Abstract
We propose a microscopic structural deformation model of hard elastic polypropylene (HEPP) during uniaxial stretching using time-resolved simultaneous wide- and small-angle X-ray scattering measurements. It is found that ‘double’ yielding point, characteristic of HEPP in the tensile deformation, corresponds to the formation of the voids with a fine chain slip within the lamellae, followed by the fragmentation of the lamellae associated with a coarse chain slip. Based on the X-ray scattering measurements, we discuss relationship between the strain in the cold stretching and air permeability of a microporous membrane prepared by hot stretching, following the cold stretching.
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 callDisclaimer: 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.
