بررسی اثر هم‌افزایی نانو اکسیدگرافن کاهش‌یافته و نانولوله کربنی چندجداره بر روی خواص مکانیکی نانوکامپوزیت اپوکسی

نوع مقاله : مقاله پژوهشی

نویسندگان

1 مربی، دپارتمان مهندسی مکانیک، دانشکده شماره 2، دانشگاه فنی و حرفه‌ای استان کرمانشاه، کرمانشاه

2 استادیار، گروه مهندسی مکانیک، دانشگاه صنعتی کرمانشاه، کرمانشاه

3 دانشیار، گروه مهندسی مکانیک، دانشگاه رازی کرمانشاه، کرمانشاه

چکیده

دراین تحقیق، اثر هم‌افزایی دو نانوذره اکسیدگرافن کاهش‌یافته و نانولوله‌کربنی چندجداره بر روی خواص مکانیکی نانوکامپوزیت اپوکسی بررسی و مطالعه شده‌است. در گام نخست، نانوکامپوزیت اپوکسی/نانولوله کربنی چندجداره با درصدهای وزنی نانولوله‌کربنی 0/02، 0/04، 0/06، 0/08 و0/1 با روش مخلوط‌سازی مستقیم ساخته شده و با آزمون کشش، خواص مکانیکی بدست آمده‌است. نتایج برای 0/40 درصد باعث بهبود مدول یانگ، تنش نهایی و تنش تسلیم به ترتیب 35/7، 21/7 و 12/47 درصد شده‌است. در گام دوم، نانوکامپوزیت اپوکسی/نانولوله اکسیدگرافن کاهش‌یافته با 0/2، 0/4، 0/6، 0/8 و 1درصد ساخته شده‌است. نتایج برای 0/6 درصد، باعث بهبود مدول یانگ، تنش نهایی و تنش تسلیم به ترتیب37/6، 18/1 و 13/14 درصد شده‌است. در گام سوم، اثر درصدهای مختلف نانواکسیدگرافن کاهش‌یافته بر روی خواص نانوکامپوزیت با 0/04درصد نانولوله‌کربنی چند جداره بررسی شد که افزایش مدول یانگ، تنش نهایی و تنش تسلیم برای نانوکامپوزیت با  0/04درصد نانولوله کربنی چند جداره و 0/4 درصد نانواکسیدگرافن کاهش‌یافته ( نسبت اختلاط 1 به 10 ) را نشان داد. براساس این نسبت اختلاط نتایج برای 0/06درصد نانولوله کربنی چندجداره و 0/6 درصد نانواکسیدگرافن کاهش‌یافته باعث بهبود مدول یانگ، تنش نهایی و تنش تسلیم به ترتیب 42/2، 25/88 و 18/97 درصد شده‌است. همچنین جهت مشاهده توزیع نانوذرات و نوع شکست، آنالیز سطح شکست نمونه‌ها انجام شده‌است.

کلیدواژه‌ها

موضوعات


عنوان مقاله [English]

A study on the synergistic influence of reduced graphene oxide and MWCNTs on the mechanical properties of epoxy nanocomposite

نویسندگان [English]

  • Mohammad Amin Bahrami 1
  • Mahmood Heshmati 2
  • Saeid Feli 3
1 Department of Mechanical Engineering, Faculty of No.2 Kermanshah, Technical and Vocational University, Kermanshah, Iran
2 Department of Mechanical Engineering, Kermanshah University of Technology, Kermanshah, Iran
3 Department of Mechanical Engineering, Razi University, Kermanshah, Iran
چکیده [English]

In this study, the synergistic influence of reduced graphene oxide and multi-walled carbon nanotubes  on the mechanical properties of epoxy nanocomposites was investigated. In the first step, the epoxy nanocomposite specimens reinforced with 0.02, 0.04, 0.06, 0.08 and 0.1 multi-walled carbon nanotubes weight percentages fabricated using direct homogenization technique. The mechanical properties were obtained via a tensile test setup. The results showed the 35.7%, 21.7% and 12.47% increase in Young's modulus, ultimate stress and yield stress of the 0.04% multi-walled carbon nanotubes reinforced specimen. In the second step, the epoxy reinforced with 0.2, 0.4, 0.6, 0.8 and 1 reduced graphene oxide weight percentages fabricated. For the 0.6% reduced graphene oxide reinforced specimen, 37.6%, 18.1% and 13.14% increase in Young's modulus, ultimate stress and yield stress were seen. Next, the effect of different reduced graphene oxide content on 0.04% multi-walled carbon nanotubes reinforced epoxy was investigated. The obtained results demonstrated the increase in the mechanical properties of 0.04% multi-walled carbon nanotubes -0.4% reduced graphene oxide (Mixing ratio 1: 10). Due to this mixing ratio for 0.06% multi-walled carbon nanotubes -0.6% reduced graphene oxide specimen, 42.2%, 25.88% and 18.97% increase in Young's modulus, ultimate stress and yield stress were seen. The analysis of specimens' fracture surface was performed to observe the failure modes and dispersion of nanoparticles in the epoxy matrix. The results revealed that mechanical properties can change significantly by adding two different nanoparticles, simultaneously.

