Supercritical Fluid-assisted Electroless Copper Plating of Aramid Film:The Influence of Surface Treatment

Abstract

For over 50 years, plastic materials have been replacing metals in many different fields (automobiles, housing, safety and computers). Indeed, polymers are more versatile and can thus be modeled to exactly fit their new specific usages such as intelligent fibers or nano fibers. However, until recently, scientists faced the problem of the non-conductivity of polymers. Hence, they developed various metallization processes 1-3 to create smaller and lighter electrical devices. With the realization that industrial waste leads to environmental problems 4, new techniques have been developed to comply with new ecological legislation 5, 6. Supercritical carbon dioxide (sc-CO2) is a widely used medium because of its intrinsic properties. Sc-CO2 is completely recyclable, does not generate waste water and is an efficient replacement for many organic solvents 7. Moreover, it has high diffusivity, low viscosity and high thermal conductivity, and is available at low cost. Sc-CO2 addresses safety considerations as well, since it is nonflammable and non-reactive under most conditions. Due to those properties, sc-CO2 is a valuable medium in the fields of extraction 8, dyeing 9 and impregnation 10. In the case of polymer impregnation, sc-CO2 plasticizes the matrix and swells it, thereby providing the room necessary to for the impregnation of solutes with relatively large molecular weights, such as organometallic

Surface Silverized Meta-Aramid Fibers Prepared by Bio-inspired Poly(dopamine) Functionalization

“…Moreover, the poly(dopamine) layer could be used as a versatile platform for secondary reactions and improve the wettability of the hydrophobic materials. The metal-binding ability brought about by the catechols present in the poly(dopamine) (PDA) coating made it possible to deposit adherent and uniform metal coatings onto the substrates by electroless plating without conventional processes such as coarsening, sensitizing, and activating, which are cumbersome and toxic. , However, to the best of our knowledge, the fabrication of surface silvered polymetaphenylene isophthamide (PMIA) via dopamine functionalization is yet to be reported.…”

Surface modification of poly(p-phenylene terephthalamide) fibers with HDI assisted by supercritical carbon dioxide

“…16 Zhao et al 17 designed a new pretreatment process, in which the organometallic complex was impregnated into Kevlar® fabrics/bers by using ScCO 2 to electro conductive composite fabrics/bers and metalizing aramid bers using supercritical by copper plating of aramid lm. 18 In an early study, we have reported a new method by inltrating polymeric materials into aramid lament networks to improve their mechanical properties with the aid of ScCO 2 . 19 In this study, the surface and the adhesion properties of aramid bers were further researched.…”

Impregnation of Materials in Supercritical CO2 to Impart Various Functionalities

“…Polycarbonate has been impregnated with silver nitrate in scCO 2 , resulting up to 99.9% bacteria reduction [53]. Belmas and co-workers [54][55][56] have used scCO 2 process to impregnate a range of organometallic complexes in a synthetic polymer prior to electroless copper plating to improve the adhesion of copper to the polymer. The adhesion between the copper and polymer was much improved after scCO 2 impregnation of the organometallic complexes.…”