Aim and Objective: To compare and evaluate the effect of ultraviolet (UV) stabilizers (UV absorbers [UVA] and hindered amine light stabilizers [HALS]) on the color change of a commonly used silicone elastomer subjected to aging by three different methods. Materials and Methodology: Four groups of 30 samples each were studied; Group A-Control, Group B-Silicone + UVA (Chimassorb 81), Group C-Sili...

Molding in a fixed prosthesis is one of the most important stages rehabilitative treatment, as it there that attempts are made to reproduce dental preparations and adjoining regions by using appropriate materials techniques. Among molding available on market, elastomers stand out, which polymers where prey occurs through increase chain establishment cross-links. The objective study present clin...

Thermoplastic Elastomers (TPE) are materials, which combine the advantages of elastomers and thermoplastics. TPE is not only used as replacement for thermoplastics. More and more parts, formerly made of rubber like CVJ boots and hydraulic seals, are nowadays made of TPE. Since the mechanical behavior of TPEs is different to elastomers, the design of TPE parts cannot be copied directly from thei...

Stenull and Lubensky [Phys. Rev. E 76, 011706 (2007)] have argued that shear strain and tilt of the director relative to the layer normal are coupled in smectic elastomers and that the imposition of one necessarily leads to the development of the other. This means, in particular, that a smectic-A elastomer subjected to a simple shear will develop smectic-C-like tilt of the director. Recently, K...

The present work is a detailed study of the connections between microstructural instabilities and their macroscopic manifestations — as captured through the effective properties — in finitely strained fiber-reinforced elastomers, subjected to finite, planestrain deformations normal to the fiber direction. The work, which is a complement to a previous and analogous investigation by the same auth...

Most recent developments in polymers from renewable resources have focused on thermoplastics, whereas there has been no comparable development of plastics with elastomeric properties. Here we evaluate the possibility of developing renewable elastomers based on starch. Potato starch plasticized with glycerol (called plasticized starch, or PLS) was melt-blended with small quantities (5 wt % or 15...