Characterization of electrospraying process for polymeric particle fabrication

Jun Yao, Liang Kuang Lim, Jingwei Xie, Jinsong Hua, Chi Hwa Wang

Research output: Contribution to journalArticle

102 Citations (Scopus)

Abstract

Polymeric particles were fabricated using the electrohydrodynamic atomization (EHDA) process in a modified electrospray system where nozzle and ring are enclosed in a shuttle chamber. Two organic liquids (PLGA + DCM (w / v = 7 %), PLGA + ACN (w / v = 8 %)) were tested. The spray current (I) scaling laws with liquid flow rate (Q) were found to be I ∼ Q1 / 4 and the droplet size (dd) scaling laws dd ∼ Q1 / 2, which agrees with the work [Gañán-Calvo, A. M., Dávila, J., & Barrero, A. (1997). Current and droplet size in the electrospraying of liquids. Scaling laws. Journal of Aerosol Science, 28, 249-275] conducted using a regular electrospray system. The size of the fabricated particles decreased with decreasing nozzle-plate distance as well as with increasing conductivity of polymer solution or with decreasing liquid flow rate. The morphology of the fabricated particles became less spherical with increasing Peclet number (Pe). The variation of Pe values due to either using a different polymer or a different ambient temperature resulted in comparable changes in particle morphology. An Okuyama Peclet number analogy has been shown to be promising for characterizing the formation of particle morphology under the use of different solvents.

Original languageEnglish (US)
Pages (from-to)987-1002
Number of pages16
JournalJournal of Aerosol Science
Volume39
Issue number11
DOIs
StatePublished - Nov 2008

Fingerprint

Scaling laws
Fabrication
Peclet number
Liquids
liquid
Nozzles
Flow rate
droplet
polymer
Electrohydrodynamics
Atomization
Polymer solutions
Aerosols
Polymers
spray
conductivity
particle
aerosol
Temperature
temperature

Keywords

  • Current
  • Droplet
  • Electrospray
  • Electrostatics
  • Microparticles
  • Morphology
  • Particle size

ASJC Scopus subject areas

  • Environmental Chemistry
  • Materials Science(all)
  • Pollution

Cite this

Characterization of electrospraying process for polymeric particle fabrication. / Yao, Jun; Kuang Lim, Liang; Xie, Jingwei; Hua, Jinsong; Wang, Chi Hwa.

In: Journal of Aerosol Science, Vol. 39, No. 11, 11.2008, p. 987-1002.

Research output: Contribution to journalArticle

Yao, Jun ; Kuang Lim, Liang ; Xie, Jingwei ; Hua, Jinsong ; Wang, Chi Hwa. / Characterization of electrospraying process for polymeric particle fabrication. In: Journal of Aerosol Science. 2008 ; Vol. 39, No. 11. pp. 987-1002.
@article{4af9eb2428104a4780576fb11e296133,
title = "Characterization of electrospraying process for polymeric particle fabrication",
abstract = "Polymeric particles were fabricated using the electrohydrodynamic atomization (EHDA) process in a modified electrospray system where nozzle and ring are enclosed in a shuttle chamber. Two organic liquids (PLGA + DCM (w / v = 7 {\%}), PLGA + ACN (w / v = 8 {\%})) were tested. The spray current (I) scaling laws with liquid flow rate (Q) were found to be I ∼ Q1 / 4 and the droplet size (dd) scaling laws dd ∼ Q1 / 2, which agrees with the work [Ga{\~n}{\'a}n-Calvo, A. M., D{\'a}vila, J., & Barrero, A. (1997). Current and droplet size in the electrospraying of liquids. Scaling laws. Journal of Aerosol Science, 28, 249-275] conducted using a regular electrospray system. The size of the fabricated particles decreased with decreasing nozzle-plate distance as well as with increasing conductivity of polymer solution or with decreasing liquid flow rate. The morphology of the fabricated particles became less spherical with increasing Peclet number (Pe). The variation of Pe values due to either using a different polymer or a different ambient temperature resulted in comparable changes in particle morphology. An Okuyama Peclet number analogy has been shown to be promising for characterizing the formation of particle morphology under the use of different solvents.",
keywords = "Current, Droplet, Electrospray, Electrostatics, Microparticles, Morphology, Particle size",
author = "Jun Yao and {Kuang Lim}, Liang and Jingwei Xie and Jinsong Hua and Wang, {Chi Hwa}",
year = "2008",
month = "11",
doi = "10.1016/j.jaerosci.2008.07.003",
language = "English (US)",
volume = "39",
pages = "987--1002",
journal = "Journal of Aerosol Science",
issn = "0021-8502",
publisher = "Elsevier Limited",
number = "11",

