Effect of Erucic Acid (cas 112-86-7) on the rheological and surface properties of coal tar pitch

Add time:08/22/2019    Source:sciencedirect.com

Coal tar pitch (CTP) was modified using Erucic Acid (cas 112-86-7), CH3(CH2)7CH=CH(CH2)11COOH, and the rheological and surface properties of the modified CTP were evaluated. The effect of erucic acid was investigated using a rotational viscometer as well as by drop and weight tests. The modified CTPs were characterized by Fourier transform infrared spectroscopy and scanning electron microscopy following a carbonization process. The results showed significant differences in several properties between the CTP and modified CTPs, such as decreases in viscosity, wetting temperature, and softening point when erucic acid content was 1–3 wt% of CTP. An improvement in bonding between the coke and the modified CTP can be achieved when the coke value remained 62%. Moreover, a modification mechanism was proposed to explain the physical plastification of CTP modified with erucic acid.

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