بررسی تاثیر نانوذرات FMBO بر ساختار و مورفولوژی نانوالیاف کامپوزیتی PVDF/FMBO
محورهای موضوعی : فصلنامه کیفیت و ماندگاری تولیدات کشاورزی و مواد غذاییپریسا علی احمدی پور 1 , رسول جمشیدی گوهری 2 , دادخدا غضنفری 3
1 - دانشجوی دکتری، گروه شیمی آلی، دانشکده شیمی، واحد کرمان، دانشگاه آزاد اسلامی، کرمان، ایران
2 - استادیار، گروه مهندسی شیمی، دانشکده فنی و مهندسی، واحد بردسیر، دانشگاه آزاد اسلامی، بردسیر، ایران
3 - استادیار، گروه شیمی آلی، دانشکده شیمی، واحد کرمان، دانشگاه آزاد اسلامی، کرمان، ایران
کلید واژه: الکتروریسی, نانوذرات, نانوالیاف, فاز, پلی‌وینیلیدن‌فلوراید,
چکیده مقاله :
تحقیقات اخیر نشان داده است نانوالیاف بلند و متخلخل به عنوان یکی از ایمن‌ترین نانو مواد بدلیل تولید قابل کنترل، داشتن سطح ویژه بالا و ساختار ماتریس پیوسته می‌تواند انتخاب مناسبی به عنوان میزبان، جهت طیف گسترده‌ای از تحقیقات باشد. در این پژوهش در ادامه مطالعه پیشین نویسندگان، فازهای ساختاری نانو‌الیافی که توسط ادغام مواد معدنی به ماتریس پلیمری در محدوده صفر تا 0.5 از ترکیب پلی‌وینیلیدین فلوراید (PVDF) و نانوذرات اکسید دوتایی آهن/منگنز (FMBO) سنتز شده بود بررسی و ویژگی‌های آنها با توجه به ساختار و مشخصات سطح با استفاده از SEM و TEM تعیین شد. با توجه باینکه گزارشهای مربوط به تجزیه و تحلیل فازهای β ،α و γ اغلب بر اساس داده‌‌های اندازه‌گیری شده دارای دیدگاه‌‌های متفاوتی است در این تحقیق، با بررسی باندهای ارتعاشی FTIR و مشخصات XRD فازهای ساختاری نانوالیاف الکتروریسی PVDF و PVDF/FMBO ارزیابی و با استفاده از نتایج FTIR به‌طور خاص با بررسی باندهای 762 و 612، 1275 و 1234 cm-1 و تطابق آن با نتایج XRD و مرور تحقیقات منتشر شده به ترتیب فازهای β ،α و γ متمایز گردید.
Recent research has shown that long, porous nanofibers are one of the safest nanomaterials due to their controllable production, high specific surface area and continuous matrix structure. In this study, following the previous study of the authors, Structural phases of nanofibers were synthesized from combination of polyvinylidene fluoride (PVDF) and iron/manganese binary oxide nanoparticles (FMBO) were evaluated. Mineral adsorbents were integrated into polymer matrix in the range of zero to 0.5. The properties of nanofibers according to the structure and surface characteristics using SEM and TEM were determined. In this study, structural phases of PVDF and PVDF/FMBO electrospinning nanofibers were distinguished by examining the FTIR vibration bands and analyzing the XRD characteristics due to the different reports on the analysis of α, β and γ phases according to the measured data. The results of FTIR, specifically by examining bands 762 and 612, 1275 and 1234 cm-1 and its compliance with XRD results and reviewing published research the α, β and γ phases were distinguished, respectively.
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