Lightweight polyethylene terephthalate bead foams with good interfacial adhesion and thermal insulation performance fabricated by supercritical carbon dioxide secondary foaming strategy

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review

1 Scopus Citations
View graph of relations

Author(s)

  • Senlin Yang
  • Xiangfeng Ren
  • Dong Han
  • Zengzeng Wang
  • Dawei Xu

Related Research Unit(s)

Detail(s)

Original languageEnglish
Article numbere55072
Journal / PublicationJournal of Applied Polymer Science
Volume141
Issue number10
Online published20 Dec 2023
Publication statusPublished - 10 Mar 2024

Abstract

This paper reported the novel supercritical carbon dioxide (scCO2) secondary foaming and molding strategy to prepare the thermal-insulation polyethylene terephthalate (PET) bead foam part with good interfacial adhesion and high expansion ratio. The incorporation of porous structure could effectively enhance the blowing agent solubility and fabricate the system viscosity difference, which contributed to the expansion and further welding of the expanded PET beads. Under the optimum foaming conditions, PET bead foam parts with excellent comprehensive performance were successfully prepared by molding method in the confined space via scCO2 secondary foaming, and the corresponding welding mechanism of PET beads was further investigated. The obtained foam parts possessed good tensile and compressive properties, reaching 1.03 and 1.27 MPa (at 20% strain) respectively. Besides, the foam part exhibited the low thermal conductivity of 0.060 Wm−1 K−1, which confirmed the improvement of thermal insulation performance owing to the high expansion ratio. © 2023 Wiley Periodicals LLC.

Research Area(s)

  • blowing agent solubility, polyethylene terephthalate, porous structure, scCO2 secondary foaming

Citation Format(s)

Lightweight polyethylene terephthalate bead foams with good interfacial adhesion and thermal insulation performance fabricated by supercritical carbon dioxide secondary foaming strategy. / Yang, Senlin; Ma, Wenjie; Ren, Xiangfeng et al.
In: Journal of Applied Polymer Science, Vol. 141, No. 10, e55072, 10.03.2024.

Research output: Journal Publications and ReviewsRGC 21 - Publication in refereed journalpeer-review