Mechanical and surface properties of corona‐treated titanium dioxide‐embedded opaque white low‐density/Linear low‐density polyethylene film

Author:

Das Bidhan1,Chakrabarty Debabrata2,Mukherjee Avik2,Guha Chandan3,Bose Saswata3ORCID

Affiliation:

1. Training and Education Department, Kolkata Centre Indian Institute of Packaging Kolkata India

2. Department of Polymer Science and Technology University of Calcutta Kolkata India

3. Chemical Engineering Department Jadavpur University Kolkata India

Abstract

AbstractThis study encompasses the characterization of corona‐treated milky white co‐extruded polyethylene films. The surface energies developed at various applied voltages were investigated by standard wetting (dyne) solutions of binary liquid mixtures. A maximum treatment of 40 dynes/cm was achieved at 3.0 kW of the applied load. Maximum heat seal joint strength of 1.05 kN/m was achieved only when an untreated/untreated surface combination was sealed, while a treated/treated surface combination exhibited the minimum heat seal joint strength of 0.98 kN/m. Standard Scotch tape method was employed for testing peel adhesion. An applied load of more than 3.0 kW shows a decreasing trend in surface energy. The coefficient of friction on the treated surface was also investigated. Aging under different environmental conditions had hardly any impact on the treatment levels within the time period under study. A sufficiently opaque (Opacity—99%) white film at Titanium dioxide (TiO2) loading of 7.5% resulted in a very good barrier film.

Publisher

Wiley

Subject

Materials Chemistry,Polymers and Plastics,General Chemistry,Materials Chemistry,Polymers and Plastics,General Chemistry

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