Design of a novel nozzle prototype for increased productivity and improved Coating quality during electrospinning

Geçtiğimiz son 10 yıl içerisinde, nanolif ile ilgili çalışmalar ve pazar payları (filtre, enerji, tibbi tekstil vb alanları da kapsayacak şekilde) hızlı bir şekilde artmaktadır. Elektroeğirme sistemi, yaygın olarak kullanılan nanolif üretim tekniklerinden biridir. Temelde, elektroeğirme sisteminde iki tip elektrot kullanılmaktadır, şöyle ki; dar uçlu (iğne tipli) nozül sistemi ve nozülsüz sistem. Konvansiyonel dar uçlu nozül sistemi endüstriyel ölçekli üretimlerde, bazı dezavantajlarından ötürü (düşük üretim, homojen olmayan kaplama ve uçların sıklıkla tıkanması gibi) pek tercih edilmemektedir. Diğer taraftan, dar uçlu nozül sistemlerin, düşük maliyeti, oldukça esnek ve çok çeşitli üretim tiplerini üretebiliyor olması ve kullanım kolaylığı, laboratuar ölçekli uygulamalarda tercih edilmesine sebebiyet vermektedir. Nozülsüz sistemin en temel dezavantajı ise oldukça yüksek bir fiyata sahip olması ve üretim esnekliğinin (çeşitliliğinin) dar uçlu nozül sistemindeki kadar geniş olmamasıdır. Bu çalışmada, konvansiyonel dar uçlu nozül sisteminin dezavantajlarını yok edecek şekilde yeni bir prototip nozül sistemi dizayn edilmiştir. Gerçekleştirilen deneysel çalışmalar sonucunda, konvansiyonel dar uçlu nozül sistemine kıyasla yaklaşık 3 kat üretimin arttığı, son derece homojen yüzey kaplamanın, nozül tıkanması ile karşılaşmadan gerçekleştiği ve nozülsüz sisteme kıyasla oldukça düşük bir maliyete sahip olabileceği görülmüştür.

Elektroeğirme prosesinde üretim artışı ve kaplama kalitesinin iyileştirilmesine yönelik yeni nozül dizaynı çalışması

In the last ten years, the market and studies related with nanofibers are considerably increasing in the areas such as filtration, energy harvesting, medical textile. Electrospinning is one of the most widely used techniques for nanofiber production. Mainly, two different types of electrodes in the electrospinning process are used: one is the conventional narrow nozzle and the other is the nozzle- less system. Conventional narrow nozzle is not preferred at industrial applications due to several problems such as low productivity, non-homogeneous coating and clogging. It is mostly preferred at laboratory applications, because of low price, wide production range and easy use. However, main disadvantages of nozzle-less system are high price (cost) and narrow production flexibility (range) compared to conventional narrow nozzle system. In this study, new novel nozzle prototype has been designed and studied to eliminate the disadvantages of conventional narrow nozzle system. From trials, it has been seen that production increased about 3 times compared to conventional narrow nozzle system, while homogenous coating could be obtained without clogging problem. It has also very low cost compared to nozzle-less system.

