Dissertation > Excellent graduate degree dissertation topics show

Preparation of Wool-Like Self-Crimped and Helical Structure Nanofibers

Author: RaoDan
Tutor: LiCongJu
School: Beijing Institute of Clothing Technology
Course: Materials Science
Keywords: Electrospinning Spiral Elongation at break Nanofibers Side-by-side type Dual- nozzle Disc method.
CLC: TQ340.1
Type: Master's thesis
Year: 2010
Downloads: 18
Quote: 0
Read: Download Dissertation

Abstract


Distort the application of one of the mechanisms of the spiral structure of micro- nanofibers were prepared : two different elastic polymer blend spinning , the two polymer elastic droplets in the high-voltage electric field by the electric force stretching stretch process the internal stress generated in the two kinds of polymers of different sizes, when the static electricity disappears (i.e., when the yarn reaches the receiving plate ) , resulting in different retracted to form a twisted helix structure , so that the fibers shrink . The different electrospinning method above mechanism successful preparation of micro and nano fibers twisted helical structure . TPEE and PBT chosen different from the elongation at break of the polymer , respectively, through the parallel type electrostatic spinning method, and a dual - nozzle electrospinning method successfully prepared morphology different composite twisted spiral fibers , a detailed analysis of the reasons for the formation of a composite twisted helical fiber selection different from the elongation at break of the polymer , resulting twisted helical fiber ribbon flower annular fiber difference between the morphology of the composite fibers obtained by the two electrostatic spinning method for different reasons ; TPEE and PAN clear characterization by SEM two straight after bonding of the single fibers forming a composite twisted spiral single fiber , EDS characterization determined unbonded before the two straight - line type for different types of dual spinneret electrospinning method can be successfully prepared distorted , i.e. prove spiral composite fibers ; selection of \two different elongation at break of the polymer on which a fluorescent dopant or conductive particles , distorted spiral fiber initial attempt to prepare different performance characteristics , has made ??some achievements .

Related Dissertations

  1. A Simulation Study of the Effects of Ischemia to Spiral Waves in 2-D Human Ventricular Tissue,R318.0
  2. The Preparation and Research of Magnetically Separable TiO2 Photocatalyst Nanofibers,TB383.1
  3. The Study of Preparation and Photocatalytic Activity of TiO2 by Electrospinning,O614.411
  4. Preparation and Characterization of Polymer Micro/Nano Fibers by Laser Melt Electrospinning,TQ340.64
  5. Investigate the Value of CT Reconstruction of Multi-mode After T-tube Cholangiography or ERCP in the Biliary Tract Disease,R657.4
  6. Multislice CT and MRI angiography in the diagnosis of Takayasu arteritis,R445.2
  7. Multislice spiral computed tomography analysis of aortic sinus arrhythmia anatomical characteristics and clinical relevance,R541.7
  8. Pulmonary vein antrum volume and left atrial volume on short-term atrial fibrillation recurrence after radiofrequency ablation of,R541.75
  9. Lung cancer and benign lung tumor CT misdiagnosis and control study,R734.2
  10. PVA / Polystyrene Composite Nanofibers Preparation and Characterization,TQ340.1
  11. Analysis of Chinese Subject Nature Under the Guidance of Spiral Theory,G633.3
  12. Fabrication of Biomimetic Tubular Vascular Scaffold and Inducing VSMCs Alignment,R318.08
  13. Preparation of Composite Nanofibers Via Elecrtrospinng,TB383.1
  14. Effects of the High Viscosity Solution and Conductive Particles on Bubble-Electrospinning,TQ340.6
  15. Design and Research of the Inter-Chip Inductive Coupling Wireless Transceiver for 3D Stacking Package,TN859
  16. Fabrication of Silk Fibroin Nanofibers Loaded with Vitamin A and E by Green Electrospinning and Evaluative Study on Its Biocompatibility,TQ340.64
  17. Preparation and Characterization of Aligned Ultrafine Fibers by Stable Jet Electrospinning,TQ340.64
  18. Numerical Simulation Study on the Process of Electrospinning and Experimental Verification,TQ340.6
  19. The Study on Controllable Preparation and Performance of Polyurethane Nano-fiber/net,TB383.1
  20. Comparision of Three Different Neutral Enteral Contrast Media for MSCT Enterography,R816.5
  21. The Research and Design of Radio Frequency Monolithic Voltage Controlled Oscillator in 0.18μm CMOS Technology,TN752

CLC: > Industrial Technology > Chemical Industry > The chemical fiber industry > General issues > Basic theory
© 2012 www.DissertationTopic.Net  Mobile