| 氢氧化钠预处理对木材漂白促进作用的研究 |
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| 引用本文： | 陈玉和,黄文豪,常德龙,胡伟华.氢氧化钠预处理对木材漂白促进作用的研究[J].林产化学与工业,2000,20(1):52-56. |
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| 作者姓名： | 陈玉和 黄文豪 常德龙 胡伟华 |
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| 作者单位： | 国家林业局泡桐研究开发中心,河南郑州,450003 |
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| 基金项目： | 原林业部重点攻关项目! 90 0 5 0 5《泡桐木材色斑预防和消除技术的研究》的部分内容 |
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| 摘 要： | 用ＮａＯＨ的稀溶液处理泡桐木材，观察桐木渗透性、木材颜色的变化不碱液对泡桐木材漂泊白效果的促进作用进行了研究。结果表明ＮａＯＨ稀溶液对木材颜色没有明显损害作用，能显著提高桐木的渗透性，促进木材漂白效果。泡桐木材经过２ｄ的０．３％ＮａＯＨ稀溶液预处理，再经２％的硫代硫酸钠漂白处理３ｄ，半年老化后测色，桐木表面和内部的白有度比未处理材显著提高，色差显著降低。
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| 关 键 词： | 氢氧化钠 预处理 泡桐木材 漂白 |
| 文章编号： | 0253-2417(2000)01-0052-05 |
STUDY ON PROMOTING EFFECTS OF NaOH PRETREATMENT ON WOOD BLEACHING |
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| CHEN Yu-he,HUANG Wen-hao,CHANG De-long,HU Wei-hua.STUDY ON PROMOTING EFFECTS OF NaOH PRETREATMENT ON WOOD BLEACHING[J].Chemistry & Industry of Forest Products,2000,20(1):52-56. |
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| Authors: | CHEN Yu-he HUANG Wen-hao CHANG De-long HU Wei-hua |
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| Abstract: | It was studied in this paper that the effects of aqueous alkali on the penetration and the color of paulownia wood after soaking in NaOH aqueous solution.It was also investigated the promoting effects of this solution on wood bleaching.The result showed that NaOH could increase wood penetration and bleaching effect without damage to wood color.After soaking in 0.3% NaOH aqueous solution for 2 days,the samples were treated in 2% Na 2S 2O 4 for 3 days.Half a year later the lightness and whiteness of these samples were obviously higher than the untreated samples,and the chromatism was lower than that of the untreated samples. |
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| Keywords: | NaOH pretreatment paulownia wood bleaching |
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