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Journal articles on the topic 'Melt electrospinning'

Author: Grafiati
Published: 4 June 2021
Last updated: 26 January 2023

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1

Hutmacher, Dietmar W., and Paul D. Dalton. "Melt Electrospinning." Chemistry - An Asian Journal 6, no. 1 (November 15, 2010): 44–56. http://dx.doi.org/10.1002/asia.201000436.

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2

OGATA, NOBUO, and NAOKI SHIMADA. "Melt-electrospinning Method." FIBER 64, no. 2 (2008): P.81—P.84. http://dx.doi.org/10.2115/fiber.64.p_81.

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3

Mingjun, Chen, Zhang Youchen, Li Haoyi, Li Xiangnan, Ding Yumei, Mahmoud M. Bubakir, and Yang Weimin. "An example of industrialization of melt electrospinning: Polymer melt differential electrospinning." Advanced Industrial and Engineering Polymer Research 2, no. 3 (July 2019): 110–15. http://dx.doi.org/10.1016/j.aiepr.2019.06.002.

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4

Hutmacher, Dietmar W., and Paul D. Dalton. "ChemInform Abstract: Melt Electrospinning." ChemInform 42, no. 13 (March 3, 2011): no. http://dx.doi.org/10.1002/chin.201113273.

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5

Wang, Xiao-fei, and Zheng-ming Huang. "Melt-electrospinning of PMMA." Chinese Journal of Polymer Science 28, no. 1 (December 11, 2009): 45–53. http://dx.doi.org/10.1007/s10118-010-8208-9.

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6

Yu, Zhao Jie, Lin Jie Wang, Ling Ling Sun, Yi Hong Lin, Wei Wang, Gao Feng Zheng, and Dao Heng Sun. "Melt Electrohydrodynamic Direct-Writing Micro/Nano Fiber with Restriction of Heated Sheath Gas." Key Engineering Materials 645-646 (May 2015): 45–51. http://dx.doi.org/10.4028/www.scientific.net/kem.645-646.45.

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Melt electrospinning is a novel technology in the field of 1D micro/nanostructure fabrication. Decreasing the diameter and promoting surface morphology of melt fiber are the key for the application of melt electrospinning technology. Heated sheath gas is introduced to build up melt electrospinning direct-write technology, and then orderly micro/nanofibers can be direct-written. The heated sheath gas provided a good way to increase the temperature of melt jet, by which solidification can be slowed. With the help of heated sheath gas, the diameter of melt fiber can be decreased. The affects of process parameters on the diameter of melt electrospinning fiber was investigated, the diameter of melt electrospinning fiber increased with the increasing of temperature of spinneret and feed rate, but decreased with the increasing of voltage and distance between spinneret and collector. Heated sheath gas is an excellent method to promote the application of melt electrospinning.
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7

Xu, Huaizhong, Masaki Yamamoto, and Hideki Yamane. "Melt electrospinning: Electrodynamics and spinnability." Polymer 132 (December 2017): 206–15. http://dx.doi.org/10.1016/j.polymer.2017.11.006.

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8

Zhang, Li-Hua, Xiao-Peng Duan, Xu Yan, Miao Yu, Xin Ning, Yong Zhao, and Yun-Ze Long. "Recent advances in melt electrospinning." RSC Advances 6, no. 58 (2016): 53400–53414. http://dx.doi.org/10.1039/c6ra09558e.

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With the emergence of one-dimensional (1D) functional nanomaterials and their promising applications, electrospinning (e-spinning) technology and electrospun (e-spun) ultrathin fibers have been widely explored.
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9

An, Ying, Shaoyang Yu, Shoumeng Li, Xun Wang, Weimin Yang, Maryam Yousefzadeh, Mahmoud M. Bubakir, and Haoyi Li. "Melt-electrospinning of Polyphenylene Sulfide." Fibers and Polymers 19, no. 12 (December 2018): 2507–13. http://dx.doi.org/10.1007/s12221-018-8619-8.

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10

Singer, Julia C., Andreas Ringk, Reiner Giesa, and Hans-Werner Schmidt. "Melt Electrospinning of Small Molecules." Macromolecular Materials and Engineering 300, no. 3 (January 13, 2015): 259–76. http://dx.doi.org/10.1002/mame.201400296.

