Research on the Feasibility of Polyethylene terephthalate Foam Used in Wind Turbine Blades

Haiming Liu, Maxwell Fordjour Antwi‐Afari, Haoyang Mi, Chuntai Liu

Research output: Contribution to journalArticlepeer-review


The sandwich foam materials of wind turbine blades are mainly polyvinyl chloride (PVC) and styrene-acrylonitrile (SAN) foams due to their good mechanical properties. However, PVC foam is unrecyclable and not resistant to high temperature conditions, whilst SAN foam is more expensive than PVC foam. Polyethylene terephthalate (PET) has irreplaceable advantages than both PVC and SAN foams because of its better mechanical performance, fantastic heat-resistant, low cost, and environmental friendliness (100 % recyclability). In this paper, the mechanical properties, thermal stability, resin uptake, and cellular morphology of PET T92, PVC H60, and SAN T400 foams were discussed. The results showed that the mechanical properties of T92 were equivalent to the existing H60 and T400, and even exceed their properties. It was found that the thermal stability of T92 was better than H60 and T400 under the same high temperature. Moreover, the pore of T92 was more uniform and regular than H60 and T400. Furthermore, the overall cost of T92 was lower than H60 and T400. The findings suggest that PET foam with a density of 100 kg/m3 can completely replace PVC 60 kg/m3 and SAN 71 kg/m3 foams from the perspective of mechanical performance, cost, thermal stability, and environmental protection.
Original languageEnglish
Article numbere13956
JournalEnvironmental Progress and Sustainable Energy
Issue number1
Early online date19 Jul 2022
Publication statusPublished - 1 Jan 2023

Bibliographical note

This is the peer reviewed version of the following article: Liu, H., Antwi-Afari, M.F., Mi, H. and Liu, C. (2022), Research on the Feasibility of Polyethylene terephthalate Foam Used in Wind Turbine Blades. Environ Prog Sustainable Energy. Accepted Author Manuscript e13956, which has been published in final form at This article may be used for non-commercial purposes in accordance with Wiley Terms and Conditions for Use of Self-Archived Versions. This article may not be enhanced, enriched or otherwise transformed into a derivative work, without express permission from Wiley or by statutory rights under applicable legislation. Copyright notices must not be removed, obscured or modified. The article must be linked to Wiley’s version of record on Wiley Online Library and any embedding, framing or otherwise making available the article or pages thereof by third parties from platforms, services and websites other than Wiley Online Library must be prohibited


  • General Environmental Science
  • Waste Management and Disposal
  • Water Science and Technology
  • General Chemical Engineering
  • Renewable Energy, Sustainability and the Environment
  • Environmental Chemistry
  • Environmental Engineering


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