In situ generation of high aspect ratio silica particles in polypropylene
作者： Julien Blanckaert , Véronique Bounor-Legaré , Jannick Duchet-Rumeau , Jean-Charles Majesté , René Fulchiron
DOI: 10.1007/S10971-012-2767-X
关键词:
摘要: Polypropylene/silica microcomposites with high aspect ratio silica fillers were in situ generated into a molten polypropylene (PP) matrix. The synthesis of the inorganic domains are based on hydrolysis-condensation reactions both alkoxysilanes precursors, tetraethoxysilane (TEOS) and Dynasil® 40 (composed TEOS partially condensed residual ethoxy groups) respectively. sol–gel kinetics studied at room temperature an acid hydroalcoholic medium for several conditions pH associated to processing keys factors control deformability droplets. Thanks shearing hot stage coupled optical microscope, needles obtained solution treated 120 min = 3 presence 4 g ethanol then placed between two slices PP stage. deformation droplets observed once material was applied. On contrary, no possible precursors solutions. results transposed microextruder process equipped die drawing line allowed obtain well pronounced elongated shape particles dispersed
springer.com
sci-hub.se 参考文章(27)
E. Dingsøyr, A. A. Christy, Effect of reaction variables on the formation of silica particles by hydrolysis of tetraethyl orthosilicate using sodium hydroxide as a basic catalyst Progress in colloid and polymer science. pp. 67- 73 ,(2000) , 10.1007/3-540-44941-8_11
Joshua U. Otaigbe, Michael D. Barnes, Kazuhiko Fukui, Bobby G. Sumpter, Donald W. Noid, Generation, Characterization, and Modeling of Polymer Micro- and Nano-Particles Advances in Polymer Science. ,vol. 154, pp. 1- 86 ,(2001) , 10.1007/3-540-44484-X_1
C. Jeffrey Brinker, George W. Scherer, Sol-Gel Science: The Physics and Chemistry of Sol-Gel Processing ,(1990)
Sol-Gel Technologies for Glass Producers and Users Kluwer Academic Publishers. ,(2004) , 10.1007/978-0-387-88953-5
On the Instability of a Cylindrical Thread of a Viscous Liquid Surrounded by Another Viscous Fluid Proceedings of The Royal Society A: Mathematical, Physical and Engineering Sciences. ,vol. 150, pp. 322- 337 ,(1935) , 10.1098/RSPA.1935.0104
V Bounor-Legaré, C Angelloz, P Blanc, P Cassagnau, A Michel, A new route for organic–inorganic hybrid material synthesis through reactive processing without solvent Polymer. ,vol. 45, pp. 1485- 1493 ,(2004) , 10.1016/J.POLYMER.2003.12.027
Qizheng Dou, Xiaomin Zhu, Karin Peter, Dan E. Demco, Martin Möller, Claudiu Melian, Preparation of polypropylene/silica composites by in-situ sol–gel processing using hyperbranched polyethoxysiloxane Journal of Sol-Gel Science and Technology. ,vol. 48, pp. 51- 60 ,(2008) , 10.1007/S10971-008-1735-Y
Bou-Huot Phe, Véronique Bounor-Legare, Laurent David, Alain Michel, Control of the Morphology of Organic-Inorganic Hybrid Materials Elaborated by Reactive Processing Without Solvent Journal of Sol-Gel Science and Technology. ,vol. 31, pp. 47- 50 ,(2004) , 10.1023/B:JSST.0000047958.76314.A3
Donghai Sun, Rui Zhang, Zhimin Liu, Ying Huang, Yong Wang, Jun He, Buxing Han, Guanying Yang, Polypropylene/Silica Nanocomposites Prepared by in-Situ Sol−Gel Reaction with the Aid of CO2 Macromolecules. ,vol. 38, pp. 5617- 5624 ,(2005) , 10.1021/MA047314H