Type

Journal Article

Authors

Alan P Bell
Peter May
Sebastian Barwich
Umar Khan
Oana M Istrate
Jonathan Coleman
Shaobo Xie

Subjects

Geology

Topics
boron nitride solvent size pet exfoliated nanosheets oxygen reductions higher nanosheets composites mix liquid exfoliated boron nitride nanosheets oxygen permeability

Boron nitride nanosheets as barrier enhancing fillers in melt processed composites (2015)

Abstract In this work we have used melt-processing to mix liquid-exfoliated boron–nitride nanosheets with PET to produce composites for gas barrier applications. Sonication of h-BN powder, followed by centrifugation-based size-selection, was used to prepare suspensions of nanosheets with aspect ratio >1000. The solvent was removed to give a weakly aggregated powder which could easily be mixed into PET, giving a composite containing well-dispersed nanosheets. These composites showed very good barrier performance with oxygen permeability reductions of 42% by adding just 0.017 vol% nanosheets. At low loading levels the composites were almost completely transparent. At higher loading levels, while some haze was introduced, the permeability fell by [similar]70% on addition of 3 vol% nanosheets.
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Full list of authors on original publication

Alan P Bell, Peter May, Sebastian Barwich, Umar Khan, Oana M Istrate, Jonathan Coleman, Shaobo Xie

Experts in our system

1
Alan P Bell
Trinity College Dublin
Total Publications: 17
 
2
Peter May
Trinity College Dublin
Total Publications: 27
 
3
Sebastian Barwich
Trinity College Dublin
Total Publications: 5
 
4
Umar Khan
Trinity College Dublin
Total Publications: 37
 
5
Jonathan Coleman
Trinity College Dublin
Total Publications: 217