铜-季铵盐复配木材防腐剂的防腐性能

DECAY PROPERTIES OF COPPER-QUATERNARY AMMONIUM SALT COMPOUNDED WOOD PRESERVATIVES

在实验室内采用常规的真空 加压法浸注试件 ,土壤木块法进行防腐实验 ,检验了铜 季铵盐类防腐剂 (FFJ 1、FFJ 2和FFJ 3)对白腐采绒革盖菌 [Coriolusversicolor(L .exFr .)Quel.]和褐腐绵腐卧孔菌 [Poriaplacenta(Fr .)Cooke .]的防腐性能 ,结果表明 :在较低的保持量下 ,都有较好的防腐效果。与百菌清 (可湿性粉剂 )、五氯酚钠、三唑酮相比较 ,它们对白腐菌的防腐性能与百菌清相近 。

Three aqueous solutions of quaternary ammonium salt were mixed with copper salt to prepare wood preservatives (FFJ 1, FFJ 2 and FFJ 3).Treatments of lumber with these preservatives were carried out by conventional vacuum pressure impregnation.Soil block evaluations of the preservatives against brown rot fungi\[ Poria placenta (Fr.)Cooke\]and white rot fungi\[ Coriolus versicolor (L.ex Fr.)Quel\]indicate good decay resistance by FFJ 1,FFJ 2 and FFJ 3 against white rot at low retention, 0.1% copper(weight/weight).However,higher retention is needed for brown rot protection,1% copper(weight/weight).Also soil block decay tests were performed with chlorothalonil(CTL)?pentachlorophenol sodium(PCP Na)and tradimefon against white rot fungi.The effects of FFJ 1,FFJ 2 and FFJ 3 against white rot fungi are equivalent to those of CTL,but superior to those of PCP Na and tradimefon.