Improvement of morphology, structure, and thermal properties ot electrospun PVA/RSF fiber mats by SiO2
Poly(vinyl alcohol) (PVA)/regenerated silk fibroin (RSF)/silicon dioxide (SiO2) fiber mats were prepared by electrospinning of composite solutions.Fiber morphology was observed under a scanning electron microscope and effects addition of SiO2 was evaluated.Results showed that the obtained fibers exhibited a smooth outer surface,and the continuity was improved because of the different solution conductivity,solution viscosity and compatibility of PVA and RSF by the addition of 1.0 wt.% SiO2.It was found that both Si-O-C linkage and hydrogen bonding interactions were existed among SiO2,PVA,and RSF by FTIR spectroscopy.The addition of SiO2 also resulted in the decrease of crystallinity and increase of thermal properties of electrospun fibers,which were suggested as a result of enhanced compatibility and physical properties of PVA and RSF composite.
electrospinning morphology SiO2 poly (vinyl alcohol) regenerated silk fibroin
Yanhua Liu Lixing Dai
College of Chemistry, Chemical Engineering and Materials Science, Soochow University, 199Renai Road, Suzhou, Jiangsu, 215123, China
国际会议
香港
英文
1017-1020
2012-07-27（万方平台首次上网日期，不代表论文的发表时间）