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Surface Modification of a Polyurethane Film by Low Pressure Nitrogen Plasma for Improved Adhesion to Polyethylene Foam for Automotive Industry Laminates
Author(s) -
Sanchis María R.,
Calvo Oscar,
Fenollar Octavio,
Garcia David,
Balart Rafael
Publication year - 2007
Publication title -
plasma processes and polymers
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.644
H-Index - 74
eISSN - 1612-8869
pISSN - 1612-8850
DOI - 10.1002/ppap.200732411
Subject(s) - materials science , contact angle , wetting , composite material , polyolefin , polyurethane , adhesion , surface roughness , surface modification , x ray photoelectron spectroscopy , polyethylene , plasma , chemical engineering , layer (electronics) , engineering , physics , quantum mechanics
A low pressure glow discharge nitrogen plasma has been used to modify wettability of a polyurethane film and, consequently, improve adhesion properties to polyolefin foam in order to obtain technical laminates for uses in automotive industry. A significant increase in surface wettability is achieved after the plasma treatment as observed by contact angle measurements. Surface changes have been studied by X‐ray photoelectron spectroscopy (insertion of polar groups) and atomic force microscopy (changes in surface roughness and topography). Laminates based on plasma‐treated polyurethane film and polyolefin foam show a considerable increase in the T‐peel strength of the adhesion joint; furthermore we can observe a slight ageing process under aggressive conditions (high temperature and relative humidity).