euro-optics-plasma-science-2018-posters

Laser Optics & Photonics and Atomic & Plasma Science 2018

J u l y 1 6 - 1 7 , 2 0 1 8

P r a g u e , C z e c h R e p u b l i c

Page 105

American Journal of Computer Science and Information Technology

ISSN: 2349-3917

E u r o S c i C o n J o i n t E v e n t o n

Laser Optics & Photonics and

Atomic & Plasma Science

he largest field of application for plastics is currently in packaging, as they offer good mechanical properties combined with

low density. A drawback of plastic packaging for food, pharmaceuticals and electronics applications over metals or glass

is often their permeability to oxygen, carbon dioxide, water vapour and aroma. In order to improve this property, nano-scaled

plasma deposited barrier coatings are researched. These are able to form virtually impermeable layer on the substrate and reduce

permeation. Thanks to developments in low-pressure technology, surface functionalization by means of plasma is economically

viable for mass-produced products nowadays, which is demonstrated by numerous examples such as the inner coating of

polyethylene pipes, polypropylene syringes or polyethylene terephthalate bottles, polypropylene jam cups or coffee capsules. For

example, polyethylene terephthalate bottles are coated with a barrier layer immediately after stretch blow molding before they

are filled. Right after injection moulding, polypropylene cups are barrier-coated in batch processes. Functionalization processes

for mass production start with a laboratory reactor in which functionalities are developed on small, mostly two-dimensional

substrates. Subsequent to that, the process must be transferred to complex geometries and finally scaled up to viable sizes

for mass production. Therefore a knowledge-based, systematic process and coating development is required which can be

separated into product, plasma process and system properties, which are linked to each other via surface and coating analysis.

Surface and coating analysis is mandatory for the definition of substrate-based challenges to the plasma process, tailoring the

plasma process to the substrates particularities and testing the product properties. In addition, surface analytical methods are

used to determine the influence of process parameters on coating properties and to achieve the defined target values of surface

functionality. Systematic upscaling of the plasma process represents a decisive step towards mass-produced applications for the

process integration of the developed functionalities.

Process and coating development for PECVD

coated plastics products

Rainer Dahlmann, Montgomery Jaritz, Dennis Kirchheim,

Stefan Wilski and Christian Hopmann

Institute for Plastics Processing (IKV), RWTH Aachen University, Germany

Am J Compt Sci Inform Technol 2018, Volume 6

DOI: 10.21767/2349-3917-C1-003