102 research outputs found

    Optimization of atmospheric plasma treatment of LDPE films: Influence on adhesive properties and ageing behavior

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    One of the major disadvantages of low density polyethylene (LDPE) films is their poor adhesive properties. Therefore, LDPE films have been treated with atmospheric pressure air plasma in order to improve their surface properties. So as to simulate the possible conditions in an industrial process, the samples have been treated with two different sample distances (6 and 10 mm), and treatment rates between 100 and 1000 mm s-1. The different sample distances are the distance of the sample from the plasma source. The variation of the surface properties and adhesion characteristics of the films were investigated for different aging times after plasma exposure (up to 21 days) using contact angle measurement, atomic force microscopy, weight loss measurements and shear test. Results show that the treatment increases the polar component () and these changes improve adhesive properties of the material. 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    DESFILE DE LOS BOYS SCOUTS EN LA ALAMEDA DE COLÓN [Material gráfico]

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    ADQUIRIDA POR EL COLECCIONISTA EN LAS PALMAS G.C.NIĂ‘AS UNIFORMADAS DESFILANDO POR LA ALAMEDA DE COLĂ“N.Copia digital. Madrid : Ministerio de EducaciĂłn, Cultura y Deporte. SubdirecciĂłn General de CoordinaciĂłn Bibliotecaria, 201

    Glucose detection based on CNx/Co3O4 composite electrode fabricated by a hybrid non-thermal plasma/sol-gel deposition technique

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    In the present study, the electrochemical performance of CNx/Co3O4 nano-composite electrodes toward applications in the non-enzymatic glucose detection is reported. The multilayer electrodes were nano-engineered by a novel hybrid non-thermal plasma/sol-gel deposition process combining low-pressure dielectric barrier discharge plasma and sol-gel spin-coating methods. The results indicated that the synergistic effects arising from interleaving redox active Co3O4 interlayers between CNx layers involving numerous nano-pores lead to the remarkable electrochemical activity of the composite electrodes
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