Nano-TiO2 effect on thermal, rheological and structural properties of thermoplastic polypropylene nanocomposites

In this paper, nanofillers obtained by Sol-gel method have been incorporated as a filler in polypropylene composite in order to improve the thermal, rheological properties and ensuring a good interface compatibility of the resulting material. Nano-TiO2 were syn-thesized based on the sol-gel process and supercritical drying of ethanol in attempt to study the thermal stability, structure, and morphology of the resulting nanoparticles powders. The impact of nano-TiO2 on the degree of crystallinity, thermal and rheological properties was studied using DSC, TGA and rheology technique. The obtained results revealed that, the sphere is composed of 20-30 nm nanoparticles with excellent thermal stability. Based on TGA and DSC study the molar ratio of TiO2 influences the final thermal stability and degree of crystallinity of the polypropylene matrix. From DMA testing, it was found that the best viscoelastic belong with incorporation of 5Wt. %TiO2. It was found that the use of 5Wt. %TiO2 seems to be an effective and very promising way to increase the rheological properties of the resulting composite. (C) 2022 The Authors. Published by Elsevier B.V.& nbsp;

Automated summary

In this paper, nanofillers obtained by Sol-gel method were added as fillers in polypropylene composites to enhance the thermal and rheological properties and ensure good interface compatibility. The synthesized nano-TiO2 powders exhibited excellent thermal stability and viscoelasticity. The study showed that the molar ratio of TiO2 influenced the final thermal stability and degree of crystallinity of the polypropylene matrix. The incorporation of 5wt% TiO2 was found to be an effective and promising method to improve the rheological properties of the resulting composite.