林业工程学报2018，Vol.3Issue(3)：149-154,6.DOI:10.13360/j.issn.2096-1359.2018.03.024
射流等离子体处理对热处理材漆膜附着力的影响
Effects of N2 plasma treatment on properties of thermal-treated wood
摘要
Abstract
Color is the characteristic of human visual perception, which affects the value of wood products. The color of wood surface can be changed when the wood is placed under a relatively high temperature for several hours. In this process, as the color changes, the dimensional stability also changes apparently. Apart from all described above, thanks to the chemical reaction that happens in the thermal-treatment period, the performance of finishing is affected, which is attributed to the fact that the hydrophilicity of wood surface decreases considerably. To solve the problem, discharge plasma is a useful method. In this study, the effects of different plasma treatment heights and different treat-ment time duration on the properties of the films were investigated by nitrogen jet. The effects of different treatment conditions on the properties of the treated materials were analyzed. And the best plasma treatment parameters were ob-tained in this experiment to improve the performance of larch wood film. It is found that, after the nitrogen jet treat-ment, the samples show a better water-wetted property, which can be shown by the results of the contact angle test. The results show that, with the decrease of the height of the plasma treatment and the prolonging of the treatment time, the loss rate of the film is reduced and the performance of the film is improved. The optimum process time of the film is improved to be 20 s, with a plasma treatment height of 15 mm. The introduction of a large number of hy-drophilic groups such as amino groups, hydroxyl groups, carbonyl groups and carboxyl groups during the plasma treatment is the essential reason for the improvement of the performance of the treated film. The use of this method, namely, using plasma to treat wood that was heat-treated, can greatly enhance its film performance, thereby impro-ving product appearance and increasing its marketing value.关键词
热处理材/等离子体/质量损失率/亲水性基团/漆膜性能Key words
thermal-treated wood/plasma/loss rate of the weight/hydrophilic group/film properties分类
农业科技引用本文复制引用
马伟,郭明辉,龚新超,李凤龙..射流等离子体处理对热处理材漆膜附着力的影响[J].林业工程学报,2018,3(3):149-154,6.基金项目
"十二五"国家科技支撑计划(2015BAD14B0501). （2015BAD14B0501）
