In Situ Formation of Poly(ethylene naphthalate) Microfibres in Polyethylene and Polypropylene during Extrusion

Ka Lok Leung; Allan J. Easteal; Debes Bhattacharyya

doi:10.4028/www.scientific.net/KEM.334-335.161

Paper Titles

Fabrication and Characteristics of Carbon Fiber Reinforced C–SiC Dual Matrix Composites
p.145

Electrical Properties of Hot Press Sintered NASICON Ceramics
p.149

The Influence of the End of the Incidence Pole on the K_Id of the Three Point Bending Specimen Tested by the SHPB
p.153

Nonlinear Analysis of the In-Plane Young’s Moduli of Two-Dimensional Cellular Materials with Negative Poisson’s Ratios
p.157

In Situ Formation of Poly(ethylene naphthalate) Microfibres in Polyethylene and Polypropylene during Extrusion
p.161

Preparation of Mesophase Pitch from Coal Tar Pitch for C/C Composites
p.165

Failure Surfaces of Honeycombs with Plateau Borders under In-Plane Biaxial Loads
p.169

Influence of Cr Particle Size on the Microstructure and Electrical Properties of CuW60Cr15 Composites
p.173

Study of Amine-Cured Epoxy Resin/Aluminium Oxide Interfacial Interaction
p.177

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In Situ Formation of Poly(ethylene naphthalate) Microfibres in Polyethylene and Polypropylene during Extrusion

Abstract:

Tensile properties and morphology of poly(ethylene naphthalate)/polyolefin blends and the relationship with the extrusion die size were investigated. Scanning electron micrographs of the blends reveal that the fibre morphology is developed during extrusion through the die. Skin-core morphology has been observed. As die diameter decreases, a droplet-to-fibre transition in morphology increases tensile strength and stiffness. After microfibrillization, up to 100% increase in the tensile stiffness was observed and the tensile strength could increase by one order of magnitude.