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Development and characterization of triclosan coated heat and moisture exchange filter for ventilation therapy

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Title Development and characterization of triclosan coated heat and moisture exchange filter for ventilation therapy
 
Creator Sounderraj, Shanmugam
Jayaraman, Dhasarathi
Muthuukumar, Kishore Rejendran
Balasubramaniyan, Karuppaswamy
Santhini, Elango
 
Subject Bacterial filtration efficiency
Biocide
Heat exchange filter
Moisture exchange filter
Nonwoven fabric
Open cell reticulated polyurethane foam
Pressure drop
 
Description 87-95
An indigenous heat and moisture exchange filter has been developed using an open cell reticulated hygroscopic impregnated polyurethane foam and polypropylene nonwoven to maintain heat and moisture exchange and bacterial filtration efficiency respectively. Also, the spun bond polypropylene nonwoven is treated with an optimized concentration of biocide (triclosan-5gpl) mainly on the 1st contact layer of ventilator gas using padding mangle in 2 dips/2 nips method for better antibacterial efficiency. Three different polypropylene made nonwoven materials [spunbond (SB), meltblown (MB) and needle-punched (NP)] are stacked in different layer arrangement and evaluated for their efficiency in filtering bacteria. The five- layered composite filter (SB-MB-NP-MB-SB biocide treated) with double layers of meltblown and spunbond treated with biocide, in addition to the needle-punched middle layer, shows a bacterial filtration of 99.9% along with excellent antimicrobial properties and acceptable pressure drop. The developed biocide-coated multilayer composite filter provides comfortable and ideal humidification to the users besides delivering excellent antimicrobial activity. This developed filter will be an alternative to existing commercial filters, without any compromise, and having all the inherent properties.
 
Date 2022-03-24T10:53:25Z
2022-03-24T10:53:25Z
2022-03
 
Type Article
 
Identifier 0975-1025 (Online); 0971-0426 (Print)
http://nopr.niscair.res.in/handle/123456789/59357
 
Language en
 
Publisher NIScPR-CSIR, India
 
Source IJFTR Vol.47(1) [March 2022]