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Title: A novel mathematical model for controllable near-field electrospinning

Near-field electrospinning (NFES) had better controllability than conventional electrospinning. However, due to the lack of guidance of theoretical model, precise deposition of micro/nano fibers could only accomplished by experience. To analyze the behavior of charged jet in NFES using mathematical model, the momentum balance equation was simplified and a new expression between jet cross-sectional radius and axial position was derived. Using this new expression and mass conservation equation, expressions for jet cross-sectional radius and velocity were derived in terms of axial position and initial jet acceleration in the form of exponential functions. Based on Slender-body theory and Giesekus model, a quadratic equation for initial jet acceleration was acquired. With the proposed model, it was able to accurately predict the diameter and velocity of polymer fibers in NFES, and mathematical analysis rather than experimental methods could be applied to study the effects of the process parameters in NFES. Moreover, the movement velocity of the collector stage can be regulated by mathematical model rather than experience. Therefore, the model proposed in this paper had important guiding significance to precise deposition of polymer fibers.
Authors:
 [1] ;  [2] ; ;  [3] ;  [1] ;  [4]
  1. College of Automation, Harbin Engineering University, Harbin 150001 (China)
  2. (China)
  3. Robotics and Microsystems Center, Soochow University, Suzhou 215021 (China)
  4. School of Mechatronics Engineering and Automation, Shanghai University, Shanghai 200072 (China)
Publication Date:
OSTI Identifier:
22250826
Resource Type:
Journal Article
Resource Relation:
Journal Name: AIP Advances; Journal Volume: 4; Journal Issue: 1; Other Information: (c) 2014 Author(s); Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; ACCELERATION; DEPOSITION; FIBERS; MATHEMATICAL MODELS; POLYMERS