44results about How to "Spinnable" patented technology

The invention relates to a musa fiber, which is prepared from stems of musa plants, which are used as raw materials, wherein the musa fiber comprises the following components: cellulose is 81-95 percent, hemicellulose is 1.0-5.0 percent, lignin is 1.0-2.8 percent, other components are pectin water soluble matter and is based on the dry weight of the musa fiber. The above musa fiber is prepared through the mechanical treatment, acid preimpregnation, washing, soda boil, washing, dehydration and oil supply, the above musa fiber is used to be spun into 10-60 single yarn, the process has low cost, compared with ancient process, the strength and the fineness of the made fiber are improved, and the process of preparing the musa fiber of the invention is also capable of being used to made mulberry fiber. The invention opens a new way for the development and utilization of phloem resources, has an important significance at the present that a part of prior fiber resources are run out, and accords with strategic demands of sustainable development.

Provided is a fiber formed from a resin containing a silicone-modified polyurethane resin. With the present invention, a characteristic fiber having excellent flexibility, slipping ability, blocking resistance, heat retaining property, water vapor permeability, water repellency, and spinnability can be provided.

The invention discloses a preparation method of a spinnable polycarbosilane precursor material. The preparation method includes the steps: placing polydimethyl silane into a pyrolysis kettle, openinga vacuum valve of the pyrolysis kettle, turning on a vacuum pump, closing the vacuum valve of the pyrolysis kettle when the pyrolysis kettle is vacuumized to be -0.08 to -0.09Mpa, opening a nitrogen valve of the pyrolysis kettle, leading in nitrogen, enabling the internal pressure of the pyrolysis kettle to be 0.04Mpa and maintaining the pressure for 20-24 hours; vacuumizing the pyrolysis kettle to be lower than -0.09Mpa, turning on a stirring device and a heating device of the pyrolysis kettle, heating the inside of the pyrolysis kettle to reach the temperature of 200 DEG C, keeping the temperature for 1-3 hours, continuously stirring the polydimethyl silane in the pyrolysis kettle at high temperature and low pressure to remove residual solvents of the polydimethyl silane, increasing thetemperature for pyrolysis, transferring the polydimethyl silane to a synthesis kettle and performing synthesis at the high temperature and high pressure to obtain polycarbosilane. A molecular chain inthe prepared polycarbosilane is good in linearity, branches on the molecular chain are fewer and less crossed, the polycarbosilane is moderate in viscosity and good in spinnability, the molecular weight of the prepared polycarbosilane is moderately 800-1300, and the polycarbosilane is the most spinnable.

The invention provides a preparation method of a biomass charcoal / graphene flexible composite film. The nitrogen-rich biomass charcoal / graphene flexible composite film is prepared by the blended spinning solution containing the silk fibroin, the graphene oxide and the activator through the electrospinning technology and high temperature one-step carbonization activation. The material has the characteristics of being nitrogen-rich, porous and flexible. According to the method, the silk fibroin is rich in amino acids and can react with the graphene oxide in a cross-linking way through heating and stirring so that the graphene oxide is enabled to be aminated, the graphene oxide can be further reduced in the carbonization process, and the nitrogen atom part of the biomass residues in the composite material. The mass ratio of the biomass charcoal to the graphene in the obtained biomass charcoal / graphene flexible composite film is (0.5-9):1, the specific area is 1850-2740m2 / g and the mitogencontent is 3.6-9.4%. The composite film is applied to the electrode material of the supercapacitor and the sodium ion battery so as to show high specific capacity, long cycle life and excellent rateperformance.

The invention provides a semi-dull high-strength low-elongation viscose fiber as well as a preparation method and application thereof. The viscose fiber is obtained by sequentially performing soaking, grinding, squeezing crushing, kneading, directional polymerization reduction, yellowing, dissolving, filtering, defoaming, curing, spinning drawing and after-treatment on a pulp raw material, and has an index system that the dry fracture strength is more than or equal to 3.20cN / dtex, the wet fracture strength is more than or equal to 1.70cN / dtex, the strength needed for generating 5% of the elongation in a wet state is more than or equal to 0.6cN / dtex, the dry elongation at break is 13.0-16%, and the wet elongation at break is 16.0-21.0%. The semi-dull high-strength viscose fiber provided by the invention is prepared by virtue of technical innovation, and is a novel fiber variety which has an index system different from that of ordinary viscose fibers and Modal fibers, and a product of the fiber shows high and strong fiber characteristics and also shows skin affinity stronger than that of cotton fibers, so that the semi-dull high-strength low-elongation viscose fiber can effectively replace the existing differentiation viscose fiber, the development and the industrial upgrading of downstream novel textiles can be promoted while the processability of the downstream process of the viscose fiber is improved, and the semi-dull high-strength low-elongation viscose fiber can be well applied to the field of producing underclothes and high-grade woven fabrics.

