Magnetorheological elastomers (MREs) are mainly composed of magnetizable particles and elastic polymer. The polymer matrix plays an important role in mechanical performances of MREs. In this study, the polyurethane (PU), which is synthesized by using toluene diisocyanate (TDI) and poly (propylene glycol) (PPG-220), is selected as a matrix because it has better degradation stability than natural...

in this research, the effect of different storage conditions (cold, semi technical and traditional storages) at 180 days after storage on the qualitative and quantitive properties of garlic populations were investigated. white and pink populations were packaged in wooden boxes and net pockets and factors i. e. weight loss, moisture content, spoilage, firmness and total pyruvic acid were measure...

The influence of superheat treatment on the microstructure and dynamic mechanical properties A357 alloys has been investigated. study was performed by optical microscope. Dynamic (storage modulus, loss damping capacity) were measured analyzer (DMA). Microstructure showed coarser angular eutectic Si particles with larger {\alpha}-Al dendrites in non-superheated alloy. In contrast, finer rounded ...

The goal of this study is to find out how some properties wood–polymer nanocomposites are affected by the processing technology, nanomaterials, and ratio coupling agents. To achieve objective, extruded dry blended samples made from wood flour with MAPP, ZnO nanoparticles (0, 1, 3, 5 wt%), polypropylene. mechanical improve significantly MAPP loading. Due more homogeneous structure nanocomposites...

In this study, effect of MAPE (maleic anhydride polyethylene) as the compatibilizer on the mechanical properties of wood-flour polyethylene composites has been investigated by using Dynamic Mechanical Analysis (DMA). Composites were made at 25% and 50% by weight fiber contents and 1% and 2% compatibilizer respectively. Controls were also made at the same fiber contents without the compatibilize...

Multiphoton microscopy (MPM) holds promise as a noninvasive imaging technique for characterizing collagen structure, and thus mechanical properties, through imaging second harmonic generation (SHG) and two-photon fluorescence in engineered and real connective tissues. Controlling polymerization pH to manipulate collagen gel microstructure, we quantified pore and fiber dimensions using both stan...