Investigation of the mechanical-dynamic and thermal properties of nanocomposites manufactured from rapeseed stalk flour/ nanographene and high-density polyethylene

Document Type : Research Paper

Authors

1 Department of Wood, and Paper Science and Technology, Gonbad Kavous University, Gonbad Kavous, Iran

2 Institute of Chemistry and Petrochemical, Standard Research Institute, Karaj, Iran

3 University of Gonbad Kavous

10.22034/ijwp.2023.1971217.1571

Abstract

This research aimed to investigate the mechanical performance, thermal stability, and viscoelasticity of reinforced rapeseed flour/ high-density polyethylene composites with different amounts of nanographene. Rapeseed flour and high-density polyethylene with equal weight ratio, along with compatibilizer (3 phc) and nanographene at four levels of 0, 0.5, 1, 1.5, and 2 phc were used to make the samples. The viscoelastic and thermal behavior of the samples were evaluated by dynamic-mechanical thermal analysis (DMTA), thermogravimetric analysis (TGA), and differential scanning calorimetry (DSC). Also, the dispersion distribution of graphene nanoparticles in composites was studied by a field emission scanning electron microscope (FE-SEM). The results showed that the addition of nanographene to the composites increased the storage and loss modulus and improved the thermal stability of the composites by increasing the thermal oxidation degradation temperature and residual carbon. The results showed that the addition of nanographene to the composites increased the storage and loss modulus and improved the thermal stability of the composite via increasing the thermal oxidation degradation temperature and residual char. The microscopic images showed that the use of nanographene improved the adhesion between filler and polymer.

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References

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Iranian Journal of Wood and Paper Industries
Volume 13, Issue 4
March 2023
Pages 445-456

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