Effects of Heat Treatment and Plant Oil Wax Infiltration on Color Homogeneity and Atmospheric Stability of Larch

Lin-zhi SHAO; Ming-jian LI; Jia-wei WANG; Xin-yu ZHAO; Chen-guang YAN; Jian-feng ZHAN

doi:10.12326/j.2096-9694.2021086

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Effects of Heat Treatment and Plant Oil Wax Infiltration on Color Homogeneity and Atmospheric Stability of Larch
1.Key Laboratory of Bio-based Material Science and Technology （Northeast Forestry University）， Ministry of Education，Harbin 150040，Heilongjiang，China
Vol. 36, Issue 3, Pages: 65-71(2022)
DOI： 10.12326/j.2096-9694.2021086

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邵霖治,李明剑,王嘉伟等.热处理和植物油蜡浸润对落叶松颜色均一性和耐候稳定性的影响[J].木材科学与技术,2022,36(03):65-71.

SHAO Lin-zhi,LI Ming-jian,WANG Jia-wei,et al.Effects of Heat Treatment and Plant Oil Wax Infiltration on Color Homogeneity and Atmospheric Stability of Larch[J].Chinese Journal of Wood Science and Technology,2022,36(03):65-71.
邵霖治,李明剑,王嘉伟等.热处理和植物油蜡浸润对落叶松颜色均一性和耐候稳定性的影响[J].木材科学与技术,2022,36(03):65-71. DOI： 10.12326/j.2096-9694.2021086.

SHAO Lin-zhi,LI Ming-jian,WANG Jia-wei,et al.Effects of Heat Treatment and Plant Oil Wax Infiltration on Color Homogeneity and Atmospheric Stability of Larch[J].Chinese Journal of Wood Science and Technology,2022,36(03):65-71. DOI： 10.12326/j.2096-9694.2021086.

摘要

为解决落叶松心边材颜色差异大及室外应用耐候稳定性差等问题，首先对兴安落叶松（,Larix gmelinii,）进行热处理，随后对热处理材进行200 ℃的植物油蜡浸润，通过自主设定的图像比色法对心、边材的颜色差异进行分析，并记录其在自然环境下表面开裂情况。结果表明：在相同的热处理条件下，经植物油蜡浸润处理后，落叶松心、边材明度指标,L,*、黄蓝指数,b,*明显降低。对心边材进行不同的热处理和植物油蜡浸润联合处理，可以减小落叶松心边材的颜色差异，提高落叶松心边材颜色的均一性，同时改善落叶松木材的耐候稳定性。

Abstract

In order to enhance color homogeneity and atmospheric stability of larch wood, the thermal treatment process was applied to the larch wood firstly. Then the thermal treated larch samples were infiltrated in the plant oil-wax at 200 ℃. The color difference between heartwood and sapwood was investigated by the self-set image colorimetry. It was found that under the same thermal treatment, the lightness index ,L,* and yellow-blue index ,b,* of heartwood and sapwood decreased visibly after the plant oil-wax infiltration. The color homogeneity of larch wood was improved under the different thermal treatments and plant oil-wax infiltration process. The larch wood showed better atmospheric stability after the thermal treatment and plant oil-wax infiltration process.

关键词

落叶松热处理植物油蜡浸润材色均一性耐候稳定性

Keywords

larchthermal treatmentplant oil-wax infiltrationcolor homogeneityatmospheric stability

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