The Performance of Poly Methyl Methacrylate/Clay Nanocomposite as Novel Pour Point Depressant on Rheological Properties of Model Waxy Crude Oil

Document Type: Research Paper


Department of Chemical Engineering, University of Isfahan, Isfahan, Iran



A novel type of polymeric nanocomposite pour point depressant (PPD) poly methyl methacrylate/clay nanocomposite (PMMA/clay nanocomposite) which is a composite of PMMA on the basis of montmorillonite (MMT) synthesized and characterized. To have a comprehensive comparison, the influences of neat poly methyl methacrylate (PMMA) and PMMA/clay nanocomposite on the reduction of pour point, gelation point, apparent viscosity and yield stress of a model waxy crude oil are investigated and their performances are evaluated precisely. The rheometry tests results show that the addition of 400 ppm of PPMA and 800 ppm of PMMA/clay nanocomposite reduces the pour point from 13˚C (for untreated sample) to 0 and -3 ˚C, respectively which demonstrate about 120% reduction in the pour point.