伽马射线和硬脂酸对碳酸钙的影响及其对环氧基复合材料性能的影响

IF 1.4 3区 化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR
Ali A. M. Yassene, Eman H. Awad, Ahmed A. Hegazy
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引用次数: 0

摘要

本研究的目的是生产环氧树脂和碳酸钙(EP/CaCO3)的复合材料,并研究用硬脂酸和γ射线处理 CaCO3 填料如何影响环氧树脂复合材料的性能,从而提高其在一系列应用中的适用性。将不同重量百分比的未处理和处理过的 CaCO3 粉末添加到环氧树脂(EP)中,制成含有不同数量 CaCO3 填料(5%、10%、20%、30% 和 40%)的 EP/CaCO3 复合材料。研究了硬脂酸处理和不同剂量的伽马辐射对 CaCO3 的影响。对复合材料的各种性能进行了表征,包括机械性能(劈裂拉伸强度、冲击强度)、热性能(TGA 和尺寸热分析)以及形态扫描电镜检查。分析结果表明,硬脂酸单层在 EP 基质中起到偶联剂的作用,并能有效包覆 CaCO3 颗粒。硬脂酸对 CaCO3 的改性以及 30 kGy 伽马射线的照射表明,负载不同浓度 CaCO3 的环氧树脂复合材料的热稳定性和机械质量都有显著改善。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The effect of gamma rays and stearic acid on calcium carbonate and its impact on the properties of epoxy-based composites
The purpose of this research is to produce composites of epoxy resin and calcium carbonate (EP/CaCO3) and investigate how treating the CaCO3 filler with stearic acid and gamma radiation affects the properties of the epoxy composites, enhancing their suitability for a range of applications. The CaCO3 powder was subjected to stearic acid treatment and later exposed to γ-radiation at various doses namely (10, 20 and 30 kGy), Different weight percentages of untreated and treated CaCO3 powder were added to epoxy resin (EP) to create EP/CaCO3 composites loaded with varying amounts of CaCO3 filler (5 %, 10 %, 20 %, 30 %, and 40 %). The influence of both stearic acid treatment and different doses of gamma radiation on CaCO3 was investigated. The composites were subjected to characterization of various properties including mechanical (splitting tensile strength, impact strength), thermal (TGA and dimensional thermal analysis) as well as morphological SEM examination. The analysis’ findings demonstrated that the stearic acid monolayer functions as a coupling agent in the EP matrix and can coat CaCO3 particles efficiently. The modification of CaCO3 by stearic acid and exposure to 30 kGy of gamma radiation shows a notable improvement in thermal stability and mechanical qualities for the epoxy composites loaded with various CaCO3 concentrations.
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来源期刊
Radiochimica Acta
Radiochimica Acta 化学-核科学技术
CiteScore
2.90
自引率
16.70%
发文量
78
审稿时长
6 months
期刊介绍: Radiochimica Acta publishes manuscripts encompassing chemical aspects of nuclear science and technology.
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