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Itoh, H., Chan, K.H.K., Kotaki, M., 2011, “Structure and morphology of nylon 6 fibers produced by nozzle-less electrospinning”, Annual Technical Conference - ANTEC, Conference Proceedings, 2, 1121-1124.
Ramakrishna, S., Fujihara, K., Teo, W. E., 2005, “An Introduction to Electrospinning and Nanofibers”, World Scientific Publishing Company, Incorporated, River Edge, NJ, USA. Retrieved from http://0-site.ebrary.com.divit.library.itu.edu.tr.
Zheng, M.H., Zhang, Y.Z., Kotakic, M., 2003, “A review on polymer nanofibers by electrospinning and their applications in nanocomposites”, Composites Science and Technology, 63, 2223–2253.
Thandavamoorthy S., Bhat, G.S., Tock, R.W., 2005, “Electrospinning of Nanofibers”, Journal of Applied Polymer Science, 96, 557–569.
Chen C., Chuanbao, C., Xilan, M., 2006, “Preparation of non-woven mats from all-aqueous silk fibroin solution with electrospinning method”, Polymer, 47, 6322-6327.
Lee, S., Obendorf, S. K., 2006, “Developing protective textile materials as barriers to liquid penetration using melt-electrospinning”, Journal of Applied Polymer Science, 102, 4, 3430-3437.
Kong, C.S., 2009, “Multi-jet ejection and fluctuation in electrospinning of polyvinyl alcohol with various nozzle diameters”, Polymer Engineering and Science, 49, 11, 2286-2287.
Bagherzadeh, R., Latifi, M., Najar, S.S., 2012, “Transport properties of multi-layer fabric based on electrospun nanofiber mats as a breathable barrier textile material”, Textile Research Journal, 82, 1, 70-76.
Yang, L.E., 2005, “Study on Multiple Nozzles Electrospinning”, PQDT.
Nayak, R., Padhye, R., Kyratzis, I.L., 2011, “Recent advances in nanofibre fabrication techniques”, Textile Research Journal, 82, 2, 129-147.
Ucar, N., Ayaz, O., Oksuz, M., 2011, “Production of Elastomeric Polymer fiber Web by Electrospinning Process, Tekstil ve Konfeksiyon, 21(1), 10-15.
Ucar, N., Ayaz, O., Bahar, E., 2012, “Thermal and mechanical properties of composite nanofiber webs and films containing cellulose nanowhiskers”,
Textile Research Journal, first published on June 26, 2012 as doi:10.1177/0040517512450761
Stanislav, P., “Industrial Production Technology for Nanofibers”, http://cdn.intechopen.com/pdfs/23289/InTech-Industrial_production_ technology_f or_nanofibers.pdf (10.02.2013)
Varesano, A., Rombaldoni, F., Mazzuchetti, G., 2010, “Multi-jet nozzle electrospinning on textile substrates: observations on process and nanofibre mat deposition”, Polymer International, 59, 12, 1606-1615.
Enlong, Y., Jingjing, S., Yuan, X., 2010, “Influence of electric field interference on double nozzles electrospinning”, Journal of Applied Polymer Science, 116, 6, 3688-3692.
Pirjo Heikkilae, “Nanostructured Fiber Composites, and Materials for Air filtration”, Doctoral Thesis, Tampere University of Technology.
Bowman, J., Taylor, M., Sharma, V., 2003, “Multispinneret methodologies for high throughput electrospun nanofiber”, Materials Research Society, Warrendale, PA, 15-20.
Ding, B., Kimura, E., Sato, T., 2004, “Fabrication of blend biodegradable nanofibrous nonwoven mats via multi-jet electrospinning”, Polymer, 45, 1895- 1902.
Theron, S., Yarin, A., Zussman, E., 2005, “Multiple jets in electrospinning: Experiment and modeling”, Polymer, 46, 2889-2899.
Teo, W., Gopal, R., Ramaseshan, R., 2007, “A dynamic liquid support system for continuous electrospun yarn fabrication”, Polymer, 48, 3400-3405.
Regele, J., Papac, M., Rickard, M., 2002, “Effects of capillary spacing on EHD spraying from an array of cone jets”, Journal of Aerosol Science, 33, 1471- 1479.
Lee, J.R., Jee, S.Y., Kim, H.J., 2006, KR Patent WO2006123879.
Kim, G.H., Cho, Y.S., Kim, W.D., 2006, “Stability analysis for multi-jets electrospinning process modified with a cylindrical electrode”, European Polymer Journal, 42, 2031-2038.
Tomaszewski, W., Szadkowski, M., 2005, “Investigation of electrospinning with the use of a multi-jet electrospinning head”, Fibres Textiles Eastern Europe, 13, 22.
Bocanegra, R., Galan, D., Marquez, M., 2005, “Multiple electrosprays emitted from an array of holes”, Journal of Aerosol Science, 36, 1387-1399.
Yamashita, Y., Ko, F., Miyake, H., 2008, “Establishment of nanofiber preparation technique by electrospinning”, Sen’i Gakkaishi, 64, 24-28.
Varesano, A., Carletto, R.A., Mazzuchetti, G., 2009, “Experimental investigations on the multi-jet electrospinning process”, Journal of Materials Processing Technology, 209, 5178-5185.
Varesano, A., Rombaldoni, F., Mazzuchetti, G., 2010, “Multi-jet nozzle electrospinning on textile substrates: Observations on process and nanofibre mat deposition”, Polymer International, 59, 1606-1615.
Yang, Y., Jia, Z., Li, Q., 2006, “Multiple jets in electrospinning”, 8th International Conference on Properties and Applications of Dielectric Materials, 940- 940.
Kim, H., Park, J., 2007, A bottom-up electrospinning device, EP Patent 1,740,743, 2007
Yang, Y., Jia, Z., Li, Q., 2010, “A shield ring enhanced equilateral hexagon distributed multi-needle electrospinning spinneret”, IEEE Trans Dielectrics Electrical Insulation, 17, 1592-1601.
http://www.inovenso.com/portfolio-view/nanospinner24/ (20.02.2013)
Dosunmu, O.O., Chase, G.G., Kataphinan, W., 2006, “Electrospinning of polymer nanofibres from multiple jets on a porous tubular surface”, Nanotechnology, 17(4), 1123- 1127.
Jirsak, O., Sanetrnik, F., Lukas, D., 2009, “Method of nanofibres production from a polymer solution using electrostatic spinning and a device for carrying out the method” US Patent 7,585,437, 2009
Jirsak, O., Sanetrnik, F., Lukas, D., 2005, WO2005-024101. Patent (Czech Republic).
Patrick, S., Maly, M., “Production Nozzle-Less Electrosppining Nanofiber Technology”, http://www.elmarco.com/upload/soubory/dokumenty/66-1-1-mrs- fall-boston-09.pdf, (20.02.2013)
http://www.czechtechnologydays.org/sites/default/files/28_Mr.%20Nomoto_Elmarco.pdf, The 5 th Chezch-Japan Technology Days, 25 May 2010 Tokyo (20.02.2013).