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Characteristics of Thermomechanical Pulps Made of Russian Spruce and Larix, and Myanmar Bamboo

러시아산 가문비와 낙엽송, 그리고 미얀마산 대나무로 제조한 열기계펄프 특성 연구

  • Lee, Ji-Young (Department of Environmental Materials Science, Institute of Agriculture & Life Science, Gyeonsang National University) ;
  • Kim, Chul-Hwan (Department of Environmental Materials Science, Institute of Agriculture & Life Science, Gyeonsang National University) ;
  • Nam, Hyegeong (Department of Environmental Materials Science, Institute of Agriculture & Life Science, Gyeonsang National University) ;
  • Park, Hyunghun (Department of Environmental Materials Science, Institute of Agriculture & Life Science, Gyeonsang National University) ;
  • Kwon, Sol (Department of Environmental Materials Science, Institute of Agriculture & Life Science, Gyeonsang National University) ;
  • Park, Dong-Hun (Department of Environmental Materials Science, Institute of Agriculture & Life Science, Gyeonsang National University)
  • 이지영 (경상대학교 농업생명과학대학 환경산림과학부 임산공학과) ;
  • 김철환 (경상대학교 농업생명과학대학 환경산림과학부 임산공학과) ;
  • 남혜경 (경상대학교 농업생명과학대학 환경산림과학부 임산공학과) ;
  • 박형훈 (경상대학교 농업생명과학대학 환경산림과학부 임산공학과) ;
  • 권솔 (경상대학교 농업생명과학대학 환경산림과학부 임산공학과) ;
  • 박동훈 (경상대학교 농업생명과학대학 환경산림과학부 임산공학과)
  • Received : 2015.09.30
  • Accepted : 2015.10.30
  • Published : 2016.01.25

Abstract

Three fiber sources including Russian spruce (Picea jezoensis) and larix (Larix leptolepis), and Myanmar bamboo (Phyllostachys bambusoides) for thermomechanical pulp were explored to replace domestic pine (Pinus densiflora) pulp that has some limitations in an aspect of supply and pitch trouble. Thermomechanical pulps were manufactured under the identical condition, and then compared with their representative pulp properties and pulping process. Both Russian larix and Myanmar bamboo contained large amounts of extractives that would negatively affect mechanical pulping processes. Russian spruce showed the least contents in shives and pitch. Russian spruce and domestic pine reached an optimum freeness level within a short pulp processing time, which consumed less amount of refining energy compared to larix and bamboo. In particular, the spruce wood showed the highest brightness level which might lead to a less consumption of bleaching chemicals. It was expected that Russian spruce could be replaced with the domestic pine wood in respect of both pulping process and pulp quality.

국내에서는 열기계펄프 생산을 국내산 소나무(Pinus densiflora)만을 사용하고 있다. 가격적 측면에서 장점이 있지만 지속적인 수급이나 피치와 같은 문제점이 내재되어 있기 때문에 주원료를 대체할 수 있는 방안이 강구되어야 한다. 열기계펄프의 원료로서 국내산 소나무를 대체할 수 있는 수종으로 러시아산 가문비(Picea jezoensis), 러시아산 낙엽송(Larix leptolepis), 그리고 미얀마산 대나무(Phyllostachys bambusoides)를 선정하여 열기계펄프 특성을 분석하였다. 이들 원료들은 동일한 조건 하에서 열기계펄프로 제조되었다. 러시아산 낙엽송과 미얀마산 대나무는 펄프화 공정에 부정적인 영향을 미칠 수 있는 추출물 함량이 과량 검출되었다. 러시아산 가문비는 다른 수종들과는 달리 shive와 피치의 함량이 가장 적게 정량되었고, 리파이닝 에너지도 국내산 소나무에 수준으로 매우 적게 소모되었다. 열기계펄프의 백색도면에서는 가문비가 가장 높은 백색도를 나타내어 표백 약품의 절감에 기여할 수 있을 것으로 기대되었다. 결론적으로 러시아산 가문비가 공정 에너지 절감과 펄프 품질 향상 측면에서 국내산 소나무를 대체할 수 있는 가장 우수한 수종인 것으로 나타났다.

Keywords

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