热处理杨木的色变研究  

作　　者：葛达章[1] 郝东恩[1] 徐永吉[1] 

机构地区：[1]南京林业大学木材工业学院

出　　处：《中国木材》2008年第2期22-24,共3页

摘　　要：为了弄清楚热处理木材表面颜色变化规律以及耐光性，本研究通过对素材和160，180，200℃4小时热处理杨木表面颜色的测量对比，得到了热处理材颜色变化规律及其耐光性，结果表明：①与未处理木材相比，热处理木材明度、红绿色品指数、黄蓝色品指数都有所增加；②随着热处理温度的升高，热处理材比对素材的色差更大；③经过180小时太阳光照射后，热处理材色变虽比素材要小的多，但仍属于大的视觉感觉范围，所以热处理材用于室外时，仍需做防光色变预处理。In order to determine the color-change regularity and light-proof of wood surface, this research obtained the results by testing and comparing the surface color of untreated wood and 4-hour heating-treated poplar wood under 160, 180 and 200℃. The results showed： （1）compared with non treated wood, heating-treated wood had a increase in brightness, red-green chromaticity index and yellow-blue chromaticity index; （2）as the temperature grew higher, heating-treated wood had a much smaller color change than untreated wood; （3） after a 180-hour sunlight shining, the color change of heating-treated wood still belonged to the large degree of visual perception, though being much smaller than untreated wood. Therefore, heating-treated wood still needs a pre-treatment of light-induced discoloration for outdoor use.

关 键 词：热处理 光变色 色差 耐光性 

分 类 号：TS75[轻工技术与工程—制浆造纸工程] TF534.2[冶金工程—钢铁冶金]