炭化白松表面微观结构和成分分析  

The surface microstructure and elements analysis of white pine carbonization

作　　者：刘玲[1] 赵敏[1] 张世星[1] 罗斌 

机构地区：[1]中国人民武装警察部队学院,河北廊坊065000 [2]固原市消防支队,宁夏固原756000

出　　处：《消防科学与技术》2008年第2期83-85,共3页Fire Science and Technology

摘　　要：对模拟火灾不同受热条件下的炭化白松样品进行了扫描电镜(SEM)和X-射线能谱仪(EDS)分析。结果表明:受热后,炭化白松管胞纤维结构仍然存在,但是出现断裂和破碎;随着温度的升高,炭化白松管胞纤维间距加大;壁面变得光滑;具缘纹孔增大。受热温度相同的条件下,受热时间越长,表面炭化程度越大,管胞壁面越光滑。随着受热温度升高,炭化白松表面的含碳量变大,含氧量减小,含钾量变大。The white pine carbonization samples were analyzed by scanning electron microscope （SEM） and X-ray energy dispersive analysis （EDS） on different simulating fire conditions. The result showed that the main structure of fiber tracheids still exited, but had some fracture; as the heated temperature rised, the distance between fiber tracheids became longer, the surface of tracheids became smoother, and the bordered pit became bigger. When the samples were at the same heated temperature, the carbonization degree got severer and the surface of tracheids got smoother as the heated time extended. With the rising of heated temperature, the carbon content increased, the oxygen content decreased, and the potassium content increased.

关 键 词：炭化白松 微观形貌 扫描电镜 能谱分析 

分 类 号：X913[环境科学与工程—安全科学] TQ351.2[化学工程]