علوم و فناوری نساجی و پوشاک

علوم و فناوری نساجی و پوشاک

مطالعه ای تطبیقی بر فرآیند ریسندگی الکتروسانتریفیوژ و الکتروریسی پلی اکریلو نیتریل به عنوان دو روش مختلف ایجاد نانوفیلترهای جدید در پاکسازی محیط زیست

نوع مقاله : مقاله پژوهشی

نویسندگان
سعیده رفیعی 1
پیمان ولی پور 2
1 استادیار، گروه فرش، دانشگاه هنر شیراز، شیراز، ایران
2 دانشیار، دانشکده مهندسی نساجی، پوشاک و مد، واحد قائمشهر، دانشگاه آزاد اسلامی، قائم شهر، ایران
10.22034/jtst.2024.444189.1451
چکیده
استفاده از نانو‌الیاف در سال‌های اخیر رشد چشم‌گیری داشته است. این الیاف مزایای بسیاری نسبت به میکرو‌‌‎ الیاف‌ دارند که مهمترین آن مساحت سطح‌مخصوص آن‌ها است. الکتروریسی فرآیند مرسومی است که برای تهیه نانو‌الیاف پلیمری ظریف و یکنواخت استفاده می‌شود. استفاده از این روش به علت نیاز به اختلاف‌پتانسیل بالا، لزوم وجود جمع کننده رسانای الکتریکی و سرعت تولید نسبتا کم محدود شده است. تکنولوژی ریسندگی سانتریفیوژ به جای استفاده از ولتاژ بالا برای تولید نانوالیاف˓ از نیروی گریز از مرکز استفاده کرده و گزینه‌ای ایمن‌تر و مقرون به صرفه‌تر نسبت به الکتروریسی است. در این مطالعه، نیروهای گریز از مرکز و الکتریکی به طور همزمان برای تولید نانو‌‌‎‍‍الیاف پلی‌‌ ‌اکریلو‌نیتریل به کار گرفته شده و تاثیر افزودن نیروی گریز از مرکز به نیروهای الکتریکی بر قطر نانوالیاف، میزان تولید، درصد تخلخل سطحی و جذب رنگ نانوالیاف پلی‌اکریلو‌نیتریل تولید شده با هر دو روش مقایسه شد. نتایج نشان داد که استفاده از روش الکتروسانتریفیوژ به جای الکتروریسی می‌تواند تا 40% قطر نانوالیاف را کاهش دهد و منجر به افزایش نرخ تولید تا 68% شود. از سویی دیگر، افزایش سرعت چرخش در این روش منجر به کاهش قطر نانو‌الیاف و افزایش مساحت سطح‌ویژه می‌گردد. علاوه بر این، نانوالیاف تولید شده با این روش 33% بیشتر از نانو الیاف الکتروریسی شده در جذب آلاینده رنگی موفق عمل کرد. لذا استفاده از این الیاف به عنوان جاذبی موثر برای پساب‌های رنگی پیشنهاد می‌گردد.
کلیدواژه‌ها
نانوالیاف
الکتروسانتریفوژ
الکتروریسی
پلی اکریلونیتریل
تصفیه پساب رنگی

موضوعات

عنوان مقاله English

Comparative study on electrocentrifuge and electrospinning of Polyacrylonitrile as two different methods of creating new nanofilters in environmental refinement

نویسندگان English

Saeedeh Rafiei 1
Peiman Valipour 2
1 Department of Carpet, Art University of Shiraz, Shiraz, Iran
2 Associate Professor, Department of textile, Apparel and fashion, Qaemshahr branch, Islamic Azad University, Qaemshahr, Iran
چکیده English

The use of nano fibers has grown significantly in recent years. These fibers have many advantages over micro fibers, the most important of which is their specific surface area and greater strength. Electrospinning is a conventional process used to prepare fine and uniform polymer nanofibers. The use of this method is limited due to the need for a high potential difference, the need for an electrically conductive collector, and relatively low production speed. Centrifugal spinning technology uses centrifugal force instead of using high voltage to produce nanofiber polymer and is a safer and more affordable option than electrospinning. In this study, centrifugal and electric forces were used simultaneously to produce polyacrylonitrile nanofibers and the effectS of adding centrifugal force to electric forces on the diameter of nanofibers, production rate, percentage of surface porosity, and dye absorption of polyacrylonitrile nanofibers were compared for both methods. The results showed that the use of electrocentrifuge instead of electrospinning can reduce the diameter of nanofibers by 40% and increase the production rate by 68%. On the other hand, increasing the rotation speed in this method leads to a decrease in the diameter of nanofibers and an increase in the specific surface area. Morever, nanofibers produced by this method were 33% more successful than electrospun nanofibers in absorbing colored pollutants. Therefore, the use of these fibers as an effective absorbent for colored wastes is suggested.

کلیدواژه‌ها English

nanofibers
electrocentrifuge
electrospinning
polyacrylonitrile
colored wastewater treatment
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  • تاریخ دریافت 27 بهمن 1402
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