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Influence of the Processing Mode of Nonwoven Needle-Punched Materials on Air Filtration

  • NONWOVEN MATERIALS
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Fibre Chemistry Aims and scope

The influence of the processing rate of nonwoven needle-punched fabrics made of polyethylene terephthalate and bicomponent fibres of different surface density on air filtration has been investigated. The dependences of the air filtration rate on the pressure drop for fabrics with a surface density of 0.2 and 0.37 kg/m2 and processed materials based on them are nonlinear. The change in the parameters of air filtration in materials obtained by varying the processing rate depends on the surface density of the fabrics. When processing a fabric with a surface density of 0.2 kg/m2, materials in which the filtration resistance and air flow modes correspond to the characteristics of the flow in the fabric were obtained. At a processing rate of 5 and 10 m/min of a fabric with a surface density of 0.37 kg/m2, materials in which, compared to the fabric, the filtration resistance increases with the transition to a laminar air flow were obtained. A decrease in the processing rate from 5 to 1.2 m/min leads to the production of a material the filtration resistance of which approaches the filtration resistance of the original fabric.

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This research was financially supported by the Ministry of Science and Higher Education of the Russian Federation. State task “Structure and properties of polymer materials obtained using a system of methods of chemically, thermally and/or mechanically induced surface and volumetric modification,” No. FZRR-2020-0024, mnemonic code 0699-2020-0024.

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Authors and Affiliations

  1. Moscow Polytechnic University, Moscow, Russia

    V. G. Nazarov & A. V. Dedov

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  1. V. G. Nazarov
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  2. A. V. Dedov
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Correspondence to A. V. Dedov.

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Translated from Khimicheskie Volokna, No. 2, pp. 84-88, March-April, 2021.

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Nazarov, V.G., Dedov, A.V. Influence of the Processing Mode of Nonwoven Needle-Punched Materials on Air Filtration. Fibre Chem 53, 143–148 (2021). https://doi.org/10.1007/s10692-021-10255-5

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  • DOI: https://doi.org/10.1007/s10692-021-10255-5

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