نوع مقاله : مقاله پژوهشی

نویسندگان

1 دانشجوی کارشناسی ارشد، مهندسی مکانیک، دانشگاه تربیت دبیر شهید رجایی، تهران.

2 استادیار، مهندسی مکانیک، دانشگاه تربیت دبیر شهید رجایی، تهرا ن.

10.22068/jstc.2021.529756.1723

چکیده

در این مقاله، خواص مکانیکی نانوکامپوزیت‌هایی بر پایه ماتریسی از دو فاز پلیمری پلی‌آمید 6و اتیلن پروپیلن دی ان مونومر (EPDM) تقویت شده با نانولوله‌های کربنی بررسی شده است. ترکیبات شامل 0% ، 1% ، 2 % و 3% وزنی نانولوله کربنی و نیز 5 % و 10% وزنی EPDM-G-MA به‌عنوان سازگار کننده و 10% و20 % وزنی EPDM هستند که توسط یک مخلوط‌کن داخلی تهیه شدند. نمونه‌ها برای انجام آزمون‌های مکانیکی توسط یک دستگاه پرس داغ تهیه شدند. آزمون‌های مکانیکی برای تعیین استحکام‌های ضربه و کشش، مدول الاستیسیته و ازدیاد طول در شکست انجام شدند. مشاهده شد که افزودن 1% وزنی نانولوله کربنی، استحکام ضربه را 12%، استحکام کششی را 25% و مدول الاستیک را 43% افزایش می‌دهد ولی ازدیاد طول در شکست را 13% کاهش می‌دهد. همچنین با حضور10 % وزنیEPDM ، استحکام ضربه 27% و ازدیاد طول در شکست 34% افزایش یافته ولی استحکام کششی پلی‌آمید 5% و مدول الاستیک آن 19% کاهش می‌یابد. برای بهبود موارد ذکر شده با افزودن 5% EPDM-G-MA استحکام ضربه 14% ، استحکام کششی 5% ، مدول الاستیک 20% و ازدیاد طول در شکست 13% افزایش پیدا کرد. نهایتاً با افزودن نانولوله‌های کربنی و ترکیب EPDM و EPDM-G-MA، همه خواص مکانیکی مذکور در پلی‌آمید6، بهبود داده شد.

کلیدواژه‌ها

عنوان مقاله [English]

Experimental Analysis of Mechanical Properties of Nanocomposites Based on Poly amide 6/ EPDM /Carbon Nanotubes

نویسندگان [English]

  • Ehsan Hamidi 1
  • valiollah Panahizadeh 2

1 Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran.

2 Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran.

چکیده [English]

In this paper, the mechanical properties of nanocomposites based on a matrix of two phases of polyamide 6 polymer and ethylene propylene diene monomer (EPDM) reinforced with carbon nanotubes are investigated. The compounds include 0%, 1%, 2% and 3% by weight of carbon nanotubes as well as 5 and 10% by weight of EPDM-G-MA as compatible and 10 and 20% by weight of EPDM prepared by an internal mixer. Samples were prepared for mechanical tests by a hot press machine. Mechanical tests were performed to determine the impact and tensile strengths, modulus of elasticity and elongation at failure. It was observed that adding 1% by weight of carbon nanotubes increases the impact strength by 12%, tensile strength by 25% and elastic modulus by 43%, but decreases the failure length by 13%. Also, with the presence of 10% EPDM, impact strength increased by 27% and elongation at fracture by 34%, but the tensile strength of polyamide decreased by 5% and its elastic modulus by 19%. To improve the mentioned cases, by adding 5% EPDM-G-MA, the impact strength increased by 14%, the tensile strength by 5%, the elastic modulus by 20% and the elongation at break by 13%. Finally, by adding carbon nanotubes and combining EPDM and EPDM-G-MA, all the mechanical properties mentioned in polyamide 6 were improved

کلیدواژه‌ها [English]

