Meltblown nanofiber media for enhanced quality factor

Uppal, Rohit; Bhat, Gajanan; Eash, Chris; Akato, Kokouvi

doi:10.1007/s12221-013-0660-z

Cited by 111 publications

(99 citation statements)

References 23 publications

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“…Air filters made of nanofibers with the diameter less than 1 µm have attracted great attention because they may attain a high collection efficiency with a low pressure drop at the same time. Various manufacturing methods, e.g., melt-blown, electrospinning and stretching of polymer films, have been developed to obtain fine fibers (Cho et al, 2013;Hassan et al, 2013;Uppal et al, 2013). Especially, electrospinning is the most popular method because it is simple and is able to fabricate nanofibers of various polymers (Choi et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Filtration Properties of Nanofiber/Microfiber Mixed Filter and Prediction of its Performance

Choi

Kumita

Hayashi

et al. 2017

Aerosol Air Qual. Res.

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There is an increasing demand of air filters with a high collection performance, i.e., high collection efficiency and low pressure drop, for the application to indoor air cleaning. Air filters consisting of nanofibers have attracted great interests since they may have a low pressure drop because of slip flow effect and high collection efficiency due to interception. Although various nanofiber filters are available on the market, their collection performance is not as high as expected by the conventional filtration theory because non-uniform packing of fibers plays a significant role. In the present work, the collection performance of nanofiber (780 nm) and microfiber (11.2 µm) mixed filters with various mixing fractions was studied in order to maximize the quality factor of filter, q F , as a function of mixing fraction of nanofibers. The collection performance of mixed fiber filters was predicted by using theoretical equations reported by Bao et al. (1998) for bimodal distribution of fibers. As a result, it was found that the mixed fiber filters had a uniform fiber packing compared to laminated filters and that the collection efficiency was well predicted by introducing the inhomogeneity factor calculated for the filter consisting of two distinct fiber sizes. Furthermore, we found that the mixed fiber filter with the nanofiber mixing fraction of 5% in mass had the highest quality factor.

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Section: Introductionmentioning

confidence: 99%

Filtration Properties of Nanofiber/Microfiber Mixed Filter and Prediction of its Performance

Choi

Kumita

Hayashi

et al. 2017

Aerosol Air Qual. Res.

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“…Several thermoplastic polymers such as Polypropylene (PP), Polyethylene terephthalate (PET), Polybutylene terephthalate (PBT) and PLA have been processed successfully using commercially available resins to produce uniform webs using our pilot lines [8]. Submicron fibers produced using modular meltblowing dies had diameters in the range of 50 nm to 1000 nm, with average diameters in the range of 400-600 nm ( Figure 3A and 3B).…”

Section: Melt Blown Nanofibersmentioning

confidence: 99%

Melt blown Polymeric Nanofibers for Medical Applications- An Overview

Bhat¹

2015

NSTOA

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“…Several polymers have been successfully meltblown using the pilot line, and many of them are commercially practiced [7,8]. Although ultem has not been melt blown before, it has been converted into fibers and membranes [9].…”

Section: Introductionmentioning

confidence: 99%

Processing, Structure and Properties of Melt Blown Polyetherimide

agor¹,

Prather²,

J³

et al. 2017

J Textile Sci Eng

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Polyetherimide (PEI), an engineering plastic with very high glass transition temperature and excellent chemical and thermal stability has been processed into membranes of varying pore size, performance, and surface characteristics. A special grade of the polyetherimide was processed by melt blowing to produce microfiber nonwovens suitable as filter media. The resulting microfiber webs were characterized to evaluate their structure and properties. The fiber webs were further modified by hot pressing, a post processing technique, which reduces the pore size in order to improve the barrier properties of the resulting membranes. This ongoing research has shown that polyetherimide can be a good candidate for filter media requiring high temperature and chemical resistance with good mechanical properties.

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Meltblown nanofiber media for enhanced quality factor

Cited by 111 publications

References 23 publications

Filtration Properties of Nanofiber/Microfiber Mixed Filter and Prediction of its Performance

Filtration Properties of Nanofiber/Microfiber Mixed Filter and Prediction of its Performance

Melt blown Polymeric Nanofibers for Medical Applications- An Overview

Processing, Structure and Properties of Melt Blown Polyetherimide

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