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11

Ibrahim, Yasseen, Essraa Hussein, Moustafa Zagho, Ghada Abdo, and Ahmed Elzatahry. "Melt Electrospinning Designs for Nanofiber Fabrication for Different Applications." International Journal of Molecular Sciences 20, no. 10 (May 17, 2019): 2455. http://dx.doi.org/10.3390/ijms20102455.

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Nanofibers have been attracting growing attention owing to their outstanding physicochemical and structural properties as well as diverse and intriguing applications. Electrospinning has been known as a simple, flexible, and multipurpose technique for the fabrication of submicro scale fibers. Throughout the last two decades, numerous investigations have focused on the employment of electrospinning techniques to improve the characteristics of fabricated fibers. This review highlights the state of the art of melt electrospinning and clarifies the major categories based on multitemperature control, gas assist, laser melt, coaxial, and needleless designs. In addition, we represent the effect of melt electrospinning process parameters on the properties of produced fibers. Finally, this review summarizes the challenges and obstacles connected to the melt electrospinning technique.
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12

Chen, Ting, Hong-Mei Sun, and Li-Li Wu. "A melt blowing-electrospinning approach to fabricating nanofibers." Thermal Science 20, no. 3 (2016): 1010–11. http://dx.doi.org/10.2298/tsci1603010c.

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A polymer drawing model for melt blowing-electrospinning is established. The fiber diameters are predicted and measured. The results show that the predicted diameters show good agreements with the measured diameters. Fibers fabricated with electrospinning are finer than those without electrospinning, giving a new way to the mass production of nanofibers.
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13

Hao, Ming Feng, Yong Liu, Xue Tao He, Yu Mei Ding, and Wei Min Yang. "Factors Influencing Diameter of Polypropylene Fiber in Melt Electrospinning." Advanced Materials Research 221 (March 2011): 129–34. http://dx.doi.org/10.4028/www.scientific.net/amr.221.129.

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Melt electrospinning is a safer, more environmentally friendly and cheaper alternative to solution electrospinning in producing superfine fibers. In this paper, a novel melt electrospinning device was used, which has higher efficiency than conventional equipment. Polypropylene is widely used in many fields and it is difficult to find a suitable solvent for its solution electrospinning at room temperature, so it was chosen in this study. The influences of the electrospinning parameters such as temperature and voltage on the diameter of the spinning fibers have been studied. Temperatures higher than normal processing temperatures were used in present electrospinning system in order to reduce the viscosity of the polymer melt sufficiently. Good quality fibers with smooth surfaces and with diameters mostly smaller than 10 microns were spun successfully. It was found that there was an optimum point for the spinning voltage (70-80KV) and the temperature (230-260°C) to get fine fibers.
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14

Yamashita, Yoshihiro, Katsuhisa Tokumitsu, Hiroshi Shibata, and Hajime Miyake. "Melt Electrospinning by Cylinder Heating Method." Transactions of the Materials Research Society of Japan 37, no. 1 (2012): 61–64. http://dx.doi.org/10.14723/tmrsj.37.61.

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15

Fang, Jian, Li Zhang, David Sutton, Xungai Wang, and Tong Lin. "Needleless Melt-Electrospinning of Polypropylene Nanofibres." Journal of Nanomaterials 2012 (2012): 1–9. http://dx.doi.org/10.1155/2012/382639.

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Polypropylene (PP) nanofibres have been electrospun from molten PP using a needleless melt-electrospinning setup containing a rotary metal disc spinneret. The influence of the disc spinneret (e.g., disc material and diameter), operating parameters (e.g., applied voltage, spinning distance), and a cationic surfactant on the fibre formation and average fibre diameter were examined. It was shown that the metal material used for making the disc spinneret had a significant effect on the fibre formation. Although the applied voltage had little effect on the fibre diameter, the spinning distance affected the fibre diameter considerably, with shorter spinning distance resulting in finer fibres. When a small amount of cationic surfactant (dodecyl trimethyl ammonium bromide) was added to the PP melt for melt-electrospinning, the fibre diameter was reduced considerably. The finest fibres produced from this system were400±290 nm. This novel melt-electrospinning setup may provide a continuous and efficient method to produce PP nanofibres.
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16

Zhmayev, Eduard, Daehwan Cho, and Yong Lak Joo. "Electrohydrodynamic quenching in polymer melt electrospinning." Physics of Fluids 23, no. 7 (July 2011): 073102. http://dx.doi.org/10.1063/1.3614560.

