Elastomers and Composites

The Rubber Society of Korea (한국고무학회)
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A Concise Review of Recent Application Progress and Future Prospects for Lignin as Biomass Utilization

  • Hong, Seo-Hwa (Materials Chemistry & Engineering Laboratory, School of Polymer Science & Engineering, Dankook University) ;
  • Hwang, Seok-Ho (Materials Chemistry & Engineering Laboratory, School of Polymer Science & Engineering, Dankook University)
  • Received : 2021.08.17
  • Accepted : 2021.08.24
  • Published : 2021.09.30
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Abstract

Biomass lignin, a waste produced during the paper and bio-ethanol production process, is a cheap material that is available in large quantities. Thus, the interest in the valorization of biomass lignin has been increasing in industrial and academic areas. Over the years, lignin has been predominantly burnt as fuel to run pulping plants. However, less than 2% of the available lignin has been utilized for producing specialty chemicals, such as dispersants, adhesives, surfactants, and other value-added products. The development of value-added lignin-derived co-products should help make second generation biorefineries and the paper industry more profitable by valorizing lignin. Another possible approach towards value-added applications is using lignin as a component in plastics. However, blending lignin with polymers is not simple because the polarity of lignin molecules results in strong self-interactions. Therefore, achieving in-depth insights on lignin characteristics and structure will help in accelerating the development of lignin-based products. Considering the multipurpose characteristics of lignin for producing value-added products, this review will shed light on the potential applications of lignin and lignin-based derivatives on polymeric composite production. Moreover, the challenges in lignin valorization will be addressed.

Keywords

Acknowledgement

이 논문은 2021년도 정부(과학기술정보통신부)의 재원으로 한국연구재단의 지원을 받아 수행된 기초연구사업(No. 2021R1F1A104965211)과 경기도 지역협력 연구사업(GRRC 단국 2016-B01)에 의해 지원되었으며 이에 감사드립니다.

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