Document Type : Research Paper
Authors
Department of Mechanical Engineering, Shahid Rajaee Teacher Training University, Tehran, Iran.
Abstract
In this research, the mechanical properties of polyamide 6/polyolefin elastomer (PA6/POE) blends reinforced with carbon nanotubes have been studied. Nanocomposites consisted of 10 and 20 wt% polyolefin elastomer, 0, 1, 2 and 3 wt% carbon nanotubes (MWCNT) and 5 and 10 wt% maleic anhydride (POE-gMA as compatiblizing agent) were made by an internal mixer based on the full factorial design of experiment. Tensile and impact tests were performed to extract mechanical properties including tensile strength, elastic modulus and impact strength. Scanning electron microscope (SEM) were used to observe the dispersion and distribution quality of MWCNT in the matrix. SEM images showed an acceptable distribution of carbon nanotubes up to 2 wt% in both polyamide matrices with 10 and 20 wt%, while adding 3 wt% of nanotubes in both matrices was associated with nanotubes accumulation. The test results showed that the addition of 2 wt% of carbon nanotubes improved the tensile strength and elastic modulus of the compounds by %21 and %23, respectively. the surfaces extracted from full factorial design method showed that there are no notable interaction between the input parameters in the case of mechanical properties. Finally, the R-squared above %92 for all mechanical properties showed that there is a good agreement between the experimental results and the extracted regression models.
Keywords
PA6/NBR Nanocomposite Reinforced with Perlite Nanoparticles”, In Persian, Journal of Science and Technology of Composites, Vol. 8, No. 1, pp. 1421-1430, 2021.
[2] Mirzaei, J., Fereidoon, A., and Ghasemi-Ghalebahman, A., “Experimental analysis of mechanical properties of
graphene/kenaf/basalt reinforced hybrid nanocomposites using response surface methodology”, Journal of the
Brazilian Society of Mechanical Sciences and Engineering, Vol. 43, No. 215, 2021.
[3] Hamidi, E., and Panahizadeh, V., “Experimental Analysis of Mechanical Properties of Nanocomposites Based on Poly
amide 6/ EPDM /Carbon Nanotubes”, In Persian, Journal of Science and Technology of Composites, Vol. 8, No. 1, pp.
1453-1460, 2021.
[4] Utracki, L.A., “Polymer blends handbook, First ed. Kluwer Academic Publishers, Netherlands, pp. 1045-1070, 2002.
[5] Chiu, H.-T., and Chuang, C.-Y., “The mechanical and rheological behavior of the PA/TPU blend with POE-g-MA
modifier”, Journal of Applied Polymer Science, Vol. 115, No. 3, pp. 1278–1282, 2010.
[6] Ararat, C. A., Percino, M. J., and Murillo, E. A., “Compatibilization of LDPE/PA6 by Using a LDPE
Functionalized with a Maleinized Hyperbranched Polyester Polyol”, Macromolecular Research, Vol. 28, No. 3, pp. 203–210, 2019.
[7] Chiu, F.C., and 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.
[8] Wang, C., Su, J.X., Li, J., Yang, H., Zhang, Q., Du, R.N., and Fu, Q., “Phase morphology and toughening mechanism of
polyamide6/EPDM-g-MA blends obtained via dynamic packing injection molding”, Polymer, Vol. 47, No. 9, pp. 3197-3206, 2006.
[9] Potts J. R., “Preparation, Properties, and Structure-Property Relationships of Graphene-Polymer Nanocomposites”,
Ph.D. Thesis, University of Texas, USA, 2012.
[10] Yuen, S.M., Ma, C.C.M., Chiang, C.L., Lin, Y., and Teng, C.C., “Preparation and Morphological, Electrical, and
Mechanical Properties of Polyimide-Grafted MWCNT/Polyimide Composite,” Journal of Polymer Science Part A: Polymer Chemistry, Vol. 45, No. 15, pp. 3349-3358, 2007.
[11] 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.
[12] Esmaili, P., Azdast, T., Doniavi, A., Hasanzadeh, R., Mamaghani, S., and 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.
[13] Irisawa, T., Shimamoto, D., Takeshige, K., Doi, G., Tanabe, Y., and Hotta, Y., “The effects of pulverization treatment for
the mechanical properties of polyamide 6 fiber filled with carbon nanotubes”, Materials Science and Engineering: B,
Vol. 254, No. 114514, 2020.
[14] 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, pp. 5064–5070, 2012.
[15] Mistretta, M.C., Morreale, M., and La Mantia, F.P., “Thermomechanical degradation of polyethylene/polyamide
6 blend-clay nanocomposites,” Polymer degradation and stability, Vol. 99, pp. 61-67, 2014.
[16] Bikshamaiah, N., Babu, N.M., Kumar, D.S., Ramesh, S., Dumpala, M., Sainath, V., and Madhukar, K., “Carbon
nanotube functional group-dependent compatibilization of polyamide 6 and poly(methyl methacrylate) nanocomposites”, Iranian Polymer Journal, Vol. 30, No. 8, pp. 789–799, 2021.
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