Binder for colored asphalt based on light hydrogenated petroleum polymer resins

The article provides an overview of the production of binders, sets out the requirements for the quality indicators of colored asphalt, the technology of production of binders, and also considers promising areas in the production of colorless binders. The purpose of the work was to create an affordable organic binder based on light hydrogenated petroleum polymer resins and use the developed binder for colored asphalt. To achieve this goal, we analyzed patents for the production of binders, on the basis of which the composition of raw materials was selected, and studied the physical and mechanical characteristics of the obtained samples on both hydrogenated and non-hydrogenated petroleum polymer resin.

Gamma Irradiated Starch Based Hydrogel Impregnated with Silver Nanoparticle

Hydrogel based on petroleum polymer are expensive, non-biodegradable and non-decompose which lead them to heavy waste in environment. In this paper, biopolymer is used to overcome this problem and promote environmental friendliness and biocompatible to the human skin and impregnation of silver nanoparticle (SNP) acts as anti-bacterial which needed for this application. The hydrogel is prepared by mixing the solution of sago starch with polyvinyl alcohol solution for polymeric grafting before impregnated with the SNP and finally this solution is subjected to the gamma irradiation. The irradiated starch based hydrogels is evaluated for its swelling properties, chemical functionalities and phase analysis. The hydrogels produced from this method is observed high in transparency and swelling behaviour as well as high water absorbency.