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17

Karchin, Ari, Felix I. Simonovsky, Buddy D. Ratner, and Joan E. Sanders. "Melt electrospinning of biodegradable polyurethane scaffolds." Acta Biomaterialia 7, no. 9 (September 2011): 3277–84. http://dx.doi.org/10.1016/j.actbio.2011.05.017.

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18

Bachs-Herrera, Anna, Omid Yousefzade, Luis J. del Valle, and Jordi Puiggali. "Melt Electrospinning of Polymers: Blends, Nanocomposites, Additives and Applications." Applied Sciences 11, no. 4 (February 18, 2021): 1808. http://dx.doi.org/10.3390/app11041808.

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Melt electrospinning has been developed in the last decade as an eco-friendly and solvent-free process to fill the gap between the advantages of solution electrospinning and the need of a cost-effective technique for industrial applications. Although the benefits of using melt electrospinning compared to solution electrospinning are impressive, there are still challenges that should be solved. These mainly concern to the improvement of polymer melt processability with reduction of polymer degradation and enhancement of fiber stability; and the achievement of a good control over the fiber size and especially for the production of large scale ultrafine fibers. This review is focused in the last research works discussing the different melt processing techniques, the most significant melt processing parameters, the incorporation of different additives (e.g., viscosity and conductivity modifiers), the development of polymer blends and nanocomposites, the new potential applications and the use of drug-loaded melt electrospun scaffolds for biomedical applications.
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19

Nayak, Rajkishore, Ilias Louis Kyratzis, Yen Bach Truong, Rajiv Padhye, Lyndon Arnold, Gary Peeters, Lance Nichols, and Mike O'Shea. "Fabrication and Characterisation of Nanofibres by Meltblowing and Melt Electrospinning." Advanced Materials Research 472-475 (February 2012): 1294–99. http://dx.doi.org/10.4028/www.scientific.net/amr.472-475.1294.

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Fabrication of nanofibres has become a growing area of research because of their unique properties (i.e. smaller fibre diameter and higher surface area) and potential applications in various fields such as filtration, composites and biomedical applications. Although several processes exist for fabrication of nanofibres, electrospinning is considered to be the simplest. Most of the research in electrospinning is based on solution rather than melt. The feasibility of fabricating nanofibres of polypropylene (PP) by meltblowing and melt electrospinning has been investigated in this paper. In meltblowing different fluids such as air and water were fed at different inlets along the extrusion barrel for the fabrication of nanofibres whereas in melt electrospinning it was achieved by using different additives. The results obtained by using water in meltblowing were better with respect to the morphology and fibre uniformity compared to air. In melt electrospinning although all the additives (i.e. sodium oleate (SO), polyethylene glycol (PEG) and polydimethyl siloxane (PDMS)) helped in reducing the fibre diameter, only SO was effective to reduce the diameter down to nanoscale. It was concluded that both the solvent-free processes have the potential to substantially increase the production of nanofibres compared to solution electrospinning.
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20

Mijović, Budimir, Josip Jelić, Petra Brać, and Snježana Kirin. "Melt electrospun fibrous architectures with target geometries." IOP Conference Series: Materials Science and Engineering 1208, no. 1 (November 1, 2021): 012004. http://dx.doi.org/10.1088/1757-899x/1208/1/012004.

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Abstract In the melt electrospinning technique, the polymer melt is stretched under high voltage and the cooled to form microfibers structures with a fibre diameter in the tens of micrometres range, although some studies have reported values ranging from hundreds of nanometres to hundreds of micrometres. In this respect, this technique has significance in the biomedical field, where tissue engineering scaffolds with bimodal (nano and micro) fibrous structures are preferred in regard to cell adhesion, spreading and infiltration to final tissue reconstruction. This paper gives a review of recently reported melt electrospinning devices, especially those based on the direct writing principle, and of their comparison with the new melt Spraybase electrospinning device. The Spraybase device provides high precision melt jet deposition into 2D and 3D programmed architectures, with versatile translation speeds of the collector plate in the X-Y and the melt head in the Z direction. The melt spun fibrous architectures are designed depending on the types of tissue cells used in scaffold development.
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21

Asai, Hanako, Marina Kikuchi, Naoki Shimada, and Koji Nakane. "Effect of melt and solution electrospinning on the formation and structure of poly(vinylidene fluoride) fibres." RSC Advances 7, no. 29 (2017): 17593–98. http://dx.doi.org/10.1039/c7ra01299c.