The invention relates to a heat-proof PPS (polyphenylene sulfide) filament adopting copper-loaded bergmeal as a filling material and the preparation and the application of the heat-proof PPS filament. In the heat-proof PPS filament, the mass content of the copper-loaded bergmeal composite filling material is 5 to 30 percent. A preparation method of the heat-proof PPS filament comprises the following steps: (1) mixing bergmeal with deionized water to preparing a turbid liquid, adding reductant, copper ion contained lyotrope and copper protecting agent, performing reaction, and then performing ball-milling to obtain the micro-nano powdered copper-loaded bergmeal filling material; (2) premixing the micro-nano powdered copper-loaded bergmeal filling material with PPS chips through kneading to obtain premix, then extruding out the premix, and finally palletizing to obtain heat-proof PPS master batches; and (3) drying and crystallizing the heat-proof PPS master batches, performing melt spinning for forming, cooling, applying oil, performing preliminary reeling, and then drawing for shaping to obtain the heat-proof PPS filament. The PPS filament provided by the invention has the advantages of favorable spinnability, excellent heat resistance and wide application prospect.

A fiber formed from a resin including a silicone-modified polyurethane resin comprising the reaction products of a polyol (A), a chain extender (B), an active-hydrogen-group-containing organopolysiloxane (C), and a polyisocyanate (D), wherein the active-hydrogen-group-containing organopolysiloxane (C) contains an active-hydrogen-group-containing organopolysiloxane (C-1) having a carbinol group atonly one terminal.

The invention relates to a method for preparing conduction meta-position aramid fibers. The method mainly comprises the following steps: (1) treating conduction components; (2) adding the conduction components, a solvent and a dispersing agent into high-speed mixing equipment in proportion, controlling the temperature by 50-80 DEG C, and fully mixing; and then grinding to reach the reasonable size, wherein the maximum size is below 200 nanometer; (3) adding the ground conduction component solution into a polymer solution, fully and uniformly mixing, and then cooling and deaerating to obtain a conduction fiber spinning solution; and (4) adopting a wet spinning process, carrying out solidification, drawing, washing and heat treating, and finally obtaining the meta-position aramid fibers with conductivity. The conduction meta-position aramid fibers prepared by the method has the good performances of meta-position aramid such as intrinsic inflaming retarding, high temperature resistance, size stability, spinnability and the like and meanwhile has the good conductivity of the resistivity (104-105) omega.cm.

The invention provides semi-dull high-intensity low-elongation viscose fiber and a preparing method of the semi-dull high-intensity low-elongation viscose fiber. The viscose fiber is obtained through sequentially carrying out soaking, grinding, pressing and crushing, kneading, polymerization reduction, yellowing, dissolution, filtering, defoaming, aging, spinning traction and post treatment on pulp raw materials. The viscose fiber has the following indexes that the fiber number is 1.11 to 1.67 dtex, the dry fracture intensity is greater than or equal to 3.10cN / dtex, the wet fracture intensity is higher than or equal to 1.60cN / dtex, the intensity required for generating the 5-percent elongation rate in the wet state is higher than or equal to 0.55N / dtex, and the dry fracture elongation rate is 11.0 to 19.0 percent. The high-intensity low-elongation viscose fiber related by the invention is a novel fiber variety realized through technical innovation, an index system is different from that of ordinary viscose fiber and modal fiber; a product shows the high-intensity and low-elongation fiber features of the modal fiber, and also shows the higher skin affinity than cotton fiber; the existing differentiated viscose fiber can be effectively replaced; the downstream work procedure processing performance of the viscose fiber is improved; meanwhile, the development and the industrial updating of downstream novel textiles can also be promoted.

The invention provides an ultrafine semi-dull high-strength low-elongation viscose fiber and a preparation method thereof. The viscose fiber is obtained by sequentially performing soaking, grinding, squeezing crushing, kneading, polymerization reduction, yellowing, dissolving, filtering, defoaming, curing, spinning drawing and after-treatment on a pulp raw material, and has the following indexes that the fineness is 0.8-1.11dtex, the dry fracture strength is more than or equal to 3.10cN / dtex, the wet fracture strength is more than or equal to 1.60cN / dtex, the strength needed for generating 5% of the elongation in a wet state is more than or equal to 0.55cN / dtex, and the dry elongation at break is 11.0-19.0%. The ultrafine high-strength low-elongation viscose fiber is a novel fiber variety realized by virtue of technical innovation, and has an index system which is different from that of ordinary viscose fibers and Modal fibers, and a product of the fiber shows the fiber characteristics of high strength and low elongation of the Modal fibers and also shows skin affinity stronger than that of cotton fibers, so that the ultrafine semi-dull high-strength low-elongation viscose fiber can effectively replace the existing differentiation viscose fiber, and while the processability of the downstream process of the viscose fiber is improved, the development and the industrial upgrading of downstream novel textiles are promoted.

The invention provides a preparation method of a biomass charcoal / graphene flexible composite film. The nitrogen-rich biomass charcoal / graphene flexible composite film is prepared by the blended spinning solution containing the silk fibroin, the graphene oxide and the activator through the electrospinning technology and high temperature one-step carbonization activation. The material has the characteristics of being nitrogen-rich, porous and flexible. According to the method, the silk fibroin is rich in amino acids and can react with the graphene oxide in a cross-linking way through heating and stirring so that the graphene oxide is enabled to be aminated, the graphene oxide can be further reduced in the carbonization process, and the nitrogen atom part of the biomass residues in the composite material. The mass ratio of the biomass charcoal to the graphene in the obtained biomass charcoal / graphene flexible composite film is (0.5-9):1, the specific area is 1850-2740m2 / g and the mitogencontent is 3.6-9.4%. The composite film is applied to the electrode material of the supercapacitor and the sodium ion battery so as to show high specific capacity, long cycle life and excellent rateperformance.

