A novel structure of nan0Composite consisting of conducting Polyaniline (PANI), graphite nanosheets (NanoGs) and Eu3+ was synthesized through emulsion polymerization. NanoGs were prepared via powdering the expanded graphite with the aid of sonication in aqueous ethanol solution. Then NanoGs and rare earth ions (Eu3+) were directly organised with sonication, using p-toluene-sulfonic acid (P-TSA) as an emulsifier and dopant, (NH4)2S2O8 as inducing reagent and the polymerization of aniline monomer simultaneously. The product was characterized by transmission electron microscope (TEM), X-ray diffraction (XRD), Fouier transform infrared spectroscopy (FT-IR), and thermal gravimetric analysis (TGA). From the thermogravmetric analysis, the introduction of NanoGs and rare-earth ions (Eu3+) exhibited a beneficial effect on the thermal stability of pure PANI.
As fast development of semiconductor industry,equipment using PLC as main control unit has been widely used. Wafer chemical etching machine based on PLC control technology has some unreasonable design, causing the low process efficiency. After electronic control system upgrade, UPH is to increase 220%, water consumption is to decrease 39% and power consumption is to decrease 69%.
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