20 parts of steel fiber, 6-11 parts of PVA fiber, and 160-200 parts of water; the toughening fiber is selected from fibers with a shrinkage rate of 4%-10% at 55-75℃. The concrete of this invention has a service life ≥120 years, a compressive strength ≥80 MPa, withstands ≥500 wet-dry cycles, exhibits excellent crack resistance, corrosion resistance, and impermeability, has widely available components, a simple process, and can be industrially produced. It is suitable for major infrastructure projects and can significantly reduce maintenance and reinforcement costs.

The application provides a low-melting-point polyamide fiber and a preparation method thereof. The fiber is prepared by melt blending, spinning and forming of polyamide chip, 1-5wt% of a metal ion compound, 0.5-2wt% of nanoparticles and a stabilizer; the metal ion coordinates with the polyamide amide group to destroy the hydrogen bond network, the nanoparticles regulate the crystallization behavior, and the synergistic effect reduces the melting point of the fiber to 160-180 DEG C, while the strength is greater than 4 cN / dtex. The polyamide fiber has stable performance, low melting point and excellent mechanical properties, the process is simple and controllable, the problems of high melting point of traditional polyamide fiber, mechanical property reduction of existing modification method or complex process are solved, and the polyamide fiber is suitable for low-temperature processing scenes such as textiles, clothes and medical supplies, and has industrial application value.

The present application provides a kind of textile fiber coated with essential oil and a preparation method thereof, relating to the technical field of textile fiber.The textile fiber coated with essential oil of the present application, the body of textile fiber is distributed with at least one closed hollow structure in the position close to surface, the closed hollow structure is coated with essential oil, and the depth of closed hollow structure along the cross section of textile fiber is not less than 1 / 20 of the diameter of textile fiber.The present application can achieve good coating performance of textile fiber on essential oil without using microcapsules coated with essential oil, and realize long-acting release of essential oil.

The application provides application of fiber aramid in the field of ultrahigh pressure protection and a related material manufacturing method, relates to the technical field of fiber aramid materials, and is characterized by comprising the following steps: step 1, preparing terephthaloyl chloride and benzene diammonium, and precisely weighing and polymerizing in a methylpyrrolidone solvent to form a solution; step 2, introducing the solution in step 1 into a coagulation tank to perform coagulation bath process treatment; step 3, sending the raw material after the coagulation treatment in step 2 to a stretching and heating device to perform shaping work and then to perform water washing, cooling and drying; step 4, performing surface modification on the material in step 3, completing film coating, cooling to room temperature and then sending to a cleaning device to perform surface cleaning treatment; and step 5, collecting and arranging the material and weaving according to subsequent product production requirements. The application has the advantages that the stability of the material as a whole is improved through the surface film coating and modification process, the overall processing can be further facilitated through cooperation with lubricating liquid, and the material can be prevented from being damaged.

A filament for an oral care implement has a longitudinal axis and a multi-edged cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis, the multi-edged cross-sectional area having at least 18 projections and at least 18 grooves, the projections and grooves being arranged in an alternating manner. The filament is made from polyamide (PA), preferably from PA6, PA6.10, PA6.12, PA10.10, or PA12.

The present invention provides recycled nylon 66 fibers that have the same raw yarn properties and high-order passage properties as virgin nylon 66 fibers and that make it possible to obtain high-quality woven / knit articles that have excellent color tone. The present invention relates to nylon 66 fibers that have a color tone YI value of no more than 30 and, as obtained by GPC, a weight average molecular weight (Mw) / number average molecular weight (Mn) distribution ratio and z average molecular weight (Mz) / weight average molecular weight (Mw) distribution ratio of no more than 4.5 and no more than 2.5, respectively.

Provided are electroconductive polyamide composite fibers having less reduction in strength compared to conductive fibers containing non-modified resins and having preferable electroconductivity and preferable staining properties with not only cationic dyes but also acid dyes.　Electroconductive polyamide composite fibers are characterized in that the composite fibers comprise a non-electroconductive layer formed with a terminal-modified polyamide resin represented by formula 1 and having a sulfonate salt-containing triazine derivative substituting some of hydrogen atoms in terminal amino groups of a polyamide resin and an electroconductive layer formed with a fiber-forming resin containing an electroconductive substance, and the content of the sulfonate salt-containing triazine derivative is 0.4 equivalents-1.5 equivalents inclusive relative to the amount of terminal amino group of the polyamide resin. (In the formula, PA represents polyamide; R1 represents a phenolic hydroxy group such as a phenoxy group, a cresoxy group, a xylenoxy group or a naphthoxy group, -NR2R3-SO3X or polyamide; R2 represents a hydrogen atom or a methyl group; R3 represents an aliphatic linear substituent such as an ethylene group or an n-propylene group, or an aromatic substituent such as a phenylene group or a methyl-phenylene group; and X represents a metal cation such as sodium, magnesium, manganese or lithium ion or an organic cation such as tert-butyl-ammonium, benzyltrimethylammonium or p-methylphenylammonium ion.)

