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Abstract

Monodisperse nanosized mesoporous particles were synthesized by sol-gel reaction. This study investigated the effects of different types of nanoparticles and amount of nanoparticles on mechanical performance of polypropylene (PP) composites. Four different types of nanoparticles, namely, mesoporous MCM-41 (without template), mesoporous MCM-41 (with template), SBA-15 (without template), and SBA-15 (with template) were considered. PP composites containing (0.5-5 wt%) mesoporous fillers were prepared by compounding. The mechanical properties of the composites determined as a function of the filler loading and the different types of nanoparticles were found to vary with the different interface between different fillers and the matrix. In addition, mechanical tests suggested that SBA-15 (without template) can be regarded as better fillers for PP because of the larger pore size (5.9 nm) and thick silica walls (3.8 nm) as comparable to MCM-41 (without template) and can simultaneously provide PP with strengthening and toughening effects at a rather low filler content. Because the P₁₂₃ (EO₂₀PO₇₀EO₂₀) surfactant of large PO/EO ratio in SBA-15 (with template) possessed relatively higher hydrophobicity than the n-hexadecyltrimethylammonium bromide surfactant in MCM-41 (with template), PP/SBA-15 (with template) composite showed better mechanical properties than PP/MCM-41 (with template) composite.

Keywords

polypropylene mesoporous materials mechanical properties.

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References

Zhao, D.Y. , Feng, J.L. , Huo, Q.S. , Melosh, N. , Fredrickson, G.H. , Chmelka, B.F. and Stucky, G.D. ( 1998). Triblock Copolymer Syntheses of Mesoporous Silica with Periodic 50 to 300 Angstrom Pores, Science, 279(23): 548-552.

Zhao, D.Y. , Huo, Q.S. , Feng, J.L. , Chmelka, B.F. and Stucky, G.D. ( 1998). Nonionic Triblock and Star Diblock Copolymer and Oligomeric Surfactant Syntheses of Highly Ordered, Hydrothermally Stable, Mesoporous Silica Structures, Journal of American Chemistry Society, 120: 6024-6036.

Khalil, K.M.S. (2007). Cerium Modified MCM-41 Nanocomposite Materials via a Nonhydrothermal Direct Method at Room Temperature , Journal of Colloid and Interface Science, 315: 562-568.

Vaishnavi, T.S. , Haridoss, P. and Vijayan, C. (2007). Optical Properties of Zinc Oxide Nanocrystals Embedded in Mesoporous Silica, Materials Letters, 62(11): 1649-1651.

Zhao, L. , Wang, Y.X. , Chen, Z. and Zou, Y.M. ( 2007). Preparation, Characterization, and Optical Properties of Host-Guest Nanocomposite Material SBA-15/AgI, Physica B , 403(11): 1775-1780.

He, J. , Shen, Y.B. , Evans, D.G. and Duan, X. ( 2006). Tailoring the Performance of Polymer Composites via Altering the Properties of the Intrapore Polymers of MCM-48 Nanocomposites as Fillers , Composites Part A, 37: 379-384.

Wang, N. , Li, M.T. and Zhang, J.S. ( 2005). Assembly Polymer Into Mesoporous MCM-41 as Particulate: An Effective Means to Design Polymer-based Nanocomposite, Materials Letters, 59: 2685-2688.

Wang, N. , Shao, Y.W. , Zhang, J. and Li, H.W. ( 2008). Preparation and Characterization of Epoxy Composites Filled with Functionalized Nano-sized MCM-41 Particles, Journal of Materials Science, 43: 3683-3688.

Wang, N. , Shao, Y.W. , Zhang, J. and Li, H.W. ( 2008). Influence of MCM-41 Particle on Mechanical and Morphological Behavior of Polypropylene, Materials Science and Engineering A, 497: 363-368.

10.

Wang, N. , Shi, Z.X. , Zhang, J. and Wang, L. ( 2008). The Influence of Modification of Mesoporous Silica with Polyethylene via In Situ Ziegler-Natta Polymerization on PE/ MCM-41 Nanocomposite, Journal of Composite Materials, 42(12): 1151-1157.

11.

Wang, N. , Zhao, C.L. , Shi, Z.X. , Shao, Y.W. and Li, H.W. ( 2009). Co-incorporation of MMT and MCM-41 Nano Materials Used as Fillers in PP Composite, Materials Science and Engineering B, 157: 44-47.

12.

Wang, N. , Fang, Q.H. , Shao, Y.W. and Zhang, J. ( 2009). Microstructure and Properties of Polypropylene Composites Filled with Co-incorporation of MCM-41 (With Template) and OMMT Nanopartilces Prepared by Melt-Compounding, Materials Science and Engineering A, 512: 32-38.

13.

Liang, Y.C. and Anwander, R. (2004). Synthesis of Pore-enlarged Mesoporous Organosilicas Under Basic Conditions, Microporous and Mesoporous Materials, 72: 153-165.

14.

Rong, M.Z. , Zhang, M.Q. , Zheng, Y.X. , Zeng, H.M. , Walter, R. and Friedrich, K. ( 2001). Structure/Property Relationships of Irradiation Grafted Nano-inorganic Particle Filled Polypropylene Composites, Polymer, 42(7): 167-183.

15.

Xu, R.L. , Zhong, W.H. and Li, J. (2004). Mechanical Property Characterization of a Polymeric Nanocomposite Reinforced by Graphitic Nanofibers with Reactive Linkers, Journal of Composite Materials, 38(18): 1563-1582.

16.

Guo, Z. , Park, S. , Hahn, H.T. , Wei, S. , Moldovan, M. and Karki, A.B. (2007). Giant Magnetoresistance Behavior of an Iron/Carbonized Polyurethane Nanocomposite, Applied Physics Letter, 90: 053111-053114.

Preparation and Characterization of Polypropylene Composites Filled with Different Structured Mesoporous Particles

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