用二氧化硅气凝胶和聚磷酸铵添加剂增强环氧基涂层的力学性能

Ramin Riahipour, Mohammad Saber Nemati, Mehdi Zadehmohamad, M. Abadyan, M. Tehrani, M. Baniassadi
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引用次数: 2

摘要

阻燃剂(FR)添加剂会降低聚合物的力学性能。本文研究了以聚磷酸铵(APP)和二氧化硅气凝胶(SAG)两种常用的FR助剂制备的FR环氧复合材料。这些复合材料的几种力学性能,包括压缩,显微硬度,和Izod冲击,研究了不同的填料负载。10 vol.% APP的加入虽然提高了抗压模量、屈服强度和显微硬度,但降低了冲击强度。SAG的掺入使复合材料的韧性增强,冲击强度提高,但压缩性能变差。含SAG和APP的样品表现出协同效应,表现为压缩性能和硬度的增强。本研究结果可以指导具有优异阻燃性能和力学性能的环氧树脂的设计。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Mechanical properties of an epoxy-based coating reinforced with silica aerogel and ammonium polyphosphate additives
Flame retardant (FR) additives may degrade polymers’ mechanical performance. In this work, FR epoxy composites fabricated based on two popular FR agents of ammonium polyphosphate (APP) and silica aerogel (SAG) are investigated. Several mechanical properties of these composites, including compressive, micro-hardness, and Izod impact, were investigated for different filler loadings. Although the addition of 10 vol.% APP improved compressive modulus, yield strength, and micro-hardness, it degraded the impact strength. The incorporation of SAG made the composites more ductile, improved the impact strength, but deteriorated their compressive properties. Samples containing both SAG and APP demonstrated synergetic effects evident by their enhanced compressive properties and hardness. The findings of this study can guide the design of epoxies with both exceptional FR and mechanical performance.
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