In the research, aminoethyl imidazolines of cottonseed oil fatty acids with diethylenetriamine have been synthesized using the ultrasonic device creating the effect of cavitation. The yield of imidazolines was 90% - 9...In the research, aminoethyl imidazolines of cottonseed oil fatty acids with diethylenetriamine have been synthesized using the ultrasonic device creating the effect of cavitation. The yield of imidazolines was 90% - 95%. The influence of the synthesized imidazolines on lubricity quality of low sulfur diesel fuels having low lubricating quality was studied. The results showed that at concentrations 200 - 250 ppm the synthesized imidazolines can be applied as additives enhancing lubricity quality of diesel fuels.展开更多
In the paper, the results of investigations of temperature and frequency dependences of dielectric permeability and dielectric loss of compositions LDPE + xvol%Bi<sub>2</sub>Te<sub>3</sub> are ...In the paper, the results of investigations of temperature and frequency dependences of dielectric permeability and dielectric loss of compositions LDPE + xvol%Bi<sub>2</sub>Te<sub>3</sub> are stated. The investigations were carried out at frequency 10 – 10<sup>5</sup> Hz and temperature 20°C - 150°C intervals, respectively. It was revealed that increase of percentage of the filler Bi<sub>2</sub>Te<sub>3</sub> in the matrix, reduces to increase of dielectric permeability and dielectric loss of composites LDPE + xvol%Bi<sub>2</sub>Te<sub>3</sub> in connection with the change reducing to Maxwell-Wagner’s volume polarization and emergence of comparative strong inner field in semiconductor clusters.展开更多
文摘In the research, aminoethyl imidazolines of cottonseed oil fatty acids with diethylenetriamine have been synthesized using the ultrasonic device creating the effect of cavitation. The yield of imidazolines was 90% - 95%. The influence of the synthesized imidazolines on lubricity quality of low sulfur diesel fuels having low lubricating quality was studied. The results showed that at concentrations 200 - 250 ppm the synthesized imidazolines can be applied as additives enhancing lubricity quality of diesel fuels.
文摘In the paper, the results of investigations of temperature and frequency dependences of dielectric permeability and dielectric loss of compositions LDPE + xvol%Bi<sub>2</sub>Te<sub>3</sub> are stated. The investigations were carried out at frequency 10 – 10<sup>5</sup> Hz and temperature 20°C - 150°C intervals, respectively. It was revealed that increase of percentage of the filler Bi<sub>2</sub>Te<sub>3</sub> in the matrix, reduces to increase of dielectric permeability and dielectric loss of composites LDPE + xvol%Bi<sub>2</sub>Te<sub>3</sub> in connection with the change reducing to Maxwell-Wagner’s volume polarization and emergence of comparative strong inner field in semiconductor clusters.
