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所谓熏蒸法木材防腐处理,就是用某些低沸点的化学药剂在常压下使它在木材中蒸发、扩散以达到防止木材腐朽的方法。这种方法在生产实践中显示出很大的优越性。例如美国俄勒冈州西部十条通讯线路的电杆木,在使用后的6-18年间,已有60％发生内腐。而内腐杆木经熏蒸法处理后,至少可延长使用寿命5年。由于熏蒸法可以就地进行处理,操作方便,并已在生产实践中证明是有效的,所以是一种很有发展前途的处理方法。 本试验的目的在于探索常见腐朽菌对几种常见熏蒸剂的耐药性和敏感性。为了使研究结果能有助于我国的实际应用,特选用了七种在我国常见的腐朽菌作为试验菌种。试验先是以麦芽浸提汁-琼酯作底物,来测定熏蒸剂对腐朽菌的毒性范围,由于实际上防腐的对象是木材,因此又以美国南方黄松(Pinus Palustris Niller)为底物进行试验,以测定底物改变后熏蒸剂对腐朽菌的毒杀作用有无变化、变化如何。根据这二项试验的结果,进行分析、讨论。现整理成文,供我国从事木材防腐工业的同志参考。
The so-called fumigation wood preservative treatment is to use some of the low-boiling chemicals at atmospheric pressure to make it in the wood evaporation, diffusion in order to achieve a method of preventing wood decay. This method shows great superiority in production practice. For example, in the United States, 10 western poles of Oregon electricity pole wood, within 6 to 18 years after use, 60% of internal rot occurred. The inner rotten wood fumigation treatment, at least extend the service life of 5 years. As the fumigation method can be processed on site, easy to operate and has proved to be effective in production practice, it is a very promising treatment. The purpose of this experiment is to explore common rot fungi several common fumigant resistance and sensitivity. In order to make the research results can contribute to the practical application in our country, we choose seven kinds of rotten bacteria commonly used in our country as the test bacteria. Test first malt extract juice - agar as a substrate to determine the toxicity of fumigant on the decayed bacteria range, since the object is actually anti-corrosion wood, and therefore the United States Ponderosa (Pinus Palustris Niller) as a substrate Test to determine changes in the substrate after the change of fumigant poisonous effect on the decayed bacteria, changes in how. According to the results of these two tests, analysis and discussion. Now collated and written for our country in the wood preservative industry comrades reference.