Anisotropic Wetting Behavior on Injection Molded Polypropylene Parts Inspired by Surface Structure of Moss

Martin Boruvka

doi:10.4028/www.scientific.net/AMM.752-753.168

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 752-753Anisotropic Wetting Behavior on Injection Molded...

Anisotropic Wetting Behavior on Injection Molded Polypropylene Parts Inspired by Surface Structure of Moss

Abstract:

During the last years the carmakers interest is focused on polymer manufacturers to develop breakthrough solutions addressing the key drivers of reducing weight and cost. The use of polypropylene (PP) and other thermoplastic olefins is growing because of their low cost and good properties. Unfortunately, some of the same properties that make these plastics attractive to designers, also make them difficult to bond with adhesives or varnish. Non-polar character of PP results in poor surface properties and low wettability. Several methods of surface pretreatments have been used to improve its wettability, but all involves cost extending additional processing. Based on lessons from nature, one of the ways how to increase wettability is surface structuring. Injection mold insert designing and manufacturing process inspired by hydrophilic structure of the moss is presented. Due to cost reducing demands were used conventional processing methods.

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Periodical:

Applied Mechanics and Materials (Volumes 752-753)

Pages:

168-171

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.752-753.168

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Online since:

April 2015

Authors:

Martin Boruvka*

Keywords:

Anisotropy, Bio-Inspired, Injection Molding, Wetting

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