Evolution of morphology and mechanical properties of PA6/AES blends compatibilized with EPDM-MA
DOI:
https://doi.org/10.33448/rsd-v10i10.18791Keywords:
Polyamide 6; AES; Toughening; Compatibility; Mechanical properties.Abstract
In this work, polyamide 6 (PA6) was toughened with the terpolymer of acrylonitrile-EPDM-styrene (AES), using ethylene-propylene-diene grafted with maleic anhydride (EPDM-MA), as a compatibilizing agent. The blends were prepared in a co-rotational twin-screw extruder and subsequently injection molded. The properties of impact strength, tensile strength and morphology were evaluated. The results indicated expressive increases in the impact strength of the PA6/AES/EPDM-MA blends, compared to the neat PA6. However, the elastic modulus and tensile strength suffered decreases, due to the increased flexibility of the developed blends. The PA6/AES blend compatibilized with 15% of EPDM-MA presented itself as a supertough and ductile material at room temperature. The images obtained by scanning electron microscopy (SEM) indicated that the increase in the EPDM-MA compatibilizer content favored the presence of more refined and well-adhered particles in the PA6 matrix, thus stabilizing the blend's morphology. In general, the PA6/AES/EPDM-MA blend formulation (60/25/15%) showed potential for high-performance application, with prospects for the production of parts to supply the automotive and electronics industry market.
References
Araújo, E. M., Júnior, E. H., & Carvalho, A. J. F. (2003). Compatibilização de Blendas de Poliamida 6/ABS usando os Copolímeros Acrílicos Reativos MMA-GMA e MMA-MA. Parte 1: Comportamento Reológico e Propriedades Mecânicas das Blendas. Polímeros: Ciência e Tecnologia, 13(3), 205-211, 2003.
Bassani, A., Júnior, E. H., Pessan, L. A., Machado, A. V. & Covas, J. (2005). A evolução da morfologia de fases de blendas PA6/AES em extrusora de dupla rosca e moldagem por injeção. Polímeros. Ciência e Tecnologia, 15(3), 176-185.
Bassani, A. Pessan, L. A. & Júnior, E. H (2002). Propriedades mecânicas de blendas de nylon-6/ acrilonitrila-EPDM-estireno (AES) compatibilizadas com copolímero acrílico reativo (MMA-MA). Polímeros. Ciência e Tecnologia, 12(2), 102-108.
Bassani, A. Pessan, L. A. & Júnior, E. H. (2000). Influência da composição e condições de processamento sobre o comportamento mecânico de blendas poliméricas de Nylon-6/AES. In: Congresso Brasileiro de Engenharia e Ciência dos Materiais (CBCIMAT).
Bezerra, E. B., Leite, A. M. D. & Melo T. J. A. (2014). Preparation and characterization of membranes obtained from polymer blends of polyamide 6. Polímeros: Ciência e Tecnologia, 24(3), 381-387.
Bo, J., Feipeng, C., Xianzhong, Q., Bo, W., Guilin, J. & Jinhua, G. (2021). The influence of extrusion process on micromorphology of PA 6/POE/POE-g-MA ternary blends: A quantitative analysis. Journal of Elastomers & Plastics, 53(2), 110-122.
Carvalho, F. P. d., Gonçalves, M. d. C., & Felisberti, M. I. (2010). PMMA-AES Blends Prepared by in situ Polymerization. Macromolecular Symposia, 296(1), 596-608.
Castro, L. D. C., Oliveira, A. D., Altstadt, V. & Pessan, L. A. (2016). Effects of mixing protocol on morphology and properties of PA6/ABS blends compatibilized with MMA-MA. Journal of Applied Polymer Science, 133(27), 43612.
Essabir, H., El Mechtali, F. Z., Nekhlaoui, S., Raji, M., Bensalah, M. O., Rodrigue, D. & Qaiss, A. (2020). Compatibilization of PA6/ABS blend by SEBS-g-MA: morphological, mechanical, thermal, and rheological properties. The International Journal of Advanced Manufacturing Technology, 110(3-4), 1095-1111.
Fernandes, L. L., Freitas, C. A., Demarquette, N. R. & Fechine, G. J. M. (2012). Estudo do efeito do tipo de polipropileno na fotodegradação da blenda polipropileno/poliestireno de alto impacto. Polímeros: Ciência e Tecnologia, 22(1), 61-68.
Garcia, F. & Lourdes, M. (1994). Sintesis y caracterizacion estructural de nuevas poliamidas com unidades monometiléncias: aplicaciones potenciales en el campo de la biomedicina. Tese Doutorado. Universidade Politécnica de Catalunya.
Ghidoni, D., Fasulo, G. C., Cecchele, D., Merlotti, M. & Sterzi, G., (1993). A study on compatibilization of AES/PA6 blends. Journal of Materials Science, 28(15), 4119-4128.
Hage, E. & Pessan, L. A. (2001). Aperfeiçoamento em Tecnologia de plásticos. Apostila Módulo 7: Blendas Poliméricas. Universidade Federal de São Carlos, p.142.
He, R., Zhan, X., Zhang, Q. & Chen, F. (2017). Toughening of polyamide-6 with little loss in modulus by block copolymer containing poly(styrene-alt-maleic acid) segment. Journal of Applied Polymer Science, 134(27), 44849.
