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- Title
The Preparation, Characterization, Mechanical and Antibacterial Properties of GO-ZnO Nanocomposites with a Poly(L-lactide)-Modified Surface.
- Authors
Yuan, Mingwei; Xiong, Chengdong; Jiang, Lin; Li, Hongli; Yuan, Minglong
- Abstract
Graphene oxide (GO) was employed for the preparation of GO-zinc oxide (ZnO). The hydroxyl group on the surface was exploited to trigger the L-lactide ring-opening polymerization. A composite material with poly(L-lactide) (PLLA) chains grafted to the GO-ZnO surface, GO-ZnO-PLLA, was prepared. The results demonstrated that the employed method allowed one-step, rapid grafting of PLLA to the GO-ZnO surface. The chemical structure of the GO surface was altered by improved dispersion of GO-ZnO in organic solvents, thus enhancing the GO-ZnO dispersion in the PLLA matrix and the interface bonding with PLLA. Subsequently, composite films, GO-ZnO-PLLA and GO-ZnO-PLLA/PLLA, were prepared. The changes in interface properties and mechanical properties were studied. Furthermore, the antibacterial performance of nano-ZnO was investigated.
- Subjects
GRAPHENE oxide; ZINC oxide; HYDROXYL group; POLYMERIZATION; CHEMICAL structure; MECHANICAL behavior of materials
- Publication
Materials (1996-1944), 2018, Vol 11, Issue 2, p323
- ISSN
1996-1944
- Publication type
Article
- DOI
10.3390/ma11020323