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  Study of thermal stability of (3-aminopropyl) trimethoxy silane-grafted titanate nanotubes for application as nanofillers in polymers

Plodinec, M., Gajović, A., Iveković, D., Tomašić, N., Zimmermann, B., Macan, J., et al. (2014). Study of thermal stability of (3-aminopropyl) trimethoxy silane-grafted titanate nanotubes for application as nanofillers in polymers. Nanotechnology, 25(43): 435601. doi:10.1088/0957-4484/25/43/435601.

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Plodinec, Milivoj1, Author
Gajović, Andreja1, Author
Iveković, Damir2, Author
Tomašić, Nenad3, Author
Zimmermann, Boris4, Author
Macan, Jelena5, Author
Haramina, Tatjana6, Author
Su, Dang Sheng7, 8, Author           
Willinger, Marc Georg7, Author           
Affiliations:
1Division of Materials Physics, Ruđer Bošković Institute, Zagreb, Bijenička 54, HR-10000 Zagreb, Croatia, ou_persistent22              
2Laboratory for General and Inorganic Chemistry and Electroanalysis, Faculty of Food Technology and Biotechnology, University of Zagreb, Pierottijeva 6, HR-10000 Zagreb, Croatia, ou_persistent22              
3Institute of Mineralogy and Petrography, Faculty of Science, University of Zagreb, Horvatovac 102, HR-10000 Zagreb, Croatia , ou_persistent22              
4Department of Mathematical Sciences and Technology, Faculty of Environmental Science and Technology, Norwegian University of Life Sciences, Drøbakveien 31, 1432 Ås, Norway , ou_persistent22              
5Department of Physical Chemistry, Faculty of Chemical Engineering and Technology, University of Zagreb, Marulićev trg 19, HR-10000 Zagreb, Croatia , ou_persistent22              
6Department of Materials, Faculty of Mechanical Engineering and Naval Architecture, University of Zagreb, Ivana Lučića, HR-10002 Zagreb, Croatia , ou_persistent22              
7Inorganic Chemistry, Fritz Haber Institute, Max Planck Society, ou_24023              
8Institute of Metal Research, Chinese Academy of Science, 72 Wenhua Road, Shenyang, People's Republic of China, ou_persistent22              

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 Abstract: Protonated titanate nanotubes (TiNT-H) were surface-modified with (3-aminopropyl)trimethoxy silane (APTMS) by a novel method suitable for the syntheses of large amounts of materials at a low cost. The usage of prepared nanotubes for polymer reinforcement was studied. Since the thermal stability of the nanofiller was important to preserve its functional properties, its stability was studied by in situ high-temperature measurements. The most thermally stable nanotubes were silanized for 20 min and used for the preparation of epoxy-based nanocomposites. The nanofiller formed smaller (a few hundred nm) and larger (a few μm) aggregates in the polymer matrix, and the amount of aggregates increased as the nanofiller content increased. The APTMS-modified titanate nanotubes bonded well with the epoxy matrix since amine groups on the TiNT's surface can react with an epoxy group to form covalent bonds between the matrix and the nanofiller. A very small addition (0.19–1.52 wt%) of the nanotubes significantly increased the glass transition temperature and the modulus in the rubbery state of the epoxy-based polymer. Smaller nanofiller content leads to a larger increase in these parameters and therefore better dynamic mechanical properties due to the smaller amount of large aggregates. APTMS-modified titanate nanotubes have proven to be a promising nanofiller in epoxy-based nanocomposites.

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Language(s): eng - English
 Dates: 2014-03-112014-08-192014-10-072014-10-31
 Publication Status: Issued
 Pages: 13
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Identifiers: DOI: 10.1088/0957-4484/25/43/435601
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Title: Nanotechnology
Source Genre: Journal
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Publ. Info: Bristol, UK : IOP Pub.
Pages: - Volume / Issue: 25 (43) Sequence Number: 435601 Start / End Page: - Identifier: ISSN: 0957-4484
CoNE: https://pure.mpg.de/cone/journals/resource/954925577042