Abstract
Owing to the high aspect ratio, the two-dimensional (2D) inorganic nanofillers have attracted extensive interest in the field of polymer reinforcement. In this work, graphitic carbon nitride (g-C3N4) nanosheets were obtained via thermal condensation of melamine and were then ultrasonically exfoliated in water, which was confirmed by atomic force microscopy (AFM) and TEM. Poly(vinyl alcohol) (PVA)/g-C3N4 nanocomposites were achieved by solution casting using water as the solvent. The structure and mechanical performance of PVA/g-C3N4 nanocomposites were studied. It was found that the g-C3N4 nanosheets were well dispersed in the PVA matrix. The introduction of g-C3N4 nanosheets increased the glass transition temperature and crystallinity of the nanocomposites, leading to the improved mechanical performance. Compared with the pure PVA, the PVA/g-C3N4 nanocomposite with 0.50 wt% g-C3N4 nanosheets showed ~70.7% enhancement in tensile strength, up from 51.2 MPa to 87.4 MPa.
Highlights
Polymer nanocomposites are among the most important materials in the academic and industrial fields, and are produced by dispersing into the polymeric matrix with nanofillers that have one or more dimensions at nano-scale
3N4 was confirmed by XRD, FTIR and XPS, as shown nanosheets were observed by melamine
An attempt has been made to evaluate the effect of using g-C3N4 nanosheets on the mechanical performance ofhas polymer
Summary
Polymer nanocomposites are among the most important materials in the academic and industrial fields, and are produced by dispersing into the polymeric matrix with nanofillers that have one or more dimensions at nano-scale. Filler dispersion in a polymer matrix is crucial to obtain high-performance nanocomposites [1,2,3]. Enhancements in the performance of the final nanocomposites depends largely on the morphological aspects of these fillers, such as their sizes and shapes. Zhu et al [20] reported that the wear loss of the composite was reduced by introducing g-C3 N4 as a filler into poly(vinylidene difluoride) (PVDF) matrix. Has been used as fillers incorporated intopolymers some polymers to improve
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