This invention relates to the field of textile fabric technology, specifically a lightweight, high-count, high-density fabric and its preparation method. The invention involves a copolymerization reaction of potassium propyl 3-methyl methacrylate, a double-bond-terminated flame retardant, modified triphosphazene, glycidyl methacrylate, and azobisisobutyronitrile to obtain an antistatic flame retardant. The antistatic flame retardant and amino-terminated hyperbranched polyamide are pre-melted and blended, and then nylon 6 is added. The mixture is then melt-spun, drawn, and cooled to obtain modified nylon fibers. These modified nylon fibers are used as the core yarn, and an outer blended yarn is added. The resulting fabric is produced through a compact Sirosfil spinning process, twisting, and plain weave. The finished fabric obtained by this invention possesses excellent flame retardancy, antistatic properties, and toughness, thus having broad application prospects in the field of textile fabric technology.

The application provides a copper ion doped carbon nanotube composite material and a preparation method and application thereof, and belongs to the technical field of functional materials. In the composite material, copper ions are doped in the carbon nanotube skeleton in an atomic dispersion mode or a nano cluster form, the content of the copper ions in the composite material is 0.1-5wt%, the conductivity of the composite material is greater than or equal to 1.0*10 5 S / m, and the bacteriostatic rate on escherichia coli and staphylococcus aureus is greater than or equal to 98.5%. The composite material has excellent conductivity and good antibacterial property, good dispersibility in polymers such as PA6, and is not easy to agglomerate, and has good spinning performance.

This invention belongs to the field of functional textile fabric technology, specifically disclosing a cooling-feeling sun-protective and UV-resistant fabric and its manufacturing process. The fabric has a three-layer composite structure, comprising, from top to bottom: a first cooling layer, a middle sun-protective layer, and a second cooling layer. The first and second cooling layers are both woven from nylon filament cooling yarns; the middle sun-protective layer is composed of black yarn spun from black masterbatch containing nano-titanium dioxide. This invention also provides the manufacturing process of the fabric, including yarn preparation, dyeing, using a splicing structure and high-density weaving, and finishing steps. This invention achieves permanent UV protection through solution-dyed black yarn, high-contact cooling sensation through nylon cooling yarn, and enhances physical sun protection through ultra-high-density weaving to create a micro-wrinkle texture. It requires no coating or film, and has advantages such as permanent sun protection, cooling comfort, environmental friendliness, and durability. It can be widely used in sun umbrellas, outdoor clothing, and other fields.

A regenerated nylon 66 fiber characterized by containing 5% by weight or more of regenerated nylon 66, having a total fineness of 110-2100 dtex, a strength of 7.6-10.0 cN / dtex, and an elongation of 15.0-35.0%. A material, regenerated nylon 66 fiber, having high strength and good hair quality is provided.

The application discloses a preparation method of superfine denier electromagnetic shielding functional chinlon and a product thereof. The chinlon is prepared by mixing 2-7% electromagnetic shielding functional chinlon master batch containing Fe3O4 nanoparticles and 93-98% pure chinlon chips, and then performing drying, melt extrusion, spinning cooling, oiling treatment, drafting setting and winding silk collection. In the preparation process, key parameters such as spinning temperature, filter mesh size, cooling parameter and drafting multiple are optimized, so that the problems of superfine denier fiber spinning breakage, product adhesion and uneven dispersion under high master batch content are solved. The chinlon monofilament fineness obtained by the application is 0.2-0.5 dtex, the breaking strength is greater than or equal to 3.0 cN / dtex, the electromagnetic shielding effectiveness reaches 40 dB in a frequency range of 2000 MHz, the thermal stability is better than that of pure chinlon, and the application is suitable for high-end application scenes such as high-grade clothes, home textiles, electronic protection and filtering materials.

In this invention, tire grade oiled and unoiled nylon 6.6 drawn and undrawn yarns are converted into recycled nylon 6.6 pellets. The recycled nylon 6.6 pellets and virgin nylon 6.6 pellets are then used in different ratios to produce tire grade regenerated nylon 6.6 yarn.

This invention discloses a highly moisture-wicking clothing fabric and its preparation method in the field of fabric technology. The clothing fabric is a double-layer fabric. The upper layer is made of a blended yarn of polypropylene fiber and bamboo fiber, and the lower layer is made of mica cooling fiber. The mica cooling fiber is prepared by using mica powder, polystyrene, lignin, organic solvent, and dispersant as raw materials to prepare a functional dispersion. The functional dispersion is then blended and melted with a spinning melt to obtain a spinning solution, which is then electrospun to obtain the final product. The clothing fabric of this invention has high moisture-wicking properties and excellent cooling effect upon contact. Furthermore, the fabric preparation process differs from existing cooling and moisture-wicking finishing agents, resulting in a more lasting cooling and moisture-wicking effect.

