铜唑类防腐剂的抗菌性研究.docVIP

铜唑等17种防腐剂对毛竹的室内耐腐试验※ 覃道春 江泽慧，蒋明亮，刘君良 （国际竹藤网络中心，北京 100102） （中国林科院木材所，北京 100091) 摘要： 本研究以毛竹为主要试验材料，对铜唑等17种制剂在竹材上的抗菌性能进行评估。试验结果表明：1）毛竹对褐腐的天然耐腐性高于白腐；2）在4种铜唑防腐剂中，对P.v菌的抗菌性最好的是CuAz-1，最差的是CuAz-2；对P.p菌的抗菌性则相差不大；3）铜唑类防腐剂的毒性极限值均小于2kg/m3；4）丙环唑戊唑醇Test of Moso Bamboo Treated by 17 Wood Preservatives Qin Daochun (International Centre for Bamboo and Rattan, Beijing 100091, China) Jiang Zehui, Jiang Mingliang, Liu Junliang (Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing 100091, China) Abstract: In this paper, the laboratory anti-fungal test of Moso bamboo (Phyllostachys pubescens) treated by 17 formulations including 4 kinds of CuAz was conducted according to GB/T 13942.1-92 and LY/T 1283-1998 standard. The results shown: (1) The natural durability of Moso bamboo against brown-rot was better than against white-rot. (2) For four kinds of CuAz, CuAz-1 has the best resistance to Polyporus versicolor and CuAz-2 has the worst. The resistance to Poria placenta for all CuAz was almost same. (3) Toxic limit of all CuAz preservatives were less than 2kg/m3. (4) White-rot resistance of bamboo treated with CuAz containing propiconazole (i.e. PPZ) is higher than that of treated with CuAz containing tebuconazole (i.e. TEB). However, brown-rot resistance of bamboo treated with TEB type CuAz is higher than one treated with PPZ type CuAz. (5) There was no difference of rot resistance between ethanolamine-based and ammonia-based formulations. (6) Phosphate in ACQ formulations can reduce the anti-fungal effect. Keywords: Copper azoles, Preservatives, Anti-fungal test, Moso bamboo 铜唑类防腐剂是由二价铜离子与三唑化合物复配而成，它对人低毒、环保、高效，是目前正在推广应用的新一代水溶性木材防腐剂。其中铜戊唑醇P5-05（AWPA 2005）水溶性木材防腐剂标准，丙环唑ropiconazole，以下简称PPZ）列入AWPA P8-03有机溶剂型防腐剂标准。 国外关于铜唑防腐剂的耐久性研究，主要集中在几种商品化的CBA-A上，如TANALITH? E（原名TANALITH? 3485）和TANALITH? CuAz（Suzuki Kentaro，1998），所含三唑都是戊唑醇。Fox等（2000）比较了TANALITH? E（25:25:1，吸药量3.3～6.5kg/m3）TANALITH? E的性能与CCA相当。Creffield（1996）和Drysdale（2000）等人在澳大利亚、马来西亚和新西兰进行的辐射松（Pinus ra