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2018results about "Electroconductive/antistatic filament manufacture" patented technology

Intrinsically conductive thermoplastic composition and compounding processing for making conductive fiber

InactiveUS20080139065A1Effective static charge dissipationSafe dissipation of charge into the atmosphereElectroconductive/antistatic filament manufactureLayered productsFiberMaterials science
A conductive thermoplastic composition capable of forming conductive fibers including monofilaments, methods of making these compositions, and fibers including these compositions. The conductive thermoplastic compositions may be formed using any method capable of forming the compositions into fibers. The fibers are substantially smooth and / or are capable of being woven into fabrics or other articles to provide conductive properties to the fabric or article. These fibers provide effective static charge dissipation that may be imparted into applications such conveying belts or protective clothing for clean room operation.
Owner:SABIC INNOVATIVE PLASTICS IP BV

Preparation method of carbon nanotubes/nano ATO (antimony tin oxide)/polypropylene electroconductive fibers

The invention discloses a preparation method of carbon nanotubes/nano ATO (antimony tin oxide)/polypropylene electroconductive fibers. The preparation method comprises the following steps of: (1) mixing nano ATO and carbon nanotubes, placing in an organic solvent together with a dispersant, and carrying out surface treatment to obtain a double-component nano electroconductive agent; (2) mixing the double-component nano electroconductive agent with polypropylene slices, and carrying out melt blending and strip preparation and granulation with a screw extruder to obtain double-component nano electroconductive agent/polypropylene composite electroconductive slices; (3) carrying out melt spinning on the composite electroconductive slices to obtain carbon nanotubes/nano ATO/polypropylene nascent electroconductive fibers; and (4) stretching and shaping the carbon nanotubes/nano ATO/polypropylene nascent electroconductive fibers to obtain the carbon nanotubes/nano ATO/polypropylene electroconductive fibers. By using the preparation method, the filling factor of a filler is increased, the content of an electroconductive filler in the material is reduced, the electric conductivity of the material is improved, and the electric performance stability of the material is simultaneously improved; and the preparation method has low price and no special requirement on equipment, has a economicand simple process route, and is suitable for industrial production.
Owner:ZHONGYUAN ENGINEERING COLLEGE

Water-soluble polymer/graphene composite fiber as well as preparation method and application thereof

The invention relates to water-soluble polymer/graphene composite fiber as well as a preparation method and application thereof. The cross section of the fiber is special-shaped, the surface of the fiber is of an orientated micro-fiber-shaped structure, the strength of the fiber is greater than 100 MPa, the elongation at break is greater than 2%, and the conductivity of the fiber is greater than 0.1 S/cm. The preparation method comprises the following steps: preparing a composite spinning liquid, extruding into a coagulating bath for curing, drafting, leading out of the coagulating bath, drying, and coiling, thereby obtaining the water-soluble polymer/graphene composite fiber; and finally reducing by using a chemical or physical method, thereby obtaining the water-soluble polymer/graphene composite fiber. The cross section of the composite fiber provided by the invention is of a special-shaped structure, the surface of the fiber is of a rich groove micro structure, the strength and the toughness of the fiber are greatly improved when being compared with those of pure graphene fiber, and good conductivity is still maintained, so that the water-soluble polymer/graphene composite fiber has a wide application prospect in the fields such as anti-electrostatic and conductive fabrics, electromagnetic wave absorption and shielding fabrics, energy storage devices, sensors and water treatment.
Owner:DONGHUA UNIV

Method for preparing polyacrylonitrile/carbon nano tube composite material by taking ionic liquid as solvent

