农作物秸秆特性及其重组材性能

该文通过纤维离析、显微镜观察及化学成分测定研究了棉秆、烟秆、大豆秸秆及辣椒秆的原料特性，并利用脲醛胶压制了4种秸秆的重组材，结果表明：4种秸秆均由韧皮部、木质部和髓心组成，木质部是用于重组材生产的主要部分；4种秸秆的主要化学成分与木材相似，但4种秸秆的灰分、抽出物质量分数较高；利用脲醛胶可以压制秸秆重组材，但其工艺参数需要进一步探索。

Characteristics of crop stalks and performance of their scrimber

Characteristics of cotton stalks, tobacco stalks, soybean stalks and capsicum stalks were studied with methods of optical microscopy, fiber isolation and analysis of chemical components. Scrimber of four crop stalks with urea-formaldehyde resin were manufactured. The results showed that the four crop stalks were all consist of phloem, xylem and pith. The xylem was the main parts of utilization for scrimber production. But the contents of ash and extractive of four crop stalks were higher than those of woods, the main chemical components of four crop straw were similar to timber. It is attainable to manufacture scrimbers from four crop stalks with urea-formaldehyde resin, but the optimum technological parameters of producing these scrimbers should be further explored on a basis of characteristics of different crop stalks.