防腐藥劑濃度對柳杉防腐處理材品質之影響

本研究探討46年生紅色心材與黑色心材柳杉（Cryptomeria japonica），以4%、6%、8%與12% ACQ（Ammoniacal Copper Quaternary）藥液濃度與3%、5%與7%CuAz（Copper Azole）藥液濃度，經加壓注入之防腐處理材透過總吸收量、滲透度與有效成分吸收量評估不同濃度處理後之防腐處理材符合的危害等級，研究結果顯示依推估之防腐藥劑總吸收量，要達到可於戶外使用之K4條件之ACQ藥劑濃度應採用8%以上之溶液；要完全符合K3基準之CuAz藥劑濃度採用5%以上之溶液；要完全符合可戶外用之K4基準CuAz，建議要採用之溶液濃度為9%。CuAz對紅色心材柳杉的滲透性顯著較黑色心材高。透過製程能力指標可決定本研究製程產出符合預期防腐材品質的合格機率。依理論與推估防腐藥劑吸收量之關係，可預測生產不同等級柳杉防腐處理之需要的藥劑濃度。

關鍵字

銅烷基銨化合物；銅唑化合物；危害分級；柳杉；藥液濃度

並列摘要

This study investigated the 46-year-old Japanese cedar's (Cryptomeria japonica) red-colored heartwood and black-colored heartwood which were pressure impregnated with 4%, 6%, 8% and 12% ACQ (Ammoniacal Copper Quaternary) concentration solutions and 3%, 5%, and 7% CuAz (Copper Azole) concentration solutions, respectively. Through the total retention, penetration, and active ingredients of preservative in order to evaluate the hazard classes of the preservative treated wood. The experimental results showed that the ACQ solution concentration for preservative treated wood could conform K4 outdoor use class should be of 8% or more; the concentration of CuAz should be more than 5% for the K3 hazard class use. The recommended solution concentration of CuAz treated wood for K4 hazard class use should be of 9% or more. The permeability of CuAz to the Japanese cedar's red-colored heartwood is significantly higher than that of the black-colored heartwood. Through the process capability index, the qualified probability of expected preservative treated wood quality class could be determined. The required solution concentrations for producing expected preservative treated wood classes could be predicted from the relationship between theoretical and estimated total retentions.

並列關鍵字

ACQ ； CuAz ； Hazard class ； Japanese cedar ； Preservative solution concentration

國際替代計量

防腐藥劑濃度對柳杉防腐處理材品質之影響

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