Novel Carbon Black-Halloysite Nanotube Reinforced NBR-PVC Hybrid Oil Seals for Automotive Applications

摘要

Background: The current scenario requires the rubber industries to develop cheaper andenvironmentally friendly fillers as an alternative to the conventionally used carbon black filler.Objective: This study aims at developing new NBR/PVC oil seals for automotive applications usingCB-HNT hybrid fillers.Method: In various patents, FESEM and XRD were used to study the microstructure of the samples.Tensile and tear tests were conducted by using a universal testing Machine. Hardness and compressionset were studied using shore a hardness tester and compression set. Thermogravimetric analysis is usedto evaluate the thermal stability of the samplesResults: The tensile strength, elongation at break, 100% modulus, tear strength and swelling resistanceof the NBR/PVC hybrid nanocomposites are increased by 12.87%, 13.91 %, 14.65%, 33.58%, and 25.9%, respectively compared to the conventional composites. Hardness and compression set of the nanocompositeshad improved significantly. Incorporation of HNT in carbon black filled NBR/PVC compositesimproved the thermal stability with an increment of 4.42 °C in the maximum degradation temperature.XRD and FESEM studies reveal the intercalation of NBR/PVC chains, CB and otheringredients into the HNT galleries and formation of intercalated structures.Conclusion: The results demonstrate that the synergistic effect of CB-HNT hybrid fillers, improvedNBR/PVC-CB-HNT interfacial interactions and formation of intercalated structures are believed to beresponsible for the superior mechanical properties, swelling resistance and thermal stability of the NBRhybrid nanocomposites.