Adhesion Improvement in Polypropylene/Aluminum Laminates

The construction of a practical polypropylene/aluminum (PP/Al) laminate with desirable properties is discussed. A new method of surface modification, utilizing a polypropylene cohexenol copolymer (PPH) is examined. It was found that PP/Al laminates bonded by PPH show a 7- to 10 fold increase in peel...

Full description

Saved in:
Bibliographic Details
Published in:Journal of thermoplastic composite materials 1993-01, Vol.6 (1), p.18-28
Main Authors: Chinsirikul, W., Chung, T.C., Harrison, Ian R.
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The construction of a practical polypropylene/aluminum (PP/Al) laminate with desirable properties is discussed. A new method of surface modification, utilizing a polypropylene cohexenol copolymer (PPH) is examined. It was found that PP/Al laminates bonded by PPH show a 7- to 10 fold increase in peel strength over acid-etched samples. High-modulus, high-strength oriented polypropylene films are also studied. Peel test results and fractographic and wettability studies reveal cohesive failure as the primary mode of failure. Observed improvement in the laminates' tensile strength, modulus and impact properties is thought to be due to both the appreciable increase in the adhesive strength of the PP/Al laminates and enhancement of the PP matrix properties via the orientation process.
ISSN:0892-7057
1530-7980
DOI:10.1177/089270579300600102