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Application of supercritical carbon dioxide in catalyzation and Ni-P electroless plating of nylon 6,6 textile

Surface and Coatings Technology, ISSN: 0257-8972, Vol: 302, Page: 336-343
2016
  • 25
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Metrics Details

  • Citations
    25
    • Citation Indexes
      25
  • Captures
    19

Article Description

In this study, an electroless deposition method including catalyzation in supercritical carbon dioxide (sc-CO 2 ) and plating in sc-CO 2 emulsified electrolyte was applied in metallization of Nylon 6,6 textile. In order to demonstrate the effects of the sc-CO 2, the catalyzation was conducted either by the conventional method or the supercritical CO 2 catalyzation (SCC) method with bis (2,4-pentandionato)-palladium. After the catalyzation process, either the conventional electroless plating or the electroless plating with supercritical CO 2 emulsified electrolyte (ELP-SCE) was performed. Surface of the Ni-P coatings on the Nylon 6,6 was observed by an optical microscope and a scanning electron microscope. The Ni-P coating by the conventional catalyzation and the conventional electroless plating showed some cracks, nodules and rough structure. The Ni-P coating by the SCC and the conventional electroless plating showed smooth Ni-P coating on the surface of each fibers and had some peeled-off parts. On the other hand, uniform Ni-P coating on the surface of each fibers was obtained by the SCC and the ELP-SCE. These results demonstrated that the SCC is effective to impregnate Pd catalysts into the fibers, and the ELP-SCE can inhibit the nodule growth of the Ni-P. Thus, the proposed method can metallize the surface of each Nylon 6,6 fibers and has potential to give some functions on textiles.

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