文献类型：期刊文献

英文题名：Surface properties of different natural precious decorative veneers by plasma modification

作者：Peng, Xiaorui[1] Zhang, Zhankuan[1]

第一作者：彭晓瑞

通信作者：Zhang, ZK[1]

机构：[1]Chinese Acad Forestry, State Forestry Adm, Key Lab Wood Sci & Technol, Res Inst Wood Ind, Summer Palace East Small Off 2, Beijing 100091, Peoples R China

年份：2019

卷号：77

期号：1

起止页码：125-137

外文期刊名：EUROPEAN JOURNAL OF WOOD AND WOOD PRODUCTS

收录：;EI(收录号：20184105911436);Scopus(收录号：2-s2.0-85054307334);WOS:【SCI-EXPANDED(收录号:WOS:000455238400012)】；

基金：The authors thank for the financial support from the National Key Research and Development Plan of the 13th five-year plan, and the Forestry Resource Cultivation and Utilization Technology Innovation, special emphasis of China 2016YFD0600702; the National Natural Science Foundation of China (Beijing, China; Grant No. 31800490).

语种：英文

外文关键词：Contact angle - Dielectric devices - Dielectric materials - Etching - Plasma applications - Scanning electron microscopy - Surface properties - Surface roughness - Veneers - X ray photoelectron spectroscopy

摘要：Five kinds of typical natural precious decorative veneer rosewood, teak, black walnut, northeast China ash and red oak were treated by plasma at different discharge powers and speeds. The surface property changes of the treated and untreated wood were studied via contact angle, scanning electron microscopy (SEM), and X-ray photoelectron spectroscopy (XPS) analyses. The measurements showed that the dielectric barrier discharge (DBD) plasma could improve the surface wettability of all five kinds of natural precious decorative veneer, and improvement effects mainly depended on the discharge power and feeding speed. The SEM results showed that the DBD plasma gave remarkable etching on the decorative veneer surface and increased surface roughness. When the feeding speed decreased, the etching was heavier. The XPS results indicated that the carbon element content decreased, while the oxygen element increased. The O/C ratio concentration reached a balance with a higher discharge power, and many carboxyl groups were formed. It was found that the contact angle of teak decorative sliced veneer had the smallest drop and the element ratio of O/C decreased with DBD plasma treatment.