caa a22 4500 463223675 CHVBK 20180405153220.0 cr unu---uuuuu 170326e20071001xx s 000 0 eng 10.1007/s10853-007-1787-3 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1787-3 Effect of surface modification of nanosilica on crystallization, thermal and mechanical properties of poly(vinylidene fluoride) [Elektronische Daten] [Rui Song, Debin Yang, Linghao He] Composites were prepared by solution blending ploy(vinylidene fluoride) (PVDF) and nanosilica which modified by different organic modifiers. Infrared analysis showed that the crystalline structure of PVDF was changed by the addition of RNS-A (silica with amino terminated group), while similar crystalline structure as pure PVDF was observed for composites with DNS-0 and DNS-2, unmodified silica and alkyl terminated group silica, respectively. With differential scanning calorimeter (DSC) and dynamic mechanic thermal analysis (DMTA) techniques, crystalline structure, thermal, and mechanical properties of the composite films were examined. As the DSC results showed, addition of SiO2 would lead to the increased cooling crystallization temperature (T c), implying that SiO2 nanoparticles could act as nucleating agents, however the degree of crystallinity of PVDF was not elevated significantly. In the complementary modulated DSC curves, multi-melting peaks associated with non-reversing portion were observed and were explained from the viewpoint of melting-recrystallization in the DSC heating scan. In addition, dynamic mechanical properties as well as the thermal stability of the composites are also influenced by SiO2. As manifested by the corresponding DMTA and thermogravimetric analysis (TGA) results, a strong interaction should exist between PVDF and SiO2 nanoparticles. Springer Science+Business Media, LLC, 2007 Song Rui College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, 450003, Zhengzhou, China aut Yang Debin College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, 100039, Beijing, China aut He Linghao College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, 100039, Beijing, China aut Journal of Materials Science Springer US; http://www.springer-ny.com 42/20(2007-10-01), 8408-8417 0022-2461 42:20<8408 2007 42 10853 https://doi.org/10.1007/s10853-007-1787-3 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1787-3 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Song Rui College of Materials and Chemical Engineering, Zhengzhou University of Light Industry, 450003, Zhengzhou, China aut NATIONALLICENCE 700 1- Yang Debin College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, 100039, Beijing, China aut NATIONALLICENCE 700 1- He Linghao College of Chemistry and Chemical Engineering, Graduate University of Chinese Academy of Sciences, 100039, Beijing, China aut NATIONALLICENCE 773 0- Journal of Materials Science Springer US; http://www.springer-ny.com 42/20(2007-10-01), 8408-8417 0022-2461 42:20<8408 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer