期刊
PACKAGING TECHNOLOGY AND SCIENCE
卷 20, 期 6, 页码 393-402出版社
JOHN WILEY & SONS LTD
DOI: 10.1002/pts.767
关键词
paperboard; water resistance; PLA; coating
资金
- Ministry of Education, Science & Technology (MoST), Republic of Korea [E070200] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
- National Research Foundation of Korea [R01-2003-000-10389-0, mostR01-2002-000-00154-0] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
Poly(lactide) (PLA)-coated paperboards (PB) were prepared, and the effect of coating for improving water resistance of paperboard used for corrugated box liners was tested. Surface of paperboards became smoother through PLA coating, and their thickness and weight of coating increased depending on the concentration of the coating solution. Tensile strength of paperboard decreased, while elongation at break (E) increased after PLA coating. All water barrier properties tested, such as water vapour permeability (WVP), water absorptiveness (WA) and contact angle (CA) of water drop, indicated that water resistance of paperboard was improved through surface coating with PLA. WVP decreased from 4.8 to 25.5 times, and WA decreased from 11.9 to 17.9 times depending on the PLA concentration. The increase in water resistance of PLA-coated paperboards was due to the hydrophobicity of PLA, which was proven through CA measurement. CA determined by both static and dynamic methods demonstrated the increase in initial CA of PLA-coated paperboards, indicating an increased hydrophobicity of surface. All test results indicated that the optimum concentration of coating solution for improving water resistance of paperboard was 3 w/v % of PLA soulution. Copyright (C) 2007 John Wiley & Sons, Ltd.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据