预处理条件对刺槐诱发变色的影响  

Effects of pretreatment conditions on the induced discoloration of silver chain.

作　　者：高建民[1] 赵敏[1] 母军[1] 伊新双[1] 

机构地区：[1]北京林业大学材料科学与技术学院,木材科学与工程北京市重点实验室,木质材料科学与应用教育部重点实验室,100083

出　　处：《北京林业大学学报》2009年第2期114-118,共5页Journal of Beijing Forestry University

基　　金：国家自然科学基金项目(30671633)

摘　　要：该文对刺槐在3种不同预处理条件下的诱发变色结果进行了对比,并对变色前后试样的视觉物理参数、红外光谱和气相-质谱做了分析,结果表明:①刺槐的颜色可获得均匀的深褐色;②压力汽蒸条件下,刺槐的颜色更加均匀;③羟基(—OH)等助色基团在预处理条件下氧化成羰基(—CO)、酯基(—COO—)等发色基团,使刺槐的颜色加深。Induced discoloring of silver chain in three different conditions was studied in this paper.The visional physical parameters of the timber,infrared spectrum and GC-MS were conducted for each sample before and after pretreatment.Results showed that： 1） color of the timber tended to be uniform puce;2） under the condition of steam with pressure,the color of timber was much more uniform;3） hydroxyl（—OH） groups were oxidized to carbonyl（—CO）,ester（—COO—）,ester or acetone groups during inducing discoloration under the pretreatment conditions,resulting in the darker wood color.

关 键 词：刺槐 预处理条件 诱发变色 

分 类 号：S781.7[农业科学—木材科学与技术]