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22

Balakrishnan, N. K., K. Koenig, and G. Seide. "The Effect of Dye and Pigment Concentrations on the Diameter of Melt-Electrospun Polylactic Acid Fibers." Polymers 12, no. 10 (October 11, 2020): 2321. http://dx.doi.org/10.3390/polym12102321.

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Sub-microfibers and nanofibers produce more breathable fabrics than coarse fibers and are therefore widely used in the textiles industry. They are prepared by electrospinning using a polymer solution or melt. Solution electrospinning produces finer fibers but requires toxic solvents. Melt electrospinning is more environmentally friendly, but is also technically challenging due to the low electrical conductivity and high viscosity of the polymer melt. Here we describe the use of colorants as additives to improve the electrical conductivity of polylactic acid (PLA). The addition of colorants increased the viscosity of the melt by >100%, but reduced the electrical resistance by >80% compared to pure PLA (5 GΩ). The lowest electrical resistance of 50 MΩ was achieved using a composite containing 3% (w/w) indigo. However, the thinnest fibers (52.5 µm, 53% thinner than pure PLA fibers) were obtained by adding 1% (w/w) alizarin. Scanning electron microscopy revealed that fibers containing indigo featured polymer aggregates that inhibited electrical conductivity, and thus increased the fiber diameter. With further improvements to avoid aggregation, the proposed melt electrospinning process could complement or even replace industrial solution electrospinning and dyeing.
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23

Manea, L. R., A. Bertea, A. Popa, and A. P. Bertea. "Melt Electrospinning – Characteristics, Application Areas and Perspectives." IOP Conference Series: Materials Science and Engineering 374 (June 2018): 012063. http://dx.doi.org/10.1088/1757-899x/374/1/012063.

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24

Zhmayev, Eduard, Daehwan Cho, and Yong Lak Joo. "Nanofibers from gas-assisted polymer melt electrospinning." Polymer 51, no. 18 (August 2010): 4140–44. http://dx.doi.org/10.1016/j.polymer.2010.06.058.

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25

Liu, Zhaoxiang, Yong Liu, Yumei Ding, Haoyi Li, Hongbo Chen, and Weimin Yang. "Tug of war effect in melt electrospinning." Journal of Non-Newtonian Fluid Mechanics 202 (December 2013): 131–36. http://dx.doi.org/10.1016/j.jnnfm.2013.10.001.

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26

Nayak, Rajkishore, Ilias Louis Kyratzis, Yen Bach Truong, Rajiv Padhye, and Lyndon Arnold. "Melt-electrospinning of polypropylene with conductive additives." Journal of Materials Science 47, no. 17 (May 23, 2012): 6387–96. http://dx.doi.org/10.1007/s10853-012-6563-3.

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27

Morikawa, Kai, Aniruddh Vashisth, Taruna Bansala, Pawan Verma, Micah J. Green, and Mohammad Naraghi. "Melt Electrospinning Polyethylene Fibers in Inert Atmosphere." Macromolecular Materials and Engineering 305, no. 12 (September 23, 2020): 2000106. http://dx.doi.org/10.1002/mame.202000106.

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28

Brown, Toby D., Paul D. Dalton, and Dietmar W. Hutmacher. "Direct Writing By Way of Melt Electrospinning." Advanced Materials 23, no. 47 (November 18, 2011): 5651–57. http://dx.doi.org/10.1002/adma.201103482.

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29

Liu, Yong, Xiuhong Li, and Seeram Ramakrishna. "Melt electrospinning in a parallel electric field." Journal of Polymer Science Part B: Polymer Physics 52, no. 14 (May 27, 2014): 946–52. http://dx.doi.org/10.1002/polb.23511.

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30

Li, Ye-Ming, Xiao-Xiong Wang, Shu-Xin Yu, Ying-Tao Zhao, Xu Yan, Jie Zheng, Miao Yu, Shi-Ying Yan, and Yun-Ze Long. "Bubble Melt Electrospinning for Production of Polymer Microfibers." Polymers 10, no. 11 (November 10, 2018): 1246. http://dx.doi.org/10.3390/polym10111246.

