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    • 51. 发明授权
    • Carbon fiber-coating produced via precursor/solvent solution
    • 通过前体/溶剂溶液生产碳纤维涂层
    • US5891518A
    • 1999-04-06
    • US792825
    • 1997-01-30
    • Joaquin Ricardo AcevedoDavid Eric Daws
    • Joaquin Ricardo AcevedoDavid Eric Daws
    • C03C25/44C04B41/50B05D3/02
    • C04B41/009C03C25/44C04B41/5001
    • The present invention is a low cost carbon fiber-coating produced via a precursor/solvent solution and the methods and processes for fabricating such a carbon fiber-coating. The carbon fiber-coating comprises a fibrous substrate or fabric material and a carbon coating. The carbon coating prior to carbonization, is comprised of a coating solution made of a precursor dissolved directly within a solvent. Fabrication is achieved by first desizing the fibrous substrate, second immersing the desized fibrous substrate in the coating solution, third evaporating the solvent and curing the precursor via a low temperature pyrolysis in preferably an inert atmosphere, and fourth carbonizing the coating via a high temperature pyrolysis. These steps can be repeated as necessary, depending on the desired final thickness of the carbon coating. Multiple applications of the carbon coating can be used to provide limitless final coating thickness.
    • 本发明是通过前体/溶剂溶液制备的低成本碳纤维涂层以及制造这种碳纤维涂层的方法和工艺。 碳纤维涂层包括纤维基材或织物材料和碳涂层。 碳化之前的碳涂层由直接溶解在溶剂中的前体制成的涂布溶液组成。 通过首先将纤维基材脱浆,将脱浆的纤维基材浸渍在涂布溶液中,第三次蒸发溶剂并在优选惰性气氛中通过低温热解固化前体,并通过高温热解法将涂层第四碳化, 。 这些步骤可以根据需要重复,这取决于所需的碳涂层的最终厚度。 可以使用碳涂层的多种应用来提供无限的最终涂层厚度。
    • 55. 发明授权
    • Method for producing electrically-conductive elements
    • 导电元件的制造方法
    • US3269883A
    • 1966-08-30
    • US8854261
    • 1961-02-10
    • OWENS CORNING FIBERGLASS CORP
    • WILLIAM SHULVERMILLER WILLIAM HATTERIDGE THOMAS LALFRED MARZOCCHI
    • C03C25/10C03C25/44F16L9/12G02B6/44H01B1/00H01B1/24H01B3/00H01B7/00H01B13/00H01B13/02H05B3/56H05B3/58
    • H05B3/56C03C25/44C03C25/47F16L9/125G02B6/4416G02B6/4479H01B1/00H01B1/24H01B3/004H01B7/00H01B7/0063H01B13/0026H01B13/02H05B3/565
    • Glass fibres are coated with a liquid composition containing electrically conductive particles, e.g. graphite and carbon black, and are then led into pressure contact with a heated surface and maintained in contact for a sufficient time to bond the particles to the fibres. The fibres may be passed through a colloidal dispersion of graphite particles in water to form a coating of the particles on the fibres and then heated by pressure contact with a hot surface to cause the particles to adhere to the fibres and the fibres to adhere to one another. Prior to coating with the electrically conductive particles the fibres may be coated with 0.5-15% by weight of a carbonizable or caramelizable material, e.g. a starch, a sugar such as glucose, sorbitol, glycerol or polyvinyl acetate, the heat treatment after application of the coating of electrically conductive particles serving to carbonize or caramelize the material and cause the particles to adhere to the fibres. As shown in Fig. 1, glass fibre strands 14 may be passed from creel 10 through the guide openings in guide structure 26 and central eyes 28 where they are formed into rovings, over roller 32 which dips into water, which may contain 2-5% by weight of an alcohol, e.g. ethyl alcohol, in pan 36, and through pan 38 which contains the particles of electrically-conductive material. The coated rovings then pass through openings of predetermined size in dies 58 to wipe off excess particles and fluid to maintain a uniform coating thickness and under a heated idler roller 60 and are then placed in pressure contact with a rotating drum 62 heated to a temperature up to 850 DEG F. to flatten the bundle of filaments into substantially parallel alignment and bond the conductive particles to the filaments and the filaments to one another prior to winding on take-up rollers 64. Several coatings of electrically-conductive particles may be applied. The electrical properties of the coated glass fibres may be improved by passing an electric current through them as they are heated to carbonize and bake the coating thereon.ALSO:Glass fibres are coated with a liquid composition containing electrically conductive particles of a metal or an organo metallic compound which decomposes on heating to form electrically-conductive metallic particles, and are then led into pressure contact with a heated surface and maintained in contact for a sufficient time to bond the particles to the fibres. Prior to coating with the electrically conductive particles the fibres may be coated with 0.5-15% by weight of a carbonizable or caramelizable material, e.g. a starch, a sugar such as glucose, sorbitol, glycerol or polyvinyl acetate, the heat treatment after application of the coating of electrically conductive particles serving to carbonize or caramelize the material and cause the particles to adhere to the fibres. As shown in Fig. 1, glass fibre strands 14 may be passed from creel 10 through the guide openings in guide structure 26 and central eyes 28 where they are formed into rovings, over roller 32 which dips into water, which may contain 2-5% by weight of an alcohol, e.g. ethyl alcohol, in pan 36, and through pan 38 which contains the particles of electrically-conductive material. The coated rovings then pass through openings of predetermined size in dies 58 to wipe off excess particles and fluid to maintain a uniform coated thickness and under a heated idler roller 60 and are then placed in pressure contact with a rotating drum 62 heated to a temperature up to 850 DEG F. to flatten the bundle of filaments into substantially parallel alignment and bond the conductive particles to the filaments and the filaments to one another prior to winding on take-up rollers 64. Several coatings of electrically-conductive particles may be applied. The organo metallic compound may be an organic salt or alkyl compound of nickel, iron or zinc. The electrical properties of the coated glass fibres may be improved by passing an electric current through them as they are heated to carbonize and bake the coating thereon.