Abstract
The purpose of this paper is to study the effect of thermal expansion process and rotational shear on the structure and properties of high-density polyethylene (HDPE) pipes. In this paper, HDPE pipes with excellent properties were prepared by the rotational shear system (RSS) and the thermal expansion process. The morphology study results showed that shish-kebab crystals appeared in the pipes. And with the application of thermal expansion process, the interlocking degree of the shish-kebab crystals was further deeper. The thickness of kebab increased greatly and a certain degree of tilt occurred. With the increase of the tensile ratio, the mechanical properties were improved. When the tensile ratio was 1.25, the hoop tensile strength of the pipes increased by 31.50%, and the creep rate also increased by 67.44%. The better mechanical properties at the tensile ratio of 1.25 are mainly attributed to the tighter Shish-Kebab structure after tube expansion.
Sign-in/Register to access full text options 
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.
