The effect of temperature and strain rate on the mechanical properties of highly oriented polypropylene tapes and all-polypropylene composites

The creation of highly oriented, co-extruded polypropylene (PP) tapes allows the production of recyclable “all-polypropylene” (all-PP) composites, with a large temperature processing window and a high volume fraction of highly oriented PP (>90%). The wholly thermoplastic nature of these ‘self-rei...

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Bibliographic Details
Published in:Composites science and technology 2007-08, Vol.67 (10), p.2061-2070
Main Authors: Alcock, B., Cabrera, N.O., Barkoula, N.-M., Reynolds, C.T., Govaert, L.E., Peijs, T.
Format: Article
Language:English
Subjects:
A. Polymers
A. Recycling
Applied sciences
B. High-temperature properties
B. Thermomechanical properties
D. Life prediction
Exact sciences and technology
Forms of application and semi-finished materials
Laminates
Polymer industry, paints, wood
Technology of polymers
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Summary:The creation of highly oriented, co-extruded polypropylene (PP) tapes allows the production of recyclable “all-polypropylene” (all-PP) composites, with a large temperature processing window and a high volume fraction of highly oriented PP (>90%). The wholly thermoplastic nature of these ‘self-reinforced’ composites implies that the mechanical performance may vary with temperature. This paper describes the mechanical performance of all-PP composites by measuring the mechanical properties of highly oriented PP tapes and subsequent all-PP composites at a range of temperatures by static and dynamic testing methods. The time–temperature equivalence of all-PP composites is investigated by creating mastercurves of dynamic modulus and tensile strength. A comparison of the performance of these composites with commercial glass fibre reinforced polypropylene composites is included.
ISSN:0266-3538
1879-1050
DOI:10.1016/j.compscitech.2006.11.012