Effect of Core PTT Content on Mechanical Properties of PLA/PTT Sheath/Core Bicomponent Filaments 


Vol. 60,  No. 5, pp. 321-326, Oct.  2023
10.12772/TSE.2023.60.321


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  Abstract

In this study, we investigated the effects of core polytrimethylene terephthalate (PTT) content on the mechanical properties of polylactic acid (PLA)/PTT sheath/core (s/c) bicomponent filaments to optimize sheath/core ratio of the filaments. The molecular dynamics simulation of each homo polymer has been performed to predict the tensile behaviour of the polymers, respectively. The maximum PTT content was 60 wt%, which was the best composition in terms of cross-section uniformity and tensile strength. The tensile strength of PLA/PTT s/c bicomponent filaments decreased with increasing PTT content up to 50 wt% and showed the maximum at PTT content of 60wt% compared with homo PLA filaments. It is attributed that the spinning temperature was adjusted for the higher melting temperature polymer of PTT, causing decrease in melt viscosity of the sheath PLA. Hence, this leads to a less uniform cross-section for PLA/PTT s/c bicomponent filaments, having less than 60% of core PTT.

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  Cite this article

[IEEE Style]

S. H. Jang, I. S. Choi, H. D. Kim, T. H. Oh, "Effect of Core PTT Content on Mechanical Properties of PLA/PTT Sheath/Core Bicomponent Filaments," Textile Science and Engineering, vol. 60, no. 5, pp. 321-326, 2023. DOI: 10.12772/TSE.2023.60.321.

[ACM Style]

Soon Ho Jang, Ik Sung Choi, Hee Dong Kim, and Tae Hwan Oh. 2023. Effect of Core PTT Content on Mechanical Properties of PLA/PTT Sheath/Core Bicomponent Filaments. Textile Science and Engineering, 60, 5, (2023), 321-326. DOI: 10.12772/TSE.2023.60.321.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)