Mechanically reinforced and flame-retardant epoxy resin nanocomposite based on molecular engineering of POSS

IF 6 2区材料科学 Q1 MATERIALS SCIENCE, CHARACTERIZATION & TESTING Polymer Testing Pub Date : 2025-02-01 DOI:10.1016/j.polymertesting.2025.108719

Cheng Liu , Dongyang Zhuang , Yan Zhou , Jihua Liao , Shengping Dai , Changwang Pan , Yuntong Li , Lizong Dai , Wei Wang

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Abstract

The existing flame retardants are extensively utilized for epoxy resin (EP) in the field of engineering materials with good flame retardancy. Nevertheless, their introduction often brings a substantial decrease in mechanical properties of EP. To tackle this challenge, a multifunctional nano flame-retardant (PoDOH) that is designed to enhance both the flame-retardant and mechanical properties for EP simultaneously was synthesized in this study. The results demonstrate that for EP-10 %, its hardness increased by 34.8 %, and Young's modulus increased by 25.4 %, respectively, owing to the strong interfacial interaction among EP and PoDOH derived from the ring-opening reaction. Moreover, the synergistic action of the various flame retardant elements present in PoDOH imparts excellent flame retardancy to EP-10 % (V-0 rating, LOI = 32.6 % and PHRR decreased by 48.82 %). These findings indicate that PoDOH holds great potential as a versatile and efficient flame retardant for manufacturing high-performance EP.

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基于POSS分子工程的机械增强阻燃环氧树脂纳米复合材料

现有阻燃剂广泛应用于环氧树脂（EP）等具有良好阻燃性的工程材料领域。然而，它们的引入往往会导致EP力学性能的大幅下降。为了解决这一挑战，本研究合成了一种多功能纳米阻燃剂（PoDOH），该阻燃剂旨在同时提高EP的阻燃性能和机械性能。结果表明，当EP- 10%时，EP与PoDOH之间的开环反应产生了强烈的界面相互作用，EP的硬度和杨氏模量分别提高了34.8%和25.4%。此外，PoDOH中存在的各种阻燃元素的协同作用使ep - 10%具有优异的阻燃性（V-0额定值，LOI = 32.6%， PHRR降低48.82%）。这些研究结果表明，PoDOH作为一种多功能、高效的阻燃剂在制造高性能EP方面具有很大的潜力。

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来源期刊

Polymer Testing 工程技术-材料科学：表征与测试

CiteScore

10.70

自引率

5.90%

发文量

328

审稿时长

44 days

期刊介绍： Polymer Testing focuses on the testing, analysis and characterization of polymer materials, including both synthetic and natural or biobased polymers. Novel testing methods and the testing of novel polymeric materials in bulk, solution and dispersion is covered. In addition, we welcome the submission of the testing of polymeric materials for a wide range of applications and industrial products as well as nanoscale characterization. The scope includes but is not limited to the following main topics: Novel testing methods and Chemical analysis • mechanical, thermal, electrical, chemical, imaging, spectroscopy, scattering and rheology Physical properties and behaviour of novel polymer systems • nanoscale properties, morphology, transport properties Degradation and recycling of polymeric materials when combined with novel testing or characterization methods • degradation, biodegradation, ageing and fire retardancy Modelling and Simulation work will be only considered when it is linked to new or previously published experimental results.