Journal article
Manipulating Dispersion and Distribution of Graphene in PLA through Novel Interface Engineering for Improved Conductive Properties
ACS applied materials & interfaces, Vol.6(16), pp.14069-14075
08/27/2014
Handle:
https://hdl.handle.net/2376/101955
PMID: 25014782
Abstract
This study aimed to enhance the conductive properties of PLA nanocomposite by controlling the dispersion and distribution of graphene within the minor phase of the polymer blend. Functionalized graphene (f-GO) was achieved by reacting graphene oxide (GO) with various silanes under the aid of an ionic liquid. Ethylene/n-butyl acrylate/glycidyl methacrylate terpolymer elastomer (EBA-GMA) was introduced as the minor phase to tailor the interface of matrix/graphene through reactive compatibilization. GO particles were predominantly dispersed in PLA in a self-agglomerating pattern, while f-GO was preferentially located in the introduced rubber phase or at the PLA/EBA-GMA interfaces through the formation of the three-dimensional percolated structures, especially for these functionalized graphene with reactive groups. The selective localization of the f-GO also played a crucial role in stabilizing and improving the phase morphology of the PLA blend through reducing the interfacial tension between two phases. The establishment of the percolated network structures in the ternary system was responsible for the improved AC conductivity and better dielectric properties of the resulting nanocomposites.
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Details
- Title
- Manipulating Dispersion and Distribution of Graphene in PLA through Novel Interface Engineering for Improved Conductive Properties
- Creators
- Yu Fu - Washington State UniversityLinshu Liu - U.S. Department of AgricultureJinwen Zhang - Washington State University
- Publication Details
- ACS applied materials & interfaces, Vol.6(16), pp.14069-14075
- Academic Unit
- Composite Materials and Engineering Center
- Publisher
- American Chemical Society
- Identifiers
- 99900546616801842
- Language
- English
- Resource Type
- Journal article