Numerical and experimental studies on the influence of gas pressure on particle size during gas-assisted extrusion of tubes with embedded antibacterial particles
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Bin Liu
,
Shaoyi Ren
Abstract
During the gas-assisted extrusion process of plastic tubes embedded with antibacterial particles, the particles tend to agglomerate. The dispersion effect of these agglomerates using the nozzle-pressure-difference method is significantly influenced by the gas flow state. Therefore, this study establishes the nozzle dispersion model. The gas flow state near the nozzle is simulated and analyzed by using Ansys Fluent software. Gas-assisted extrusion experiments are conducted with different nozzle inlet pressures, and the size distribution of antibacterial particles is observed by using electron microscopy. The simulation results indicate that increasing the nozzle inlet pressure enhances the dispersion effect and expands the effective dispersion area. The experimental results demonstrate that using the nozzle disperses the agglomerates into particles with a diameter of approximately 100 nm. Furthermore, the nanoparticles diameter size decreases with the increase of the inlet pressure, validating the accuracy of the numerical analysis results.
Funding source: National Natural Science Foundation of China
Award Identifier / Grant number: 51863014
Funding source: Graduate Innovative Special Fund Projects of Jiangxi Province
Award Identifier / Grant number: YC2022-B017
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Research ethics: Not applicable.
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Author contributions: The authors have accepted responsibility for the entire content of this manuscript and approved its submission.
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Competing interests: The authors declare no conflicts of interest.
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Research funding: This research was funded by the National Natural Science Foundation of China (The contract grant number: 51863014). This research was funded by the Graduate Innovation Special Fund Project of Jiangxi Province (The contract grant number: YC2022-B017).
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Data availability: Not applicable.
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Articles in the same Issue
- Frontmatter
- Material Properties
- Effect of super critical carbon dioxide and alkali treatment on oxygen barrier properties of thermoplastic starch/poly(vinyl alcohol) films
- Promoting antibacterial activity of polyurethane blend films by regulating surface-enrichment of SiO2 bactericidal agent
- Improving anti-aging performance of terminal blend rubberized bitumen by using graft activated crumb rubber
- An experimental investigation of flame retardancy and thermal stability of treated and untreated kenaf fiber reinforced epoxy composites
- Preparation and properties of ABS/BNNS composites with high thermal conductivity for FDM
- Development of a high-strength carrageenan fiber with a small amount of aluminum ions pre-crosslinked in spinning solution
- Development and characterization of new formulation of biodegradable emulsified film based on polysaccharides blend and microcrystalline wax
- Study on the volatilization behavior of monomer and oligomers in polyamide-6 melt by dynamic film–forming device
- Engineering and Processing
- Numerical simulation on the mixing behavior of double-wave screw under speed sinusoidal pulsating enhancement induced by differential drive
- Numerical and experimental studies on the influence of gas pressure on particle size during gas-assisted extrusion of tubes with embedded antibacterial particles
