Orthogonal Optimization Research on Various Nozzles of High-Speed Centrifugal Spinning

Zhang, Zhiming; Liu, Kang; Li, Wenhui; Ji, Qiaoling; Xu, Qiao; Lai, Zhiping; Ke, Changjin

doi:10.3389/fbioe.2022.884316

Cited by 4 publications

(2 citation statements)

References 38 publications

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“…Ni et al carried out numerical investigations of the mechanical properties of braided non-vascular stents using a finite element method ( Ni et al, 2015 ). The orthogonal experiment is a high-efficiency experimental design method that uses an orthogonal table to solve the test problems of multiple factors and identify the optimal combination of parameters ( Zhang et al, 2022 ).…”

Section: Discussionmentioning

confidence: 99%

Mechanical property analysis and design parameter optimization of a novel nitinol nasal stent based on numerical simulation

Huang

Zheng

Qiu

et al. 2022

Front. Bioeng. Biotechnol.

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Background: A novel braided nasal stent is an effective alternative to nasal packing after septoplasty that can be used to manage the mucosal flap after septoplasty and expand the nasal cavity. This study aimed to investigate the influence of design parameters on the mechanical properties of the nasal stent for optimal performance.Methods: A braided nasal stent modeling method was proposed and 27 stent models with a range of different geometric parameters were built. The compression behavior and bending behavior of these stent models were numerically analyzed using a finite element method (FEM). The orthogonal test was used as an optimization method, and the optimized design variables of the stent with improved performance were obtained based on range analysis and weight grade method.Results: The reaction force and bending stiffness of the braided stent increased with the wire diameter, braiding density, and external stent diameter, while wire diameter resulted as the most important determining parameter. The external stent diameter had the greatest influence on the elongation deformation. The influence of design parameters on von-Mises stress distribution of bent stent models was visualized. The stent model with geometrical parameters of 25 mm external diameter, 30° braiding angle, and 0.13 mm wire diameter (A3B3C3) had a greater reaction force but a considerably smaller bending stiffness, which was the optimal combination of parameters.Conclusion: Firstly, among the three design parameters of braided stent models, wire diameter resulted as the most important parameter determining the reaction force and bending stiffness. Secondly, the external stent diameter significantly influenced the elongation deformation during the compression simulation. Finally, 25 mm external diameter, 30° braiding angle, and 0.13 mm wire diameter (A3B3C3) was the optimal combination of stent parameters according to the orthogonal test results.

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Section: Discussionmentioning

confidence: 99%

Mechanical property analysis and design parameter optimization of a novel nitinol nasal stent based on numerical simulation

Huang

Zheng

Qiu

et al. 2022

Front. Bioeng. Biotechnol.

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“…Recent studies have shown that spinning parameters such as motor speed, nozzle length, nozzle diameter, nozzle structure, and solution concentration directly affect the morphological distribution of nanofibers during high-speed centrifugal spinning [ 35 ]. Our study investigated the slip of polymer solutions during centrifugal compound spinning.…”

Section: Introductionmentioning

confidence: 99%

High-Speed Centrifugal Spinning Polymer Slip Mechanism and PEO/PVA Composite Fiber Preparation

Guo

Zhang

et al. 2023

Nanomaterials

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Composite nanofibers with excellent physical and chemical properties are widely used in new energy, biomedical, environmental, electronic, and other fields. Their preparation methods have been investigated extensively by many experts. High-speed centrifugal spinning is a novel method used to fabricate composite nanofibers. The slip mechanism of polymer solution flows is an important factor affecting the morphology and quality of composite nanofibers prepared by high-speed centrifugal spinning. As the polymer solution flows, the liquid wall slip occurs inside the nozzle, followed by liquid–liquid interface slip and gas–liquid interface slip. The factors affecting polymer slip were investigated by developing a mathematical model in the nozzle. This suggests that the magnitude of the velocity is an important factor that affects polymer slip and determines fiber quality and morphology. Under the same rotational speed, the smaller the nozzle diameter, the greater the concentration of velocity distribution and the smaller the diameter of the produced composite nanofibers. Finally, PEO/PVA composite nanofibers were prepared using high-speed centrifugal spinning equipment at 900–5000 rpm and nozzle diameters of 0.2 mm, 0.4 mm, 0.6 mm, and 0.8 mm. The morphology and quality of the collected PEO/PVA composite nanofibers were analyzed using scanning electron microscopy (SEM) and TG experiments. Then, the optimal parameters for the preparation of PEO/PVA composite nanofibers by high-speed centrifugal spinning were obtained by combining the external environmental factors in the preparation process. Theoretical evaluation and experimental data were provided for the centrifugal composite spinning slip mechanism and for the preparation of composite nanofibers.

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Flow Velocity Deviation of Spinning Solution Under Multi-field Coupling

Zhang,

Hong,

Huang

et al. 2023

Fibers Polym

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Orthogonal Optimization Research on Various Nozzles of High-Speed Centrifugal Spinning

Cited by 4 publications

References 38 publications

Mechanical property analysis and design parameter optimization of a novel nitinol nasal stent based on numerical simulation

Mechanical property analysis and design parameter optimization of a novel nitinol nasal stent based on numerical simulation

High-Speed Centrifugal Spinning Polymer Slip Mechanism and PEO/PVA Composite Fiber Preparation

Flow Velocity Deviation of Spinning Solution Under Multi-field Coupling

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