The application relates to the technical field of chemical synthesis, and discloses a polyamide for preparing textile materials and a preparation method thereof, the preparation method comprising the following steps: performing pre-polymerization on polyamide raw materials, water and an end-capping agent for 2h-8h; when the raw materials contain a lactam monomer, the pre-polymerization temperature (Tcp+100) <T1< (300-250 / p+20xlg(p)); after the pre-polymerization is completed, post-polycondensation is performed: first, polycondensation is performed for 0.5h-1h under the condition that 0kPa>P> (0.1xT1+0.2xT2-95) kPa, and then, polycondensation is performed for 0h-2h under the condition that-60kPa-90kPa, and the post-polycondensation temperature is controlled to satisfy (Tm+q)

The invention relates to a melt spinning device for extruding synthetic filaments, in particular polyamide filaments, which release monomer and / or oligomer compounds during extrusion, comprising a spinning block (2) for extruding filaments (F), the spinning block having a spinneret (20) through which the synthetic filaments are extruded at a predetermined first temperature (T1) into an extrusion chamber (5) located between the spinneret and a cooling device for cooling the filaments, the cooling device (6) delimiting a cooling chamber (8) in which the filaments are cooled to a predetermined second temperature (T2), the extrusion chamber being extended from the cooling chamber by a decoupling extension (4) such that in an evaporation section (50) the first temperature (T1) is maintained at an evaporation temperature (TEVP) at which no exhaust gases (70), in particular monomer and / or oligomer compounds, are present in the decoupling extension (4) by condensation (K) resulting in a deposit.

A filament for an oral care implement has a longitudinal axis and a multi-edged cross-sectional area extending in a plane substantially perpendicular to the longitudinal axis, the multi-edged cross-sectional area having at least 18 projections and at least 18 grooves, the projections and grooves being arranged in an alternating manner. Each projection has a peak, and each groove has a bottom formed by neighboring and converging projections. Each peak has a height, the height being defined as a perpendicular distance measured from the peak of the projection to a tangent between to neighboring bottoms. Each groove has a depth, the depth being defined as a perpendicular distance measured from the bottom of the groove to a tangent between two neighboring peaks. A ratio of the peak height to the depth of the groove is from about 1 to about 2, preferably about 1.5

The application discloses a preparation process of ginger warming filament, which comprises the following steps: S10, ginger active substance extract solution is prepared; S20, ginger active substance / nano-silicon dioxide sustained-release bodies are prepared; after the ginger active substance extract solution is mixed and diluted with anhydrous ethanol, nano-silicon dioxide is added, ultrasonic dispersion is carried out at 20-40 DEG C for at least 30 min, and then stirring adsorption is carried out at room temperature for 2-3 h, so that the ginger active substance is loaded on nano-silicon dioxide mesoporous; after vacuum drying at 40-60 DEG C to remove ethanol, grinding is carried out, and then the ginger active substance / nano-silicon dioxide sustained-release bodies are obtained; S30, ginger warming functional master batch is prepared; and S40, spinning is carried out. The ginger warming filament prepared by the preparation process has the advantages of improving the extraction rate of active substances in ginger, reducing the volatilization of volatile substances such as gingerol and gingerol, and further improving the warmth retention and moisture permeability of the ginger warming filament. The application further discloses a ginger warming fabric, which can improve the antibacterial and warming effects, and has the advantages of functional durability and wearing comfort.

The invention relates to a hollow fiber and yarn. The hollow fiber is provided with a square hollow core part and blades, and the outer surface of the core part is square; the number of the blades is eight, and the blades are located at the four corners and the middle positions of the four edges of the square of the outer surface of the core part respectively. The blades protrude outwards along the straight line where the center point of the hollow fiber and the connecting points of the blades and the outer surface of the core part are located. The fiber disclosed by the invention can keep a good hollow rate in the use process, and the thermal insulation and moisture absorption of the fiber can be always kept at a better level.

The application provides an antistatic mildew-proof soft pile fabric and a preparation method thereof, and the method comprises the following steps: weaving and cutting pile to form a grey fabric by taking conductive filaments as ground warp and ground weft and island yarn as warp; removing the sea component by dissolution treatment to obtain a superfine fiber pile fabric base material; and finally cross-linking and immobilizing the antibacterial particles on the surface of the pile by spraying and baking process. Through the synergistic design of embedding the conductive nanowires in the base fabric fibers and firmly grafting the antibacterial particles on the surface of the superfine fiber pile in a chemical cross-linking manner, the fabric has the functions of persistent, stable antistatic and broad-spectrum antibacterial and mildew-proof while maintaining excellent soft hand feeling and cleaning performance.

The application relates to the technical field of intelligent materials, in particular to a conductive composite fiber based on graphene and graphene quantum dot bridging and a preparation method thereof. The application precisely regulates the spherical morphology of graphene quantum dots through a hierarchical ultrasonic-freezing template method, constructs a micron-level groove structure on the surface of a hybrid material by using plasma etching-mechanical embedding, forms a'mortise and tenon' type interface reinforced composite through the synergistic action of physical embedding-pi stacking, and finally realizes the axial directional arrangement of a conductive network by combining airflow field regulation spinning. The application adopts physical means throughout the process, ensures the safety of the material, and the obtained fiber has fast photo-thermal response, high conductivity and excellent stability, the preparation method is simple, and the application is suitable for industrial production.