全氟支链短链氟碳烃表面活性剂复配水成膜泡沫灭火剂的研究

IF 3.9 2区化学 Q2 CHEMISTRY, MULTIDISCIPLINARY

Langmuir Pub Date : 2025-01-23 DOI:10.1021/acs.langmuir.4c04540

Mengyuan Peng, Min Sha, Ding Zhang, Biao Jiang

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引用次数: 0

摘要

水成膜泡沫（AFFF）是液体燃料火灾的目标产品，具有储存期长、灭火效率高的优点。然而，由于核心原料的长链氟碳表面活性剂的毒性和生物蓄积性，传统的AFFF正在逐步淘汰。因此，三种高效afff (F-1、F-2和F-3)；以具有支链C6全氟链的阴离子表面活性剂（PBAF）、十六烷基三甲基溴化铵（CTAB）和十二烷基二甲基甜菜碱（BS-12）为核心材料进行设计，详见表2。经比较，F-1具有优异的起泡能力（初始泡沫高度为86 mm）和泡沫稳定性（25%排液时间为234 s），同时F-1具有优异的灭火和耐火性能：灭火时间为33 s，耐火时间为831 s。这意味着F-1具有巨大的消防潜力，可以作为传统AFFF的潜在替代品。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Study on Aqueous Film Forming Foam Extinguishing Agents Based on Perfluorobranched Short-Chain Fluorocarbon–Hydrocarbon Surfactant Complex Mixtures

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Study on Aqueous Film Forming Foam Extinguishing Agents Based on Perfluorobranched Short-Chain Fluorocarbon–Hydrocarbon Surfactant Complex Mixtures

Aqueous film-forming foam (AFFF) is a targeted product for liquid fuel fires and has the benefits of a long storage period and high fire extinguishing efficiency. However, because of the toxicity and bioaccumulation of the core raw material’s long-chain fluorocarbon surfactant, traditional AFFF is being phased out. For this reason, three efficient AFFFs (F-1, F-2, and F-3; more details in Table 2) were designed using anionic surfactants (PBAF) with branched C₆ perfluorinated chains, hexadecyltrimethylammonium bromide (CTAB), and dodecyl dimethyl betaine (BS-12) as core materials. Through comparison, F-1 shows excellent foaming ability (initial foam height is 86 mm) and foam stability (25% drainage time is 234 s). Moreover, F-1 exhibited excellent fire extinguishing and fire resistance performance: the fire extinguishing time was 33 s, and the fire resistance time was 831 s. This means that F-1 has enormous firefighting potential and can serve as a potential alternative to traditional AFFF.

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来源期刊

Langmuir 化学-材料科学：综合

CiteScore

6.50

自引率

10.30%

发文量

1464

审稿时长

2.1 months

期刊介绍： Langmuir is an interdisciplinary journal publishing articles in the following subject categories: Colloids: surfactants and self-assembly, dispersions, emulsions, foams Interfaces: adsorption, reactions, films, forces Biological Interfaces: biocolloids, biomolecular and biomimetic materials Materials: nano- and mesostructured materials, polymers, gels, liquid crystals Electrochemistry: interfacial charge transfer, charge transport, electrocatalysis, electrokinetic phenomena, bioelectrochemistry Devices and Applications: sensors, fluidics, patterning, catalysis, photonic crystals However, when high-impact, original work is submitted that does not fit within the above categories, decisions to accept or decline such papers will be based on one criteria: What Would Irving Do? Langmuir ranks #2 in citations out of 136 journals in the category of Physical Chemistry with 113,157 total citations. The journal received an Impact Factor of 4.384*. This journal is also indexed in the categories of Materials Science (ranked #1) and Multidisciplinary Chemistry (ranked #5).