@article{kilic_shim_pourdeyhimi_yeom_2014, title={Aerosol Filtration Properties of Nucleating Agent Containing Electret Filters}, volume={54}, ISSN={["1548-2634"]}, DOI={10.1002/pen.23693}, abstractNote={This study reports on the effects of nucleating agents on morphology, charging, and electrostatic filtration performance of polypropylene meltblown webs. Two commercial nucleating agents, DMDBS (3:2, 4‐bis(3,4‐dimethyldibenzylidene) sorbitol) and NA11 (sodium 2,2′‐methylene‐bis(4,6‐di‐tertbutylphenyl)‐phosphate) were compared. It is hypothesized that faster solidification brought about by the addition of the nucleating agents may be responsible for the slight increase in fiber diameter and concomitant reduction in web solidity. Samples were charged at room temperature as well as at elevated temperatures. Upon thermal charging, significant enhancement in the electrostatic potential and filtration performance of the webs was observed. Particularly, the stability of electrostatic filtration performance was found to be promising with the addition of these polarizable additives. Dielectric spectroscopy tests confirmed an increase in capacitance for samples containing nucleating agents. POLYM. ENG. SCI., 54:1533–1539, 2014. © 2013 Society of Plastics Engineers}, number={7}, journal={POLYMER ENGINEERING AND SCIENCE}, publisher={Wiley-Blackwell}, author={Kilic, Ali and Shim, Eunkyoung and Pourdeyhimi, Behnam and Yeom, Bong-Yeol}, year={2014}, month={Jul}, pages={1533–1539} }
 @article{amirnasr_shim_yeom_pourdeyhimi_2014, title={Basis weight uniformity analysis in nonwovens}, volume={105}, ISSN={["1754-2340"]}, DOI={10.1080/00405000.2013.820017}, abstractNote={It is widely recognized that nonwoven basis weight uniformity affects various properties of nonwovens, including appearance, physical properties, or mechanical properties. However, it is one of the nonwoven characteristics that is most difficult to characterize. This paper reports on the methodology based on the well-known quadrant method that objectively quantifies uniformity of nonwoven fabrics.}, number={4}, journal={JOURNAL OF THE TEXTILE INSTITUTE}, publisher={Informa UK Limited}, author={Amirnasr, Elham and Shim, Eunkyoung and Yeom, Bong-Yeol and Pourdeyhimi, Behnam}, year={2014}, month={Apr}, pages={444–453} }
 @article{kilic_shim_yeom_pourdeyhimi_2013, title={Effect of DMDBS (3: 2, 4-bis(3,4-dimethyldibenzylidene) sorbitol) and NA11 (sodium 2,2-methylene-bis(4,6-di-tertbutylphenyl)-phosphate) on electret properties of polypropylene filaments}, volume={130}, ISSN={["1097-4628"]}, DOI={10.1002/app.39392}, abstractNote={ABSTRACT}, number={3}, journal={JOURNAL OF APPLIED POLYMER SCIENCE}, publisher={Wiley-Blackwell}, author={Kilic, Ali and Shim, Eunkyoung and Yeom, Bong Yeol and Pourdeyhimi, Behnam}, year={2013}, month={Nov}, pages={2068–2075} }
 @article{hassan_yeom_wilkie_pourdeyhimi_khan_2013, title={Fabrication of nanofiber meltblown membranes and their filtration properties}, volume={427}, ISSN={["1873-3123"]}, DOI={10.1016/j.memsci.2012.09.050}, abstractNote={Meltblowing is a unique one-step process for producing self-bonded fibrous nonwoven membranes directly from polymer resins, with average fiber diameter ranging between 1 and 2 μm. Determining routes for making nano- or submicron-fibers using this process are desirable since there are many manufacturing assets that are already in place. It is envisaged that these nonwoven membranes will find applications in critical areas such as medical, hygiene, filtration, bioseparation, and others. In this study, we investigate the influence of different die configurations and operating conditions on fiber and web characteristics. We also report on strategies for reducing the fiber size below one micron to achieve higher filtration quality at lower basis weight relative to the conventional meltblown webs. Their performance is compared to a control meltblown sample produced by using a typical die design. We find that production of nano-meltblown membranes with an average fiber size in the range of 300–500 nm using this new die design is possible and report on process operating conditions that result in such structures. These samples achieve equal filtration efficiencies to that of our control sample at 88% reduced basis weight but at a lower polymer throughput. The lower basis weight also resulted in a lower pressure drop and overall, the new samples exhibited a higher quality factor, twice that of the control. These results show significant promise for the use of nano-meltblown fibers in filtration applications.}, journal={JOURNAL OF MEMBRANE SCIENCE}, author={Hassan, Mohammad Abouelreesh and Yeom, Bong Yeol and Wilkie, Arnold and Pourdeyhimi, Behnam and Khan, Saad. A.}, year={2013}, month={Jan}, pages={336–344} }
