Filler Gel and Rubber Gel in Silica-Filled Rubber Systems

Carbon-silica Dual Phase Filler, a New Generation Reinforcing Agent for Rubber. Part Vi. Time-temperature Superposition of Dynamic Properties of Carbon-silica Dual Phase Filler-filled Vulcanizates

Dynamic properties such as shear modulus, loss modulus, and loss factor were obtained at low strain amplitude over a wide range of frequency and temperature on vulcanizates filled with carbon black, silica, and carbon-silica dual phase filler. The data were shifted along the frequency scale. It was found that instead of a single smooth master curve, a pseudo-master curve with feather-like struc...

A novel non-aqueous sol-gel route for the in situ synthesis of high loaded silica-rubber nanocomposites.

Silica-natural rubber nanocomposites were obtained through a novel non-aqueous in situ sol-gel synthesis, producing the amount of water necessary to induce the hydrolysis and condensation of a tetraethoxysilane precursor by esterification of formic acid with ethanol. The method allows the synthesis of low hydrophilic silica nanoparticles with ethoxy groups linked to the silica surface which ena...

Properties of Vulcanized Polyisoprene Rubber Composites Filled with Opalized White Tuff and Precipitated Silica

Opalized white tuff (OWT) with 40 μm average particle size and 39.3 m(2)/g specific surface area has been introduced into polyisoprene rubber (NR). Their reinforcing effects were evaluated by comparisons with those from precipitated silica (PSi). The cure characteristic, apparent activation energy of cross-link (E(ac)) and reversion (E(ar)), and mechanical properties of a variety of composites ...

Reactive Processing of Silica-reinforced Tire Rubber

Investigation of structural, morphological and dynamic mechanical properties of unvulcanized PDMS/silica compound

In this study, the interaction between the silica filler and polydimethylsiloxanes (PDMS) was investigated from the aspects of the bound rubber and morphological characterization. With special attention to the dynamic properties, the dynamic test was conducted by dynamic shear rheometer. The results show that the modified fillers disperse uniformly within PDMS matrix without aggregation and con...