首页|Preparation and application of superhydrophobic polypropylene melt-blown nonwovens by organic solvent etch

Preparation and application of superhydrophobic polypropylene melt-blown nonwovens by organic solvent etch

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  • NETL
  • NSTL
  • Elsevier
© 2024Since the global outbreak of COVID-19, medical masks have become one of the most concerned pieces of epidemiological protection equipment. Polypropylene melt-blown nonwovens are the core filtration materials of medical masks, but the filtration performance deteriorates drastically with prolonged use and water vapor adherence. Here, a series of organic solvents were used to etch the melt-blown nonwovens to construct a graded rough structure and thus obtain durable superhydrophobic melt-blown nonwovens. The melt-blown nonwovens etched with a mixture of cyclohexane and n-hexane (volume ratio: 3:2) at 65 °C for 30 min exhibited excellent superhydrophobicity (water contact angle ∼153.5°, sliding angle ∼5.9°), high durability and great chemical resistance. The mechanical strength of the superhydrophobic melt-blown nonwoven has changed very little compared to the original melt- blown nonwoven, and it has a good filtration efficiency (89.2 %) and low wind resistance (24.3 Pa). In addition, the superhydrophobic melt-blown nonwoven can achieve more than 8.5 times its previous mass of organic solvent adsorption, with oil and water separation efficiency reaching over 91 %. Therefore, the PP melt-blowns prepared by the organic solvent etching method have greatly improved mask filtration performance and they also have great application prospect in oil-water separation.

MaskOil/water separationOrganic solvent etchPolypropylene melt-blown nonwovensSuperhydrophobic

Ma T.、Gan L.、Xu S.、Han C.、Zang X.、Cao N.、Liu Y.、Zhao X.

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School of Materials Science and Engineering State Key Laboratory of Heavy Oil Processing China University of Petroleum (East China)

Expert Workstation of Carbon-based Functional Materials Research Center Qingdao Shichuang Technologies Co. Ltd.

Shandong Chambroad Holding Group Co. Ltd.

2025

10.1016/j.reactfunctpolym.2024.106132

Reactive & functional polymers

Reactive & functional polymers

SCI
ISSN：1381-5148
年,卷(期)：2025.207(Feb.)
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