Layered polymer nanocomposite

Examples of filled polymer compositions are discussed, where the role of the preparation method has been clearly identified in relation to compound structure and end properties. Particular attention is also given to recent developments in the field of natural fibre-filled composites, supercritical fluid assisted processing of filled polymers, re-use of thermoset recyclate fillers and silicate layer polymer nanocomposites. [Pg.241]

J.A. Lander, Structure Development in Silicate-Layered Polymer Nanocomposites, Brunei University, Uxbridge, UK, 2002. [PhD Thesis]. [Pg.261]

Paul P, Amit KK, Ellen MA, Anthony MW, Bong SS, Jiadi X, Himabindu N, Benjamin GP, Joeig L, Ayyalusamy R, Nicholas AK (2007) Ultrastrong and stiff layered polymer nanocomposites. Science 318(5847) 80-83... [Pg.206]

A layered particle-reinforced bionanocomposite, also known as a layered polymer nanocomposite (LPN), can be classified into three subcategories depending on how the particles are dispersed in the matrix. Intercalated nanocomposites are produced when polymer chains are intercalated between sheets of the layered nanoparticles, whereas exfoliated nanocomposites are obtained when there is separation of individual layers, and flocculated or phase-separated nanocomposites are produced when there is no separation between the layers due to particle-particle interactions. This last class of composites is often named microcomposites as the individual laminas do not separate, thus acting as microparticles dispersed in the polymeric matrix. Their mechanical and physical properties are poorer than exfoliated and intercalated nanocomposites [17, 20, 21, 36, 37]. Figure 11.1 shows a schematic drawing of the structure of layered nanocomposites. [Pg.363]

Park K, Park E-J, Chun IK et al (201 lb) Bioavailability and toxicokinetics of citrate-coated silver nanoparticles in rats. Arch Pharmacol Res 34(1) 153-158 Piao Ml, Kang KA, Lee IK et al (2011) Silver nanoparticles induce oxidative cell damage in human liver cells through inhibition of reduced glutathione and induction of mitoehondria-involved apoptosis. Toxicol Lett 201(1) 92-100 Podsiadlo P, Kaushik AK, Arruda EM et al (2007) Ultrastrong and stiff layered polymer nanocomposites. Science 318(5847) 80-83... [Pg.122]

Giannelis, E.P. 1996. Polymer layered silicate nanocomposites. Advanced Materials 8 29-35. [Pg.37]

Giannelis, E.P. 1998. Polymer- layered silicate nanocomposites synthesis, properties and applications. Applied Organometallic Chemistry 12 675-680. [Pg.37]

Homminga, D., Goderis, B., Hoffman, S., Reynaers, H. and Groeninckx, G. 2005. Influence of shear flow on the preparation of polymer layered silicate nanocomposites. Polymer 46 9941-9954. [Pg.38]

Ray, S.S. and Bousmina, M. 2005. Biodegradable polymers and their layered silicate nanocomposites In greening the 21 century materials world. Progress in Materials Science 50 962-1079. [Pg.39]

Ray, S.S. and Okamoto, M. 2003. Polymer/layered silicate nanocomposite a review from preparation to processing. Progress in Polymer Science 28 1539-1641. [Pg.39]

Krishnamoorti, R., Vaia, R.A. and Giannelis, E. (1996) Structure and dynamics of polymer-layered silicate nanocomposites. Chemistry of Materials, 8, 1728-1734. [Pg.266]

Since the possibility of direct melt intercalation was first demonstrated [11], melt intercalation has become a method of preparation of the intercalated polymer/ layered silicate nanocomposites (PLSNCs). This process involves annealing, statically or under shear, a mixture of the polymer and organically modified layered fillers (OMLFs) above the softening point of the polymer. During annealing, the polymer chains diffused from the bulk polymer melt into the nano-galleries between the layered fillers. [Pg.272]

Okamoto, M. (2003) Polymer/Layered Silicate Nanocomposites , Rapra Review Report No 163, 166 pp Rapra Technology Ltd., London. [Pg.310]

Okamoto, M. (2006) Recent advances in polymer/layered silicate nanocomposites an overview from science to technology. Materials Science and Technology, 22 (7), 756-779. [Pg.310]

Ahmadi SJ, Huang YD, Li W (2004) Synthetic routes, properties and future applications of polymer-layered silicate nanocomposites. J Mater Sci 39 1919-1925... [Pg.168]

Laird DA, Barriuso E, Dowdy RH, Koskinen WC (1992) Adsorption of atrazine on smectites. Soil Sci Soc Am J 56 62-67 LeBaron PC, Wang Z, Pinnavaia TJ (1999) Polymer-layered silicate nanocomposites an overview. Appl Clay Sci 15 11-29 Lee J-F, Crum JR, Boyd SA (1989) Enhanced retention of organic contaminants by soil exchanged with organic cations. Environ Sci Technol 23 1365-1372 Lee J-F, Mortland MM, Boyd SA, Chiou CT (1989a) Shape-selective adsorption of aromatic molecules from water by tetramethylammonium-smectite. J Chem Soc Faraday Trans I 8 2953-2962... [Pg.171]

