Preparation of novel poly(vinyl alcohol)/SiO2 composite nanofiber membranes with mesostructure and their application for removal of Cu2+ from waste water

2010 ◽  
Vol 46 (10) ◽  
pp. 1694 ◽  
Author(s):  
Shengju Wu ◽  
Fengting Li ◽  
Yinan Wu ◽  
Ran Xu ◽  
Guangtao Li
Keyword(s):  
Waste Water ◽  
Vinyl Alcohol ◽  
Poly Vinyl Alcohol ◽  
Composite Nanofiber ◽  
Nanofiber Membranes

Enhanced Mechanical Properties of Poly(Vinyl Alcohol) Nanofibers With Molecular Level Dispersed Graphene

2012 ◽  
Author(s):  
X. Y. Qi ◽  
C. B. Ma ◽  
S. M. L. Nai ◽  
C. K. Cheng ◽  
H. Zhang ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Vinyl Alcohol ◽  
Molecular Level ◽  
Fold Increase ◽  
Poly Vinyl Alcohol ◽  
Composite Nanofiber ◽  
Potential Applications ◽  
Nanofiber Membranes ◽  
Morphology And Mechanical Properties ◽  
Properties Of Composites

Graphene oxide (GO) was incorporated to poly(vinyl alcohol) (PVA) to form GO/PVA composite nanofiber membranes with reinforced mechanical properties via electrospinning technology. The effect of exfoliated degree of GO and dispersion sate in the PVA polymer matrix on the morphology and mechanical properties of composites is studied, revealing that the functional side groups of GO can improve the dispersion and interfacial bonding between the GO and PVA matrix. In addition, it also demonstrates the GO/PVA nanofiber membranes with the significant enhanced mechanical properties (2.28-fold increase in tensile stress) are obtained at a low GO loading (0.3 wt%). Our strategy provides new opportunities for the PVA composite to be involved in other potential applications.

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