쇄연장제 용융 혼합이 재활용 PET 플레이크의 인장성질에 미치는 영향 


61권  2호, pp. 81-89, 4월  2024
10.12772/TSE.2024.61.081


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  요약

In this study, recycled PET (r-PET) flakes were blended with pyromellitic dianhydride (PMDA) and poly(styrene-co-glycidyl methacrylate-co-methyl methacrylate) (ADR-4400) as chain extenders in the melt state at varying amounts, reaction times and temperatures. The rheological and mechanical properties of the r-PET/PMDA and r-PET/ADR-4400 were analyzed to confirm the effect of the reaction conditions. The molecular weight of recycled PET flakes increases with the addition of chain extenders and it was confirmed that PMDA, a low molecular weight chain extender, increased the molecular weight more than ADR-4400, a high molecular weight chain extender. The tensile strength of recycled PET increases due to the chain extension reaction, with a maximum value at an addition level of 0.5 phr. The effect of reaction temperature on tensile strength shows that ADR-4400 has a maximum value at 270 oC, while PMDA tends to decrease with increasing reaction temperature. For reaction time, ADR-4400 shows a maximum value at 5 minutes, while PMDA shows an increase with longer reaction time. The initial modulus is lower for ADR-4400 than for PMDA, which is attributed to the decrease in crystallinity and the change in entropy. A concentration of 0.5 phr, a reaction temperature of 270 °C, and a reaction time of 5 minutes were found to be the optimal conditions. Both PMDA and ADR-4400 in a 5:5 mixing ratio can be used to improve tensile strength and minimize the decrease in Young’s modulus.

  통계
2022년 11월부터 누적 집계
동일한 세션일 때 여러 번 접속해도 한 번만 카운트됩니다. 그래프 위에 마우스를 올리면 자세한 수치를 확인하실 수 있습니다.
  논문 참조

[IEEE Style]

남준식, 정창성, 이재만, 오태환, "Effect of Chain Extender Melt Mixing on Tensile Properties of Recycled PET Flakes," Textile Science and Engineering, vol. 61, no. 2, pp. 81-89, 2024. DOI: 10.12772/TSE.2024.61.081.

[ACM Style]

남준식, 정창성, 이재만, and 오태환. 2024. Effect of Chain Extender Melt Mixing on Tensile Properties of Recycled PET Flakes. Textile Science and Engineering, 61, 2, (2024), 81-89. DOI: 10.12772/TSE.2024.61.081.

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pISSN : 1225 - 1089
eISSN : 2288 - 6419

한국연구재단 우수등재학술지 유지 (2022년)