Polymer–filler interactions in sol–gel derived polymer/silica hybrid nanocomposites
作者： Abhijit Bandyopadhyay , Mousumi de Sarkar , Anil K. Bhowmick
DOI: 10.1002/POLB.20541
关键词: Volume fraction 、 Materials science 、 Composite material 、 Sol-gel 、 Natural rubber 、 Dynamic mechanical analysis 、 Dynamic modulus 、 Vinyl alcohol 、 Polymer 、 Acrylic rubber
摘要: The effect of polymer–filler interaction on solvent swelling and dynamic mechanical properties the sol–gel derived acrylic rubber (ACM)/silica, epoxidized natural (ENR)/silica, poly (vinyl alcohol) (PVA)/silica hybrid nanocomposites has been described for first time. Tetraethoxysilane (TEOS) at three different concentrations (10, 30, 50 wt %) was used as precursor in situ silica generation. Equilibrium respective solvents ambient condition showed highest volume fraction polymer swollen gel PVA/silica system least ACM/silica, with ENR/silica recording an intermediate value. Kraus constant (C) also followed a similar trend. In analysis, storage modulus dropped higher strain (>1%), which indicated disengagement segments from filler surfaces. This drop maximum ENR/silica, minimum PVA/silica, both 70 °C. theoretical (ϕ) interpreted help Power law model ΔE′ = a1ϕ, where a1 b1 primarily attachment parameter. Strain dependence loss observed ACM/silica nanocomposites, while almost strain-independent behavior. sharp increase increasing frequency system, that lower (at frequency) systems (in entire spectrum). ϕ a2ϕ proposed sweep mode. © 2005 Wiley Periodicals, Inc. J Polym Sci Part B: Phys 43: 2399–2412,
harvard.edu
sci-hub.se 参考文章(28)
J. E. Mark, S.-J. Pan, Reinforcement of polydimethylsiloxane networks by in‐situ precipitation of silica: A new method for preparation of filled elastomers Die Makromolekulare Chemie, Rapid Communications. ,vol. 3, pp. 681- 685 ,(1982) , 10.1002/MARC.1982.030031006
Kenneth A. Mauritz, Redford Ju, Poly[(ether ether sulfone)-co-(ether sulfone)]/Silicon Oxide Microcomposites Produced via the Sol-Gel Reaction for Tetraethylorthosilicate Chemistry of Materials. ,vol. 6, pp. 2269- 2278 ,(1994) , 10.1021/CM00048A013
Gert Heinrich, Manfred Klüppel, Thomas A. Vilgis, Reinforcement of Elastomers Current Opinion in Solid State & Materials Science. ,vol. 6, pp. 195- 203 ,(2002) , 10.1016/S1359-0286(02)00030-X
G. Havet, A.I. Isayev, A thermodynamic approach to the rheology of highly interactive filler-polymer mixtures. Part II. Comparison with polystyrene/nanosilica mixtures Rheologica Acta. ,vol. 42, pp. 47- 55 ,(2003) , 10.1007/S00397-002-0253-Z
Libor Matějka, Oxana Dukh, Helena Kamišová, Drahomı́ra Hlavatá, Milena Špı́rková, Jiřı́ Brus, Block-copolymer organic–inorganic networks. Structure, morphology and thermomechanical properties Polymer. ,vol. 45, pp. 3267- 3276 ,(2004) , 10.1016/J.POLYMER.2004.03.033
Gerard Kraus, Swelling of filler-reinforced vulcanizates Journal of Applied Polymer Science. ,vol. 7, pp. 861- 871 ,(1963) , 10.1002/APP.1963.070070306
Zhi Hua Huang, Kun Yuan Qiu, The effects of interactions on the properties of acrylic polymers/silica hybrid materials prepared by the in situ sol-gel process Polymer. ,vol. 38, pp. 521- 526 ,(1997) , 10.1016/S0032-3861(96)00561-7
Yen T. Vu, James E. Mark, Ly H. Pham, Martin Engelhardt, Clay nanolayer reinforcement ofcis-1,4-polyisoprene and epoxidized natural rubber Journal of Applied Polymer Science. ,vol. 82, pp. 1391- 1403 ,(2001) , 10.1002/APP.1976
N. Deslandes, V. Bellenger, F. Jaffiol, J. Verdu, Relationship between morphology and solvent interactions of a polyester composite material Composites Part A-applied Science and Manufacturing. ,vol. 29, pp. 1481- 1487 ,(1998) , 10.1016/S1359-835X(98)00103-1
J Berriot, F Martin, H Montes, L Monnerie, P Sotta, Reinforcement of model filled elastomers: characterization of the cross-linking density at the filler–elastomer interface by 1H NMR measurements Polymer. ,vol. 44, pp. 1437- 1447 ,(2003) , 10.1016/S0032-3861(02)00882-0