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In this paper, we report an interesting bubble melt electrospinning (e-spinning) to produce polymer microfibers. Usually, melt e-spinning for fabricating ultrafine fibers needs “Taylor cone”, which is formed on the tip of the spinneret. The spinneret is also the bottleneck for mass production in melt e-spinning. In this work, a metal needle-free method was tried in the melt e-spinning process. The “Taylor cone” was formed on the surface of the broken polymer melt bubble, which was produced by an airflow. With the applied voltage ranging from 18 to 25 kV, the heating temperature was about 210–250 °C, and polyurethane (TPU) and polylactic acid (PLA) microfibers were successfully fabricated by this new melt e-spinning technique. During the melt e-spinning process, polymer melt jets ejected from the burst bubbles could be observed with a high-speed camera. Then, polymer microfibers could be obtained on the grounded collector. The fiber diameter ranged from 45 down to 5 μm. The results indicate that bubble melt e-spinning may be a promising method for needleless production in melt e-spinning.
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31

Liu, Yong, Zhao Xiang Liu, Liang Deng, Ke Jian Wang, and Wei Min Yang. "Effect of Different Factors on Falling Process of Melt Electrospinning Jet." Materials Science Forum 745-746 (February 2013): 407–11. http://dx.doi.org/10.4028/www.scientific.net/msf.745-746.407.

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The falling process of melt electrospinning jet is different from those of solution electrospinning in which there is apparent solvent volatilization. In order to study the factors influencing on the forming process of fibers in melt electrospinning, dropping process of fibers is recorded and analyzed via high speed video camera in the article. Results showed that there was an optimal spinning temperature for melt electrospinning of the polymer; the greater the voltage was, the more obvious stretching action on jet was. However, the voltage did not exceed a certain value, because there was a spinnable voltage limit corresponding to every receiving distance. When the spinning distance was generally short, the jet swinging radius decreased with increasing spinning distance; when the spinning distance was long, the jet was subject to the influence of the environment temperature easily. The changes of viscosity had dominant influence on the motion of jet.
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32

Yoon, Young Il, Ko Eun Park, Seung Jin Lee, and Won Ho Park. "Fabrication of Microfibrous and Nano-/Microfibrous Scaffolds: Melt and Hybrid Electrospinning and Surface Modification of Poly(L-lactic acid) with Plasticizer." BioMed Research International 2013 (2013): 1–10. http://dx.doi.org/10.1155/2013/309048.

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Biodegradable poly(L-lactic acid) (PLA) fibrous scaffolds were prepared by electrospinning from a PLA melt containing poly(ethylene glycol) (PEG) as a plasticizer to obtain thinner fibers. The effects of PEG on the melt electrospinning of PLA were examined in terms of the melt viscosity and fiber diameter. Among the parameters, the content of PEG had a more significant effect on the average fiber diameter and its distribution than those of the spinning temperature. Furthermore, nano-/microfibrous silk fibroin (SF)/PLA and PLA/PLA composite scaffolds were fabricated by hybrid electrospinning, which involved a combination of solution electrospinning and melt electrospinning. The SF/PLA (20/80) scaffolds consisted of a randomly oriented structure of PLA microfibers (average fiber diameter = 8.9 µm) and SF nanofibers (average fiber diameter = 820 nm). The PLA nano-/microfiber (20/80) scaffolds were found to have similar pore parameters to the PLA microfiber scaffolds. The PLA scaffolds were treated with plasma in the presence of either oxygen or ammonia gas to modify the surface of the fibers. This approach of controlling the surface properties and diameter of fibers could be useful in the design and tailoring of novel scaffolds for tissue engineering.
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33

Zhao, Na, Tai Qi Liu, and Rui Xue Liu. "Study of Preparation Metallocene Based LLDPE Extra-Fibers by Melt Electrospinning Process." Advanced Materials Research 512-515 (May 2012): 2424–27. http://dx.doi.org/10.4028/www.scientific.net/amr.512-515.2424.

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In this paper, metallocene based LLDPE (mLLDPE) extra-fine fiber , which can not be processed by a common solution electrospinning method.was successfully prepared via a melt electrospinning method. First, a self-designed melt electrospinning device was manufctured and it was used to produce mLLDPE fibers . Then LLDPE extra-fine fiber was successfully prepared by addition of viscosity-reducing additive such as wax, and the resulted fiber was charctered by SEM. Last, the optimal parameters for the preparation of mLLDPE fiber was determined. The experimental results show that commercial mLLDPE can hardly be processed to fibers because of its high viscosity. The diameter and morphology of resulted mLLDPE electrospun fibers depend on the electrospinning parameters such as electric field strength and collecting distance.
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34

Christiansen, Lasse, Leonid Gurevich, Deyong Wang, and Peter Fojan. "Melt Electrospinning of PET and Composite PET-Aerogel Fibers: An Experimental and Modeling Study." Materials 14, no. 16 (August 20, 2021): 4699. http://dx.doi.org/10.3390/ma14164699.

