硅溶胶阻燃剂对木材改性的研究  

Study on the Modification of Wood by Silica Sol Fire Retardant

作　　者：赵壮[1] 马根华 于洪强[1] 张冷庆 ZHAO Zhuang;MA Genhua;YU Hongqiang;ZHANG Lengqing(Institute of Building Materials and Energy Testing,Jilin Research and Design Institute of Building Science,Changchun Jilin 130011,China)

机构地区：[1]吉林省建筑科学研究设计院建材检测与节能分院,吉林长春130011

出　　处：《北方建筑》2020年第4期43-46,共4页Northern Architecture

基　　金：吉林省科技发展计划项目(20170204018SF)。

摘　　要：本研究利用硅溶胶阻燃剂对木材进行浸渍处理,采用扫描电子显微镜对木材微观结构进行观测,未处理木材内孔洞数量较多,无填充物,经硅溶胶处理后,大部分孔洞中有固体柱状物质填充。分析硅溶胶浓度及浸渍处理工艺对改性木材性能的影响。研究结果表明,浸渍的压力和时间对木材浸渍效果有改善,可显著增加木材的载药量,同时降低吸湿率,从而提升改性处理效果。当硅溶胶阻燃剂浓度为30%时,经改性处理的木材阻燃性能为最佳。This study used silica sol flame retardant to impregnate wood,observation of wood microstructure using SEM,The untreated wood has a large number of holes and no fillers.After the silica sol treatment,most of the holes are filled with solid columnar materials.Analysis of the effect of silica sol concentration and impregnation treatment on the properties of modified wood.The results show that,pressure and time have an effect on wood inpregnation effect,can increase the drug loading of wood,while reducing the rate of moisture absorption,improve the effect of modification.When the concentration of silica sol flame retardant is 30%,has the best flame retardant properties.

关 键 词：木材阻燃 硅溶胶 燃烧性能 

分 类 号：TU531[建筑科学—建筑技术科学]