Thermal properties, thermo-oxidation and UV-thermo-humidity complex stability of polyethylene/modified fly ash/ultraflow composites


Authors

  • Nguyen Thuy Chinh
  • Nguyen Thi Thu Trang
  • Tran Thi Mai
  • Nguyen Vu Giang
  • Tran Huu Trung
  • Mai Duc Huynh
  • Thai Hoang
DOI: https://doi.org/10.15625/2525-2321.2017-00530

Keywords:

Ultraflow, thermal property, thermal oxidation, accelerated weathering test, HDPE composite

Abstract

This study concerns the effect of ultraflow (UTF) content on the thermal property; thermo-oxidation and photo thermal-humidity stability of composites based on high density polyethylene (HDPE) and modified fly ash (MFA). The different scanning calorimeter analysis (DSC) results show that the relative crystallinity of HDPE/MFA and HDPE/MFA/UTF composites is lower than that of HDPE. The thermal properties of HDPE/MFA/UTF composites were studied by using thermogravimetric analysis (TGA) characteristic. Thermal stability of HDPE/MFA/UTF composites is higher than HDPE and HDPE/MFA composite. The tensile properties (tensile strength, elongation at break and Young’s modulus) of the composites after thermal aging test had a tendency to reduce with increasing the UTF contents. The retention of tensile strength and Young’s modulus of HDPE/MFA/UTF composites is larger than that of HDPE/MFA composite while the elongation at break of HDPE/MFA/UTF composites  is less than that of HDPE/MFA composite. The results of accelerated weathering test showed that the tensile strength, elongation at break and Young’s modulus of HDPE/MFA/UTF composites after 168 hour accelerated weathering test were increased much higher than those of HDPE/MFA composites.

Keywords. Ultraflow, thermal property, thermal oxidation, accelerated weathering test, HDPE composite.

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Published

31-12-2017

How to Cite

Chinh, N. T., Thu Trang, N. T., Mai, T. T., Giang, N. V., Trung, T. H., Huynh, M. D., & Hoang, T. (2017). Thermal properties, thermo-oxidation and UV-thermo-humidity complex stability of polyethylene/modified fly ash/ultraflow composites. Vietnam Journal of Chemistry, 55(6), 709. https://doi.org/10.15625/2525-2321.2017-00530

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