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纳米改性木器涂料对人造板VOC光催化降解研究

发表时间:2012-10-15  浏览量:1528  下载量:727
全部作者: 刘玉,朱晓冬
作者单位: 东北林业大学材料科学与工程学院
摘 要: 为进一步提高水性聚氨酯的环保性能,结合纳米TiO2粒子的特异性能,制备了具有光催化降解人造板有机污染物特性的环保型水性聚氨酯木器涂料。将纳米粒子与水性聚氨酯复合,通过测试表面油漆涂饰人造板的挥发性有机化合物(volatile organic compounds,VOC)释放浓度,评价不同纳米TiO2添加量、涂层厚度、光源对涂层降解VOC效率的影响。结果表明:纳米TiO2粒子仅在紫外光源条件下有较高的催化降解作用,且随着纳米粒子含量的增加,改性涂料对总挥发性有机化合物(total volatile organic compound,TVOC)的降解有所提高,而涂膜厚度的增加对提高材料光催化降解性能不明显。
关 键 词: 木材加工与人造板工艺学;人造板;挥发性有机化合物;水性聚氨酯;光催化降解
Title: Nano-modified wood coatings and its effect on VOC degradation of wood-based panels
Author: LIU Yu, ZHU Xiaodong
Organization: Material Science and Engineering College, Northeast Forestry University
Abstract: In order to improve the environmental performance of waterborne polyurethane, TiO2 were added to prepare the modified waterborne polyurethane with high volatile organic compounds (VOC) degradation properties. The nano-modified wood coatings were prepared by reacting waterborne polyurethane with TiO2. Efficiencies of VOC degradation under different TiO2 content, coating thickness and light source were calculated according to VOC concentrations of wood-based panels. The VOC degradation under UV light was higher than that of daylight, with the increasing of TiO2 content, the total volatile organic compound (TVOC) degradation of modified waterborne polyurethane was enhanced obviously, while the thickness of coatings had little effect on VOC degradation.�
Key words: wood processing and wood-based panel technology; wood-based panels; volatile organic compounds; waterborne polyurethane; photocatalytic degradation
发表期数: 2012年10月第19期
引用格式: 刘玉,朱晓冬. 纳米改性木器涂料对人造板VOC光催化降解研究[J]. 中国科技论文在线精品论文,2012,5(19):1881-1884.
 
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