Polímeros: Ciência e Tecnologia
Polímeros: Ciência e Tecnologia
Original Article

Interactions of PP-PET blends modified by montmorillonite with different polarities

Ariane Sarzi Porto; Jefferson Lopes Alves; Ana Rita Morales

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This paper describes the effects of adding organic montmorillonite clays (MMT) with different polarities (one polar and one non-polar) in recycled poly (ethylene terephthalate) (PET) and polypropylene (PP) blends. Styrene-Ethylene/Butylene-Styrene-maleic anhydride-graft (SEBS-g-MA) was used as a compatibilizer. MMT polarity was chosen based on the expected specific interaction of each clay with PET and PP. Samples were evaluated by wide angle X-ray diffraction, scanning electronic microscopy, differential scanning calorimetry, Fourier transform infrared spectroscopy, dynamic mechanical analysis and mechanical tests. The clays caused no statistical change in the mechanical properties high-concentration PET blends, but increased Young’s modulus and decreased the elongation at break, tensile strength and impact strength of high-concentration PP blends. The different interactions between PET and SEBS-g-MA and the level of MMT exfoliation in each polymer-rich phase explained the results.




nanocomposites, blends, montmorillonite, compatibility


1 Manias, E., Touny, A., Wu, L., Strawhecker, K., Lu, B., & Chung, T. C. (2001). Polypropylene/montmorillonite nanocomposites. Review of the synthetic routes and materials properties. Chemistry of Materials, 13(10), 3516-3523. http://dx.doi.org/10.1021/cm0110627.

2 Weng, Z., Wang, J., Senthil, T., & Wu, L. (2016). Mechanical and thermal properties of ABS/montmorillonite nanocomposites for fused deposition modeling 3D printing. Materials & Design, 102, 276-283. http://dx.doi.org/10.1016/j.matdes.2016.04.045.

3 Wang, Y., Wu, G., Kou, K., Pan, C., & Feng, A. (2016). Mechanical, thermal conductive and dielectrical properties of organic montmorillonite reinforced benzoxazine/cyanate ester copolymer for electronic packaging. Journal of Materials Science Materials in Electronics, 27(8), 8279-8287. http://dx.doi.org/10.1007/s10854-016-4834-5.

4 Zhou, J., Yao, Z., Zhou, C., Wei, D., & Li, S. (2014). Mechanical properties of PLA/PBS foamed composites reinforced by organophilic montmorillonite. Journal of Applied Polymer Science, 131(18), 40773. http://dx.doi.org/10.1002/app.40773.

5 Magalhães, N. F., Dahmouche, K., Lopes, G. K., & Andrade, C. T. (2013). Using an organically-modified montmorillonite to compatibilize a biodegradable blend. Applied Clay Science, 72, 1-8. http://dx.doi.org/10.1016/j.clay.2012.12.008.

6 Sengwa, R. J., Choudhary, S., & Sankhla, S. (2010). Dielectric properties of montmorillonite clay filled poly(vinyl alcohol)/poly(ethylene oxide) blend nanocomposites. Composites Science and Technology, 70(11), 1621-1627. http://dx.doi.org/10.1016/j.compscitech.2010.06.003.

7 Cyras, V. P., Manfredi, L. B., Ton-That, M.-T., & Vázquez, A. (2008). Physical and mechanical properties of thermoplastic starch/montmorillonite nanocomposite films. Carbohydrate Polymers, 73(1), 55-63. http://dx.doi.org/10.1016/j.carbpol.2007.11.014.

8 Chen, X., Gao, H., & Ploehn, H. J. (2014). Montmorillonite–levan nanocomposites with improved thermal and mechanical properties. Carbohydrate Polymers, 101, 565-573. http://dx.doi.org/10.1016/j.carbpol.2013.09.073. PMid:24299812.

9 Jollands, M., & Gupta, R. K. (2010). Effect of mixing conditions on mechanical properties of polylactide/montmorillonite clay nanocomposites. Journal of Applied Polymer Science, 118(3), 1489-1493. http://dx.doi.org/10.1002/app.32475.

10 Maddah, H. A. (2016). Polypropylene as a promising plastic: a review. American Journal of Political Science, 6(1), 1-11. http://dx.doi.org/10.5923/j.ajps.20160601.01.

11 Romão, W., Spinacé, M. A. S., & De Paoli, M.-A. (2009). Poly(ethylene terephthalate), PET: a review on the synthesis processes, degradation mechanisms and its recycling. Polímeros: Ciência e Tecnologia, 19(2), 121-132. http://dx.doi.org/10.1590/S0104-14282009000200009.

12 Geyer, R., Jambeck, J. R., & Law, K. L. (2017). Production, use, and fate of all plastics ever made. Science Advances, 3(7), e1700782. http://dx.doi.org/10.1126/sciadv.1700782. PMid:28776036.

13 Araujo, L. M. G., & Morales, A. R. (2018). Compatibilization of recycled polypropylene and recycled poly (ethylene terephthalate) blends with SEBS-g-MA. Polímeros: Ciência e Tecnologia, 28(1), 84-91. http://dx.doi.org/10.1590/0104-1428.03016.

14 Paiva, L. B., Morales, A. R., & Guimarães, T. R. (2006). Propriedades mecânicas de nanocompósitos de polipropileno e montmorilonita organofílica. Polímeros: Ciência e Tecnologia, 16(2), 136-140. http://dx.doi.org/10.1590/S0104-14282006000200014.