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Increasingly advanced applications of polymer fibers are driving the demand for new, high-performance fiber types. One way to produce polymer fibers is by electrospinning from polymer solutions and melts. Polymer melt electrospinning produces fibers with small diameters through solvent-free processing and has applications within different fields, ranging from textile and construction, to the biotech and pharmaceutical industries. Modeling of the electrospinning process has been mainly limited to simulations of geometry-dependent electric field distributions. The associated large change in viscosity upon fiber formation and elongation is a key issue governing the electrospinning process, apart from other environmental factors. This paper investigates the melt electrospinning of aerogel-containing fibers and proposes a logistic viscosity model approach with parametric ramping in a finite element method (FEM) simulation. The formation of melt electrospun fibers is studied with regard to the spinning temperature and the distance to the collector. The formation of PET-Aerogel composite fibers by pneumatic transport is demonstrated, and the critical parameter is found to be the temperature of the gas phase. The experimental results form the basis for the electrospinning model, which is shown to reproduce the trend for the fiber diameter, both for polymer as well as polymer-aerogel composites.
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35

Koenig, Kylie, Fabian Langensiepen, and Gunnar Seide. "Pilot-scale production of polylactic acid nanofibers by melt electrospinning." e-Polymers 20, no. 1 (June 2, 2020): 233–41. http://dx.doi.org/10.1515/epoly-2020-0030.

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AbstractMelt electrospinning has been used to manufacture fibers with diameters in the low micrometer range, but the production of submicrometer fibers has proven more challenging. In this study, we investigated the feasibility of fabricating polylactic acid nanofibers using polymer grades with the increasing melt flow rates (15–85 g/10 min at 210°C) by melt electrospinning with a 600-nozzle pilot-scale device featuring an integrated climate control system realized as a glass chamber around the spinneret. Previous experiments using this device without appropriate climate control produced fibers exceeding 1 µm in diameter because the drawing of fibers was inhibited by the rapid cooling of the polymer melt. The integrated glass chamber created a temperature gradient exceeding the glass transition temperature of the polymer, which enhanced the drawing of fibers below the spinneret. An average fiber diameter of 810 nm was achieved using Ingeo Biopolymer 6252, and the finest individual fiber (420 nm in diameter) was produced at a spin pump speed of 5 rpm and a spinneret set temperature of 230°C. We have therefore demonstrated the innovative performance of our pilot-scale melt-electrospinning device, which bridges the gap between laboratory-scale and pilot-scale manufacturing and achieves fiber diameters comparable to those produced by conventional solution electrospinning.
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36

Deng, Rongjian, Yong Liu, Yumei Ding, Pengcheng Xie, Lu Luo, and Weimin Yang. "Melt electrospinning of low-density polyethylene having a low-melt flow index." Journal of Applied Polymer Science 114, no. 1 (October 5, 2009): 166–75. http://dx.doi.org/10.1002/app.29864.

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37

Balakrishnan, Naveen Kumar, Maike-Elisa Ostheller, Niccolo Aldeghi, Christian Schmitz, Robert Groten, and Gunnar Seide. "Pilot-Scale Electrospinning of PLA Using Biobased Dyes as Multifunctional Additives." Polymers 14, no. 15 (July 23, 2022): 2989. http://dx.doi.org/10.3390/polym14152989.

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Fibers with diameters in the lower micrometer range have unique properties suitable for applications in the textile and biomedical industries. Such fibers are usually produced by solution electrospinning, but this process is environmentally harmful because it requires the use of toxic solvents. Melt electrospinning is a sustainable alternative but the high viscosity and low electrical conductivity of molten polymers produce thicker fibers. Here, we used multifunctional biobased dyes as additives to improve the spinnability of polylactic acid (PLA), improving the spinnability by reducing the electrical resistance of the melt, and incorporating antibacterial activity against Staphylococcus aureus. Spinning trials using our 600-nozzle pilot-scale melt-electrospinning device showed that the addition of dyes produced narrower fibers in the resulting fiber web, with a minimum diameter of ~9 µm for the fiber containing 3% (w/w) of curcumin. The reduction in diameter was low at lower throughputs but more significant at higher throughputs, where the diameter reduced from 46 µm to approximately 23 µm. Although all three dyes showed antibacterial activity, only the PLA melt containing 5% (w/w) curcumin retained this property in the fiber web. Our results provide the basis for the development of environmentally friendly melt-electrospinning processes for the pilot-scale manufacturing of microfibers.
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38

Koenig, Kylie, Naveen Balakrishnan, Stefan Hermanns, Fabian Langensiepen, and Gunnar Seide. "Biobased Dyes as Conductive Additives to Reduce the Diameter of Polylactic Acid Fibers during Melt Electrospinning." Materials 13, no. 5 (February 27, 2020): 1055. http://dx.doi.org/10.3390/ma13051055.

