Solution blown nanofibrous air filters modified with glass microparticles

Yusuf Polat, Mehmet Calisir, Melike Gungor, Merve N. Sagirli, Raziye Atakan, Yasin Akgul, Ali Demir*, Ali Kiliç

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

22 Citations (Scopus)

Abstract

High-pressure drop and lower dust holding capacity reduce the performance of nanofibrous air filters. For that reason, this study was carried out to form filters with high-quality factor and high dust holding capacity, thanks to the glass particle additives. In this study, as an approach to such modifications, fluffy nanofiber webs were produced via solution blowing. Polyamide 6 (PA6) was chosen as the base for the nanofibrous mats, where glass microparticles were embedded as an additive to reduce web solidity. The effects of glass microparticle embedding on the filtration performance and pressure drop of the mats were investigated. SEM analysis was performed to analyze nanofiber diameter and morphology. Also, the barrier properties of samples were examined by air filtration and air permeability tests. Findings showed that the addition of glass particles did not alter fiber morphology significantly. However, lowering the pressure drop resulted in higher air permeability and better filtration performance in terms of the quality factor. Glass particles embedded composite samples exhibited a higher quality factor compared to the neat PA6 sample, and the PA6 + 5%GP sample has the highest quality factor value around 0.43. The filtration efficiency of this sample was 99.97% at an expense of 187.3 Pa pressure drop. The obtained enhancement was conducted to the lower solidity of composite webs which was 36% lower for the PA6 + 5%GP sample.

Original languageEnglish
Pages (from-to)821-834
Number of pages14
JournalJournal of Industrial Textiles
Volume51
Issue number5
DOIs
Publication statusPublished - Nov 2021

Bibliographical note

Publisher Copyright:
© The Author(s) 2019.

Funding

The author(s) disclosed receipt of the following financial support for the research, authorship, and/or publication of this article: This work was financially supported by The Scientific and Technological Research Council of Turkey (TUBITAK, Grant No: 214M371) and the Istanbul Technical University (ITU) Scientific Research Fund (ITU-BAP Grant No 39,606 and 39,128). The authors also gratefully acknowledge “MEDITEKS: The R&D Center for Medical Textiles” project financially supported by Istanbul Development Agency (ISTKA TR10/18/YMP/0075) and Areka LLC for making freely available the lab-scale solution blowing system.

FundersFunder number
Areka LLC
ISTKATR10/18/YMP/0075
Türkiye Bilimsel ve Teknolojik Araştirma Kurumu214M371
Istanbul Teknik Üniversitesi
Istanbul Kalkinma Ajansi
Bilimsel Araştırma Projeleri Birimi, İstanbul Teknik Üniversitesi39,606, 39,128

    Keywords

    • Aerosol filtration
    • glass microparticles
    • nanofiber
    • solution blowing

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