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作 者:李权[1,2] 林金国[2] 齐文玉[2] 柯丽丽[2] 林加志
机构地区:[1]凯里学院,贵州凯里556011 [2]福建农林大学材料工程学院,福建福州350002
出 处:《浙江林业科技》2017年第5期66-68,共3页Journal of Zhejiang Forestry Science and Technology
基 金:国家自然科学基金项目(31760191);福建省财政厅科研基金资助项目"进口木材特性与鉴别关键技术研究与推广"(K8115004A);贵州省高校优秀科技创新人才奖励计划(黔教合KY字﹝2015﹞508)
摘 要:测定分析了筒状非洲楝Entandrophragma cylindricum,古夷苏木Guibourtia tessmannii和水曲柳Fraxinus mandschurica木材醇酸清漆涂饰前后表面视觉性质的差异。结果表明,涂饰处理降低了3种木材表面的明度(L*)和红绿轴色品指数(a*)值,其中,古夷苏木的L*变化差异最大,明度降低明显;水曲柳的红绿轴色品指数差(Δa*)绝对值最大,相比处理前更偏向绿色;3种木材透明涂饰后的黄蓝轴色品指数(b*)均有所升高,黄蓝轴色品指数差(Δb*)绝对值由大到小分别为水曲柳>古夷苏木>筒状非洲楝,数值越大越趋于黄色;总体色差(ΔE*)变化差异不大,涂饰对3种木材的总体色差影响不明显。Determinations were conducted on visual physics magnitude of Entandrophragma cylindricum, Guibourtia tessmannii and Fraxinus mandschurica wood before and after painting alkyd varnish. The results show that painting reduced the luminance (L*) and the chrominance (a*) of tested wood specimen, the biggest change L* was specimen of G. tessmannii wood with obvious decrease of luminance. The absolute value (Δa*) of F. mandschurica wood was the largest, greener than that of untreated one. The chrominace (b*) of three kinds of wood specimen increased after painting, and the absolute Δb* was ordered by specimen of F.mandschurica 〉 G. tessmannii 〉 E. cylindricum. Chrominance aberration (ΔE*) of tested wood specimen had little difference before and after painting.
关 键 词:筒状非洲楝 古夷苏木 水曲柳 醇酸清漆 涂饰 木材表面 视觉性质
分 类 号:S781[农业科学—木材科学与技术]
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