One of the most significant current discussions in material properties is the chemical treatment effect on the proposed materials. In this paper, the effects of NaOH and α- APS silane treatments on the characteristics and thermal analysis of Polypropylene (PP) /Recycled Acrylonitrile Butadiene (NBRr) / Banana Skin Powder (BSP) was studied. The heated two roll mill was used to melt, mix the compositors at a temperature of 180°C to produce six different fibre loading (70/30/5, 70/30/10, 70/30/15, 70/30/20, 70/30/25 and 70/30/30w/w). The effects of NaOH and α-APS silane treatment on PP/NBRr/BSP composites were analyzed by Thermogravimetric Analysis (TGA) and Differential Scanning Calorimetry (DSC). Based on the results, the α-APS silane treated PP/NBRr/BSP composites has higher improvement on mechanical properties compared to the NaOH treated PP/NBRr/BSP composites, followed by the weakest mechanical properties of untreated PP/NBRr/BSP composites. These were due to good compatibility and stronger interaction between Si-O-Si moieties with the surface of fiber for α-APS silane treated BSP. Both α-APS silane and NaOH treated PP/NBRr/BSP composites have the same improvement of thermal properties and better than untreated PP/NBRr/BSP composites. DSC results also showed α-APS silane treated composite has a higher crystalline portion than untreated PP/NBRr/BSP composites. The results presented here may facilitate improvements in the material properties, especially Polypropylene (PP) /Recycle Acrylonitrile Butadiene Rubber (NBRr) /Banana Skin Powder (Bsp) Composites with NaOH and A-Aps Silane Treatment.
