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Viscoelastic properties and melt rheology of novel polyamide 6/fluoroelastomer nanostructured thermoplastic vulcanizates

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Abstract

The present article reports viscoelastic properties and melt rheology of novel nanostructured thermoplastic vulcanizates (TPVs) consisting of dispersed nanodimensional fluoroelastomer (FKM) particles into the continuous polyamide (PA6) matrix. The influence of dynamic vulcanization on the above properties of the blends was reported. The storage modulus and loss modulus were plotted against reduced frequency to understand the behavior of nanostructured TPVs. PA6/FKM TPVs showed pseudoplasticity and obeyed cross viscosity model. Insight into how the crosslink density of TPVs affects the rheological response was discussed. Also, a new relationship of zero shear viscosity (η 0) with the crosslink density of TPVs was proposed to gain insight into dynamic vulcanization. It was found that up to a certain amount of curative concentration, η 0 depends upon the crosslink density to a power equal to 3.4 and is roughly proportional to the crosslink density on further increase of curative concentration. van Gurp–Palmen plot of phase angle versus reduced complex modulus indicated the droplet–matrix morphology of the PA6/FKM blends which was further confirmed from field emission scanning electron microscopy and atomic force microscopy studies, where FKM nanoparticles (60–80 nm) were the dispersed phase. Various melt elastic properties of TPVs such as die swell, first normal stress difference, recoverable shear strain, and apparent elasticity were measured and analyzed. TPV extrudates were examined using surface finish and roughness values. TPVs exhibited smoother extrudate surface than reported earlier. Extrudate surface roughness from atomic force microscopy was used to analyze the processing behavior of TPVs.

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References

  1. Costa FR, Dutta NK, Choudhury NR, Bhowmick AK (2008) Thermoplastic elastomers. In: Bhowmick AK (ed) Current topics in elastomers research. Taylor & Francis, Boca Raton, pp 101–164

    Google Scholar 

  2. Coran AY, Patel R (1980) Rubber-thermoplastic compositions. Part I. EPDM-polypropylene thermoplastic vulcanizates. Rubber Chem Technol 53:141–150

    Article  Google Scholar 

  3. Banerjee SS, Bhowmick AK (2015) Dynamic vulcanization of novel nanostructured polyamide 6/fluoroelastomer thermoplastic elastomeric blends with special reference to morphology, physical properties and degree of vulcanization. Polymer 57:105–116

    Article  Google Scholar 

  4. Litvinov VM (2006) EPDM/PP thermoplastic vulcanizates as studied by proton nmr relaxation: phase composition, molecular mobility, network structure in the rubbery phase, and network heterogeneity. Macromolecules 39:8727–8741

    Article  Google Scholar 

  5. Ellul MD, Tsou AH, Hu W (2004) Crosslink densities and phase morphologies in thermoplastic vulcanizates. Polymer 45:3351–3358

    Article  Google Scholar 

  6. Shahbikian S, Carreau PJ, Heuzey MC, Ellul MD, Cheng J, Shirodkar P, Nadella HP (2011) Morphology development of EPDM/PP uncross-linked/dynamically cross-linked blends. Polym Eng Sci 52:309–322

    Article  Google Scholar 

  7. Goettlier LA, Richwine JR, Wille FJ (1982) The rheology and processing of olefin-based thermoplastic vulcanizates. Rubber Chem Technol 55:1448–1463

    Article  Google Scholar 

  8. Wu J, Pan Q, Huang G (2007) Study on the morphology, rheology and surface of dynamically vulcanized chlorinated butyl rubber/polyethylacrylate extrudates: effect of extrusion temperature and times. J Mater Sci 42:4494–4501. doi:10.1007/s10853-006-0396-x

    Article  Google Scholar 

  9. Biemond GJE, Gaymans RJ (2010) Elastic properties of thermoplastic elastomers based on poly(tetramethylene oxide) and monodisperse amide segments. J Mater Sci 45:158–167. doi:10.1007/s10853-009-3911-z

    Article  Google Scholar 

  10. Song N, Zhu L, Yan X, Xu Y, Xu X (2008) Effect of blend composition on the rheology property of polypropylene/poly(ethylene-1-octene) blends. J Mater Sci 43:3218–3222. doi:10.1007/s10853-008-2554-9

    Article  Google Scholar 

  11. Han PK, White JL (1995) Rheological studies of dynamically vulcanized and mechanical blends of polypropylene and ethylene-propylene rubber. Rubber Chem Technol 68:728–738

