不同处理方法对尾巨桉表面视觉性质及防腐性能的影响  

Effect of Different Treatments on the Visual Properties and Decay Resistance Performance of Eucalyptus urophylla×E.grandis

作　　者：岑晓倩 张亚庆 王亮 卢翠香[2] Cen Xiaoqian;Zhang Yaqing;Wang Liang;Lu Cuixiang(School of Architectural Engineering,Kaili University,Kaili Guizhou 556011,China;Key Laboratory of National Forestry and Grassland Administration on Central South Fast Growing Timber Culivation/Guangxi Provincial Key Laboratory of Superior Timber Trees Resource Cultivation,Guangxi Academy of Forestry,Nanning Guangxi 530002,China)

机构地区：[1]凯里学院建筑工程学院,贵州凯里556011 [2]广西林业科学研究院,国家林业和草原局中南速生材繁育实验室,广西优良用材林资源培育重点实验室,广西南宁530002

出　　处：《西南林业大学学报（自然科学）》2023年第6期149-155,共7页Journal of Southwest Forestry University：Natural Sciences

基　　金：凯里学院博士专项课题项目(BS202003)资助;黔东南州科技计划项目(黔东南科合J字[2022]63号)资助;贵州省教育厅2023年度普通本科高校科学研究项目(青年项目)(黔教技[2022]362号)资助;广西林业科技推广示范项目(桂林科研[2021]27号)资助。

摘　　要：选用桐油和硅酸钠浸渍或涂饰处理的尾巨桉为试样,分析试样浸渍或涂饰前后表面色差及耐腐性能变化。结果表明:尾巨桉试样经浸渍或涂饰处理后明度L*、红绿轴色品指数a*和黄蓝轴色品指数b*均显著降低;硅酸钠对尾巨桉颜色的影响大于桐油,经硅酸钠浸渍尾巨桉试样的总色差ΔE*最大,且硅酸钠浸渍处理的色差变化大于涂饰处理,而桐油涂饰处理大于浸渍处理;经浸渍或涂饰的尾巨桉试样被绵腐卧孔菌(PV)侵染后质量损失率明显下降,涂饰桐油、浸渍或涂饰硅酸钠的尾巨桉对PV菌的耐腐程度达到Ⅱ级,而浸渍桐油达到了Ⅰ级。浸渍处理增大了桐油含量,耐腐能力增强。处理的尾巨桉耐腐效果,桐油优于硅酸钠,浸渍优于涂饰。This paper selected tung oil and sodium silicate soaking or coating treatment of Eucalyptus urophyllax x E.grandis,and analyzed the surface color difference and decay resistance of the samples before and after treatment.The results showed that after soaking or coating,the lightness(L'),red-green color index(a')and yellow-blue color index(b')decreased.Sodium silicate had greater influence on the color of E.urophyllax×E.grandis than tung oil,the 4E of E.urophyllax×E.grandis impregnated with sodium silicate was the highest,while the color difference of sodium silicate impregnated was greater than that of sodium silicate coating,the effect of tung oil coating was greater than that of impregnated.After soaking or coating,the quality loss rate of E.urophyllax×E.grandis samples infected by Poria vaporaria decreased obviously.The rot resistance of Eucalyptus urophyllax×E.grandis coated with tung oil,impregnated or coated with sodium silicate reached grade II,and that of E.urophyllax×E.grandis impregnated with tung oil reached grade I.Impregnation treatment increased the content of tung oil and enhanced the corrosion resistance.The corrosion resistance of E.urophyllax x E.grandis,tung oil is better than sodium silicate,impregnation treatment is better than coating treatment.

关 键 词：尾巨桉 木材腐朽菌 色差 耐腐能力 桐油 硅酸钠 扫描电镜 

分 类 号：S782.33[农业科学—木材科学与技术]