Epoxy coatings are used in a wide variety of applications due to their excellent chemical, thermal, and mechanical properties. However, susceptibility UV degradation has limited use exterior applications. Usually, organic absorbers stabilizers added epoxy systems improve stability, but performance decreases over time the loss UV-stabilizers. In this study, novel method was developed encapsulate...

In this research, a method for producing gum tragacanth (GT) fibers is presented. Ribbon type GT of Astragalus Gummifer species were obtained from local production lands. The gum was treated with alkali to increase its process ability, and allowed to stand for a period of time to reach the proper viscosity and/or to "ripen". Samples with different ripening times were prepared and their viscosit...

2.4. Sol-Gel Reactions 2070 2.5. Polyol Methods 2071 2.6. Flow Injection Syntheses 2071 2.7. Electrochemical Methods 2071 2.8. Aerosol/Vapor Methods 2071 2.9. Sonolysis 2072 3. Stabilization of Magnetic Particles 2072 3.1. Monomeric Stabilizers 2072 3.1.1. Carboxylates 2073 3.1.2. Phosphates 2073 3.2. Inorganic Materials 2073 3.2.1. Silica 2073 3.2.2. Gold 2074 3.3. Polymer Stabilizers 2074 3.3...

Five malonanilide derivatives (M1-M5) were prepared by the reaction of ethyl malonate with aniline derivatives. These compounds were investigated as new stabilizers for double-base propellants (DBPs). The evaluation process has been performed through thermal stability tests, thermal analyses measurements (TGA and DSC) and kinetic parameters calculations (E(a)). The results of the new stabilizer...

A series of small and well defined cobalt nanoparticles were synthesized by the chemical reduction of cobalt salts in water using NaBH4 as a reducing agent and using various polymeric stabilizers. The obtained nanocatalysts of similar mean diameters (ca. 2.6 nm) were fully characterized and tested in the aqueous phase Fischer-Tropsch Synthesis (AFTS). Interestingly, the nature and structure of ...

sodium salt of n-acetyl-dl-tryptophan (at) and octanoic acid (caprylic acid ca) individually and in combination were studied as thermal stabilizer with different concentrations in heat treatment of human albumin solution. hplc protein profiles before pasteurization of albumin showed less than 1% polymer. in free stabilizer albumin solution during pasteurization visible clot was formed. but by u...

in a previous paper, the second author established that, given finite fields $f < e$ and certain subgroups $c leq e^times$, there is a galois connection between the intermediate field lattice ${l mid f leq l leq e}$ and $c$'s subgroup lattice. based on the galois connection, the paper then calculated the irreducible, complex character degrees of the semi-direct product $c rtimes {rm gal} (e/f)$...