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2025 Vol.57, Issue 6 Preview Page

Original Paper

Enhancement of Mechanical and Surface Properties of Composite Sheets Prepared Using Spent Mushroom Substrate

버섯 폐배지를 활용한 복합시트의 강도 및 표면 특성 향상

Seungmin Han1
,
Yoon-hyuck Choi1
,
Wanhee Im2†
,
Jae-Hun Jung3
,
Cho-Hyun Jeon4
,
Jiyeon Oh5
,
Sangsu Lee5
한 승민1
,
최 윤혁1
,
임 완희2†
,
정 재훈3
,
전 초현4
,
오 지연5
,
이 상수5
1Department of Forest Products and Engineering, College of Agriculture, Life & Environment Science, Chungbuk National University
2Department of Wood and Paper Science, College of Agriculture, Life & Environment Science, Chungbuk National University
3Industry-Research Cooperation and Development Headquarters, Korea Textile Development Institute
4Growth Strategy Team, Future Strategy Headquarters, Korea Textile Development Institute
5Vegan Leather Task Force, Industry-Research Cooperation and Development Headquarters, Korea Textile Development Institute
1충북대학교 임산공학과, 대학원생
2충북대학교 목재종이과학과, 교수
3한국섬유개발연구원 산연협력개발본부, 본부장
4한국섬유개발연구원 미래전략본부 성장전략팀, 팀장
5한국섬유개발연구원 산연협력개발본부 비건레더TF, 연구원
†Corresponding Author: E-mail: iwh1009@cbnu.ac.kr (Address: Department of Wood and Paper Science, College of Agriculture, Life & Environment Science, Chungbuk National University, Cheongju, 28644, Republic of Korea)
30 December 2025. pp. 121-129
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Abstract

Herein, composite sheets were fabricated using wood pulp and spent mushroom substrate (SMS). The effects of cationic polyelectrolytes, such as cationic polyacrylamide and cationic starch, and surface sizing on the properties of these sheets were examined. The addition amount and sequence of cationic polyelectrolytes were varied to enhance the properties of composite sheets. The tensile index of the sheets increased upon adding cationic polyelectrolytes into the pulp/SMS mixture stock compared with that under other conditions. In addition, the smoothness and tensile index of the sheets improved upon reducing the particle size of the SMS from 65 to 38 µm owing to uniform particle dispersion and enhanced fiber–particle bonding area in the composite sheets. These properties also enhanced after surface sizing under all preparation conditions. Confocal laser scanning microscopy (CLSM) images confirmed that smaller SMS particles exhibited higher surface retention on the composite sheets than larger particles.

Keywords
Spent mushroom substrate
cationic additives
composite sheet
surface sizing
mechanical and surface properties
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Information
  • Publisher :Korea Technical Association of The Pulp and Paper Industry
  • Publisher(Ko) :한국펄프종이공학회
  • Journal Title :Journal of Korea TAPPI
  • Journal Title(Ko) :펄프종이기술
  • Volume : 57
  • No :6
  • Pages :121-129
  • Received Date : 2025-11-25
  • Revised Date : 2025-12-04
  • Accepted Date : 2025-12-04
  • DOI :https://doi.org/10.7584/JKTAPPI.2025.12.57.6.121
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