Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Nanocomposite epoxy polymer

The polymerization in situ (together with a filler) is often applied as a method for receiving nanocomposites. The matrix epoxy polymer cross-linking process both in nanofiller (Na+ - montmorillonite) presence and without it was studied within the framework of a strange (anomalous) diffusion conception [51,52]. A nanocomposites epoxy polymer/ Na+ - montmorillonite (EP/MMT) cross-linking was made at temperatures 353, 373 and 393 K, cross-linking of EP - at 393 K [53]. [Pg.94]

FIG. 10 Compressive (a) yield strength and (b) moduli for the pristine epoxy polymer and the exfoliated epoxy-clay nanocomposites prepared from three different kinds of organomontmorillonites. (From Ref. 40.)... [Pg.664]

J. Kim, K. Lee, K. Lee, J. Bae, J. Yang, and S. Hong, Studies on the thermal stabilization enhancement of ABS synergistic effect of triphenyl phosphate nanocomposite, epoxy resin, and silane coupling agent mixtures, Polym. Degrad. Stab., 79(2) 201-207, 2003. [Pg.262]

Z. Wang and T.J. Pinnavaia, Hybrid organic-inorganic nanocomposites Exfoliation of magadiite mono-layers in an elastomeric epoxy polymer, Chem. Mater., 1998, 10 1820-1826. [Pg.325]

Suguna Lakshmi, M., Narmadha, B. Reddy, B. S. R. (2008). Enhanced thermal stability and structural characteristics of different MMT-Clay/epoxy-nanocomposite materials. Polymer Degradation and Stability, Vol. 93, No. 1, pp 201-213... [Pg.303]

The fact of producing stable FS of nanocomposite on PEPA basis and increasing the operational characteristies of epoxy polymer was ascertained. It was demonstrated that the introduction of Cu/C nanocomposite into PEPA facilitates the formation of coordination bonds with nitrogen of amine groups, thus resulting in PEPA activity increase in ER hardening reactions. It was found out that the optimal time period of ultrasound processing of copper/carbon nanocomposite FS is 20 min. [Pg.235]

In Fig. 10, the comparison of experimental and calculated according to the Eq. (34) melt flow index values as a function of epoxy polymer contents Cgp in the considered nanocomposites is adduced. As one can see, the proposed fractal model gives a good correspondence, both qualitative and quantitative, to the experimental data. [Pg.280]

Hence, the stated above results have shown that melt viscosity extreme change of nanocomposites HDPE-EP could be described within the framework of the fractal model. The main structural parameter, controlling this effect, is the change of the fractal dimension of macromolecular coil in melt. The main physical cause, defining the mentioned effect, is a partial interaction of HDPE matrix and epoxy polymer particles. In this case the... [Pg.281]

In such nanocomposites, the polymer cover thiekness is regulated by the concentration ratio and polymerization conditions. The main difficulties in this method (especially in solidifying epoxy, formic and other resins) are the need to... [Pg.345]

The cellulose based materials that are used as nano-reinforcements are cellulose nanocrystals (i.e. whiskers and nanospheres), nanofibrillated cellulose, regenerated cellulose nanoparticles and electrospun nanofibers. A wide range of polymer matrices have been used to form cellulose nanocomposites. Synthetic polymers such as polypropylene, poly(vinyl chloride) (PVC) [102], waterborne epoxy [103], waterborne polyurethane [104], polyurethane [105], poly-(styrene-co-butyl acrylate) [106], poly(oxyethylene) [107], polysiloxanes [108], polysulfonates [109], cellulose acetate butyrate [110,111], poly(caprolactone) [112], poly(viny 1 alcohol) [113] and poly (vinyl acetate) [114]. Different biopolymers such as starch-based... [Pg.34]

Aua Auad, M. L., Nutt, S. R., Pettarin, V., Frontini, P. M. Synthesis and properties of epoxy-phenolic clay nanocomposites. eXPRESS Polym. Lett. 1 (2007) 629-639. [Pg.550]

Lia Liang, Y. L., Pearson, R. A. Toughening mechanisms in epoxy-silica nanocomposites (ESNs). Polymer 50 (2009) 4895 905. [Pg.553]

