Publication Type : Journal Article
Publisher : Journal of Reinforced Plastics and Composites
Source : Journal of Reinforced Plastics and Composites, Volume 31, Number 8, p.549-562 (2012)
Keywords : Blend ratios, Micro-fibrils, Microfibrillar blends, Microfibrillar composite, Morphology, Polyethylene terephthalates, Polymer blends, Solvent uptake, Solvents, Sorption, Tensile strength, Thermoplastics, Tortuous path, Uniform diameter
Campus : Coimbatore
School : School of Engineering
Center : Center for Excellence in Advanced Materials and Green Technologies
Department : Chemical, Civil
Verified : Yes
Year : 2012
Abstract : The morphology of the neat blends, microfibrillar blends and the corresponding microfibrillar composites based on low-density polyethylene and polyethylene terephthalate was analyzed. As the polyethylene terephthalate concentration increased, an increase in the diameter of polyethylene terephthalate spheres/fibrils was observed. The fibrils with relatively uniform diameter distribution were obtained in the range of 15-25 wt% polyethylene terephthalate concentration. The tensile properties of the blends and microfibrillar composites increased with polyethylene terephthalate concentration up to an optimum level. The neat blends exhibited inferior tensile properties in comparison with the microfibrillar composites. As the polyethylene terephthalate concentration increased, the solvent uptake reduced. The diffusivity and permeability of the microfibrillar composites were lower than the corresponding blends. The solvent uptake was found to be lowest for the composite with 25 wt% polyethylene terephthalate concentration. The polyethylene terephthalate microfibrils in the microfibrillar composites offered a tortuous path for the diffusion of the solvent. © The Author(s) 2012.
Cite this Research Publication : Dr. Jayanarayanan K., Thomas, Sb, and K. Joseph, “Effect of blend ratio on the mechanical and sorption behaviour of polymer-polymer microfibrillar composites from low-density polyethylene and polyethylene terephthalate”, Journal of Reinforced Plastics and Composites, vol. 31, pp. 549-562, 2012.