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Biodegradable PLA-based Biocomposites with Spent Coffee Grounds as Degradation Accelerator : Hydrolytic Degradation and Characterization Research

첫 페이지 보기
  • 발행기관
    한국포장학회 바로가기
  • 간행물
    한국포장학회지 KCI 등재 바로가기
  • 통권
    Vol. 28 No. 2 (2022.08)바로가기
  • 페이지
    pp.89-95
  • 저자
    Youngsan Kim, Daekyu Lim, Sangwoo Kwon, Hyunho Jang, Su-il Park
  • 언어
    영어(ENG)
  • URL
    https://www.earticle.net/Article/A416719

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원문정보

초록

영어
The goal of this study was to evaluate the effect of spent coffee grounds (SCG) biofiller on the morphological, thermal, mechanical and hydrolytic degradation characteristics of poly(lactic acid) (PLA) based biocomposites. The PLA-based biocomposite films were fabricated by using a high-viscosity kneading and hot-pressing machine. The PLA/SCG biocomposites were analyzed with SEM, DSC, TGA, UTM and hydrolytic degradation test. Aggregation in the PLA matrix is a result of increasing SCG concentrations. In the thermal properties, it was described that the cold crystallization temperature (Tcc) decreased as SCG was added to PLA. When SCG was incorporated to PLA, the degradation onset temperature (Tonset) revealed a diminish. The elastic modulus increased while tensile strength of PLA diminished as SCG was applied. Through hydrolysis analysis, the decomposition of PLA was accelerated with the addition of SCG. This research confirmed the possibility of devloping an eco-friendly packaging material with high degradability as SCG hasten the breakdown of PLA.

목차

Abstract
Introduction
Materials & Methods
1. Materials
2. Sample preparation
3. Methods
Results & Discussion
1. Morphology analysis
2. Thermal properties
3. Mechanical properties
4. Hydrolytic degradation test
Conclusions
Acknowledgement

키워드

Poly(lactic acid) Spent coffee grounds Hydrolytic degradation Accelerate

저자

  • Youngsan Kim [ Department of Packaging, and Logistics, Yonsei University ] Corresponding author
  • Daekyu Lim [ Department of Packaging, and Logistics, Yonsei University ]
  • Sangwoo Kwon [ Department of Packaging, and Logistics, Yonsei University ]
  • Hyunho Jang [ Department of Packaging, and Logistics, Yonsei University ]
  • Su-il Park [ Department of Packaging, and Logistics, Yonsei University ]

참고문헌

자료제공 : 네이버학술정보

간행물 정보

발행기관

  • 발행기관명
    한국포장학회 [Korea Society Of Packaging Science & Technology]
  • 설립연도
    1994
  • 분야
    공학>기타공학
  • 소개
    포장기술의 학문적인 발전을 도모하고 국내포장산업의 기술수준 제고를 위하여 선진포장기술 유입의 창구역할을 함

간행물

  • 간행물명
    한국포장학회지 [Journal of Korea Society of Packaging Science & Technology]
  • 간기
    연3회
  • pISSN
    1226-0207
  • 수록기간
    1994~2025
  • 등재여부
    KCI 등재
  • 십진분류
    KDC 530 DDC 620

이 권호 내 다른 논문 / 한국포장학회지 Vol. 28 No. 2

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