Loading...
Cavitation in die drawn poly(4-methyl-1-pentene) during second-stage tensile deformation
Han, C. Lyu, D. Lu, Y. Caton-Rose, Philip D. Coates, Philip D. Men, Y.
Han, C.
Lyu, D.
Lu, Y.
Caton-Rose, Philip D.
Coates, Philip D.
Men, Y.
Publication Date
2024-02-19
End of Embargo
Supervisor
Rights
© 2024 Elsevier. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
Peer-Reviewed
Yes
Open Access status
embargoedAccess
Accepted for publication
2024-02-07
Institution
Department
Awarded
Embargo end date
Additional title
Abstract
Pre-oriented poly (4-methyl-1-pentene) samples were prepared by the die drawing process. The stress whitening phenomenon induced by cavities in the different die drawn P4M1P samples during the second-stage tensile deformation was investigated at temperatures below and above Tg. At 30 °C and 50 °C, the cavitation process near yield point is influenced by the fraction of unoriented crystalline phase in pre-oriented samples. Cavities originate from the fracture of the crystalline skeleton at small strains were observed in the sample with a high fraction of unoriented crystalline phase. At high deformation temperature, the small strain cavities were suppressed and the cavitation processes in all die drawn samples are due to the failure of the highly oriented fibrillar network caused by the breaking of the load-bearing interfibrillar/microfibrillar tie molecule chains.
Version
Accepted Manuscript
Citation
Han C, Lyu D, Lu Y, et al (2024) Cavitation in die drawn poly(4-methyl-1-pentene) during second-stage tensile deformation. Polymer. 296: 126782
Link to publisher’s version
Link to published version
Link to Version of Record
Type
Article