Abstract

The influence of ageing on low density polyethylene (LDPE) in various ionic solutions and under electric field has been investigated by thermally stimulated creep (TSCr), which makes it possible to characterize the amorphous and paracrystalline phases. The TSCr spectrum of reference LDPE shows the existence of three mechanical retardation modes labeled alpha , beta , and gamma in the order of decreasing temperatures. The alpha mode has been associated with mechanisms involving the paracrystalline phase while the beta and gamma modes have been attributed to the amorphous phase. The experimental data deduced from the analysis of TSCr spectra have been plotted on a compensation diagram: they define the 'structure' of the disordered phases of reference LDPE. The comparative study of LDPE samples aged in various environmental conditions under electric field shows that the paracrystalline phase is destructured, and that a plasticization process takes place. >

Talk to us

Join us for a 30 min session where you can share your feedback and ask us any queries you have

Schedule a call

Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.