TY - JOUR
T1 - Graphene Platelets and Their Polymer Composites: Fabrication, Structure, Properties, and Applications
AU - Shi, Ge
AU - Araby, Sherif
AU - Gibson, Christopher
AU - Meng, Qingshi
AU - Zhu, Shenmin
AU - Ma, Jun
PY - 2018/5/9
Y1 - 2018/5/9
N2 - Graphene oxide is extensively compounded with polymers toward a wide variety of applications. Less studied are few-layer or multi-layer highly crystalline graphene, both of which are herein named as graphene platelets. This article aims to provide the most recent advancements of graphene platelets and their polymer composites. A first focus lies on cost-effective fabrication strategies of graphene platelets – intercalation and exfoliation – which work in a relative mass scale, e.g., 5.3 g h −1 . As no heavy oxidization is involved, the platelets have high crystalline integrity, e.g., C:O ratio over 8.0, with thicknesses 2–4 nm and lateral dimension up to a few micrometers. Through carefully selecting the solvent for dispersion and the molecules for surface modification, graphene platelets can be liquid-processable, enabling them to be printed, coated, or compounded with various polymers. A purpose-designed experiment is undertaken to unravel the effect of reasonable ultrasonication time on the platelet thickness. Typical polymer/graphene platelet composites are critically examined for their preparation, structure, and applications such as thermal management and flexible/stretchable electronic devices. Perspectives on the limitations, current challenges, and future prospects for graphene platelets and their polymer composites are provided.
AB - Graphene oxide is extensively compounded with polymers toward a wide variety of applications. Less studied are few-layer or multi-layer highly crystalline graphene, both of which are herein named as graphene platelets. This article aims to provide the most recent advancements of graphene platelets and their polymer composites. A first focus lies on cost-effective fabrication strategies of graphene platelets – intercalation and exfoliation – which work in a relative mass scale, e.g., 5.3 g h −1 . As no heavy oxidization is involved, the platelets have high crystalline integrity, e.g., C:O ratio over 8.0, with thicknesses 2–4 nm and lateral dimension up to a few micrometers. Through carefully selecting the solvent for dispersion and the molecules for surface modification, graphene platelets can be liquid-processable, enabling them to be printed, coated, or compounded with various polymers. A purpose-designed experiment is undertaken to unravel the effect of reasonable ultrasonication time on the platelet thickness. Typical polymer/graphene platelet composites are critically examined for their preparation, structure, and applications such as thermal management and flexible/stretchable electronic devices. Perspectives on the limitations, current challenges, and future prospects for graphene platelets and their polymer composites are provided.
KW - dispersion
KW - exfoliation
KW - graphene
KW - intercalation
KW - polymer composites
UR - http://www.scopus.com/inward/record.url?scp=85044257022&partnerID=8YFLogxK
UR - http://purl.org/au-research/grants/arc/LP140100605
U2 - 10.1002/adfm.201706705
DO - 10.1002/adfm.201706705
M3 - Review article
SN - 1616-3028
VL - 28
JO - Advanced Functional Materials
JF - Advanced Functional Materials
IS - 19
M1 - 1706705
ER -