نتایج جستجو برای: continuous electrospinning

تعداد نتایج: 264804  

2008
Tamer Uyar Flemming Besenbacher

By means of the electrospinning technique, micronand nanofibers can be obtained from polymer solutions under a very high electrical field. A special challenge is to produce bead-free uniform fibers since any minor changes in the electrospinning parameters such as slight variations in the polymer solutions and/or electrospinning experimental parameters may result in significant variations in the...

2014
Jin-gang Jiang Tian-hua He Hong-wei Duan Bin Li

Electrospinning technique is currently one of the most important methods for preparing nanofiber. It is important and essential to analyze the distribution of electric field in electrospinning machine. The electric field’s distribution in the typical electrospinning device was calculated and analyzed based on finite element calculation theory of electric field. The electric field is optimized b...

2013
Mohammad Chowdhury George Stylios

Electrospinning is a unique way to producing novel polymer nano fibres with diameter typically in the range from 10 nm to 1500nm. Large length to diameter ratio and small mass to volume ratio of these nanosizes fibres widens the areas of their application to many industrial uses. Nylon 6 nanofibres with diameter ranging from 150nm to 1300 nm were produced by the electrospinning process. The fib...

2011
Jia Xu Jinxian Wang Xiangting Dong Guixia Liu Wensheng Yu

The Polyvinylpyrrolidone (PVP) / Poly (L-lactic acid) (PLLA) ultrafine blend fibers have been prepared for the first time by electrospinning. Trichloromethane was found to be the co-solvent for electrospinning. The PVP/PLLA blend solutions in various ratios were studied for electrospinning into ultrafine fibers. The morphology of the fibers was shown by scanning electron microscope (SEM). It wa...

2018
Saad B Qasim Muhammad S Zafar Shariq Najeeb Zohaib Khurshid Altaf H Shah Shehriar Husain Ihtesham Ur Rehman

Electrospinning has been used for decades to generate nano-fibres via an electrically charged jet of polymer solution. This process is established on a spinning technique, using electrostatic forces to produce fine fibres from polymer solutions. Amongst, the electrospinning of available biopolymers (silk, cellulose, collagen, gelatine and hyaluronic acid), chitosan (CH) has shown a favourable o...

Journal: :Journal of biomaterials science. Polymer edition 2014
Junghyuk Ko Nima Khadem Mohtaram Farid Ahmed Amy Montgomery Michael Carlson Patrick C D Lee Stephanie M Willerth Martin B G Jun

Highly porous poly (ϵ-caprolactone) microfiber scaffolds can be fabricated using electrospinning for tissue engineering applications. Melt electrospinning produces such scaffolds by direct deposition of a polymer melt instead of dissolving the polymer in a solvent as performed during solution electrospinning. The objective of this study was to investigate the significant parameters associated w...

2014
Fu-Juan LIU Ji-Huan HE Lan XU Ping WANG

Recently, nanoporous fibers have been caught much attention as the most promising material in nanotechnology. To our knowledge, nanoporous materials have extremely high surface area and are widely used in different fields, such as filtration, radiation protection, catalysis, sensors, tissue engineering, and drug delivery [1-2]. Electrospinning is an effective method, which can fabricate polymer...

Journal: :Polymer 2021

Polymer processing techniques have experienced continued progress over decades to meet performance requirements in diverse applications. In the same period, various high-performance polymeric materials been developed rapidly. Fabrication of polymer fibers has center attention from origin synthetic polymers, with applications ranging textiles biomedical materials. Electrospinning is a well-known...

2015
Yuanyuan Zhou Hongchang Yao Jianshe Wang Dalu Wang Qian Liu Zhongjun Li

In bone tissue engineering, collagen/hydroxyapatite (HAP) fibrous composite obtained via electrospinning method has been demonstrated to support the cells' adhesion and bone regeneration. However, electrospinning of natural collagen often requires the use of cytotoxic organic solvents, and the HAP crystals were usually aggregated and randomly distributed within a fibrous matrix of collagen, lim...

2010
Yiquan Wu Zexuan Dong Scott Wilson Robert L. Clark

Ordinarily, the electrospinning process generates one-dimensional fibers which assemble into nonwoven membrane structures due to instabilities in the fluid jet. In this paper, an electrospinning procedure is developed that utilizes patterned collectors to produce aligned membranes with designed topological structures. The template-assisted electrospinning approach is demonstrated using polycapr...

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