WangZ, Massam J, PinnavaiaTJ (2000) Epoxy-Clay Nanocomposites, in Polymer-Clay Nanocomposites. PinnavaiaTJ, Beall GW (eds), WUey, Chichester, p. 127... [Pg.78]

U. Konwar, G. Das and N. KaraV., Mesuaferrea L. Seed oil based highly branched polyester and epoxy blends and their nanocomposites ,/AppZ Polym Sd, 2011, 121,1076-85. [Pg.207]

G. Das and N. Karak, Mesua ferrea L. seed oil based amido-amine modified nano-clay/epoxy nanocomposites ,/Appl Polym Sci, 2012,124,2403-13. [Pg.307]

Figure 9.36 shows the hackle zone of neat epoxy and nanocomposites. Neat polymer shows large hackle markings and nanocomposites show fine hackle 3D-markings. [Pg.322]

Reddy, C. S., Das, C. K., and Narkis, C. M. 2005. Propylene-ethylene copolymer nanocomposites Epoxy resin grafted nanosilica as reinforcing filler. Polymer Composites 26 806-811. [Pg.128]

Roohani M, Habibi Y, Belgacem NM et al (2008) Cellulose whiskers reinforced polyvinyl alcohol copol Tners nanocomposites. Eur Polym J 44 2489-2498 Ruiz MM, Cavaille JY, Dufresne A et al (2000) Processing and characterization of new thermoset nanocomposites based on cellulose whiskers. Compos Interface 7 117-131 Ruiz MM, Cavaille JY, Dufresne A et al (2001) New waterborne epoxy coatings based on cellulose nanofillers. Macromol Symp 16 211-222 Saito T, Nishiyama Y, Putaux JL et al (2006) Homogeneous suspensions of individualized microfibrils from TEMPO-catalyzed oxidation of native cellulose. Biomacromolecules 7 1687-1691... [Pg.585]

Z. Wang, T.J. Pinnavaiaand, Hybrid organic - inorganic nanocomposites exfoliation of magadiite nanolayers in an elastomeric epoxy polymer. Chemical Materials 10 (1998) 1820-1826. [Pg.236]

Hitachi has developed a heat-resistant material for printed wiring boards, consisting of an epoxy polymer containing nanosized silica, evenly dispersed by means of a sol-gel reaction. At 260 °C, the nanocomposite s elasticity was said to be about ten times higher than that of epoxy, and its thermal expansion coefficient was about one-third. [Pg.111]

Wang, Z., Lan. T. and Pinnavaia,T. (1996), Hybrid organic-inorganic nanocomposites formed from an epoxy polymer and a layered silicate acid (magadiite). Chemistry of Materials, Vol. 8, pp. 2200-2204. [Pg.414]

CdSe-CdS-ZnS core-multishell polymer nanocomposites were prepared by direct dispersion of CdSe-CdS-ZnS core-multishell QDs in an epoxy polymer matrix via a melt mixing technique. Nanocomposites filled with yellow-emitting QDs were more transparent than pure epoxy polymer. A shift in the luminescence of pure epoxy from the blue region to the yellow region was observed in the nanocomposite. Synthesized nanocomposites also showed enhanced tensile properties in comparison to pure epoxy polymer [236]. Several other studied reported the use of a melt blending process for the synthesis of semiconductor-polymer nanocomposites [237-241]. [Pg.301]

See other pages where Nanocomposite epoxy polymer is mentioned: [Pg.335]    [Pg.429]    [Pg.436]    [Pg.456]    [Pg.335]    [Pg.429]    [Pg.436]    [Pg.456]    [Pg.299]    [Pg.19]    [Pg.279]    [Pg.281]    [Pg.554]    [Pg.555]    [Pg.587]    [Pg.588]    [Pg.43]    [Pg.461]    [Pg.463]    [Pg.3]    [Pg.33]    [Pg.46]    [Pg.56]    [Pg.59]    [Pg.71]    [Pg.111]   
See also in sourсe #XX -- [ Pg.335 , Pg.337 ]



SEARCH



Epoxy nanocomposites

Epoxy polymers

© 2024 chempedia.info