ELECTRIC CONDUCTOR
    9.
    发明申请
    ELECTRIC CONDUCTOR 审中-公开

    公开(公告)号:US20200027626A1

    公开(公告)日:2020-01-23

    申请号:US16499459

    申请日:2018-03-15

    申请人: Martin Koehne

    发明人: Martin Koehne

    摘要: Yarns for electrical conduction that comprise a composite of fibres composed of carbon nanotubes and/or of a multiplicity of graphene layers and have a specific porosity are already known. The yarns have an electrical insulation layer, which is produced by application of a polymer coating. The electrical insulation layer has to adhere to the yarn sufficiently well for the insulation not to detach even in the event of mechanical stress, for example deflection with a small bending radius. Furthermore, the electrical insulation layer should be as thin as possible in order to achieve a low thermal resistance. Additionally, the electrical insulation layer has to be elastic enough to be able to cope with any geometric changes in the non-rigid yarn without detaching. In the electric conductor according to the invention, the electrical insulation is improved. The invention provides for the outer fibres of the composite to be fluorinated in such a way that they form an electrical insulation layer (2) and for the fibres in an internal region (3) to be electrically conductive.

    Surface fluorinated hydrogen containing material and process for making
    10.
    发明授权
    Surface fluorinated hydrogen containing material and process for making 失效
    表面氟化氢含氢材料及其制备方法

    公开(公告)号:US3740325A

    公开(公告)日:1973-06-19

    申请号:US3740325D

    申请日:1971-09-22

    申请人: ALLIS CHALMERS

    发明人: MANION J DAVIES D

    摘要: A MANUFACTURED MATERIAL AND A PROCESS FOR MAKING THE MATERIAL IS DISCLOSED. THE MANUFACTURED MATERIAL I A HYDROGEN CONTAINING SUBSTANCE HAVING A FUORINATED SURFACE AND IN WHICH HYDROGEN ATOMS, WHICH MAY BE PRESENT IN HYDROXYL RADICALS ATTACHED TO A CARBON ATOM CHAIN, HAVE BEEN REPLACED IN THE SURFACE OF THE MATERIAL BY FLUORINE ATOMS OR RADICALS, AND WITH SUCH FUORINATED SURFACE OF THE MATERIAL CONTAINING AT LEAST ABOUT 2 MICROGRAMS OF SUCH FLUORINE PER CM.2 OF SURFACE AREA. THE PROCESS FOR MAKING SUCH A MATERIAL INCLUDES THE STEPS OF SELECTING A SUBSTRATE CONTAINING HYDROGEN ATOMS WHICH MAY BE PRESENT IN HYDROXYL RADICALS ATTACHED TO A CARBON ATOM CHAIN, SELECTING A GAS CONTAINING FLUORINE ATOMS OR RADICALS, PLLACING THE SELECTED SUBSTRATE BETWEEN ELECTRODES IN A FLOWING ATMOSPHERE OF THE SELECTED GAS AT SUBATMOSPHERIC PRESSURE, AND SUBJECTING THE SUBSTRATE TO AN ELECTRODELESS DISCHARGE OF AT LEAST ABOUT 0.2 K.W.H/YARD 2 TO CHEMICALLY ACTIVATE BOTH THE SURFACE OF THE SUBSTRATE AND THE GAS, AND EXCHANGE THE FLUORINE ATOMS OR RADICALS FOR SURFAE HYDROGEN ATOMS OR RADICALS TO PRODUCE A MATERIAL WITH A SURFACE. WHICH COMPARED T THE SUBSTRATE BEFORE THIS PROCESS TREATMENT, IS MORE WATER REPELLENT (WITHOUT SEALING PORES), IS MORE CORROSION AND SOIL RESISTANT, MORE CHEMICALLY INERT, MORE LIKE THE RELATVELY EXPESIVE POLYTETRAFLUOROETHYLENE. WHEN THE SUBSTRATE IS A MATERIAL HAVING A RELATVELY INERT SURFACE, SUCH AS POLYETHYLENE, THE PROCESS IS DISCLOSED AS INCLUDING AN INITIAL TREATMENT STEP THAT INVOLVES ION BOM-BARDMENT OF THE SUBSTRATE IN HELIUM GAS TO ACTIVATE THE SURFACE BEFORE THE SURFACE IS TREATED IN THE FLUORINE CONTAINING GAS.