热处理温度对枫桦材色及内含物的影响  

Influence of Heat Treatment on Betula costata's Discoloration and Extract Content

作　　者：曹燕燕[1] 高建民[1] 崔新宇[1] 母军[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,北京100083

出　　处：《木材工业》2010年第5期42-44,共3页China Wood Industry

基　　金：国家自然科学基金项目(30671633)

摘　　要：研究不同热处理温度条件下,枫桦锯材心、边材的变色情况,并进行视觉物理参数分析和紫外可见光谱分析。结果表明:随着温度的升高和时间的延长,枫桦综合色差值不断增加,颜色向红色和深色方向发展;其原因在于部分酚羟基被氧化,导致枫桦颜色加深。The authors investigated changes in Betula costata＇s color under different heat-treatment conditions using ultraviolet visible spectroscopy.The results showed the temperature and heat treatment duration were the two major factors for wood discoloration.The authors also observed that the Betula costata（ΔE＊） color difference increased,which caused the treated lumber color to become redder and darker,with increasing temperature and duration.They also noted that the oxidized phenolic hydroxyl group could cause wood discoloration.

关 键 词：热处理 枫桦 木材变色 

分 类 号：S781[农业科学—木材科学与技术] TS6[农业科学—林学]