کلیدواژه‌ها [English]

  • Nanocomposite
  • Synergistic Influence
  • Reduced graphene oxide
  • Multi-walled carbon nanotubes
  • Mechanical Properties
[1] D.G. Papageorgiou, I.A. Kinloch, R.J. Young, Mechanical properties of graphene and graphene-based nanocomposites, Progress in Materials Science, 90 (2017) 75-127.
[2] C. May, Epoxy resins: chemistry and technology, CRC press, 1987.
[3] J. Liang, Y. Huang, L. Zhang, Y. Wang, Y. Ma, T. Guo, Y. Chen, Molecular‐level dispersion of graphene into poly (vinyl alcohol) and effective reinforcement of their nanocomposites, Advanced Functional Materials, 19(14) (2009) 2297-2302.
[4] B.S. TK, A.B. Nair, B.T. Abraham, P.S. Beegum, E.T. Thachil, Microwave exfoliated reduced graphene oxide epoxy nanocomposites for high performance applications, Polymer, 55(16) (2014) 3614-3627.
[5] N. Yousefi, X. Lin, Q. Zheng, X. Shen, J.R. Pothnis, J. Jia, E. Zussman, J.-K. Kim, Simultaneous in situ reduction, self-alignment and covalent bonding in graphene oxide/epoxy composites, Carbon, 59 (2013) 406-417.
[6] L.-C. Tang, Y.-J. Wan, D. Yan, Y.-B. Pei, L. Zhao, Y.-B. Li, L.-B. Wu, J.-X. Jiang, G.-Q. Lai, The effect of graphene dispersion on the mechanical properties of graphene/epoxy composites, Carbon, 60 (2013) 16-27.
[7] Y. Li, R. Umer, A. Isakovic, Y.A. Samad, L. Zheng, K. Liao, Synergistic toughening of epoxy with carbon nanotubes and graphene oxide for improved long-term performance, RSC advances, 3(23) (2013) 8849-8856.
[8] P.-N. Wang, T.-H. Hsieh, C.-L. Chiang, M.-Y. Shen, Synergetic effects of mechanical properties on graphene nanoplatelet and multiwalled carbon nanotube hybrids reinforced epoxy/carbon fiber composites, Journal of Nanomaterials, 2015 (2015).
[9] W. Li, A. Dichiara, J. Bai, Carbon nanotube–graphene nanoplatelet hybrids as high-performance multifunctional reinforcements in epoxy composites, Composites Science and Technology, 74 (2013) 221-227.
[10] L. Yue, G. Pircheraghi, S.A. Monemian, I. Manas-Zloczower, Epoxy composites with carbon nanotubes and graphene nanoplatelets–Dispersion and synergy effects, Carbon, 78 (2014) 268-278.
[11] S.-Y. Yang, W.-N. Lin, Y.-L. Huang, H.-W. Tien, J.-Y. Wang, C.-C.M. Ma, S.-M. Li, Y.-S. Wang, Synergetic effects of graphene platelets and carbon nanotubes on the mechanical and thermal properties of epoxy composites, Carbon, 49(3) (2011) 793-803.
[12] D. Ponnamma, K.K. Sadasivuni, M. Strankowski, Q. Guo, S. Thomas, Synergistic effect of multi walled carbon nanotubes and reduced graphene oxides in natural rubber for sensing application, Soft Matter, 9(43) (2013) 10343-10353.
[13] E. Wang, Y. Dong, M.Z. Islam, L. Yu, F. Liu, S. Chen, X. Qi, Y. Zhu, Y. Fu, Z. Xu, Effect of graphene oxide-carbon nanotube hybrid filler on the mechanical property and thermal response speed of shape memory epoxy composites, Composites Science and Technology, 169 (2019) 209-216.
[14] Y.-M. Jen, J.-C. Huang, K.-Y. Zheng, Synergistic Effect of Multi-Walled Carbon Nanotubes and Graphene Nanoplatelets on the Monotonic and Fatigue Properties of Uncracked and Cracked Epoxy Composites, Polymers, 12(9) (2020) 1895.
[15] A. Bisht, K. Dasgupta, D. Lahiri, Evaluating the effect of addition of nanodiamond on the synergistic effect of graphene-carbon nanotube hybrid on the mechanical properties of epoxy based composites, Polymer Testing, 81 (2020) 106274.
[16] Y. Li, X. Huang, L. Zeng, R. Li, H. Tian, X. Fu, Y. Wang, W.-H. Zhong, A review of the electrical and mechanical properties of carbon nanofiller-reinforced polymer composites, Journal of Materials Science, 54(2) (2019) 1036-1076.
[17] M.M. Shokrieh, A. Zeinedini, S.M. Ghoreishi, Effects of adding multiwall carbon nanotubes on mechanical properties of Epoxy resin and Glass/Epoxy laminated composites, Modares Mechanical Engineering, 15(9) (2015) 125-133. (in Persian)
[18] Standard Test Method for Tensile Properties of    Plastics, Annual Book of ASTM Standard, 08.01, D638-14, 2010.
[19] J. Ervina, M. Mariatti, S. Hamdan, Mechanical, electrical and thermal properties of multi-walled carbon nanotubes/epoxy composites: effect of post-processing techniques and filler loading, Polymer Bulletin, 74(7) (2017) 2513-2533.
[20] R. Ghajar, M.M. Shokrieh, A.R. Shajari, An experimental investigation on the viscoelastic properties of CNT reinforced CY 219 epoxy resin, using DMTA and creep tests, Materials Research Express, 5(8) (2018) 085033.
[21] R. Aradhana, S. Mohanty, S.K. Nayak, Comparison of mechanical, electrical and thermal properties in graphene oxide and reduced graphene oxide filled epoxy nanocomposite adhesives, Polymer, 141 (2018) 109-123.
[22] H. Khosravi, R. Eslami-Farsani, H. Ebrahimnezhad-Khaljiri, An experimental study on mechanical properties of epoxy/basalt/carbon nanotube composites under tensile and flexural loadings, J. Sci. Tehnol. Compos, 3 (2016) 187-194. (in Persian)