Power cables insulated with cross-linked polyethylene (XLPE) have been utilized worldwide for distribution and transmission networks. There are several advantages this type of insulation; it has better electrical, thermal, mechanical properties compared to other types insulation in medium high voltage Many studies aimed improve the XLPE characteristics through introducing nano fillers matrix. T...

Maleic anhydride-grafted-polyethylene was dynamically cross-linked via reactive melt blending with 4,4?-dithiodianiline. Thermal and mechanical properties of polyethylene vitrimers different cross-linking density were investigated. The results indicate that the degree crystallinity decreased increasing density. This behavior directly related to short-term long-term properties: showed a decrease...

penicillin g acylase from e. coli ta1 was immobilized by cross-linked enzyme aggregates (clea), a new method for immobilization. this biocatalyst and commercial immobilized penicillin g acylase (pga-450) were used to study the effect of ph, temperature and substrate concentration on the synthesis of ampicillin from phenyl glycine methyl ester (pgme) and 6-aminopenicillanic acid (6-apa). compare...