  • Nanocomposites
  • Mechanical properties
  • Polyamide
  • EPDM
  • Carbon nanotubes
[1]  Lapcik, L., Jindrova, P., Lapcikova, B., Tamblyn, R. G., “Effect of the Talc Filler Content on the Mechanical Properties of Polypropylene Composites,” Journal of Applied Polymer Science, Vol. 110, No. 5, pp. 2742-2747, 2008.
[2] Zaferani, S. H., “Introduction of Polymer-Based Nanocomposites,” Petroleum University of Technology (PUT), Abadan, Iran, pp 1–25, 2018. 
[3]  Latko, P., Boczkowska, A., “Flexible and Stretchable Electronic Composites,” Springer International Publishing: Berlin, Germany, 2016.
[4]  Sathees Kumar, S., Kanagaraj, G., “Effect of Graphite and Silicon Carbide Fillers on Mechanical Properties of PA6 Polymer Composites,” Journal of Polymer Engineering, Vol.37,No 6, pp.1-11, 2017.
[5]  Paran, S.M.R., Naderi, Gh., Ghoreishy., M.H.R., “ Effect of Halloysite Nanotube on Microstructure, Rheological and Mechanical Properties of Dynamically Vulcanized PA6/NBR Thermoplastic Vulcanizates,” Journal of Soft Materials, Vol. 14, No 3, pp.127-139, 2016.
[6]  Chiu, F.C., Deng, T.L., “Polyamide 4,6 Nanocomposites With and Without the use of a Maleated Polyolefin Elastomer as a Toughener,” Journal of Materials Chemistry and Physics, Vol. 125, No 3, pp.769-776, 2011.
[7]  Liu, P.B., Qiu, J., Fan, P., Zhou, H. W., Xu, W., “Mechanical properties of PA6 blended with SEBS functionalised through ozone treatment,” State Key Laboratory of Polymer Materials Engineering, Sichuan University, Plastics, Rubber and Composites, VOL 36, NO 7/8, pp.304-307, 2007.
[8]  Ren, J., Wang , H., Jian , L., Zhang, J., Yang, Sh., “  Morphological, Thermal and Mechanical Properties of Compatibilized Nylon 6/ABS Blends,” Journal of Macromolecular Science, Part B: Physics, Vol. 47, No 4, pp.712-722, 2008.
[9] Nouri-Niyaraki, M., Ashenai-Ghasemi, F., Ghasemi, I., Daneshpayeh, S., “Experimental Analysis of Graphene Nanoparticles and Glass Fibers Effect on Mechanical and Thermal Properties of Polypropylene/EPDM Based Nanocomposites,” In Persian, Journal of Science and Technology of Composites, Vol. 05, No. 02, pp. 169 176, 2018.
[10] Wang, Q., Zhu, J., Wang, P., Li, L., Yang, Q., Huang, Y., “Effect of Blending Sequence on the Morphology and Properties    of Polyamide 6/EPDM-g-MA/Epoxy Blends,” Journal of Applied    Polymer Science, Vol. 124, 5064–5070, 2012.
[11] Zhang, L., Wan, Ch., Zhang, Y., “Polyamide 6/Maleated Ethylene–Propylene–Diene Rubber/Organoclay Composites with or Without Glycidyl Methacrylate as a Compatibilizer,” Journal ofAppliedPolymer Science, Vol. 110, No 3, pp. 1870–1879, 2008.
[12] Zhang, L., Wan, Ch. Zhang, Y., “Investigation on    Morphology and Mechanical Properties of Polyamide 6/Maleated Ethylene Propylene-Diene Rubber/Organoclay Composites,” Society of Plastics Engineers, Vol. 49, No 3, pp. 209–216, 2009.
[13] Wang, Y.J., Chen, S., Shi, Y.Q., Dong,Y.X., Fu,L.D., Xu, X.B.,  Wang, X., “Mechanical Properties and Tensile Deformation Behavior of Polyamide 6/Maleated and Unmaleated Ethylene Propylene Diene Terpolymer/Nano-CaCO3 Ternary Composites,” Journal of Macromolecular Science, Part B: Physics, Vol. 52, No 6, pp. 797-811, 2013.
