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Comparative study of gamma and ion beam irradiation of polymeric nanocomposite on electrical conductivity

机译:聚合物纳米复合材料对电导率的γ和离子束照射的比较研究

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Poly(vinyl alcohol) (PVA) was used to prepare nanocomposites of multi-wall carbon nanotubes (MWCNT) and functionalized carbon nanotubes (MWCNT-NH2) in existence of 2-carboxyethyl acrylate oligomers (CEA). Radiation-induced crosslinking of the prepared matrix was carried out via gamma and ion beam irradiation. A comparative study of gamma and ion beam irradiation effect on the electrical conductivity of nanocomposite was conducted. The gelation of the gamma irradiated matrix outperforms the ion beam irradiated matrix. The order of gelation is PVA(PVA/CEA)(PVA/CEA)-MWCNT(PVA/CEA)-MWCNT-NH2. There is a significant reduction in the swelling of the nanocomposite. The formation of nanocomposites was confirmed by scanning electron microscopy, energy-dispersive X-ray (EDX) and FTIR examinations. The direct current electrical properties of PVA/nanocomposites are examined at room temperature by applying electric voltage from 1 to 20 V. The results revealed that the electrical conductivity is increased by adding the carbon nanotubes and irradiation by gamma and ion beam. At an applied electric voltage 20 V, in the electrical conductivity of the unirradiated PVA was from 9.20 x 10(-8) Scm(-1). After adding MWCNT an increase up to 4.70 x 10(-5) Scm(-1) was observed. While after ion beam irradiation, a further increase up to 9.30 x 10(-5) Scm(-1) was noticed. (c) 2017 Wiley Periodicals, Inc. J. Appl. Polym. Sci. 2018, 135, 46146.
机译:使用聚(乙烯醇)(PVA)制备多壁碳纳米管(MWCNT)和官能化碳纳米管(MWCNT-NH2)的纳米复合材料,其存在2-羧乙基丙烯酸酯低聚物(CEA)。通过γ和离子束照射进行制备基质的辐射诱导的交联。进行了对纳米复合材料电导率的γ和离子束照射影响的对比研究。伽马辐照基质的凝胶化优于离子束照射基质。凝胶化的顺序是PVA&(PVA / CEA)&(PVA / CEA)-MWCNT>(PVA / CEA)-MWCNT-NH2。纳米复合材料的溶胀存在显着降低。通过扫描电子显微镜,能量分散X射线(EDX)和FTIR检查来确认纳米复合材料的形成。通过施加来自1至20V的电压在室温下检查PVA /纳米复合材料的直流电性能。结果显示通过加入碳纳米管和γ和离子束照射来增加电导率。在施加的电压20V下,在未照射的PVA的电导率中为9.20×10(-8)SCM(-1)。添加MWCNT后,观察到高达4.70×10(-5)SCM(-1)。在离子束照射后,注意到高达9.30×10(-5)SCM(-1)的进一步增加。 (c)2017 Wiley期刊,Inc.J.Phill。聚合物。 SCI。 2018,135,46146。

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