 @article{kilic_shim_yeom_pourdeyhimi_2013, title={Improving electret properties of PP filaments with barium titanate}, volume={71}, ISSN={["0304-3886"]}, DOI={10.1016/j.elstat.2012.11.005}, abstractNote={Barium titanate (BaTiO3) containing polypropylene (PP) composite filaments were melt spun to modify polymer electrostatic charging characteristics. Sample filaments were charged with a corona instrument and their surface potentials were measured. Initial surface potential as well as potential stability was monitored through an accelerated decay procedure. It was found that both BaTiO3 concentration and charging temperature influence the charging characteristics of the fibers. When BaTiO3/PP composite filaments were charged at 130 °C, significant enhancements were observed when compared to samples charged at room temperature. The distribution of BaTiO3 particles within the filaments and changes in the crystal structure were also examined.}, number={1}, journal={JOURNAL OF ELECTROSTATICS}, publisher={Elsevier BV}, author={Kilic, Ali and Shim, Eunkyoung and Yeom, Bong Yeol and Pourdeyhimi, Behnam}, year={2013}, month={Feb}, pages={41–47} }
 @article{yeom_pourdeyhimi_2011, title={Aerosol filtration properties of PA6/PE islands-in-the-sea bicomponent spunbond web fibrillated by high-pressure water jets}, volume={46}, ISSN={["0022-2461"]}, DOI={10.1007/s10853-011-5531-7}, number={17}, journal={JOURNAL OF MATERIALS SCIENCE}, author={Yeom, Bong Yeol and Pourdeyhimi, Behnam}, year={2011}, month={Sep}, pages={5761–5767} }
 @article{yeom_pourdeyhimi_2011, title={Web fabrication and characterization of unique winged shaped, area-enhanced fibers via a bicomponent spunbond process}, volume={46}, ISSN={["1573-4803"]}, DOI={10.1007/s10853-010-5212-y}, number={10}, journal={JOURNAL OF MATERIALS SCIENCE}, author={Yeom, Bong Yeol and Pourdeyhimi, Behnam}, year={2011}, month={May}, pages={3252–3257} }
 @article{yeom_shim_pourdeyhimi_2010, title={Boehmite nanoparticles incorporated electrospun nylon-6 nanofiber web for new electret filter media}, volume={18}, ISSN={["1598-5032"]}, DOI={10.1007/s13233-010-0910-5}, number={9}, journal={MACROMOLECULAR RESEARCH}, publisher={Springer Science \mathplus Business Media}, author={Yeom, Bong Yeol and Shim, Eunkyoung and Pourdeyhimi, Behnam}, year={2010}, month={Sep}, pages={884–890} }
 @article{yeom_lee_hwang_2009, title={A new hybrid ion exchanger: Effect of system parameters on the adsorption of vanadium (V)}, volume={166}, ISSN={["1873-3336"]}, DOI={10.1016/j.jhazmat.2008.11.032}, abstractNote={The hybrid ion exchanger consisted of PONF-g-GMA anion fibrous exchanger and IRA-96 bead-type anion exchanger was developed by combining different types of layers with hot-melt adhesive. Its ion exchange capacity and the pressure drop with flow rate of water were measured and the adsorption of vanadium (V) ions on the hybrid ion exchanger was evaluated with various process parameters such as pH, initial concentration, and temperature. It was observed that the adsorption kinetics of vanadium (V) ions on the hybrid ion exchanger could be analyzed with pseudo-second-order model.}, number={1}, journal={JOURNAL OF HAZARDOUS MATERIALS}, author={Yeom, Bong-Yeol and Lee, Chang-Soo and Hwang, Taek-Sung}, year={2009}, month={Jul}, pages={415–420} }
 @article{son_yeom_song_lee_hwang_2009, title={Antibacterial Electrospun Chitosan/Poly(vinyl alcohol) Nanofibers Containing Silver Nitrate and Titanium Dioxide}, volume={111}, ISSN={["1097-4628"]}, DOI={10.1002/app.29233}, abstractNote={Abstract}, number={6}, journal={JOURNAL OF APPLIED POLYMER SCIENCE}, author={Son, Bokgi and Yeom, Bong-Yeol and Song, Sang Hun and Lee, Chang-Soo and Hwang, Taek Sung}, year={2009}, month={Mar}, pages={2892–2899} }
 @article{baek_yeom_hwang_2008, title={Synthesis of sulfonated poly(styrene-co-DVB) hyper branched cationic exchange resin and its properties}, volume={32}, number={1}, journal={Pollimo = Polymer (Korea) = Hanguk Kobunja Hakhoe Chi}, author={Baek, K. W. and Yeom, B. Y. and Hwang, T. S.}, year={2008}, pages={43–48} }