Insight on the properties of multi-walled carbon nanotubes reinforced nitrile rubber composites cured by ionizing radiation or peroxide: a comparative study

IF 1.4 3区化学 Q4 CHEMISTRY, INORGANIC & NUCLEAR

Radiochimica Acta Pub Date : 2024-04-17 DOI:10.1515/ract-2023-0244

Khaled F. El-Nemr, Hamdi Radi, Aman I. Khalaf, Eman M. Hamdy

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Abstract

A comparative study was carried out between ionizing radiation and dicumyl peroxide (Dicup) as two different curing systems for nitrile rubber (NBR) reinforced with different concentrations of multi-walled carbon nanotubes (MWCNTs). Upon ionizing irradiation, the tensile strength (TS) of the composites increases with increasing absorbed dose up to 50 kGy and then decreases with increasing absorbed dose. TS also increases with increasing of MWCNTs content up to 0.75 phr (part per hundred part of rubber). TS values are decreased in the case of Dicup curing as compared with radiation curing. Other characterizations were made, such as the Differential Scanning Calorimeter (DSC), Fourier transform infrared spectroscopies (FTIR), and morphological characterization, which give further implications for the good compatibility between MWCNTs and NBR phases. A study of the effect of fuel on NBR/MWCNTs composites showed that the composites cured by Dicup had lower values for swelling in fuels when compared with others that were cured by radiation.

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电离辐射或过氧化物固化的多壁碳纳米管增强丁腈橡胶复合材料性能透视：一项比较研究

对于使用不同浓度的多壁碳纳米管（MWCNTs）增强丁腈橡胶（NBR）的两种不同固化体系--电离辐射和过氧化二辛酯（Dicup）进行了比较研究。在电离辐照下，复合材料的拉伸强度（TS）随着吸收剂量的增加而增加，最高可达 50 kGy，然后随着吸收剂量的增加而降低。随着 MWCNTs 含量的增加，TS 也会增加，最高可达 0.75 phr（每百分之一的橡胶）。与辐射硫化相比，Dicup 硫化的 TS 值降低。还进行了其他表征，如差示扫描量热计 (DSC)、傅立叶变换红外光谱 (FTIR) 和形态表征，这些表征进一步说明了 MWCNT 与丁腈橡胶相之间的良好兼容性。燃料对 NBR/MWCNTs 复合材料影响的研究表明，与其他通过辐射固化的复合材料相比，通过 Dicup 固化的复合材料在燃料中的膨胀值较低。

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来源期刊

Radiochimica Acta 化学-核科学技术

CiteScore

2.90

自引率

16.70%

发文量

审稿时长

6 months

期刊介绍： Radiochimica Acta publishes manuscripts encompassing chemical aspects of nuclear science and technology.