Preparation and Performance Study of Three-Layer Composite Filter Media for Channel-Type Ultra-Low Penetration Air Filters.

Mingyu Li, Desheng Wang, Yuhan Wang, Jinhao Xie, Yuqiu Liu, Yun Liang, Jian Kang, Hao Wang

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Article in Nanomaterials (Basel, Switzerland), 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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8 authors.

Mingyu LiSchool of Light Industry and Engineering, South China University of Technology, Guangzhou 510641, China.

Desheng WangState Key Laboratory of Chemistry for NBC Hazards Protection, Beijing 102205, China.

Yuhan WangSchool of Light Industry and Engineering, South China University of Technology, Guangzhou 510641, China.

Jinhao XieState Key Laboratory of Chemistry for NBC Hazards Protection, Beijing 102205, China.

Yuqiu LiuSchool of Light Industry and Engineering, South China University of Technology, Guangzhou 510641, China.

Yun LiangSchool of Light Industry and Engineering, South China University of Technology, Guangzhou 510641, China.

Jian KangState Key Laboratory of Chemistry for NBC Hazards Protection, Beijing 102205, China.

Hao WangState Key Laboratory of Chemistry for NBC Hazards Protection, Beijing 102205, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

To satisfy the requirements of channel-type ultra-low penetration air (ULPA) filters for high filtration efficiency, low pressure drop, and good corrugation processability, a three-layer composite filter medium with a bast-fiber surface layer/glass wool-lyocell blended core layer/bast-fiber surface layer structure was designed and prepared. The effects of surface-layer material, core-layer fiber composition, surface-layer basis weight, and processing conditions on the overall performance of the medium were systematically investigated. Bast-fiber paper exhibited the best corrugation processability and mechanical performance and was selected as the surface layer. The optimal core-layer composition was 25 wt.% 475-79 glass wool fibers, 30 wt.% 475-59 glass wool fibers, and 45 wt.% lyocell fibers, yielding an original-sheet filtration efficiency of 99.9996% and a pressure drop of 381 Pa. Further optimization showed that a bast-fiber surface layer with a basis weight of 15 g/m

Indexed as

channel-type filterglass wool fiberpressure dropthree-layer composite filter mediumultra-low penetration air filtration

Identifiers

PMID42188502

DOI10.3390/nano16100607

PMCPMC13209818

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