Study on flame retardant properties of epoxy composites using circular economy material hydroxyapatite combined with DOPO-HQ

IF 1.8 4区物理与天体物理 Q3 PHYSICS, APPLIED Modern Physics Letters B Pub Date : 2024-03-23 DOI:10.1142/s0217984924410045

Ming-Yuan Shen, Chen-Feng Kuan, Hsu-Chiang Kuan, Lu-Ying Lin, Chin-Lung Chiang

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Abstract

In this study, hydroxyapatite (HA) was extracted from biological waste. HA was modified by N,N-diglycidylaniline (NDY) and DOPO-HQ to obtain the flame retardant which was added to epoxy resin (EP) to prepare the composite. The flame retardancy of the composites was measured by the horizontal and vertical combustion tester (UL-94) and the limiting oxygen index (LOI), the thermal property was carried out by the thermogravimetric analyzer (TGA), and the surface morphology was observed by the field emission scanning electron microscope (SEM). The UL-94 grade of pure EP is a fail grade, and the LOI value was 22%. After adding HA-NDY-DOPOHQ (weight ratio 1:2:1) 40wt.% flame retardant, the UL-94 grade of the composites was raised to V-1, and the LOI value promoted to 28%, a total increase of 6%. Composite materials had excellent thermal stability and flame retardancy and could be used in fireproof panels for energy storage systems to prevent thermal runaway, and could also be used in building materials.

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利用循环经济材料羟基磷灰石和 DOPO-HQ 对环氧树脂复合材料阻燃性能的研究

本研究从生物废料中提取了羟基磷灰石（HA）。通过N,N-二缩水甘油基苯胺（NDY）和DOPO-HQ对HA进行改性，得到阻燃剂，并将其添加到环氧树脂（EP）中制备复合材料。复合材料的阻燃性能由水平和垂直燃烧试验机（UL-94）和极限氧指数（LOI）测定，热性能由热重分析仪（TGA）测定，表面形貌由场发射扫描电子显微镜（SEM）观察。纯 EP 的 UL-94 级为不合格级，LOI 值为 22%。加入 HA-NDY-DOPOHQ（重量比 1:2:1）40wt.%阻燃剂后，复合材料的 UL-94 等级提高到 V-1，LOI 值提高到 28%，总共提高了 6%。复合材料具有优异的热稳定性和阻燃性，可用于储能系统的防火板，防止热失控，也可用于建筑材料。

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来源期刊

Modern Physics Letters B 物理-物理：凝聚态物理

CiteScore

3.70

自引率

10.50%

发文量

235

审稿时长

5.9 months

期刊介绍： MPLB opens a channel for the fast circulation of important and useful research findings in Condensed Matter Physics, Statistical Physics, as well as Atomic, Molecular and Optical Physics. A strong emphasis is placed on topics of current interest, such as cold atoms and molecules, new topological materials and phases, and novel low-dimensional materials. The journal also contains a Brief Reviews section with the purpose of publishing short reports on the latest experimental findings and urgent new theoretical developments.