polymer application for the improvement and modification of the bitumen used in roads surfaces has expanded in recent decades. the roads engineers and constructors, therefore, have used the modified bitumen in asphalts helping in this way to increase roads and pavements service life and improving the durability of the roads and asphalts. the bitumen used in asphalt mixture constitutes only a lo...

Suberin is a natural polyester providing the impermeability and mechanical damping of plant cell walls. It fascinating because ester bonds in suberin can be easily hydrolyzed to provide various functional chemical precursors for further applications. This study investigates an unprecedented way tailor energy-absorbing capabilities silica-reinforced styrene-butadiene rubber (SBR) composites by i...

The main advantages of the use silica instead carbon black in rubber compounds are based on a silane coupling agent. agent to modify surface improves compatibility between and rubber. There two different possibilities modifying by silane: ex-situ in-situ. present work studies differences these processes how they affect in-rubber properties filled SBR compounds.

Resistance of antichemical clothing primarily depends on the type of material it is made from, in particular on the type of polymer used for coating the fabric carrier. This paper reports on systematic investigations on the influence of the cross-linking density of an elastomer and the composition of a cross-linked elastomer on its resistance to permeation of selected organic solvents. Tests of...

Organic sticky contaminants represent one of the biggest technical challenges in paper recycling process. These reduce strength, cause plugging wires and felts, stick to or deposit on machine parts affecting runnability machine. The removal these is difficult achieve along process due heterogeneous nature organic contaminants. In this study, multiple wastepaper grades was analyzed characterized...

BACKGROUND Concerns about the possible toxic effects of workplace exposures in the synthetic rubber industry have centered on 1,3-butadiene (BD), styrene and dimethyldithiocarbamate (DMDTC). Our previous mortality studies of over 17,000 male synthetic rubber workers found an excess of leukemia that may be due to BD or BD plus other chemicals. Experimental studies have shown that BD produces mam...

1,3-Butadiene is a major monomer in the rubber and plastics industry and is one of the highest-production industrial chemicals in the United States. Although not highly acutely toxic to rodents, inhalation of concentrations as low as 6.25 ppm causes tumors in mice. Butadiene is oncogenic in rats, but much higher exposure concentrations are required than in mice. Chronic toxicity targets the gon...

Silicon (Si) is recognized as a promising anode material for high-energy-density lithium-ion batteries. However, under condition of electrode comparable to commercial graphite anodes with low binder content and high density, the practical use Si limited due huge volume change associated Si-Li alloying/de-alloying. Here, we report novel core-shell composite, having reversible capacity ~ 500 mAh ...