含磷三唑化合物的合成及其对环氧树脂阻燃性和力学性能的增强作用

IF 1.8 4区化学 Q3 POLYMER SCIENCE

High Performance Polymers Pub Date : 2023-06-30 DOI:10.1177/09540083231187748

Menghua Ma, Rui Chen, Wei Huang, Shidong Zhao, Guohui Li, Lingling Bao

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引用次数: 0

摘要

以富氮的3,5-二氨基-1,2,4-三唑、DOPO和肉桂醛为原料，成功合成了高效含P/ n阻燃剂CDD。在4 wt% CDD的帮助下，环氧树脂(EP)样品通过了UL-94 V-0测试，其LOI值提高到33.5%。EP/4 wt%CDD样品在锥形量热计(CC)测试中也表现良好。例如，EP/4 wt%CDD的放热率峰值降至603 kW/m2，为未添加阻燃剂EP样品的56.8%。所有这些细节都表明CDD具有非常有效的防火性能。此外，CDD的加入也大大提高了EP的机械强度。EP/4 wt%CDD试样的抗拉强度、抗折强度和抗冲击强度分别提高到102 MPa、124 MPa和38 kJ m−2，分别提高了对照组的118.6%、129.2%和126.7%。最后，通过FTIR、XPS、拉曼光谱和SEM对CDD的阻燃机理进行了研究。结果表明，CDD优异的耐火性能主要归功于其凝聚相中富磷炭层的生成。

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Synthesis of a phosphorus and triazole-containing compound and its enhancement on flame retardancy and mechanical properties of an epoxy resin

A high effective P/N-containing flame retardant additive CDD was triumphantly synthesized with nitrogen-rich 3,5-Diamino-1,2,4-triazole, DOPO and cinnamaldehyde. With the help of 4 wt% CDD, Epoxy resin (EP) sample succeeded in UL-94 V-0 test, and improved its LOI value to 33.5%. EP/4 wt%CDD sample also performed very well in cone calorimeter (CC) test. For example, the peak of heat release rate of EP/4 wt%CDD decreased to 603 kW/m2, which was 56.8% of EP sample without flame retardants. All these details showed that CDD was highly effective in fire resistance. Besides, the addition of CDD also drastically improved mechanical strength of EP. Tensile strength, flexural strength and izod iMPact strength of EP/4 wt%CDD sample was increased to 102 MPa, 124 MPa and 38 kJ m−2, which was 118.6%, 129.2% and 126.7% of control group. At last, the flame-retardant mechanism of CDD was studied by FTIR, XPS, Raman spectra, and SEM. The results showed that CDD’s perfect performance in fire resistance was ascribed to the generation of phosphorus-rich char layer in condensed phase.

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来源期刊

High Performance Polymers 化学-高分子科学

CiteScore

4.20

自引率

14.30%

发文量

106

审稿时长

1.2 months

期刊介绍： Health Services Management Research (HSMR) is an authoritative international peer-reviewed journal which publishes theoretically and empirically rigorous research on questions of enduring interest to health-care organizations and systems throughout the world. Examining the real issues confronting health services management, it provides an independent view and cutting edge evidence-based research to guide policy-making and management decision-making. HSMR aims to be a forum serving an international community of academics and researchers on the one hand and healthcare managers, executives, policymakers and clinicians and all health professionals on the other. HSMR wants to make a substantial contribution to both research and managerial practice, with particular emphasis placed on publishing studies which offer actionable findings and on promoting knowledge mobilisation toward theoretical advances. All papers are expected to be of interest and relevance to an international audience. HSMR aims at enhance communication between academics and practitioners concerned with developing, implementing, and analysing health management issues, reforms and innovations primarily in European health systems and in all countries with developed health systems. Papers can report research undertaken in a single country, but they need to locate and explain their findings in an international context, and in international literature.