Preparation and Characterization of In Situ Nanocomposites of Graphene Nanosheets/Polyurethane

Author:

Lv Guang Lei1,Li Yuan Yuan2,Fei Chen3,Shan Zhi Hao3,Gan Jing3,Zhao Ming3

Affiliation:

1. CNOOC Safety Technology Services Co., Ltd

2. Tianjin University of Science and Technology

3. Beijing Institute of Petrochemical Technology

Abstract

Graphene nanosheets/polyurethane (GNS/PU) was prepared in situ by polymerization technique for the manufacture of PU safety shoes soles. The graphene nanosheets/polyurethane composites were characterized for their mechanical properties, thermal conductivity and abrasion resistance, and comparison is made with those of the neat polyurethane. The microstructural properties of GNS/PU were characterized by SEM. The results show that with the increase of the amount of graphene within the range of weight-percentages analyzed, the tensile strength of the composites gradually increases. The tensile strength of the GNS/PU composites increased to 64.14 MPa with 2 wt% GNS, compared with 55.1 MPa for neat PU. When the graphene sheets reached 2 wt%, the abrasion volume reached 71 mm3. Compared with the pure PU, the wear performance of GNS/PU composites was significantly improved.

Publisher

Trans Tech Publications, Ltd.

Subject

Mechanical Engineering,Mechanics of Materials,General Materials Science

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