The use of an interleaved film for optimising the properties of hot compacted polyethylene single polymer composites

It is shown that the incorporation of interleaved films has major advantages for the production of polyethylene single polymer composites by the process of selective melting (termed hot compaction). The key issue is to choose a compaction temperature which melts the minimum amount of the original or...

Full description

Saved in:
Bibliographic Details
Published in:Polymer (Guilford) 2011-06, Vol.52 (13), p.2891-2898
Main Authors: Hine, P.J., Unwin, A.P., Ward, I.M.
Format: Article
Language:English
Subjects:
Applied sciences
Compacting
Composites
Exact sciences and technology
Fibers
Fibres
Forms of application and semi-finished materials
Hot compaction
Interlayers
melting
Molecular structure
molecular weight
Polyethylene
Polyethylenes
Polymer industry, paints, wood
Polymer matrix composites
Polymer/polymer composites
Strength
Technology of polymers
temperature
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:It is shown that the incorporation of interleaved films has major advantages for the production of polyethylene single polymer composites by the process of selective melting (termed hot compaction). The key issue is to choose a compaction temperature which melts the minimum amount of the original oriented elements whilst achieving acceptable bonding within the compacted structure. Utilising an interleaved film, excellent interlayer peel strengths can be achieved at lower compaction temperatures giving greater retention of the oriented fraction of the original fibres or tapes and a wider processing window. For example, using a very high modulus, ultra-high molecular weight, polyethylene tape, together with an interleaved film, resulted in an in-plane modulus of 25 GPa, an in-plane strength of 500 MPa, and an interlayer strength of >10 N/10 mm. These are amongst the highest values reported for a single polymer composite. Other important factors have been investigated including fabric weave style and whether it is better to use fibres or tapes as the oriented reinforcement. [Display omitted]
ISSN:0032-3861
1873-2291
DOI:10.1016/j.polymer.2011.04.026