La Mantia, F. P., Morreale, M., Botta, L., Mistretta, M. C., Ceraulo & M., Scaffaro, R. (2017). Degradation of polymer blends: A brief review. Polymer Degradation and Stability, 145(11), 79-92.
Lipatov, Y.S. & Nesterov, A. E. (1998). Thermodynamics of Polymer Blends. Technomic Publishing, 1(1), 450.
Luna, C. B. B., Silva, D. F. & Araújo, E. M. (2015a). Estudo do comportamento de blendas de poliamida 6/resíduo de borracha da indústria de calçados. Revista Univap, 20(36), 98-110.
Luna, C. B. B., Silva, D. F., Araújo, E. M., Mélo, T. J. A., Oliveira, A. D. (2015b). Estudo do comportamento mecânico, termomecânico e morfológico de misturas de poliestireno/composto de borracha reciclada (SBR). Matéria (Rio J.), 20 (2), 322-334.
Luna, C. B. B., Ferreira, E. S. B., Siqueira, D. D., Silva, W. A., Araújo, E. M., Wellen, R. M. R. (2019). Tailoring performance of PP/HIPS/SEBS through blending design. Materials Research Express, 6(11), 115321.
Luna, C. B. B., Siqueira, D. D., Ferreira, E. S. B., Silva, W. A., Nogueira, J. A. S. & Araújo, E. M. (2020a). From disposal to technological potential: reuse of polypropylene waste from industrial containers as a polystyrene impact modifier. Sustainability, 12(13), 5272.
Luna, C. B. B., Siqueira, D. D., Ferreira, E. S. B., Araújo, E. M. & Wellen, R. M. R. (2020b). Reactive compatibilization as a proper tool to improve PA6 toughness. Materials Research Express, 6(12), 125367.
Luna, C. B. B., Siqueira, D. D., Ferreira, E. S. B., Araújo, E. M. & Wellen, R. M. R. (2021). Reactive processing of PA6/EPDM-MA blends as modifier for application and development of high-performance polypropylene. https://doi.org/10.1002/vnl.21846.
Majumdar, B., Keskkula, H., & Paul, D. R. (1994). Effect of the nature of the polyamide on the properties and morphology of compatibilized nylon/acrylonitrile-butadiene-styrene blends. Polymer, 35, 5468-5477.
Muthuraj, R., Misra, M. & Mohanty, A. K. (2018). Biodegradable compatibilized polymer blends for packaging applications: A literature review. Journal of Applied Polymer Science, 135(24), 45726.
Nogueira, J. A. S., Luna, C. B. B., Siqueira, D. D., Filho, E. A. S. & Araújo, E. M. (2021). Investigação do desempenho de blendas PA6/HIPS compatibilizadas com SEBS-MA. Efeito do teor do compatibilizante nas propriedades mecânicas, termomecânicas, reometria de torque e na morfologia. Research, Society and Development, 10(8), e58510817649.
Oliveira, A. D. D., Larocca, N. M., & Pessan, L. A. (2011). Efeito da Sequência de Mistura nas Propriedades de Blendas PA6/ABS Compatibilizadas com o Copolímero SMA. Polímeros, 21, 27-33.
Oliveira, A. D. (2014). Desenvolvimento e caracterização de nanocompósitos de blendas de pa6/aes compatibilizados com copolímero acrílico. Tese Doutorado. Universidade Federal de São Carlos.
Oliveira, A. D., Castro, L. D. C., Beatrice, C. A. G., Lucas, A. A., Pessan, L. A. (2017). Effect of Maleic Anhydride Content in Properties of PA6/AES Blends Compatibilized with MMA-MA. Materials Research, 20(6): 1630-1637.
Paul, D. R. & Barlow, J. W. (1980). Polymer Blends. Journal of Macromolecular Science, Part C, 18(1), 109-168.
Silva, D. F., Luna, C. B. B., Araújo, E. M. & Silva, A. L. (2016). Blendas poliméricas: conceitos, obtenção e aplicações. Revista de engenharia e tecnologia, 8(1), 58-77.
Silva, D, F., Araújo, E. M. & Melo, T. J. A. (2013). Development of Polyamide 6/Compound by Recycled Rubber Blends Using Graphitized Polyethylene or Polypropylene with Maleic Anhydride as Compatibilizer Agent. Journal of Aerospace Technology and Management, 5(2), 231-240.
Sridhar, A., & Doddipatla, P. (2019). Influence of PP content on mechanical properties, water absorption, and morphology in PA6/PP blend. Journal of Applied Polymer Science, 136(25).
Turchet, R. & Felizbert M. I. (2006) Caraterização composicional do AES - um copolímero de enxertia de poli(estireno-co-acrilonitrila) em poli(etileno-co-propileno-co-dieno). Polímeros: Ciência e Tecnologia, 16(2), 157-164.
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Copyright (c) 2021 Pamela Thainara Vieira da Silva; Carlos Bruno Barreto Luna; Eduardo da Silva Barbosa Ferreira; Edson Antônio dos Santos Filho; Edcleide Maria Araújo
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