Search

Thermoplastics have been widely used in petroleum, chemical, construction, urban gathering and transportation systems due to their superior performance. This work focuses on the corrosive behaviors of linear low-density polyethylene (PE-LLD) and polypropylene (PP) against sulfuric acid, nitric acid, hydrochloric acid, sodium hydroxide and sodium chloride solution. The research results indicate that the impact strength of PP was found to show a loss rate of 23. 9 % after corrosion Ma 10 wt % NaOH solution for one week, whereas the loss rate for PE-LLD was 22. 6 % after corrosion in a 10 wt % HCl solution for two weeks. The effect of H2 SO4 solution with a concentration of 10 wt % on the melting enthalpy of PE-LLD was very noticeable, and the enthalpy value decreased by 54. 4 % after immersion corrosion for 6 weeks. [ABSTRACT FROM AUTHOR]