Preparation of MUF/α-ZrP@MnHP@APP composite nanolayered flame retardant coating for application on expanded polystyrene (EPS) foam

IF 13.2 1区工程技术 Q1 ENGINEERING, CHEMICAL

Chemical Engineering Journal Pub Date : 2025-10-13 DOI:10.1016/j.cej.2025.169600

Wei Zhang, Yifu Xiang, Wantong Jiang, Zhixin Yang, Linlin Zhang, Bin Li

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引用次数: 0

Abstract

To enhance the flame retardancy of expandable polystyrene (EPS) foam, this study employed nano‑zirconium phosphate (α-ZrP), sodium phenylphosphinate (PPNa), manganese nitrate tetrahydrate (Mn(NO₃)₂·4H₂O), ammonium polyphosphate (APP), and melamine-modified urea-formaldehyde resin (MUF) as raw materials. By constructing an integrated MUF/α-ZrP@MnHP@APP composite flame-retardant coating on the surface of EPS foam, the flame retardancy of EPS foam was effectively enhanced. Results showed that the EPS/MUF/α-ZrP@MnHP@15APP composite achieved a UL94 vertical burning classification of V-0 and a horizontal burning classification of HB. Specifically, it exhibited a limited oxygen index (LOI) of 57.8 %, a flame growth index (FGI) of 0.22, and a fire performance index (FPI) of 0.33. Compared with pristine EPS, the total heat release (THR) of this composite decreased by 51.50 %, the total smoke production (TSP) decreased by 57.61 %, and the char residue ratio increased from 0.14 % to 29.15 %. Meanwhile, the coating demonstrates excellent mechanical properties, interfacial adhesion, and optical transparency, which effectively balances flame-retardant functionality with the inherent service performance of the base material. This provides an effective strategy for the safe and eco-friendly application of EPS-based thermal insulation materials, and offers significant practical application value along with promising promotion prospects.

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MUF/α-ZrP@MnHP@APP复合纳米层阻燃涂料的制备及其在发泡聚苯乙烯（EPS）泡沫上的应用

为了提高可膨胀聚苯乙烯（EPS）泡沫的阻燃性，本研究以纳米磷酸锆（α-ZrP）、苯基膦酸钠（PPNa）、四水硝酸锰（Mn(NO3)2·4H2O）、聚磷酸铵（APP）和三聚氰胺改性脲醛树脂（MUF）为原料。通过在EPS泡沫表面构建一体化的MUF/α-ZrP@MnHP@APP复合阻燃涂层，有效提高了EPS泡沫的阻燃性能。结果表明，EPS/MUF/α-ZrP@MnHP@15APP复合材料达到UL94的V-0垂直燃烧分级和HB水平燃烧分级。其中，限氧指数（LOI）为57.8 %，火焰生长指数（FGI）为0.22，防火性能指数（FPI）为0.33。与原始EPS相比，该复合材料的总放热率（THR）降低了51.50 %，总产烟率（TSP）降低了57.61 %，炭渣比从0.14 %提高到29.15 %。同时，涂层表现出优异的力学性能、界面附着力和光学透明度，有效地平衡了阻燃功能与基材固有的使用性能。这为eps基保温材料的安全环保应用提供了有效的策略，具有重要的实际应用价值和良好的推广前景。

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来源期刊

Chemical Engineering Journal 工程技术-工程：化工

CiteScore

21.70

自引率

9.30%

发文量

6781

审稿时长

2.4 months

期刊介绍： The Chemical Engineering Journal is an international research journal that invites contributions of original and novel fundamental research. It aims to provide an international platform for presenting original fundamental research, interpretative reviews, and discussions on new developments in chemical engineering. The journal welcomes papers that describe novel theory and its practical application, as well as those that demonstrate the transfer of techniques from other disciplines. It also welcomes reports on carefully conducted experimental work that is soundly interpreted. The main focus of the journal is on original and rigorous research results that have broad significance. The Catalysis section within the Chemical Engineering Journal focuses specifically on Experimental and Theoretical studies in the fields of heterogeneous catalysis, molecular catalysis, and biocatalysis. These studies have industrial impact on various sectors such as chemicals, energy, materials, foods, healthcare, and environmental protection.