Rheological and thermal properties of EVA-organoclay systems using an environmentally friendly clay modifiera

modified with a non-ionic and free of ammonium ions modifier (BN-AM), were prepared in a single-screw laboratory extruder and characterized by rheological, morphological and thermal properties. WAXD analysis suggested that the nanocomposites with 1.5 wt% of BN-AM presented an exfoliated structure, while the rheological results showed that the nanocomposites with BN-AM organoclay tended to present a more pronounced shear thinning behavior when compared to EVA and the nanocomposites with the traditional organoclay. The SEM/EDS analysis by using elemental mappings showed good dispersion of the organoclays (BN-AM and BN-CT) in the EVA matrix. Thermogravimetry analysis showed an improvement in thermal stability of EVA when the non-ionic modifier was used instead of the traditional one. In general, it was concluded that the addition of low content of BN-AM organoclay in EVA matrices is a promising option for the production of (2020). Rheological and thermal properties of EVA-organoclay systems using an environmentally friendly clay

[1]  Myungwoong Kim,et al.  X-ray-Based Spectroscopic Techniques for Characterization of Polymer Nanocomposite Materials at a Molecular Level , 2020, Polymers.

[2]  A. Drozdov,et al.  Micromechanical modeling of barrier properties of polymer nanocomposites , 2020 .

[3]  Chrysanthos Maraveas.  Environmental Sustainability of Greenhouse Covering Materials , 2019, Sustainability.

[4]  Y. Ni,et al.  Flame retardant nanocomposites based on 2D layered nanomaterials: a review , 2019, Journal of Materials Science.

[5]  Zepeng Zhang,et al.  Organoclays used as colloidal and rheological additives in oil-based drilling fluids: An overview , 2019, Applied Clay Science.

[6]  A. G. Oliveira,et al.  Composites based on high-density polyethylene, polylactide and calcium carbonate: effect of calcium carbonate nanoparticles as co-compatibilizers , 2019, Polymer Bulletin.

[7]  L. Sýkorová,et al.  Clay/EVA Copolymer Nanocomposite - Processing and Properties , 2019, Lecture Notes in Mechanical Engineering.

[8]  M. Mustapha,et al.  A review of thermoplastic elastomeric nanocomposites for high voltage insulation applications , 2018 .

[9]  A. Sharif,et al.  Surface Modification of Advanced and Polymer Nanocomposites , 2018 .

[10]  Shan Wang,et al.  Structures of nonionic surfactant modified montmorillonites and their enhanced adsorption capacities towards a cationic organic dye , 2017 .

[11]  R. Scaffaro,et al.  A simple method to interpret the rheological behaviour of intercalated polymer nanocomposites , 2016 .

[12]  Yanbin Cui,et al.  Gas barrier properties of polymer/clay nanocomposites , 2015 .

[13]  R. Morita,et al.  Caracterização de Bentonitas Sódicas: Efeito do Tratamento com Surfactante Orgânico Livre de Sal de Amônio , 2015 .

[14]  R. Guégan,et al.  Biopolymer nanocomposites based on poly(hydroxybutyrate-co-hydroxyvalerate) reinforced by a non-ionic organoclay , 2015 .

[15]  J. Kloss,et al.  Characterization of Mechanical and Thermal Properties of Poly(ethylene-co-vinyl acetate) with Differents Bentonites , 2014 .

[16]  A. Marcilla,et al.  Characterisation of montmorillonites simultaneously modified with an organic dye and an ammonium salt at different dye/salt ratios. Properties of these modified montmorillonites EVA nanocomposites , 2014 .

[17]  Jianzhong Ma,et al.  Morphology and mechanical properties of EVA/OMMT nanocomposite foams , 2013 .

[18]  D. García-López,et al.  Mechanical and fire retardant properties of EVA/clay/ATH nanocomposites: effect of functionalization of organoclay nanofillers , 2013, Polymer Bulletin.

[19]  M. Modesti,et al.  Poly(Ethylene-Co-Vinyl Acetate)/Clay Nanocomposites: Effect of Clay Nature and Compatibilising Agents on Morphological Thermal and Mechanical Properties , 2011 .

[20]  I. F. Leite,et al.  Efeito de diferentes tipos de argilas e modificadores orgânicos na morfologia e propriedades térmicas dos nanocompósitos de PET , 2011 .

[21]  J. Bae,et al.  Dispersion and flame retardancy of ethylene vinylacetate/layered silicate nanocomposites using the masterbatch approach for cable insulating material , 2011 .

[22]  L. Irusta,et al.  Oxygen permeability through poly(ethylene- co-vinyl acetate)/clay nanocomposites prepared by microwa , 2011 .

[23]  A. J. Zattera,et al.  Influence of physical interaction between organoclay and poly(ethylene-co-vinyl acetate) matrix and effect of clay content on rheological melt state , 2010 .

[24]  R. Lang,et al.  Ageing characterization of commercial ethylene copolymer greenhouse films by analytical and mechanical methods , 2009 .

[25]  C. Bielawski,et al.  Effect of organoclay purity and degradation on nanocomposite performance, Part 1: Surfactant degradation , 2008 .

[26]  L. Robeson,et al.  Polymer nanotechnology: Nanocomposites , 2008 .

[27]  M. C. Branciforti,et al.  Rheological, mechanical and transport properties of blown films of high density polyethylene nanocomposites , 2008 .

[28]  G. Assche,et al.  The thermal degradation of poly(vinyl acetate) and poly(ethylene-co-vinyl acetate): Part I: Experimental study of the degradation mechanism , 2008 .

[29]  Michael P. Wolcott,et al.  Comparison of polylactide/nano-sized calcium carbonate and polylactide/montmorillonite composites: Reinforcing effects and toughening mechanisms , 2007 .

[30]  Sie Chin Tjong,et al.  STRUCTURAL AND MECHANICAL PROPERTIES OF POLYMER NANOCOMPOSITES , 2006 .

[31]  R. Frost,et al.  Thermal Characterization of Surfactant-Modified Montmorillonites , 2005 .

[32]  Quanbao Zhao,et al.  Effects of different kinds of clay and different vinyl acetate content on the morphology and properties of EVA/clay nanocomposites , 2003 .

[33]  Suprakas Sinha Ray,et al.  POLYMER/LAYERED SILICATE NANOCOMPOSITES: A REVIEW FROM PREPARATION TO PROCESSING , 2003 .

[34]  K. M. Lee,et al.  Rheology of organoclay nanocomposites: Effects of polymer matrix/organoclay compatibility and the gallery distance of organoclay , 2003 .

[35]  C. M. Liauw,et al.  Aspects of the thermal oxidation of ethylene vinyl acetate copolymer , 2000 .

[36]  A.M. Henderson,et al.  Ethylene-vinyl acetate (EVA) copolymers: a general review , 1993, IEEE Electrical Insulation Magazine.

[37]  G. Lagaly.  Interaction of alkylamines with different types of layered compounds , 1986 .