三乙醇胺对木材阻燃剂的阻燃效果和吸湿性的影响

考察了三乙醇胺(TEM)对3种木材阻燃剂(F1、F2、DPB)处理试件的载药率、阻燃效果、吸湿性的影响。试验结果表明:随三乙醇胺加入量的增加,阻燃试件的载药率增加,氧指数增加,阻燃效果得到改善;三乙醇胺加入量大于3.5%时,处理液的黏度增加,载药率增加不明显;加入2.5%～3.5%的三乙醇胺时,处理试件的吸湿率最小。同时实验还显示了在3种木材阻燃剂中加入三乙醇胺后,只有F2与三乙醇胺有协同效应,其它两种阻燃剂协同效应不明显。

Effect of Triethanolamine on the Retardant Effectiveness and Hygroscopicity of Wood Fire-retardant

Effect of triethanolamine(TEM) on the drug load,retardant effectiveness and hygroscopicity of wood treated by three fire-retardants(F1,F2,DPB) were investigated.The results showed that drug loading and oxygen index increased with the increase of triethanolamine and the retardant effectiveness was improved at the same time.When triethanolamine is increased to 3.5 %,the viscosity of the solution rises and the increase of the drug loading becomes insignificant.Adding 2.5 % to 3.5% of triethanolamine gave the minimum moisture absorption rate for the samples.Otherwise the experiments showed that F2 fire-retar-dant had the synergistic effect with triethanolamine only and F1 and DPB had little synergistic effect with triethanolamine.