[14] Jahed, M., Naderi, Gh., Ghoreishy, M.H.R., “Microstructure, Mechanical, and Rheological Properties of Natural Rubber/Ethylene Propylene Diene Monomer Nanocomposites Reinforced by Multi-Wall Carbon Nanotubes,” Journal of Polymer Composites, Vol. 39, No S2, pp. E745–E753, 2018.
[15]  Ashenai-Ghasemi, F., Saberian, M. H., Ghasemi, I., Daneshpayeh, S., “Experimental Investigation on Mechanical Properties of Hybrid Nano-Composite Based on Epoxy/Graphene Nano-Platelets/ Carboxylated Acrylonitrile Butadiene Rubber,” In Persian, Journal of Science and Technology of Composites, Vol. 5, No. 3, pp. 395-402, 2018.
[16] Garcia, M., Vilet, G.V., Jain, S., “ Polypropylene/SiO2 Nanocomposites with Improved Mechanical Properties,” Journal of Reviews On Advanced Materials, Vol. 6, No 2, pp. 169-175. 2004.
[17] Gang, L., Feng, L.Y., Yuan, Y.F., Xing, Z.Z.,  ji, X.Q., “Effect of Nanoscale SiO2 and TiO2 as the Fillers on the Mechanical Properties and Aging Behavior of Linear Low Density Polyethylene/Low Density Polyethylene Blends,” Journal of Polymers and the Environment, Vol.13, No.4, pp. 339-348, 2005.
[18] AshenaiGhasemi, F., Payganeh, Gh., Rahmani, M., “The Effect of Stearic Acid Surface-Modified Calcium Carbonate Nanoparticles and PP-g-MA on the Mechanical Properties of PP/CaCO3/PP-g-MA Nanocomposites,” In Persian,  Journal of Modares Mechanical Engineering, Vol. 13, No. 4, pp. 139-152, 2013.
[19] Liu, T., Phang, I.Y., Shen, L., Chow, S.Y., Zhang, W.D., “Morphology and Mechanical Properties of Multiwalled Carbon Nanotubes Reinforced Nylon-6 Composites,” Journal of Macromolecules, Vol. 37, No. 19, pp.127-139, 2004.
[20] Chen, P., Kim, H.S., Jin, H.J., “Preparation, Properties and Application of Polyamide/Carbon Nanotube Nanocomposites,” Journal of Macromolecular Research, Vol. 17, No. 4, pp 207-217, 2009.
[21] Palardy, G., Trudel-Boucher, D., Hubert, P., “Investigation of a Postprocessing Method to Tailor the Mechanical Properties of Carbon Nanotube/Polyamide Fibers, Investigation of a Postprocessing Method to Tailor the Mechanical Properties of Carbon Nanotube/Polyamide Fiber,” Journal of  Applied Polymer Science, Vol.130, No 5, pp. 4375–4382, 2013.
[22]   Liao, W. H.,  Tien, H. W.,  Hsiao, S. T., Li, S. M., Wang, Y.S., Huang, Y. L., Wu, Y., "Effects of Multiwalled Carbon Nanotubes Functionalization on the Morphology and Mechanical and Thermal Properties of Carbon Fiber/vinyl Ester Composites,” Journal of ACS Applied Materials & Interfaces, Vol. 5, No 9, pp. 3975-3982, 2013.
[23] Bashiri Goodarzi, H., Yarmohammad Tooski, M., “An Experimental Study of the Effects of Carbon Nanotube and Graphene Addition on the Impact Strength of Epoxy/Basalt Fiber Composite,” In Persian, Journal of Science and Technology of Composites, Vol. 6, No.3, pp. 411-418, 2019.
[24] Shoartz, S. S. and Godman, S. H., “Thermoplastic,” Translation by Abasian, A. and Manochehri, S. and Nazokdast, H., First edition.,  Behrozan Publicatin Company, Tehran, pp.1-276, 1377.
[25] Esmaili, P., Azdast, T., Doniavi, A., Hasanzadeh, R., Mamaghani, S., Eungkee Lee. R., “Experimental Investigation of Mechanical Properties of Injected Polymeric Nanocomposites Containing Multi-Walled Carbon Nanotubes According to Design of Experiments,” In Persian, Journal of Science and Technology of Composites, Vol. 2, No.3, pp. 67-74, 2015.