Recycled PET-Based Acoustic Films Reinforced with Cockle Shell Powder: Fabrication and Performance Evaluation 


Vol. 62,  No. 5, pp. 297-303, Oct.  2025
10.12772/TSE.2025.62.297


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  Abstract

Introduction of natural mineral fillers into recycled polymer matrices has gained increasing interest due to their potential in developing eco-friendly functional materials. In this study, cockle shell powder, a calcium carbonate-rich biowaste, was incorporated into recycled polyethylene terephthalate (rPET) films to fabricate sound-absorbing composites. Cockle shells were pulverized and characterized in terms of morphology, crystal structure, and particle size. The rPET/cockle shell films were prepared via casting and nonsolventinduced phase separation (NIPS) method. The addition of cockle shell filler improved the sound absorption performance of the films, particularly at higher frequencies. The composite containing 6 wt% cockle shell exhibited the highest sound absorption coefficient while maintaining mechanical integrity. Although the tensile modulus slightly decreased with increasing filler content, the optimized formulation showed a good balance between acoustic performance and mechanical strength. Overall, these results suggest that cockle shell powder can serve as a promising sustainable filler for acoustic applications using recycled polymer matrices.

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  Cite this article

[IEEE Style]

양하진, 이종윤, 박찬욱, 서재식, 이원준, "Recycled PET-Based Acoustic Films Reinforced with Cockle Shell Powder: Fabrication and Performance Evaluation," Textile Science and Engineering, vol. 62, no. 5, pp. 297-303, 2025. DOI: 10.12772/TSE.2025.62.297.

[ACM Style]

양하진, 이종윤, 박찬욱, 서재식, and 이원준. 2025. Recycled PET-Based Acoustic Films Reinforced with Cockle Shell Powder: Fabrication and Performance Evaluation. Textile Science and Engineering, 62, 5, (2025), 297-303. DOI: 10.12772/TSE.2025.62.297.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)