15 Komatsu, L. G. H., Oliani, W. L., Lugao, A. B., & Parra, D. F. (2014). Environmental ageing of irradiated polypropylene/montmorillonite nanocomposites obtained in molten state. Radiation Physics and Chemistry, 97, 233-238. http://dx.doi.org/10.1016/j.radphyschem.2013.12.004.

16 Kim, D. H., Fasulo, P. D., Rodgers, W. R., & Paul, D. R. (2007). Structure and properties of polypropylene-based nanocomposites: effect of PP-g-MA to organoclay ratio. Polymer, 48(18), 5308-5323. http://dx.doi.org/10.1016/j.polymer.2007.07.011.

17 Kráčalík, M., Mikešová, J., Puffr, R., Baldrian, J., Thomann, R., & Friedrich, C. (2007). Effect of 3D structures on recycled PET/organoclay nanocomposites. Polymer Bulletin, 58(1), 313-319. http://dx.doi.org/10.1007/s00289-006-0592-5.

18 Kráčalík, M., Studenovský, M., Mikešová, J., Sikora, A., Thomann, R., Friedrich, C., Fortelný, I., & Šimoník, J. (2007). Recycled PET nanocomposites improved by silanization of organoclays. Journal of Applied Polymer Science, 106(2), 926-937. http://dx.doi.org/10.1002/app.26690.

19 Kráčalík, M., Studenovský, M., Mikešová, J., Kovářová, J., Sikora, A., Thomann, R., & Friedrich, C. (2007). Recycled PET-organoclay nanocomposites with enhanced processing properties and thermal stability. Journal of Applied Polymer Science, 106(3), 2092-2100. http://dx.doi.org/10.1002/app.26858.

20 Gurmendi, U., Eguiazabal, J. I., & Nazabal, J. (2007). Structure and properties of nanocomposites with a poly(ethylene terephthalate) matrix. Macromolecular Materials and Engineering, 292(2), 169-175. http://dx.doi.org/10.1002/mame.200600376.

21 Calcagno, C. I. W., Mariani, C. M., Teixeira, S. R., & Mauler, R. S. (2009). Morphology and crystallization behavior of the PP/PET nanocomposites. Journal of Applied Polymer Science, 111(1), 29-36. http://dx.doi.org/10.1002/app.28977.

22 Calcagno, C. I. W., Mariani, C. M., Teixeira, S. R., & Mauler, R. S. (2008). The role of the MMT on the morphology and mechanical properties of the PP/PET blends. Composites Science and Technology, 68(10-11), 2193-2200. http://dx.doi.org/10.1016/j.compscitech.2008.03.012.

23 Entezam, M., Khonakdar, H. A., Yousefi, A. A., Jafari, S. H., Wagenknecht, U., & Heinrich, G. (2013). Dynamic and transient shear start-up flow experiments for analyzing nanoclay localization in PP/PET blends: correlation with microstructure. Macromolecular Materials and Engineering, 298(1), 113-126. http://dx.doi.org/10.1002/mame.201100435.

24 Van Krevelen, D. W., & Nijenhuis, K. T. (2009). Properties of polymers. Their correlation with chemical structure: their numerical estimation and prediction from additive group contributions. Netherlands: Elsevier.

25 Kim, T. K. (2017). Understanding one-way ANOVA using conceptual figures. Korean Journal of Anesthesiology, 70(1), 22-26. http://dx.doi.org/10.4097/kjae.2017.70.1.22. PMid:28184262.

26 Souza, P. M. S., Morales, A. R., Marin-Morales, M. A., & Mei, L. H. I. (2014). Estudo da influência de argilas organofílicas no processo de biodegradação do PLA. Polímeros Ciência e Tecnologia, 24(1), 110-116. http://dx.doi.org/10.4322/polimeros.2014.058.

27 Wunderlich, B. (1990). Thermal analysis. USA: Academic Press, Inc. http://dx.doi.org/10.1016/B978-0-12-765605-2.50006-6.

28 Nagaraj, S. K., Shivanna, S., Subramani, N. K., & Siddaramaiah, H. (2016). Revisiting powder x-ray diffraction technique: a powerful tool to characterize polymers and their composite films. Research, & Reviews. Journal of Materials Science, 4(4), 1-5. http://dx.doi.org/10.4172/2321-6212.1000158.

29 Tanniru, M., Yuan, Q., & Misra, R. D. K. (2006). On significant retention of impact strength in clay–reinforced high-density polyethylene (HDPE) nanocomposites. Polymer, 47(6), 2133-2146. http://dx.doi.org/10.1016/j.polymer.2006.01.063.

30 Liu, N. C., & Baker, W. E. (1992). Reactive polymers for blend compatibilization. Advances in Polymer Technology, 11(4), 249-262. http://dx.doi.org/10.1002/adv.1992.060110403.

31 Orr, C. A., Cernohous, J. J., Guegan, P., Hirao, A., Jeon, H. K., & Macosko, C. W. (2001). Homogeneous reactive coupling of terminally functional polymers. Polymer, 42(19), 8171-8178. http://dx.doi.org/10.1016/S0032-3861(01)00329-9.

32 Chandran, N., Chandran, S., Maria, H. J., & Thomas, S. (2015). Compatibilizing action and localization of clay in a polypropylene/natural rubber (PP/NR) blend. RSC Advances, 5(105), 86265-86273. http://dx.doi.org/10.1039/C5RA14352G.

33 Beuguel, Q., Ville, J., Crepin-Leblond, J., Mederic, P., & Aubry, T. (2017). Influence of clay mineral structure and polyamide polarity on the structural and morphological properties of clay polypropylene/polyamide nanocomposites. Applied Clay Science, 135, 253-259. http://dx.doi.org/10.1016/j.clay.2016.09.034.

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