Non destructive, real-time monitoring of the stress/strain state of polymer composites can be achieved through a “nanomodification” of the matrix. Due to their high Raman scattering, electrical conductivity and implicit sensitivity to pressure and temperature, single-walled carbon nanotubes (SWCNT) are ideal elements to fulfil this task. In this work, SWCNT at a loading fraction as low as 0.1 w...

OBJECTIVE The purpose of this study was to investigate the polymerization temperature of a bulk filled composite resin light-activated with various light curing modes using infrared thermography according to the curing depth and approximation to the cavity wall. MATERIAL AND METHODS Composite resin (AeliteFlo, Bisco, Schaumburg, IL, USA) was inserted into a Class II cavity prepared in the Tef...

Curing-induced internal stresses in epoxy coatings are highly influenced by the type and concentration of product ingredients conditions applied. In this work, effects on curing-dependent modulus stress development epoxy/crosslinker chemistry, curing temperature, relative humidity, filler conditions, initial solvent concentration, studied. Analytical methods include attenuated total reflection-...

nanocomposite vulcunizates based on styrene-butadiene rubber (sbr), organoclay and a conventional sulfur curing system were prepared by melt blending process in an internal mixer. in order to study the effects of the type of interfacial compatibilizer on the properties of sbr and clay nanoparticles,three types of compatibilizers, maleic anhydride grafted ethylene-propylene diene rubber (epdm-g-...

Roller-Compacted Concrete (RCC) is a zero-slump concrete, with no forms, reinforcing steel, finishing and wet enough to support compaction by vibratory rollers. Because the effectiveness of curing on properties durability, primary scope this research study effect various methods (air curing, emulsified asphalt(flan coat) 7 days water permanent curing) different porcelanite (local material used ...