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以4年生新伐毛竹为试材,以褐腐菌棉腐卧孔菌为试菌,对壳聚糖铜配合物(CCC)、壳聚糖锌配合物(CZC)及相应的金属盐(氯化锌)和铜铬硼(CCB)、ACQ处理材的耐腐性能、力学性能及胶接性能进行研究。结果表明:1)CCC处理的竹材对棉腐卧孔菌的耐腐性能不及CCB和ACQ处理材;但是,随着CCC处理浓度的增加,处理材耐褐腐性能明显增加,当处理材中金属离子保持量达到5.141kg.m-3时,腐朽后质量损失低于6.1%。2)CZC处理毛竹试材的耐腐效果低于CCC、CCB和ACQ,略高于氯化锌处理材,当CZC中金属离子保持量高于5.091kg.m-3时,处理材的质量损失在26.4%～29.0%之间。3)同素材(未处理材)相比,经防腐剂处理后的竹材力学性能及胶接性能均有不同程度下降,尤其是CCB处理材。在所测指标中,抗弯弹性模量和抗弯强度下降最明显,横纹抗压强度和胶接强度除CCB外变化不大。
Using 4-year-old fresh cut bamboo as test material and brown rot fungi Dicotyledonophilus as test bacteria, chitosan copper complex (CCC), chitosan zinc complex (CZC) and corresponding metal salt Zinc) and copper chromium boron (CCB), ACQ treated material corrosion resistance, mechanical properties and adhesive properties were studied. The results showed that: 1) CCC-treated bamboo had less resistance to CCB and ACQ than CCB and ACQ; however, with the increase of CCC concentration, the browning resistance of the treated wood significantly increased, When the ionic retention reached 5.141kg.m-3, the mass loss after decay was less than 6.1%. 2) The corrosion resistance of CZC treated bamboo was lower than that of CCC, CCB and ACQ, slightly higher than that of zinc chloride treated wood. When the retention of metal ions in CZC was higher than 5.091kg.m-3, the mass loss of treated wood Between 26.4% ~ 29.0%. 3) Compared with the same material (untreated material), the mechanical properties and adhesive properties of bamboo treated with preservatives decreased to different extents, especially for CCB treated materials. In the measured index, the flexural modulus and flexural strength decreased most obviously, and the compressive strength and adhesive strength of transverse direction changed little except CCB.