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High-pressure dispersion of nanoparticle agglomerates through a continuous aerosol disperser

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Abstract

By discharging aerosols from a high-pressure vessel through a nozzle, an improved continuous aerosol dispersion system can disperse nanoparticle agglomerates to almost primary nanoparticle size. The system’s high-pressure dispersion was modelled and numerically simulated using the Taylor expansion method of moments. The strong turbulent shear near the nozzle could achieve the same level as the van der Waals force, which is the main mechanism for deagglomerating nanoparticle agglomerates. The change in nanoparticle size was determined to be proportional to the pressure drop between the nozzle inlet and outlet. Nanoparticle breakup was also observed to be affected by the fractional dimension and primary size of particles.

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Acknowledgements

This work was supported by the National Natural Science Foundation of China (no. 11802105) and the Fundamental Research Funds for the Central Universities (JUSRP51634B) and Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment & Technology (FMZ201808).

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Authors and Affiliations

  1. Jiangsu Key Laboratory of Advanced Food Manufacturing Equipment and Technology, Jiangnan University, Wuxi, China

    Fangyang Yuan, Jianfeng Yu & Zhengwei Cui

  2. Zhejiang Provincial Key Laboratory of Flow Measurement Technology, China Jiliang University, Hangzhou, China

    Chengxu Tu

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  1. Fangyang Yuan
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  3. Jianfeng Yu
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Correspondence to Fangyang Yuan.

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Yuan, F., Tu, C., Yu, J. et al. High-pressure dispersion of nanoparticle agglomerates through a continuous aerosol disperser. Appl Nanosci 9, 1857–1868 (2019). https://doi.org/10.1007/s13204-019-00991-w

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