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Electrospinning is widely used for the manufacture of fibers in the low-micrometer to nanometer range, allowing the fabrication of flexible materials with a high surface area. A distinction is made between solution and melt electrospinning. The former produces thinner fibers but requires hazardous solvents; whereas the latter is more environmentally sustainable because solvents are not required. However, the viscous melt requires high process temperatures and its low conductivity leads to thicker fibers. Here, we describe the first use of the biobased dyes alizarin; hematoxylin and quercetin as conductive additives to reduce the diameter of polylactic acid (PLA) fibers produced by melt electrospinning; combined with a biobased plasticizer to reduce the melt viscosity. The formation of a Taylor cone followed by continuous fiber deposition was observed for all PLA compounds; reducing the fiber diameter by up to 77% compared to pure PLA. The smallest average fiber diameter of 16.04 µm was achieved by adding 2% (w/w) hematoxylin. Comparative analysis revealed that the melt-electrospun fibers had a low degree of crystallinity compared to drawn filament controls—resembling partially oriented filaments. Our results form the basis of an economical and environmentally friendly process that could ultimately, provide an alternative to industrial solution electrospinning
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39

Wang, Xiao Na, Yang Xu, Qu Fu Wei, and Yi Bing Cai. "Study on Technological Parameters Effecting on Fiber Diameter of Melt Electrospinning." Advanced Materials Research 332-334 (September 2011): 1550–56. http://dx.doi.org/10.4028/www.scientific.net/amr.332-334.1550.

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Poly (Lactic Acid) ultrafine fibers were obtained from melt electrospinning in the present work, using a home-made device. To study the effect of main technological parameters on fiber diameter in melt electrospinning, orthogonal design was adopted to examine spinning distance, spinning voltage and melt temperature. Meanwhile, the motion of the jet flow was recorded to help explain the influencing mechanism. Results showed that spinning voltage had the highest impact on the average diameters compared to other considered parameters (spinning distance and melt temperature). fibers with smallest diameter could be produced at 15 kV, 10 cm and 190 o C.
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40

Kim, Jeong Hwa, Gwang June Shin, Martin Byung-Guk Jun, and Young Hun Jeong. "Fabrication of Thick Microfiber Mats Using Melt-Electrospinning." Journal of the Korean Society for Precision Engineering 38, no. 7 (July 1, 2021): 529–35. http://dx.doi.org/10.7736/jkspe.020.110.

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41

Muerza-Cascante, M. Lourdes, David Haylock, Dietmar W. Hutmacher, and Paul D. Dalton. "Melt Electrospinning and Its Technologization in Tissue Engineering." Tissue Engineering Part B: Reviews 21, no. 2 (April 2015): 187–202. http://dx.doi.org/10.1089/ten.teb.2014.0347.

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42

Lyons, Jason, and Frank Ko. "Feature Article: Melt Electrospinning of Polymers: A Review." Polymer News 30, no. 6 (June 2005): 170–78. http://dx.doi.org/10.1080/00323910500458666.

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43

Zhmayev, Eduard, Daehwan Cho, and Yong Lak Joo. "Modeling of melt electrospinning for semi-crystalline polymers." Polymer 51, no. 1 (January 2010): 274–90. http://dx.doi.org/10.1016/j.polymer.2009.11.025.

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44

Bhullar, Sukhwinder Kaur, Burçak Kaya, and Martin Byung-Guk Jun. "Development of Bioactive Packaging Structure Using Melt Electrospinning." Journal of Polymers and the Environment 23, no. 3 (March 13, 2015): 416–23. http://dx.doi.org/10.1007/s10924-015-0713-z.

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45

Li, Kaili, Yulong Xu, Yong Liu, Mohamedazeem M. Mohideen, Haifeng He, and Seeram Ramakrishna. "Dissipative particle dynamics simulations of centrifugal melt electrospinning." Journal of Materials Science 54, no. 13 (April 9, 2019): 9958–68. http://dx.doi.org/10.1007/s10853-019-03603-8.

