Friction and Wear Behavior of Polymeric Coatings in Cartons

Cartons used for packaging of liquids such as milk or juices are usually coated with barrier layers on their inner and outer walls. These layers are generally polymeric films which act as a two-way barrier; i.e., they insulate the contents from the outside atmosphere and hazardous elements, and at the same time, hinder leakage of the contents. The current report presents a methodology to test the wear resistance of the polymeric layers applied on the walls of the cartons. The polymeric layers need to withstand several steps during their manufacturing process; any damage to these layers can lead to contamination of the contents or even leakage. The tests were carried out on an MCR Tribometer from Anton Paar.

Introduction

Cartons used for packaging of liquids such as milk or juices are usually coated with barrier layers on their inner and outer walls. These layers are generally polymeric films which act as a two-way barrier; i.e., they insulate the contents from the outside atmosphere and hazardous elements, and at the same time, hinder leakage of the contents. The current report presents a methodology to test the wear resistance of the polymeric layers applied on the walls of the cartons. The polymeric layers need to withstand several steps during their manufacturing process; any damage to these layers can lead to contamination of the contents or even leakage.

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