古建木构件用阻燃底涂树脂的研发  

Study of a Flame-Retardant Primer Coating Resin Applied on Ancient Timber Structures

作　　者：屈伟[1] 吴沐廷 宋伟 吴玉章[1] 马星霞[1] QU Wei;WU Mu-ting;SONG Wei;WU Yu-zhang;MA Xing-xia(Research Institute of Wood Industry,Chinese Academy of Forestry,Beijing 100091,China)

机构地区：[1]中国林业科学研究院木材工业研究所,北京100091

出　　处：《木材工业》2020年第4期1-4,12,共5页China Wood Industry

基　　金：中央公益性客养院所基金重点项目“木材生物危害严重区域古建筑木构件保护技术”(CAFYBB2019ZB008);国家自然科学基金“以木质素为炭源的膨胀层品质的研究”(31570549)。

摘　　要：提高木结构古建筑自身的防火能力,对古建文物的传承具有重要意义。以云杉和辐射松木材为研究对象,探讨阻燃底涂树脂对木材引燃时间、燃烧放热的影响和作用机制。结果表明,阻燃树脂对延长引燃时间效果明显,最长可达9 min;木材燃烧初期的快速热释放得到有效抑制,热释放速率峰值显著降低,从而大大降低了对流传热引发火蔓延的风险。It is greatly significant to the inheritances of ancient building relics,by improving the fire resistance of timber structures.A flame-retardant primer coating resin was prepared,then applied on spruce and radiata pine samples at the laboratory.The mechanism of the wood ignition time and combustion behavior were explored.The results showed that the flame-retardant resin has a significant effect on extending the ignition time up to 9 minutes.The rapid heat release in the initial stage of wood combustion is effectively suppressed and the peak heat release rate is significantly reduced,and thereby the risk of spreading fire caused by heat convection and transfer is greatly reduced.

关 键 词：木结构古建筑 阻燃木材 阻燃树脂 引燃时间 燃烧性能 

分 类 号：S782.39[农业科学—木材科学与技术] TQ323.3[农业科学—林学]