不同霉变实验的竹材腐朽分析研究

The Decaying Process of Bamboo under Different Mould Conditions

通过利用腐朽菌白腐及褐腐对未经霉变的竹材分别进行30、60和90 d的腐朽,并与经青霉霉变20、40、60 d后分别经腐朽菌腐朽90 d的竹材相比,两者在失重率及力学性能损失方面,霉变过的竹材比未经霉变的竹材都要大。同时对不同霉变时间的竹材经过腐朽菌分别腐朽30、60和90 d后,发现随着霉变时间的延长,竹材失重率及力学性能损失呈加重趋势,表现为腐朽菌对竹材结构破坏力度大。最后用t检验法分析霉变对竹材腐朽的影响关系,结果表现为霉变对竹材腐朽影响显著。又由测试结果数据分析得知,霉变可加速竹材腐朽,在前期表现为增速快,但在后期增速则相对缓慢。

Using the decay fungus white rot and brown rot to make the unmoldy bamboos become rotten for 30 d,60 d,and 90 d separately,and compare to the moldy bamboos that had been treated by Penicillium sp.for 20 d,40d,and 60d respectively and then became rotten by decay fungus for 90 d.The weight loss rate and mechanical performance degradation of the moldy bamboo were higher than that of the intact ones.The weight loss rate and mechanical performance degradation of the bamboos aggravated with extending moldy time,the decay fungus can destroy bamboo structure seriously.The result of a t-test showed that the mould decayed bamboos significantly.In addition,the rotten speed increased rapidly in the early stage,but slowly in the later period.