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46

Doustgani, Amir, and Ebrahim Ahmadi. "Melt electrospinning process optimization of polylactic acid nanofibers." Journal of Industrial Textiles 45, no. 4 (October 5, 2015): 626–34. http://dx.doi.org/10.1177/1528083715610297.

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47

Ogata, Nobuo, Naoki Shimada, Shinji Yamaguchi, Koji Nakane, and Takashi Ogihara. "Melt-electrospinning of poly(ethylene terephthalate) and polyalirate." Journal of Applied Polymer Science 105, no. 3 (2007): 1127–32. http://dx.doi.org/10.1002/app.26150.

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48

Grujović, Nenad, Fatima Živić, Matthias Schnabelrauch, Torsten Walter, Ralf Wyrwa, Nikola Palić, and Lazar Ocokoljić. "CUSTOMIZATION OF ELECTROSPINNING FOR TISSUE ENGINEERING." Facta Universitatis, Series: Mechanical Engineering 16, no. 3 (December 13, 2018): 321. http://dx.doi.org/10.22190/fume180823032g.

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This paper deals with two electrospinning technologies: the melt electrospinning with a customized jet head, adapted from the fused deposition modeling (FDM) 3D printer, in comparison with the standard solution electrospinning, aiming at fabrication of tissue engineering scaffolds. The resulting fibers are compared. The influence of the collector properties on those of the fabricated scaffold is investigated. The resulting electrospun fibers exhibit different characteristics such as morphology and thickness, depending on the technology. The micro-fibers are produced by the melt electrospinning with an inbuilt 3D printer jet head, whereas the solution electrospinning has produced nano- and micro-fibers. The scaffolds fabricated on the rotating drum collector exhibit a more ordered structure as well as thinner fibers than those produced on the stationary plate collector. Further investigations should aim at fabrication of porous hollow fibers and tissue engineering scaffolds with controlled porosity and properties.
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49

Afghah, Ferdows, Caner Dikyol, Mine Altunbek, and Bahattin Koc. "Biomimicry in Bio-Manufacturing: Developments in Melt Electrospinning Writing Technology Towards Hybrid Biomanufacturing." Applied Sciences 9, no. 17 (August 28, 2019): 3540. http://dx.doi.org/10.3390/app9173540.

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Melt electrospinning writing has been emerged as a promising technique in the field of tissue engineering, with the capability of fabricating controllable and highly ordered complex three-dimensional geometries from a wide range of polymers. This three-dimensional (3D) printing method can be used to fabricate scaffolds biomimicking extracellular matrix of replaced tissue with the required mechanical properties. However, controlled and homogeneous cell attachment on melt electrospun fibers is a challenge. The combination of melt electrospinning writing with other tissue engineering approaches, called hybrid biomanufacturing, has introduced new perspectives and increased its potential applications in tissue engineering. In this review, principles and key parameters, challenges, and opportunities of melt electrospinning writing, and particularly, recent approaches and materials in this field are introduced. Subsequently, hybrid biomanufacturing strategies are presented for improved biological and mechanical properties of the manufactured porous structures. An overview of the possible hybrid setups and applications, future perspective of hybrid processes, guidelines, and opportunities in different areas of tissue/organ engineering are also highlighted.
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Liu, Zhaoxiang, Haoyi Li, Weifeng Wu, Hongbo Chen, Yumei Ding, and Weimin Yang. "Effect of electric field on gas-assisted melt differential electrospinning with hollow disc electrode." Journal of Polymer Engineering 35, no. 1 (January 1, 2015): 61–70. http://dx.doi.org/10.1515/polyeng-2014-0015.

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Abstract The concept of a gas-assisted melt differential electrospinning device with hollow disc electrode is presented. As the electric field force is the only drawing force stretching polymer melt jet to fibers, it is necessary to study the distribution and electric field intensity of the electric field created in the spinning region caused by the hollow disc electrode. A series of electric field simulations, including the distribution of the electric field and the relationship between electric field intensity and various parameters were carried out by the finite element method. In addition, experiments of melt electrospinning were conducted, mainly focusing on several electrical parameters affecting the fiber diameter. The results of simulations were compared with those of experiments, proving experimental phenomena and conjectures. The results of simulations and experiments were mutually corroborated and consistent with each other. All results provided significant support and basis for future exploration and development of melt electrospinning.
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