The invention relates to a method for preparing a polyacrylonitrile/carbon nano tube composite material by taking ionic liquid as a solvent. The method comprises the following steps of: dispersing carbon nano tubes to the ionic liquid; adding monomers and an initiator into the ionic liquid for polymerizing to obtain stock solution of the polyacrylonitrile/carbon nano tube composite material; and obtaining the polyacrylonitrile/carbon nano tube composite material by washing and drying the obtained stock solution. The polyacrylonitrile/carbon nano tube composite material is prepared into a polyacrylonitrile/carbon nano tube composite membrane by adopting a coating method or is prepared into polyacrylonitrile/carbon nano tube composite fibers by adopting a wet spinning process or a dry-jet wet spinning process. The adopted solvent ionic liquid can make the carbon nano tubes disperse uniformly, and has no volatility and environmental-friendliness. In the preparation method, an in-site polymerization method is adopted, so the preparation method is simple and convenient to operate. The composite material can be used in the fields such as the enhancement, the conductivity, the anti-static property, the electromagnetic shielding and the like of a material.
Owner:DONGHUA UNIV

High-efficient conductive fibre and preparing method thereof

The invention relates to a kind of effective electric fibre. It contains: 5-9 %(w) electric charcoal parent-particle, 92-95%(w) PET polyester powder, and the electric parent-particle terylene, nitrile, or cotton fiber contains: 1-6%(w) selection-CT-928, 0 / 5-2%(w) 1010 and 0.5-2%(w) PLTP (antioxidant), 5-20%(w) dispersant-polyethene cere 2000 1-5%(w) magnesium stearic acid. The preparation method is: first, use electric charcoal as the electric component, and separate it evenly is polyester carrier by enwrap and disperse. Secondly produce the parent-particle by high-speed whisking, mix and extrude. Finally, use twin-screw to the filature and then obtain the electric fibre which has good peparative in ployester carrier. And the quality of spin is good. The invention has a low cost, high filature speed and good electric; the conductivity of one thread is 10000-1000000 ohm / cm.
Owner:浙江工程学院

Preparation method for polymer-grafted graphene laminated fiber with electrical conductivity and high-strength

The invention discloses a preparation method for a polymer-grafted graphene laminated fiber with electrical conductivity and high-strength. The preparation method comprises steps as follows: (1) dissolving graphene oxide raw materials into a solvent, and ultrasonically processing to obtain graphene oxide dispersing liquid; 2) dissolving the polymer into the solvent to obtain the polymer solution; 3) slowly adding the graphene oxide dispersing liquid into the polymer solution, and adding a reducing agent to reduce the graphene oxide into graphene; and 4) centrifugally processing to wash away free polymer to obtain polymer-grafted graphene sol, transferring the polymer-grafted graphene sol into a spinning device, continuously extruding the polymer-grafted graphene sol from a spinning head at a constant speed, forming in solidifying liquid, and then collecting the formed polymer-grafted graphene sol on a roller shaft, so as to obtain the continuous polymer-grafted graphene laminated fiber. The preparation method is simple and convenient, low in cost, rich in variety of used polymers, and suitable for massive industrial production; the produced fiber is excellent in mechanical performance, and higher in conductivity; and the produced fiber can be applied to fields of power transmission, anti-static textile, engineering material, etc.
Owner:ZHEJIANG UNIV

Multi-purpose sheath-core composite monofilament as well as production method and application thereof

The invention relates to a multi-purpose sheath-core composite monofilament for weaving reticulated as well as a production method and application thereof, and belongs to the technical field of production of composite fibers. The multi-purpose sheath-core composite monofilament comprises a sheath layer and a core layer, wherein the sheath layer covers the core layer; the core layer is prepared from PP, TPU or TPEE; the sheath layer is prepared from PE, POE, TPU or TPEE; the melting point of the sheath layer is 120 to 170 DEG C; the melting point of the core layer is 150 to 210 DEG C; the content of the sheath layer is 30 to 70 percent; the content of the core layer is 70 to 30 percent. The multi-purpose sheath-core composite monofilament comprising two components can be applied to weaving of gauze, window screens, curtains, abat vents, light equalization cloth, anti-mosquito nets, anti-haze gauze, filter screen cloth, shoe screen cloth, and base materials of power transmission belts.
Owner:无锡盛烨特邦新材料科技有限公司

