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毛白杨(Populus tomentosa)与加杨(P.canadensis)都是速生树种,但材质较差,属于不抗腐的木材,如经浸注液浸注和热聚合处理成为塑合材后,便可提高其抗腐性。七十年代以来.扫描电镜已成为各学科领域中一种先进的研究工具,具有放大范围广、分辨率高、能直接观察到试样的立体三维图像,以及试样制备较为简便等显著优点。木材的细胞壁主要是由纤维素与木素组成,具有坚固性,在试样制备过程中,即使处在高度脱水和高度真空喷镀的条件下,也不容易萎缩变形,适合作扫描电镜的材料。因
Populus tomentosa and P. canadensis are both fast-growing species, but their material is poor and they are non-rotten wood. After immersion and thermopolymerization, they can be used as plastic materials Improve its corrosion resistance. Since the seventies, scanning electron microscopy has become an advanced research tool in all disciplines. It has the advantages of wide enlarging scope, high resolution, direct observation of the three-dimensional image of the specimen and simple sample preparation. Wood cell wall is mainly composed of cellulose and lignin, with robustness, in the sample preparation process, even in a high degree of dehydration and vacuum deposition conditions, it is not easy to shrink deformation, suitable for scanning electron microscopy materials . because