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題名 | 新型水溶性木材防腐藥劑對木材保存性與燃燒性之影響=Effects of New Waterborne Wood Preservatives on the Durability and Thermal Properties of Wood |
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作者 | 李鴻麟; 夏滄琪; 許富蘭; 林勝傑; Lee, Hong-lin; Shiah, Tsang-chyi; Hsu, Fu-lan; Lin, Shung-jei; |
期刊 | 臺灣林業科學 |
出版日期 | 20050600 |
卷期 | 20:2 2005.06[民94.06] |
頁次 | 頁139-156 |
分類號 | 474.2 |
語文 | chi |
關鍵詞 | 鉻化砷酸銅; 銅烷基銨化合物; 當耐力CY; 銅硼唑化合物; 耐腐朽性; 抗白蟻性; 焦炭含量; 燃燒性; Chromated copper arsenate; Ammoniacal copper quats; Tanalith CY; Ammoniacal copper azole; Fungal decay resistance; Termite resistance; Char yields; Thermal property; |
中文摘要 | 本研究目的在於評估水溶性木材防腐藥劑鉻化砷酸銅(chromated copper arsenate, CCA)、銅烷基銨化合物(ammoniacal copper quats,ACQ)、當耐力CY (tanalith CY, TCY)與銅硼唑化合物(ammoniacal copper azole, CuAz)等對於木材耐腐朽性、抗白蟻性與燃燒性之影響。試材係分別以1.25、2.5、5%濃度之CCA,2、4、6%濃度之ACQ、TCY或CuAz等以滿細胞加壓法處理,再依據ASTM D1413-76 (1999)、AWPA E1-97 (1999)標準方法及熱重量分析儀等,分別進行室內實木塊耐腐朽性、抗白蟻性與燃燒性等試驗。試驗結果顯示:三種新型水溶性木材防腐藥劑ACQ、TCY與CuAz處理材之耐腐朽性與抗白蟻性均極佳,其耐三種褐腐菌(Fomitopsis pinicola, Laetiporus sulphureus, Gloeophyllum trabeum)、耐白腐菌(Trametes versicolor)及抗白蟻性之功效與CCA處理材相當;以2%濃度之ACQ、TCY或CuAz處理試材,在經過四種腐朽菌接菌12周與白蟻飼養4周試驗後,其重量損失率均小於2%、白蟻死亡率均為100%,顯示其藥劑具有優異之木材防腐與抗白蟻效能;處理材經熱重量分析儀之燃燒性試驗顯示,各處理材之燃燒性質因通氣環境不同而異,在氮氣下之焦炭量隨處理藥劑濃度增加而增加,在空氣下之燃燒性則因處理藥劑種類而有所差異。 |
英文摘要 | The objective of this research was to evaluate the effects of waterborne preservative-treated wood on the performance of fungal decay resistance, termite resistance, and thermal properties. Preservatives, including chromated copper arsenate (CCA), ammoniacal copper quats (ACQ), tanalith CY (TCY), and ammoniacal copper azole (CuAz) were applied. Tested specimens were respectively impregnated with a preservative solution at 1.25, 2.5, and 5.0% w/w for CCA, and at 2, 4, and 6% w/w for ACQ, TCY, and CuAz using a full-cell process under pressure treatment. Fungal decay resistance, termite resistance, and the thermal properties of the treated wood were evaluated according to ASTM standard D1413-76 (1999), AWPA E1-97 (1999), and a thermogravimetric analysis. Results revealed that wood treated with ACQ, TCY, or CuAz was effective in resisting attack by 3 brown rot fungi (Fomitopsis pinicola, Laetiporus sulphureus, and Gloeophyllum trabeum), white rot fungus (Trametes versicolor), and termites (Coptotermes formosanus). Similar results were also found for CCA-treated wood. Weight losses of 2% ACQ-, TCY-, and CuAz-treated wood blocks were less than 2% after inoculation with brown rot and white rot fungi for 12 wk, indicating that such treatments resulted in good effectiveness against fungi deterioration. After 4 wk of feeding, the mortality of termites was 100% using 2% ACQ-, TCY-, and CuAz- treated blocks, indicating that such treatments resulted in good effectiveness against termite attack. Moreover, char yields of treated wood were significantly improved at higher concentrations of preservative treatment in a nitrogen atmosphere with the thermogravimetric analysis (TGA). However, differences in thermal properties were observed among all treatments in an air atmosphere with the TGA. |
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