4种防腐处理橡胶木及其炭化材的色差与耐腐性能研究  

Study on Color Difference and Decay Resistance Performance of Four Kinds of Preservative Treated Rubberwood and Its Carbonized Wood

作　　者：刘人源 曾珠亮[1] 李权 LIU Ren-yuan;ZENG Zhu-liang;LI Quan(Kaili University,Kaili 556011,Guizhou,P.R.China;Suqian University,Suqian 223800,Jiangsu,P.R.China)

机构地区：[1]凯里学院,贵州凯里556011 [2]宿迁学院,江苏宿迁223800

出　　处：《林产工业》2023年第8期7-11,24,共6页China Forest Products Industry

基　　金：贵州省教育厅青年科技人才项目(黔教合KY字[2022]075号,黔教合KY字[2020]177号);黔东南州科技计划项目(黔东南科合基础[2022]17号);贵州省科技厅“千”层次人才培养项目(黔千层人才[2021]201603)。

摘　　要：采伐后的橡胶木需及时防腐处理以防蓝变、发霉和腐朽,但不同防腐处理对橡胶木颜色及其耐腐性能的影响机制尚不明确。以橡胶木及其炭化试材为研究对象,对比分析了浸渍水玻璃和ACQ,涂饰桐油和醇酸清漆4种处理条件对试样表面颜色及耐腐性能的影响。结果表明:相同处理条件下,炭化橡胶木相比橡胶木的明度(L^(*))更低,腐朽后,4种处理橡胶木的表面L^(*)值增加,且红绿轴色品指数(a^(*))、黄蓝轴色品指数(b^(*))和色度值(C)均显著增大。其中,浸渍ACQ的橡胶木在腐朽后a^(*)、b^(*)和C值均大幅增加,呈深青褐色。涂饰桐油的炭化橡胶木总色差(ΔE)最大。相比于橡胶木,炭化橡胶木的耐腐性能更好。在这4种浸渍处理中,浸渍ACQ对橡胶木的保护效果最好,而涂饰醇酸清漆的保护作用有限。Post-harvest rubberwood often requires preservative treatment to prevent blue stain,mildew and decay.However,the effecting mechanisms of different preservative treatments on the color and decay resistance of rubberwood are still unclear.In this study,rubberwood and its carbonized specimens were taken as the research object.The differences in the surface color and decay resistance of the samples under the four different conditions were compared and analyzed,including immersion in sodium silicate,ACQ,coated with tung oil or alkyd.The results showed that the lightness(L^(*))of the carbonized rubberwood was lower than that of the rubberwood under the same treatment conditions.The L^(*) values of all treated rubberwood samples increased after decay,accompanied by the increase in the red-green axis color index(a^(*)),the yellow-blue axis color index(b^(*)),and the chromaticity value(C).Among them,the values of a^(*),b^(*),and C of rubberwood impregnated with ACQ showed the most significant increase,with the surface color of dark blue-brown.The total color difference(ΔE)of the carbonized rubberwood coated with tung oil was the largest.Compared to untreated rubberwood,the decay resistance of carbonized rubberwood was better.Among those four treatments,ACQ had the best protective performance on rubberwood,while the protective effect of alkyd varnish was limited.

关 键 词：橡胶树 木材腐朽菌 颜色 耐腐 扫描电镜 

分 类 号：TS65[轻工技术与工程]