干燥条件对松木表面颜色变化的影响

IF 1.3 4区 农林科学 Q2 MATERIALS SCIENCE, PAPER & WOOD Bioresources Pub Date : 2023-12-01 DOI:10.15376/biores.19.1.656-669
A. Suchta, J. Barański, Tatiana Vilkovská, I. Klement, Peter Vilkovský
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引用次数: 0

摘要

本文研究了干燥工艺和干燥参数对松材表面颜色变化的影响。三种预定的工艺条件(模式),温和,正常,和密集,进行了研究。实验采用Gdańsk理工大学设计的半工业规模干燥机进行,装载能力为0.55 m3。干燥过程适用于生长在波兰波美拉尼亚地区北部的松木。试样的选择考虑了生长环的径向角。在每种干燥模式下,分别对尺寸(厚度、宽度、长度)为0.03 m、0.2 m和1.5 m的25块木材进行干燥。采用归一化CIELAB方法测定木材表面干燥后的总颜色变化(ΔE)和干燥前后的颜色饱和度(h*)。结果表明,随着干燥过程的加剧,松材表面的颜色变化也随之增加。然而,在密集干燥工艺条件下,干燥后的标准化木材质量仍在标准范围内。强化干燥工艺条件的应用显著改变了所得物料的表面颜色,同时显著缩短了干燥过程的持续时间。
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The impact of drying conditions on the surface color changes of pine wood
The article presents the impact of drying process and selected parameters on the color changes on the surface of pine wood (Pinus sylvestris L.). Three predetermined process conditions (modes), mild, normal, and intensive, were investigated. The experiments were conducted using a semi-industrial scale dryer designed at the Gdańsk University of Technology with a loading capacity of 0.55 m3. The drying process was applied to pine wood grown in the northern part of Pomeranian region in Poland. The specimens were selected taking into consideration the radial angle of the growth rings. During each drying mode, 25 pieces of wood with dimensions (thickness, width, length) of 0.03 m, 0.2 m, and 1.5 m, respectively, were dried. The total color change (ΔE) after drying process and color saturation (h*) before and after drying processes of the wood surface was determined using the normalized CIELAB methods. The obtained results indicated that the color change of the pine wood surface increased simultaneously with the intensification of the drying process. However, the normalized wood quality after drying under intensive drying process conditions remained within the standard limits. The application of intensive drying process conditions remarkably changes the surface color of the obtained material, while remarkably reducing the drying process duration.
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来源期刊
Bioresources
Bioresources 工程技术-材料科学:纸与木材
CiteScore
2.90
自引率
13.30%
发文量
397
审稿时长
2.3 months
期刊介绍: The purpose of BioResources is to promote scientific discourse and to foster scientific developments related to sustainable manufacture involving lignocellulosic or woody biomass resources, including wood and agricultural residues. BioResources will focus on advances in science and technology. Emphasis will be placed on bioproducts, bioenergy, papermaking technology, wood products, new manufacturing materials, composite structures, and chemicals derived from lignocellulosic biomass.
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