• 专利标题:   Manufacture of wire for coaxial cable, involves forming plating layer by plating etched-surface core layer made of aramid fibers, palladium metallizing, forming graphene oxide layer and another plating layer on graphene coating layer and forming antioxidant layer.
  • 专利号:   KR2456500-B1
  • 发明人:   PARK J, TAE K
  • 专利权人:   4MB CO LTD
  • 国际专利分类:   C23C018/16, C23C018/22, C23C018/28, C23C018/30, C23C018/32, C23C018/38, D06M101/36, D06M011/83, H01B013/22, H01B007/00, H01B007/28
  • 专利详细信息:   KR2456500-B1 21 Oct 2022 H01B-013/22 202292 Pages: 13
  • 申请详细信息:   KR2456500-B1 KR030564 11 Mar 2022
  • 优先权号:   KR030564

▎ 摘  要

NOVELTY - Manufacture of wire using conductive aramid fibers involves etching a surface of core layer made of aramid fibers with alkali and attaching cations, forming a layer (a) by plating the core layer by treating palladium/tin colloidal solution, performing palladium metallization, coating a cation on the layer (a), forming a graphene oxide layer on the cation-coated layer and reducing the graphene oxide, forming the graphene oxide layer and forming a layer (b) on the graphene coating layer formed by reducing the graphene oxide by electroplating, and forming an antioxidant layer on the layer (b). The layer (a) is formed by performing catalyzing treatment of precipitating a palladium-tin colloidal catalyst on the surface of fiber, electroless-plating or metalizing and metal-electroplating by adding a palladium-tin colloidal catalyst adsorption accelerator. USE - Manufacture of wire for coaxial cable used for transmission of radiofrequency signal such as cable television signal and cellular phone broadcast signal. ADVANTAGE - The method provides lightweight wire having improved electromagnetic wave shielding property, and excellent flexibility. DETAILED DESCRIPTION - Manufacture of wire using conductive aramid fibers involves etching a surface of core layer made of aramid fibers with alkali and attaching cations, forming a layer (a) by plating the core layer by treating palladium/tin colloidal solution, performing palladium metallization, coating a cation on the layer (a), forming a graphene oxide layer on the cation-coated layer and reducing the graphene oxide, forming the graphene oxide layer and forming a layer (b) on the graphene coating layer formed by reducing the graphene oxide by electroplating, and forming an antioxidant layer on the layer (b). The layer (a) is formed by performing catalyzing treatment of precipitating a palladium-tin colloidal catalyst on the surface of core layer, electroless-plating or metalizing and metal-electroplating by adding a palladium-tin colloidal catalyst adsorption accelerator to increase the adsorption amount of the palladium-tin colloidal catalyst on the surface of the aramid fiber. The palladium-tin colloidal catalyst adsorption promoter comprises a bromine compound which generates bromine ions as an active ingredient chosen from lithium bromide, sodium bromide, aluminum bromide, potassium bromide, calcium bromide, strontium bromide, tin (II) bromide, cesium bromide, barium bromide, hydrobromic acid, silicon (IV) bromide, vanadium (III) bromide, manganese (II) bromide, iron (II) bromide, cobalt (II) bromide, nickel (II) bromide, palladium (II) bromide and/or gold (III) bromide. The graphene oxide layer on the cation-coated plating layer (a) and reducing the graphene oxide involves contacting the cation-coated layer (a) with an amine-based solution, and reducing by contacting with a graphene oxide solution. In the step of forming the graphene oxide layer and forming the layer (b) by electroplating on the graphene coating layer is formed by reducing the graphene oxide. The layer (b) is plated with tin or silver, which is used in the step of forming the antioxidant layer on the layer. The antioxidant used in the step of forming the antioxidant layer on the layer (b) comprises metal chromium powder, alumina powder, binder, solvent and antifoaming agent.