- 습부압착에 따른 수초지의 치수안정성과 침지신장성의 변화
- ㆍ 저자명
- 박창순,이진호,길정하,박종문,Park. Chang-Soon,Lee. Jin-Ho,Kil. Jung-Ha,Park. Jong-Moon
- ㆍ 간행물명
- 펄프 종이기술
- ㆍ 권/호정보
- 2011년|43권 4호|pp.31-39 (9 pages)
- ㆍ 발행정보
- 한국펄프종이공학회
- ㆍ 파일정보
- 정기간행물| PDF텍스트
- ㆍ 주제분야
- 기타
One of the main drawbacks of wood fibers based composite materials are their tendency to swell due to moisture uptake in wet and moist environments. The main contribution to the hygroexpansion usually comes from the hydrophilic wood fibers. Recent trend toward the high speed printing, copying, and precision converting precesses demands a high level of dimensional stability under various environmental conditions. The purpose of this study was to investigate the dimensional stability of softwood bleached kraft pulp handsheets depending on wet pressing conditions. By increasing the number of wet pressing, dimensional stability was decreased because of increased fiber-to-fiber bonding. Hygroexpansion of handsheets had a linear relationship with the relative bonded area and equilibrium moisture contents. Dip elongation was decreased when the number of wet pressing was increased because of increased fiber-to-fiber bonding to resist low load in water.