Multifunctional high-performance carbon-based nanoparticle/sodium alginate composite fibers and preparation method thereof

The invention discloses a preparation method of carbon-based nanoparticle/sodium alginate composite fibers. The method comprises the steps of firstly, preparing a sodium alginate water solution with a certain concentration; then, feeding graphene oxide into the solution, fully mixing, and carrying out ultrasonic dispersion to obtain a graphene oxide/sodium alginate water solution; feeding a certain quantity of carbon nano tubes into the solution, fully mixing, and carrying out the ultrasonic dispersion to obtain a carbon nano tube/graphene oxide/sodium alginate spinning solution with the good dispersion; filtering the spinning solution, defoaming, and carrying out solution spinning at the room temperature to prepare the carbon-based nanoparticle/sodium alginate composite fibers. According to the carbon-based nanoparticle/sodium alginate composite fibers prepared by adopting the method, the uniform dispersion and the formation of a network structure of carbon-based nanoparticles in the fibers can be realized, the effective orientation of the carbon-based nanoparticles in the fibers can be realized, and the tensile strength, the electrical conductivity and the degradability resistance of the fibers are improved; furthermore, the adsorbability of the fibers is effectively improved, so that the carbon-based nanoparticle/sodium alginate composite fibers can be used for absorbing heavy metal ions and dye in water solutions.
Owner:QINGDAO UNIV

Nano conductive polymer/graphene composite fiber, and preparation method and application thereof

The invention relates to a nano conductive polymer/graphene composite fiber, and a preparation method and application thereof. The section of the fiber is special; a graphene sheet is at a loose stacking state; enriched fold morphology is formed on the surface of the fiber; the average strength of the fiber is greater than 50 MPa; the average breaking elongation is greater than 2 percent; the average conductivity is greater than 1 S/cm. The method comprises the following steps: preparing conductive polymer/graphene oxide composite spinning solution; then extruding the solution into a coagulating bath and performing elongation and curing, and performing drying and winding on the obtained wet fiber, so as to obtain conductive polymer/graphene oxide composite fiber; finally performing reduction through a chemical or physical method so as to obtain the nano conductive polymer/graphene composite fiber. The nano conductive polymer/graphene composite fiber has the advantages that an adjustable special section structure is formed on the section of the composite fiber, rich microstructures are formed on the surface of the composite fiber, the problem that graphene sheet layers are closely stacked is overcome, the graphene fiber with pure toughness is greatly enhanced, and excellent conductivity of the graphene fiber is still kept, so that the composite fiber has a wide application prospect.
Owner:DONGHUA UNIV

Polymer composite function fibers containing partial graphene, and preparation method thereof

The present invention discloses a polymer composite function fibers containing partial graphene, and a preparation method thereof. The fibers comprise a component A and a component B, wherein the component A and the component B are combined in a partial exposing manner, side-by-side manner or skin-core manner, and 20-100% of the outer area of each fiber is the component B. The method comprises: crystallizing a polyester containing 0.1-1 wt% of partial reducing graphene and a polyester containing 4-20 wt% of a nanometer composite filler containing partial reducing graphene and TiO2, drying, carrying out melt composite spinning, and carrying out drawing and relaxation heat setting at a temperature of 80-160 DEG C, and reducing the partial graphene in the fibers to achieve the carbon/oxygen atom ratio of 9/1-15/1 through the reducing treatment. According to the present invention, the prepared fibers can be produced at the high spinning speed, and the production efficiency is high; and the fibers have characteristics of low single fineness, high strength and lower resistivity, meets the antistatic requirement, and further has characteristics of anti-bacterial property and flame retardant property so as to provide good application prospects.
Owner:NINGBO MYBABY BABY & CHILDREN PROD MFG
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