Rod‐Like Silicate‐Epoxy Nanocomposites

Abstract

Summary: Epoxy nanocomposites containing rod‐like silicate (attapulgite) were prepared using a simple organic modification to the nanorods. The modification led to effective interfacial adhesion between the ceramic nanorods and the epoxy resin and hence good load transfer. Scanning electron microscopy examination revealed a uniform dispersion of nanorods in the epoxy resin. Compared to the neat resin, nanocomposites with 7.47 vol.‐% nanorods exhibited an increase in the (rubbery state) storage modulus of 122.5%. In addition, the nanocomposites exhibited improved dimensional stability both above and below the Tg.Storage modulus of the neat resin and nanocomposites.magnified imageStorage modulus of the neat resin and nanocomposites.

Effect of reaction conditions on silanisation of sepiolite nanoparticles

“…[14] Surface modification of clay makes it compatible with the hydrophobic polymer matrices. [15,16] Clay minerals are surface-modified through different mechanisms, i.e. adsorption, ion exchange with organic/inorganic cations and grafting with organic compounds including coupling agent or polymer.…”

Attapulgite@polymer particles with double‐layer polymer shell via soapless seeded emulsion polymerization

“…ATP was purified by the procedure reported previously 29 and then pretreated with the surfactant CTAB in ultrasonic bath as follows: 5.0 g attapulgite, 2.0 g CTAB, 400 mL water were mixed into a beaker. The mixture was sonicated in an ultrasound bath for 8 h, the sediments were discarded, and the stable supernatant suspension was used for further experiments.…”

Influence of attapulgites on cure‐reaction‐induced phase separation in epoxy/poly(ether sulfone) blends

“…Nutt et al 6 proved that epoxy nanocomposites containing ATT have potential for significant improvements in mechanical properties and dimensional stability with temperature changes. 6 Thermosets, such as epoxy resins, tend to have characteristic low toughness and poor crack resistance. Therefore, in the past 2 decades, much work has been done to toughen these highly crosslinked thermosets with rubber 7,8 or thermoplastics [e.g., poly(ether imide) 9,10 ].…”