南京林业大学学报(自然科学版) ›› 2005, Vol. 29 ›› Issue (01): 33-36.doi: 10.3969/j.jssn.1000-2006.2005.01.008

• 研究论文 • 上一篇    下一篇

常规热压高密度干法纤维板内部温度的变化

谢力生1,陈哲1,赵仁杰1,张齐生2*   

  1. 1. 中南林学院工业学院, 湖南 株洲 412006; 2. 南京林业大学木材工业学院, 江苏 南京 210037
  • 出版日期:2005-02-18 发布日期:2005-02-18

Heat-conduction of Dry-process High Density Fiberboard by Conventional Hot-pressing Methods

XIE Li-sheng1, CHEN Zhe1, ZHAO Ren-jie1, ZHANG Qi-sheng2*   

  1. 1. College of Industry Central South Forestry University, Zhuzhou 412006, China; 2. College of Wood Science and Technology Nanjing Forestry University, Nanjing 210037, China
  • Online:2005-02-18 Published:2005-02-18

摘要: <正>比较了激素促进大戟叶、茎及腋芽形成的愈伤组织,得出MS培养基+2.0mg/L6-BA+0.4mg/LNAA最有利于形成愈伤,腋芽是获得愈伤的最佳材料。经过多代转接,获得大戟悬浮细胞系,培养21天生物量达到最大,为10.82g/L。加入大戟内生菌(镰刀菌)的菌丝提取液,可以获得比对照高34.13%的细胞产量;比较组织培养细胞HPI,C指纹成分表明,悬浮培养细胞含有野生大戟药材的主要成分;加入内生菌提取物,其指纹组分含量及产量发生改变。

Abstract: By means of conventional hot-pressing, dry fiber was pressed to make into high density fiberboard. The temperature of its mat’ s central layer were measured and noted in the pressing process. Based on the data of experiments, the relations between the rising velocity of mat’ s central layer’ s temperature and moisture content of mats, thickness, density of panels, hot-pressing temperature were analyzed. The results shows: Before water in mats is vaporized, the higher the hot-pressing temperature is;or the thinner the panels is, or the lower the density is,the greater the growth speed of the central temperature is,while the effect of mat’s moisture content on it is very little;The higher the hot-pressing temperature i-s,or the thinner panels is,or the higher the density is, or the higher the mat’s moisture content, the higher the water’s vaporizing temperature is; The higher the hot-pressing temperature is, or the thinner panels is, or the lower the density or the less the moisture content of mats, the shorter the vaporizing time of the mat’s water is;The thicker panels is, or the lower the density is or the higher the mat’s moisture content, the lower the falling temperature is after water is vaporized, and hot-pressing temperature has no effects on it; After water is’ vaporized, the higher the hot-pressing temperature is, or the thinner the panels is or the lower the density is, or the higher the mat’s moisture content,the greater the growth speed of temperature is.

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