Hou, Z. H. published the artcileEffects of radical scavenger on space charge accumulation of polypropylene/ultralow density polyethylene composites for high voltage direct current cable insulation, Related Products of piperidines, the main research area is polypropylene direct current cable insulation radical scavenger.
In this work, the space charge behavior and breakdown strength of polypropylene (PP)/ultralow d. polyethylene (ULDPE) blends and three different radical scavenger modified composites are performed at 30, 60 and 90°C. The trap distribution in the radical scavenger and the composites are investigated based on quantum chem. calculation and isothermal discharge current test. The results show that, 0.3 wt% addition of radical scavenger has little effect on the thermal and mech. property of the composites. The radical scavenger can introduce traps with different energy levels, which has greatly inhibited the space charge accumulation aggravated by the increasing temperature in the PP/ULDPE (PU) blends. Although the overall breakdown strength of the samples decreases with the rise of temperature, the performance of radical scavenger modified composites show the best, which suggests a great correlation with the traps they introduce, the mol. structure and chem. reaction of the additives themselves. The PP/ULDPE blends with 0.3 wt% C944 exhibit great potential for HVDC cable insulation.
IEEE Transactions on Dielectrics and Electrical Insulation published new progress about Attenuated-total-reflectance Fourier-transform IR spectroscopy. 52829-07-9 belongs to class piperidines, name is Bis(2,2,6,6-tetramethylpiperidin-4-yl) decanedioate, and the molecular formula is C28H52N2O4, Related Products of piperidines.
Referemce:
Piperidine – Wikipedia,
Piperidine | C5H11N – PubChem