Fabrication of Fire-Retardant and Impact-Resistant Hierarchical Rigid Porous Composites via Surface Coating Strategy

IF 4.4 2区化学 Q2 MATERIALS SCIENCE, MULTIDISCIPLINARY

ACS Applied Polymer Materials Pub Date : 2024-06-12 DOI:10.1021/acsapm.4c01196

Miao Liu, Ruizhe Huang, Yongqian Shi*, Peihui Xu, Shiwei Xie, Libi Fu, Jiefeng Gao, Longcheng Tang and Pingan Song,

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Abstract

Rigid polyurethane foam (RPUF) shows great application potential in the fields of architecture, household, and transportation due to its lightweight, durability, and excellent heat insulation. However, it remains challenging to construct flame-retardant and impact-resistant RPUF composites with good thermal insulation through a facile approach. Herein, multifunctional hierarchical RPUF composites were prepared by simple one-pot foaming and brush-coating methods. Due to the hierarchical structure and multifunctional polyborosiloxane/phytic acid/polyethylenimine (PBS/PAP) coating, the as-created foams displayed excellent fire safety and impact resistance. For instance, the peak of heat release rate and total heat release of the RPUF composite with the PBS/PAP coating decreased by 70.1 and 57.0%, respectively, relative to those of pure RPUF. Furthermore, the composite showed good heat insulation and improved thermal stability performance. This work offers a paradigm for the design of multifunctional RPUF composites with outstanding fire resistance, impact resistance, and heat insulation properties, which represent prospective potential in safety protective materials.

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通过表面涂层策略制造阻燃抗冲击分层刚性多孔复合材料

硬质聚氨酯泡沫（RPUF）因其轻质、耐用和出色的隔热性能，在建筑、家居和交通领域显示出巨大的应用潜力。然而，通过简便的方法构建阻燃、抗冲击且具有良好隔热性能的 RPUF 复合材料仍然具有挑战性。本文采用简单的一锅发泡和刷涂方法制备了多功能分层 RPUF 复合材料。由于采用了分层结构和多功能聚硼硅氧烷/酞酸/聚乙烯亚胺（PBS/PAP）涂层，所制备的泡沫具有优异的防火安全性和抗冲击性。例如，与纯 RPUF 相比，带有 PBS/PAP 涂层的 RPUF 复合材料的放热峰值和总放热峰值分别降低了 70.1% 和 57.0%。此外，该复合材料还具有良好的隔热性能和更高的热稳定性能。这项研究为设计具有出色的防火、抗冲击和隔热性能的多功能 RPUF 复合材料提供了范例，代表了安全防护材料的发展前景。

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来源期刊

ACS Applied Polymer Materials Multiple-

CiteScore

7.20

自引率

6.00%

发文量

810

期刊介绍： ACS Applied Polymer Materials is an interdisciplinary journal publishing original research covering all aspects of engineering, chemistry, physics, and biology relevant to applications of polymers. The journal is devoted to reports of new and original experimental and theoretical research of an applied nature that integrates fundamental knowledge in the areas of materials, engineering, physics, bioscience, polymer science and chemistry into important polymer applications. The journal is specifically interested in work that addresses relationships among structure, processing, morphology, chemistry, properties, and function as well as work that provide insights into mechanisms critical to the performance of the polymer for applications.

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