Analysis of Thermoset Materials, Precursors and Products, Martin J. Forrest, Rapra Technology Ltd. Polymer/Layered Silicate Nanocomposites, Masami Okamoto, Toyota Technological Institute. [Pg.129]

M. Alexandre, P. Dubois, Polymer-layered silicate nanocomposites Preparation, properties and uses of a new class of materials, Materials Science and Engineering, vol. 28, pp. 1-63, 2000. [Pg.114]

P. C. LeBaron, Z. Wang, T. J. Pinnavaia, Polymer-layered silicate nanocomposites An overview, Applied Clay Science, vol. 15, pp. 11-29,1999. [Pg.114]

In terms of reinforcement, hydrocalumite/polymer nanocomposites may also be considered as promising in the field of cement-related materials. The so-called macro-defect-free (MDF) cements are based on the filHng by polymer of the macroscopic voids responsible for the breakdown of cement. The hydrocalumite phase is formed during the hydration of cement and is known to readily incorporate polymers between its layers [71-75]. [Pg.154]

M. Alexandre, Ph. Dubois, Polymer-layered silieate nanocomposites preparation,... [Pg.406]

Davis RD, Bur AJ, McBearty M et al. (2004) Dielectric spectroscopy during extrusion processing of polymer nanocomposites a high-throughput processing/characterization method to measure layered silicate content and exfoliation. Polymer 45 6487-6493... [Pg.144]

Gilman JW, Davis RD, BeUayer S et al. (2005) Use of optical probes and laser scanning con-focal fluorescence microscopy for high-throughput characterization of dispersion in polymer layered silicate nanocomposites. PMSE Prepr 92 168-169... [Pg.144]

Alexandre, M., Dubois, P. (2000). Polymer-layered silieate nanocomposites preparation, properties and uses of a new elass of materials. Material Science and Engineering, 28, 1-11. [Pg.441]

Pantoustier, N., Alexandre, M., Degee, P, Calberg, C., Jerome, R., Henrist, C., et al. (2001). Poly(3-caprolactone) layered silicate nanocomposites effect of clay surface modifiers on the melt intercalation process. e-Polymer, 9, 1-9. [Pg.443]

Organic molecules such as aniline, pyrrole and 2,2 -bithiophene have been intercalated and polymerized within the galleries of clay minerals, FeOCl, V2O5 gel and other layered hosts to yield multilayered inorganic/organic polymer nanocomposites... [Pg.134]

The effect of polymer-filler interaction on solvent swelling and dynamic mechanical properties of the sol-gel-derived acrylic rubber (ACM)/silica, epoxi-dized natural rubber (ENR)/silica, and polyvinyl alcohol (PVA)/silica hybrid nanocomposites was described by Bandyopadhyay et al. [27]. Theoretical delineation of the reinforcing mechanism of polymer-layered silicate nanocomposites has been attempted by some authors while studying the micromechanics of the intercalated or exfoliated PNCs [28-31]. Wu et al. [32] verified the modulus reinforcement of rubber/clay nanocomposites using composite theories based on Guth, Halpin-Tsai, and the modified Halpin-Tsai equations. On introduction of a modulus reduction factor (MRF) for the platelet-like fillers, the predicted moduli were found to be closer to the experimental measurements. [Pg.7]

Krishnamoorti R, Silva AS (2000) Rheological properties of polymer layered-silicate nanocomposites. In Pinnavaia TJ, Beall G (eds) Polymer nanocomposites. Wiley, New York Ren J, Silva AS, Krishnamoorti R (2000) Macromolecules 33 3739... [Pg.78]

The dynamic mechanical thermal analyzer (DMTA) is an important tool for studying the structure-property relationships in polymer nanocomposites. DMTA essentially probes the relaxations in polymers, thereby providing a method to understand the mechanical behavior and the molecular structure of these materials under various conditions of stress and temperature. The dynamics of polymer chain relaxation or molecular mobility of polymer main chains and side chains is one of the factors that determine the viscoelastic properties of polymeric macromolecules. The temperature dependence of molecular mobility is characterized by different transitions in which a certain mode of chain motion occurs. A reduction of the tan 8 peak height, a shift of the peak position to higher temperatures, an extra hump or peak in the tan 8 curve above the glass transition temperature (Tg), and a relatively high value of the storage modulus often are reported in support of the dispersion process of the layered silicate. [Pg.109]

Krishnamoorti R, Giannelis EP (1997) Rheology of end-tethered polymer layered silicate nanocomposites. Macromolecules 30 4097-4102... [Pg.250]

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