    Article  Google Scholar 

  12. Anandhan S, De PP, De SK, Swayajith S, Bhowmick AK (2003) Thermorheological studies of novel thermoplastic elastomeric blends of nitrile rubber (NBR) and scrap computer plastics (SCP) based on acrylonitrile–butadiene–styrene terpolymer (ABS). Plast Rubber Compos 32:377–384

    Article  Google Scholar 

  13. Wakita N (1993) Melt elasticity of incompatible blends of poly(buty1ene terephthalate)(PBT) and polyamide 6 (PA6). Polym Eng Sci 33:781–788

    Article  Google Scholar 

  14. Banerjee SS, Bhowmick AK (2013) Novel nanostructured polyamide 6/fluoroelastomer thermoplastic elastomeric blends: influence of interaction and morphology on physical properties. Polymer 54:6561–6571

    Article  Google Scholar 

  15. Banerjee SS, Kumar KD, Bhowmick AK (2015) Distinct melt viscoelastic properties of novel nanostructured and microstructured thermoplastic elastomeric blends from polyamide 6 and fluoroelastomer. Macromol Mater Eng 300:283–290

    Article  Google Scholar 

  16. Treloar LRG (1975) The physics of rubber elasticity, 3rd edn. Clarendon Press, Oxford

    Google Scholar 

  17. Jha A, Bhowmick AK (1998) Influence of dynamic vulcanization and phase interaction on the swelling behavior of the thermoplastic elastomeric blends of nylon-6 and acrylate rubber in various solvents and oil. J Appl Polym Sci 69:2331–2340

    Article  Google Scholar 

  18. Maiti M, Patel J, Naskar K, Bhowmick AK (2006) Influence of various crosslinking systems on the mechanical properties of gas phase EPDM/PP thermoplastic vulcanizates. J Appl Polym Sci 10:5463–5471

    Article  Google Scholar 

  19. Ogunniyi DS (1988) A novel system for crosslinking fluoroelastomers. Rubber Chem Technol 61:735–746

    Article  Google Scholar 

  20. Colby RH, Fetters LJ, Graessley WW (1987) Melt viscosity-molecular weight relationship for linear polymers. Macromolecules 20:2226–2237

    Article  Google Scholar 

  21. Cross MM (1965) Rheology of non-newtonian fluids: a new flow equation for pseudoplastic systems. J Colloid Sci 20:417–437

    Article  Google Scholar 

  22. Nichetti D, Zloczower IM (1998) Viscosity model for polydisperse polymer melts. J Rheol 42:951–969

    Article  Google Scholar 

  23. Carrot C, Mbarek S, Jaziri M, Chalamet Y, Raveyre C, Prochazka F (2007) Immiscible blends of PC and PET, current knowledge and new results: rheological properties. Macromol Mater Eng 292:693–706

    Article  Google Scholar 

  24. Velázquez OD, Hatzikiriakos SG, Sentmanat M (2008) Thermorheological properties of LLDPE/LDPE blends. Rheol Acta 47:19–31

    Article  Google Scholar 

  25. Li R, Yu W, Zhou C (2006) Rheological characteristic of droplet-matrix versus co-continuous morphology. J Macromol Sci Part B Phys 45:889–898

    Article  Google Scholar 

  26. López-Barrón CR, Macosko CW (2012) Rheological and morphological study of cocontinuous polymer blends during coarsening. J Rheol 56:1315–1334

    Article  Google Scholar 

  27. Venerus DC, Kahvand H (1994) Normal stress relaxation in reversing double-step strain flows. J Rheol 38:1297–1315

    Article  Google Scholar 

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Authors and Affiliations

  1. Department of Materials Science and Engineering, Indian Institute of Technology Patna, Patna, 800013, India

    Shib Shankar Banerjee

  2. Rubber Technology Centre, Indian Institute of Technology Kharagpur, Kharagpur, 721302, India

    Anil K. Bhowmick

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  1. Shib Shankar Banerjee
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  2. Anil K. Bhowmick
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Correspondence to Anil K. Bhowmick.

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Banerjee, S.S., Bhowmick, A.K. Viscoelastic properties and melt rheology of novel polyamide 6/fluoroelastomer nanostructured thermoplastic vulcanizates. J Mater Sci 51, 252–261 (2016). https://doi.org/10.1007/s10853-015-9187-6

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  • DOI: https://doi.org/10.1007/s10853-015-9187-6

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