Mass balance studies in forested catchments in the northeastern USA show that S losses via streamwater SO4 exceed measured atmospheric S inputs. Possible sources of the excess S loss include underestimated dry deposition, mineralization of organic S in soils, desorption of soil sulphate, oxidation of recently formed sulphides and mineral weathering. Evaluating the relative contribution of these...

In this work, the effects of weld lines, additives and degree QUV weathering on tensile behavior a range high-density polyethylene composites with calcium carbonate, stabilizers carbon black/SEBS masterbatch are studied. The is characterized using FTIR-derived carbonyl, double-bond carbonate indexes based curve fitting, to allow for fairer comparison specimens without carbonate. Weld-line exhib...

in this study, the effect of hydrocarbon and rosin ester resins combination on the physical and mechanical properties of thermoplastic road markings were evaluated. at first, two basic thermoplastic road marking formulations based on hydrocarbon and rosin ester resins were prepared. several samples of the blends of two basic formulations for thermoplastic road marking were characterized and com...