Time-dependent wettability changes on plasma-treated surfaces of unmodified and thermally modified European beech wood

被引:14
作者
Altgen, D. [1 ,2 ]
Altgen, M. [2 ]
Kyyro, S. [2 ]
Rautkari, L. [2 ]
Mai, C. [1 ]
机构
[1] Georg August Univ Gottingen, Fac Forest Sci & Forest Ecol, Wood Biol & Wood Prod, Busgenweg 4, D-37077 Gottingen, Germany
[2] Aalto Univ, Dept Bioprod & Biosyst, Sch Chem Engn, POB 11000, Aalto 00076, Finland
关键词
ATMOSPHERIC-PRESSURE; SCOTS PINE;
D O I
10.1007/s00107-020-01505-0
中图分类号
S7 [林业];
学科分类号
0829 ; 0907 ;
摘要
The wettability of a freshly cut wood surface will change over time, which is denoted as natural ageing. Water contact angle measurements indicated that the thermal modification of European beech reduces its wettability, but does not affect the rate at which the contact angle increases within a 4-week period. A plasma treatment of fresh wood surfaces enhanced the wettability and equaled the wettability properties of unmodified and thermally modified wood surfaces. The contact angle on plasma-treated wood surfaces increased faster than on unmodified wood surfaces, but a reduction in contact angle by the plasma treatment was still evident after ageing for 4 weeks.
引用
收藏
页码:417 / 420
页数:4
相关论文
共 8 条
[1]   The effect of air plasma treatment at atmospheric pressure on thermally modified wood surfaces [J].
Altgen, Daniela ;
Avramidis, Georg ;
Vioel, Wolfgang ;
Mai, Carsten .
WOOD SCIENCE AND TECHNOLOGY, 2016, 50 (06) :1227-1241
[2]   Thermally modified Scots pine and Norway spruce wood as substrate for coating systems [J].
Altgen, Michael ;
Militz, Holger .
JOURNAL OF COATINGS TECHNOLOGY AND RESEARCH, 2017, 14 (03) :531-541
[3]   Wood degradation affected by process conditions during thermal modification of European beech in a high-pressure reactor system [J].
Altgen, Michael ;
Willems, Wim ;
Militz, Holger .
EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS, 2016, 74 (05) :653-662
[4]   Impact of air-plasma treatment at atmospheric pressure on wood and wood extractives [J].
Avramidis, G. ;
Wascher, R. ;
Militz, H. ;
Vioel, W. .
INTERNATIONAL WOOD PRODUCTS JOURNAL, 2016, 7 (02) :76-79
[5]   Evolution of wood surface free energy after heat treatment [J].
Gerardin, Philippe ;
Petric, Marko ;
Petrissans, Mathieu ;
Lambert, Jacques ;
Ehrhrardt, Jean Jacques .
POLYMER DEGRADATION AND STABILITY, 2007, 92 (04) :653-657
[6]   Electron spectroscopy on plasma treated lignin and cellulose [J].
Klarhoefer, Lothar ;
Vioel, Wolfgang ;
Maus-Friedrichs, Wolfgang .
HOLZFORSCHUNG, 2010, 64 (03) :331-336
[7]   Natural surface inactivation of Scots pine and Norway spruce evaluated by contact angle measurements [J].
Nussbaum, RM .
HOLZ ALS ROH-UND WERKSTOFF, 1999, 57 (06) :419-424
[8]  
Riedl B, 2014, BIORESOURCES, V9, P4908