Ultrafine Fe(OH)3 nanoparticles formation via oxidation-mediated strategies towards remarkable flame-retardant and smoke-suppressant performances

IF 3.1 2区 化学 Q2 CHEMISTRY, ANALYTICAL
Guangyan Chen , Zai-Yin Hu , Zhijun Guo , Yi Xie
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Abstract

Transition metal nanomaterials are widely applied as flame retardants in materials. Herein, an oxidation-mediated strategy was developed for temporally controlling the in situ growth of Fe(OH)3 nanoparticles on wool/nylon (W/N) fabrics. The formed particles exhibit homogeneous dispersion on the surface of W/N fabrics, with an average particle diameter of about 60 nm. These Fe(OH)3 nanoparticles can simultaneously enhance both the flame retardancy (the limiting oxygen index increased by 18.8 % and passed the UL-94 burning test of V-0 rating) and mechanical performance (the tensile strength increased by 9.13 %) of the W/N fabrics. Meanwhile, the obtained W/N fabrics exhibit remarkable smoke-suppressant properties, demonstrating a reduction of 76.4 % and 65.5 % in smoke production rate and total smoke production, respectively, compared to the pure W/N fabrics. Furthermore, the prepared W/N fabrics exhibit good durability. This innovative strategy may be also extended for synthesizing other nanomaterials and pave a new path to develop high-performance flame-retardant materials.

Abstract Image

通过氧化介导策略形成超细 Fe(OH)3 纳米颗粒,实现卓越的阻燃和抑烟性能
过渡金属纳米材料作为阻燃剂被广泛应用于材料中。在此,我们开发了一种氧化介导的策略,用于在羊毛/尼龙(W/N)织物上临时控制Fe(OH)3纳米颗粒的原位生长。形成的颗粒均匀地分散在 W/N 织物表面,平均颗粒直径约为 60 nm。这些 Fe(OH)3 纳米粒子能同时提高 W/N 织物的阻燃性(极限氧指数提高了 18.8%,并通过了 UL-94 V-0 级燃烧测试)和机械性能(拉伸强度提高了 9.13%)。同时,获得的 W/N 织物具有显著的抑烟性能,与纯 W/N 织物相比,产烟率和总产烟量分别降低了 76.4% 和 65.5%。此外,制备的 W/N 织物还具有良好的耐久性。这一创新策略还可用于合成其他纳米材料,为开发高性能阻燃材料铺平了新的道路。
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来源期刊
Thermochimica Acta
Thermochimica Acta 化学-分析化学
CiteScore
6.50
自引率
8.60%
发文量
210
审稿时长
40 days
期刊介绍: Thermochimica Acta publishes original research contributions covering all aspects of thermoanalytical and calorimetric methods and their application to experimental chemistry, physics, biology and engineering. The journal aims to span the whole range from fundamental research to practical application. The journal focuses on the research that advances physical and analytical science of thermal phenomena. Therefore, the manuscripts are expected to provide important insights into the thermal phenomena studied or to propose significant improvements of analytical or computational techniques employed in thermal studies. Manuscripts that report the results of routine thermal measurements are not suitable for publication in Thermochimica Acta. The journal particularly welcomes papers from newly emerging areas as well as from the traditional strength areas: - New and improved instrumentation and methods - Thermal properties and behavior of materials - Kinetics of thermally stimulated processes
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