Acrylate rubber ACM

FIGURE 3.3 (a) Transmission electron microscopic (TEM) image of acrylic rubber (ACM)-siUca hybrid nanocomposite synthesized from 10 wt% of tetraethoxysilane (TEOS). (From Bandyopadhyay, A., Bhowmick, A.K., and De Sarkar, M., J. Appl. Polym. Sci., 93, 2579, 2004. Courtesy of Wiley Interscience.) Transmission electron microscopic (TEM) photographs of acrylic rubber (ACM)-silica hybrid nanocomposites prepared from (b) 30 wt% and (c) 50 wt% tetraethoxysilane (TEOS) concentrations. (From Bandyopadhyay, A., Bhowmick, A.K., and De Sarkar, M., J. Appl. Polym. Sci., 93, 2579, 2004. Courtesy of Wiley InterScience.)... 

FIGURE 3.16 Morphology and visual appearance of acrylic rubber (ACM)-silica and epoxidized natural rubber (ENR)-silica hybrid composites prepared from different pH ranges (a) transmission electron microscopic (TEM) picture of ACM-siUca in pH 1.0-2.0, (b) scanning electron microscopic (SEM) picture of ACM-siUca in pH 5.0-6.0, (c) SEM image of ACM-siUca in pH 9.0-10.0, (d) TEM picture of ENR-silica in pH... 

FIGURE 3.17 Tensile stress-strain plots for uncross-linked acrylic rubber (ACM)-siUca and epoxidized natural rubber (ENR)-silica hybrid composites synthesized from various pH. Letter p in the legends indicates pH and the numbers following the letter are indicative of the pH ranges e.g., 1 means pH range of 1.0-2.0, similarly 3 means 3.0-4.0. (From Bandyopadhyay, A., De Sarkar, M., and Bhowmick, A.K., J. Mater. Sci., 41, 5981, 2006. Courtesy of Springer.)... 

TPEs prepared from rubber-plastic blends usually show poor high-temperature properties. This problem could be solved by using high-melting plastics like polyamides and polyesters. But, often they impart processing problems to the blends. Jha and Bhowmick [49] and Jha et al. [50] have reported the development and properties of novel heat and oil-resistant TPEs from reactive blends of nylon-6 and acrylate rubber (ACM). The properties of various thermoplastic compositions are shown in Table 5.4. In this kind of blend, the plastic phase forms the continuous phase, whereas... 

FIGURE 5.16 Viscosity-shear stress relationships for various compositions of nylon-6-acrylate rubber (ACM) blends at 240°C. 

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. 

Acrylic Rubbers (ACMs). Polar elastomers are obtained by the copolymerization of acrylate esters with monomers, which contain reactive sites for cross-hnking reactions to take place during vulcanizations. The general chemical structure for ACM rubbers is as follows ... 

PEST/rc, BR, and an impact modifier Makroblend With (meth)acrylic esters (and acrylonitrile, acrylate rubber, ACM, EVAc, and/or ABS) Cohen 1980, 1982 Bier and Indner 1982... 

Wootthikanokkhan et al. studied distributions of carbon black in 30/70 % (w/w) NR/acrylic rubber (ACM) blends as a function of the carbon black content and type using DMTA technique. Two different types of carbon black (N220 and N330) were used, and 10-50 phr carbon black was compounded to the mbber blends. From the DMTA thermograms of various blends, the weight fractiOTis of carbon black in... 

M class elastomers contain only C atoms and no double bonds in their backbones this improves aging resistance. Examples ethylene-propylene rubber (EPDM), acrylate rubber (ACM), fluoro rubber (EKM)... 

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