Notice of RetractionThe relationship between oil resistance and abrasion resistance of FKM/NBR blends in oil medium

Notice of Retraction

After careful and considered review of the content of this paper by a duly constituted expert committee, this paper has been found to be in violation of IEEE´s Publication Principles.

We hereby retract the content of this paper. Reasonable effort should be made to remove all past references to this paper.

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NBR is often used as the stator materials of Submersible Progressive Cavity Pump (SPCP). Its premature failure is the main reason to shorten SPCP working life. This article compared the wear resistance of the same hardness NBR and FKM and its ratio blends 2:8, 3:7, 5:5, 7:3, 8:2, before and after swelling in crude oil medium. Swelling experiments soak cycle for 72 hours, the temperature of 50±2°C and 70±2°C, wear resistance experiments in the model MLS-225 abrasive wear test machine. Experimental results show that the NBR quality rate under two kinds of soaking temperature (between 0.47%-1.32%) is less than the quality ratio of different blending rubber (between 0.48%-1.72%), the quality rate of FKM (between 1.15%-1.35%) is more than NBR quality rate; indicating that the oil resistance of NBR is the best at 50°C and 70°C, seven kinds of rubber oil resistance have a downward trend with temperature rise; The wear experiments show that the ratio 2:8 of FKM/NBR blends wear resistance is better.