توجه: محتویات این صفحه به صورت خودکار پردازش شده و مقاله‌های نویسندگانی با تشابه اسمی، همگی در بخش یکسان نمایش داده می‌شوند.
۱Stability of Antibacterial Effect of PP\Nanosilver Nanocomposites Thin Film Prepared by Melting Meth od
نویسنده(ها): ،
اطلاعات انتشار: ششمین کنگره بین المللی مهندسی شیمی، سال
تعداد صفحات: ۴
In the present study, PP\Nanosilver thin film nanocomposites were successfully prepared by melting method to utilize as antibacterial materials. The antibacterial effect of nanosilver in nanocomposites were evaluated after certain contact time and calculated by reduction percent of two kinds of bacteria i.e Staphylocous aureus and Klebsiela pneumonia. The antibacterial results showed that PP\Nanosilver nanocomposites have excellent antibacterial effect. The XRD results also indicated that crystallinity of polymeric matrix was slightly decreased by increasing the amount of nanosilver, added into the nanocomposite. The SEM micrographs show nearly good dispersion of nanosilver particles with little aggregation in the polymeric matrix.<\div>

۲Modify thermoelectric properties of ZnO with ZrO2 nanoparticles additive
نویسنده(ها): ،
اطلاعات انتشار: پنجمین کنفرانس بین المللی پیشرفتهای علوم و تکنولوژی، سال
تعداد صفحات: ۹
Solid–state reaction processing technique was used to prepare ZnO–doped ZrO2 samples. The XRD patterns of the samples showed that Zr4+ ions substituted Zn2+ ions in the Zinc oxide structure. The SEM results revealed that the grain size of the Zinc oxide decreases with increasing ZrO2 content. Thermoelectric measurements show that the addition of ZrO2 to ZnO led to a significant increase in the electrical conductivity and a decrease in the absolute value of the Seebeck coefficient. Significant reduction of the thermal conductivity was observed as compared to pure ZnO sample. The figure of merit ZT values of Zno–doped ZrO2 samples are higher than the ZnO pure sample, specially at high temperatures , this demonstrated that the ZrO2 addition is fairly effective for enhancing thermoelectric properties<\div>
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