高温热处理对毛竹材颜色和平衡含水率的影响  

Effects of Heat Treatment on Color and Equilibrium Moisture Content of Bamboo Culm

作　　者：南博[1,2] 王书强[1] 李延军[1,2] 殷丽萍[1] 黄成建[1] 王丽[1,2] 

机构地区：[1]浙江农林大学工程学院,浙江临安311300 [2]浙江省木材科学与技术重点实验室,浙江临安311300

出　　处：《浙江林业科技》2015年第3期57-60,共4页Journal of Zhejiang Forestry Science and Technology

基　　金：浙江省自然科学基金项目(LZ13C160003);浙江省科技厅资助项目(2013C14006);国家级大学生创新创业计划项目(201310341005);大学生科技创新推广项目(2014R412043)

摘　　要：以毛竹（Phyllostachys heterocycla cv.pubescens）材为研究对象,探讨热处理温度（100~200℃）和时间（2h、3h）对去青去黄后的毛竹材表面颜色和平衡含水率的影响规律。结果表明：热处理能使毛竹材表面颜色均匀加深,随着处理温度和时间的增加,毛竹材的明度（L＊）、黄蓝色品指数（b＊）和平衡含水率显著下降,红绿色品指数（a＊）先上升后下降,总体色差（？E＊）显著上升,说明热处理后竹材表面颜色逐渐由原色过度到棕褐色;在本研究范围内,通过高温热处理毛竹材的明度、黄蓝色品指数、红绿色品指数最大降低56.45%、54.34%、37.40%,平衡含水率降低46.57%。Experiments of heat treatment on bamboo （Phyllostachys heterocycla cv. pubescens） culm were conducted with different temperatures and durations. The results showed that heat treatment could make the tested culm evenly deepen. Increase of temperature and duration of the treatment had negative relation with lightness （L＊）, yellow-blue value（b＊） and equilibrium moisture content（EMC） of culm, but positive then negative with red-green value （a＊）, and positive with abermtion（AE＊）. This indicated that the color of the heat-treated bamboo became darker and darker from primary color. The experiment concluded that thermal treatment of bamboo culm could decrease lightness, yellow-blue value, red-green value and EMC by 56.45%, 54.34%, 37.40% and 46.57%.

关 键 词：毛竹材 热处理 表面颜色 平衡含水率 

分 类 号：S718.29[农业科学—林学]