}

TY - JOUR

T1 - Characterization of electrospraying process for polymeric particle fabrication

AU - Yao, Jun

AU - Kuang Lim, Liang

AU - Xie, Jingwei

AU - Hua, Jinsong

AU - Wang, Chi Hwa

PY - 2008/11

Y1 - 2008/11

N2 - Polymeric particles were fabricated using the electrohydrodynamic atomization (EHDA) process in a modified electrospray system where nozzle and ring are enclosed in a shuttle chamber. Two organic liquids (PLGA + DCM (w / v = 7 %), PLGA + ACN (w / v = 8 %)) were tested. The spray current (I) scaling laws with liquid flow rate (Q) were found to be I ∼ Q1 / 4 and the droplet size (dd) scaling laws dd ∼ Q1 / 2, which agrees with the work [Gañán-Calvo, A. M., Dávila, J., & Barrero, A. (1997). Current and droplet size in the electrospraying of liquids. Scaling laws. Journal of Aerosol Science, 28, 249-275] conducted using a regular electrospray system. The size of the fabricated particles decreased with decreasing nozzle-plate distance as well as with increasing conductivity of polymer solution or with decreasing liquid flow rate. The morphology of the fabricated particles became less spherical with increasing Peclet number (Pe). The variation of Pe values due to either using a different polymer or a different ambient temperature resulted in comparable changes in particle morphology. An Okuyama Peclet number analogy has been shown to be promising for characterizing the formation of particle morphology under the use of different solvents.

AB - Polymeric particles were fabricated using the electrohydrodynamic atomization (EHDA) process in a modified electrospray system where nozzle and ring are enclosed in a shuttle chamber. Two organic liquids (PLGA + DCM (w / v = 7 %), PLGA + ACN (w / v = 8 %)) were tested. The spray current (I) scaling laws with liquid flow rate (Q) were found to be I ∼ Q1 / 4 and the droplet size (dd) scaling laws dd ∼ Q1 / 2, which agrees with the work [Gañán-Calvo, A. M., Dávila, J., & Barrero, A. (1997). Current and droplet size in the electrospraying of liquids. Scaling laws. Journal of Aerosol Science, 28, 249-275] conducted using a regular electrospray system. The size of the fabricated particles decreased with decreasing nozzle-plate distance as well as with increasing conductivity of polymer solution or with decreasing liquid flow rate. The morphology of the fabricated particles became less spherical with increasing Peclet number (Pe). The variation of Pe values due to either using a different polymer or a different ambient temperature resulted in comparable changes in particle morphology. An Okuyama Peclet number analogy has been shown to be promising for characterizing the formation of particle morphology under the use of different solvents.

KW - Current

KW - Droplet

KW - Electrospray

KW - Electrostatics

KW - Microparticles

KW - Morphology

KW - Particle size

UR - http://www.scopus.com/inward/record.url?scp=54949158278&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=54949158278&partnerID=8YFLogxK

U2 - 10.1016/j.jaerosci.2008.07.003

DO - 10.1016/j.jaerosci.2008.07.003

M3 - Article

AN - SCOPUS:54949158278

VL - 39

SP - 987

EP - 1002

JO - Journal of Aerosol Science

JF - Journal of Aerosol Science

SN - 0021-8502

IS - 11

ER -