The invention discloses a method for preparing modified konjac glucomannan fiber by electrostatic spinning. The method is characterized by comprising the following steps of: modifying konjac glucomannan, i.e., dissolving the konjac glucomannan in ethanol water solution, carrying out swelling reaction by adding sodium hydroxide, neutralizing by diluted hydrochloric acid, filtering, washing, and drying to obtain acetyl-free konjac glucomannan; mixing and reacting distilled water, acetyl-free konjac glucomannan, methyl acrylate and initiator under the temperature of 10-70DEG C, mixing by adding ethanol, standing for settling, filtering, washing solid with acetone, and drying to obtain modified konjac glucomannan; preparing spinning solution; and carrying out electrostatic spinning to prepare fiber. The method has the characteristics of simple technology, low cost and the like, and is environment-friendly, and the prepared fiber material has good application prospect in the fields of medicine, environmental protection, chemical industry, agriculture and the like.

The invention discloses a method for manufacturing conductive polyester fibers. The method comprises the following steps of: adding conductive materials including ATO conductive powder, superconducting carbon black, zinc oxide whiskers, potassium titanate whiskers and the like into polyester to prepare conductive polyester; and taking the conductive polyester as a skin layer to prepare polyester conductive fibers with other polyesters through a composite spinning technology. Through the method, the skin layer part of the fibers contains conductive substances, so that the fibers have excellent physical and processing performance of synthetic fibers while having conductivity, the resistivity of the polyester fibers can be greatly reduced, and the breaking strength of the fibers can also be improved.

The invention relates to an emulsion-based heat storage fiber and a preparation method thereof, and relates to the technical field of heat storage fibers. The preparation method comprises the following steps: firstly, adding an oil phase into a water phase, and uniformly mixing and stirring to obtain an oil-in-water emulsion; the oil phase is a phase change material; the water phase is a mixed solution of a particle stabilizer, a water-soluble polymer and water; the water-soluble polymer comprises one or more of sodium alginate, polyvinyl alcohol, acrylamide, polyethyleneimine, polyvinyl acetal, polyvinyl methyl ester, polyoxyethylene, polyacrylic acid, polymethylacrylic acid and polyethylene glycol; and extruding the oil-in-water emulsion into a coagulating bath, carrying out wet spinning, and after the reaction is completed, freezing and drying to obtain the emulsion-based heat storage fiber, a calcium ion solution is adopted in the coagulating bath. The heat storage fiber disclosed by the invention has the advantages of high heat storage density, high specific surface area, flexibility, spinnability, stretchability and the like, and has a great application prospect in the field of heat regulation textiles.

The invention provides a semi-dull, high-strength, low-elongation viscose fiber and a preparation method thereof. The viscose fiber is prepared by impregnating pulp raw materials, grinding, crushing, kneading, depolymerizing, yellowing, dissolving, and filtering in sequence. , defoaming, ripening, spinning and drawing and post-treatment, the viscose fiber has the following indicators: dry breaking strength ≥ 3.10 cN / dtex, wet breaking strength ≥ 1.60 cN / dtex, 5% elongation in wet state The strength required for elongation is ≥0.55cN / dtex, and the dry elongation at break is 11.0-19.0%. The high-strength and low-elongation viscose fiber involved in the present invention is a new type of fiber achieved through technological innovation. It has an index system different from ordinary viscose fiber and modal fiber, and its products not only show the high-strength, low-elongation fiber characteristics of modal fiber , it also shows stronger skin-friendly properties than cotton fibers, which can effectively replace the existing differentiated viscose fibers. While improving the processing performance of viscose fibers in downstream processes, it can also promote the development and industrialization of downstream new textiles upgrade.

A clutch cover for a forklift, which relates to the technical field of forklift parts processing and modification, is characterized in that it comprises the following components: 15% of ferric oxide, 37% of titanium-magnesium alloy, 7% of potassium manganate, 10% of anti-aging agent, and 12% of silicone oil , mercury 9%, asbestos 10%. The invention has reasonable configuration, high strength and long service life.

The invention discloses a non-woven fabric raw material, a preparation method of the non-woven fabric raw material and a preparation method of a non-woven fabric. The non-woven fabric raw material comprises 60-100wt% of a polymer composition and 0-40wt% of a first propylene homopolymer. The polymer composition contains 70-95wt% of crystalline polypropylene A and 5-30wt% of an ethylene-propylene elastic copolymer B. At a temperature of 230 DEG C, under load of 2.16kg, a ratio of a melt index of the polymer composition to a melt index of the crystalline polypropylene A is in a range of 0.7-1.3. The non-woven fabric raw material has spinnability and can be used for preparing the non-woven with high flexibility and high strength.