Journal
JOURNAL OF COMPOSITE MATERIALS
Volume 46, Issue 6, Pages 747-752Publisher
SAGE PUBLICATIONS LTD
DOI: 10.1177/0021998311413835
Keywords
Waterborne polyurethane /graphene composites; polyvinylpyrrolidone; electrical conductivity; solution mixture method
Categories
Funding
- Qing Lan Project [2008-04]
- Jiangsu '333' Project [201041]
- priority academic program development of Jiangsu higher education institutions
- Changzhou Science and Technology project [CE20100048]
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Hydrothermal method was used to convert graphene oxide to graphene in water. Polyvinylpyrrolidone was added to improve dispersion of graphene and form a stable graphene solution with a high concentration. This stable graphene solution was used to mix with waterborne polyurethane (WPU) to prepare WPU/graphene composites. The electrical conductivity of WPU was greatly improved with incorporation of graphene, and when the filling amount of graphene is 4.0wt%, the conductivity of the composite reaches 8.30 x 10(-4) S cm(-1), which is a little higher than that of the composite prepared by in situ method.
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