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Zhong, J. PETG. Encyclopedia. Available online: https://encyclopedia.pub/entry/61245 (accessed on 09 November 2026).
Zhong J. PETG. Encyclopedia. Available at: https://encyclopedia.pub/entry/61245. Accessed November 09, 2026.
Zhong, Jack. "PETG" Encyclopedia, https://encyclopedia.pub/entry/61245 (accessed November 09, 2026).
Zhong, J. (2026, October 22). PETG. In Encyclopedia. https://encyclopedia.pub/entry/61245
Zhong, Jack. "PETG." Encyclopedia. Web. 22 October, 2026.

PETG

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PETG is the glycol-modified copolyester of poly(ethylene terephthalate), in which part of the ethylene glycol is replaced by cyclohexanedimethanol, suppressing crystallisation and keeping the material transparent and melt-processable [1]. In stretched miscible blends with polyethylene naphthalate, PETG reshapes the crystallization behaviour of the stiffer partner [1]. As a reusable and biocompatible substrate it serves cell culture, an unexpected role for a packaging polyester [2]. Blending PETG with thermoplastic polyurethane yields 4D-printable shape memory parts [3]. Recycled PETG fed into additive manufacturing has been examined as a feasibility study for circular material loops [4]. 

amorphous copolyester glycol-modified polyester 4d printing shape memory recycling cell culture substrate
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References

  1. Jheng, L.C.; Yang, C.Y.; Leu, M.T.; Hsu, K.H.; Wu, J.H.; Ruan, J.; Shih, K.C. Novel impacts of glycol-modified poly(ethylene terephthalate)(PETG) to crystallization behavior of polyethylene naphthalate (PEN) within stretched miscible blends. Polymer 2012, 53, 2758-2768. [CrossRef]
  2. Vita, A.; Tiberio, F.; Sibilia, D.; Salvati, M.; Tosi, D.D.; Di Pietro, L.; Alliva, A.; Mariella, C.; Parolini, O.; Lattanzi, W. Polyethylene Terephthalate Glycol-Modified (PETG) as a Reusable and Biocompatible Substrate for Cell Culture Applications. Journal of Functional Biomaterials 2026, 17, 336. [CrossRef]
  3. da Cunha, R.B.; Brito, L.B.Q.; Agrawal, P.; Brito, G.d.F.; Mélo, T.J.A.d. 4D printing of shape memory polyethylene terephthalate glycol/thermoplastic polyurethane (PETG/TPU) blends. Journal of Manufacturing Processes 2024, 119, 596-608. [CrossRef]
  4. Bremer, M.; Janoschek, L.; Kaschta, D.; Schneider, N.; Wahl, M. Influence of plastic recycling—a feasibility study for additive manufacturing using glycol modified polyethylene terephthalate (PETG). SN Applied Sciences 2022, 4, 156. [CrossRef]
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Subjects: Engineering, Mechanical
Contributor MDPI registered users' name will be linked to their SciProfiles pages. To register with us, please refer to https://encyclopedia.pub/register : Jack Zhong
View Times: 13
Revisions: 3 times (View History)
Update Date: 06 Nov 2026
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