епоксид

The Immobilized Cu-Ni-Fe-Cr Layered Double Hydroxide on Silica-Layered Magnetite as a Reusable Mesoporous Catalyst for Convenient Conversion of Epoxides to 1,2-Diacetates

In this study, $Cu-Ni-Fe-Cr$ layered double hydroxide (LDH) immobilized on silica layered magnetite $({Fe}_{3}{O}_{4}@{SiO}_{2}@Cu-Ni-Fe-Cr \,  LDH)$ was investigated towards ring opening of diverse epoxides with acetic anhydride to afford vic-diacetates within 15–40 min in high yields. Reusability of the nano-LDH was also studied for 6 consecutive cycles without the significant loss of catalytic activity.

Influence of Initiators on the Adhesion Properties of Bitumen Modified by Natural Origin Epoxide

The article is presenting a modification of bituminous binder with ecological epoxidized rapeseed oil (BERO) in the presence of the initiator (hardener). Adipic acid (AA), maleic anhydride (MA) and polyethylene polyamine (PEPA) were used as the initiators. The effect of modification temperature and, as well as initiator nature, on the bitumen properties was determined. Bitumen modified with BERO was evaluated by the following indicators: softening temperature, penetration, ductility, and adhesion to the glass.

STUDY OF INSPECTION OF THE PROCESSES OF MODIFICATION OF ROAD BITUMES OF EPO AND ITS IMPACT ON QUALITY PROPERTIES OF BMP

In our time, the use of bitumen modified with epoxy compounds is considered as an
effective means of improving the durability of road pavement. Given the rather long duration
of modification of road bitumen epoxy rapeseed oil (EPO), we studied the processes of
modifying bitumen using ultrasonic cavitation. For research, road bitumen modified with
rapeseed oil epoxy using cavitation and without it. Cavitation in the process of modification of
road bitumen was used to reduce the modification time.