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Full Record for Micrograph 555

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Micrograph no
555
Brief description
Banded spherulites in a blend of polyethtylenes
Keywords
alignment, blend Link to MATTER Glossary entry for blend, polyethylene (PE), polymer Link to MATTER Glossary entry for polymer, quenching Link to MATTER Glossary entry for quenching, sheaf, spherulite Link to MATTER Glossary entry for spherulite
Categories
Polymer
System
Polyethylene (PE)
Composition
LPE:BPE 1:3
Standard codes
Reaction
Processing
Blend (1:3) of linear and lightly branched polyethylenes. The blend was quenched from 163 degrees C
Applications
Polymer blends are commercially important materials. Blending very similar polymers can produce materials with improved properties.
Sample preparation
Technique
Transmission electron microscopy (TEM)
Length bar
200 nm
Further information
A replica of a 1:3 blend of linear with lightly branched (BPE has 26 branched per 1000 backbone carbon atoms) polyethylenes after quenching from a mixed melt. The lamellae are of a single type, all of the same thickness. In this case the lamellae are arranged in the familiar banded spherulites.
Contributor
Dr P J Barham
Organisation
Polymer Physics Group, Bristol University
Date
03/10/02
Licence for re-use
Attribution-Non-Commercial-Share Alike 2.0 UK: England & Wales
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