查詢結果分析
相關文獻
- 防腐處理壓力與時間對柳杉防腐劑吸收量與滲透量之影響
- CCA 型防腐劑用於接地木材之績效暨不同藥劑配方決定差別吸收量之檢討與建議
- Sorbic Anhydride:A Potential Food Preservative Its Synthesis, Characterization, and Antimicrobial Activity
- 氧氣指數評估耐燃處理材之效果
- 濕式底火爆壓量測與模擬計算
- 市售奶油、乾酪、人造奶油及沙拉醬中己二烯酸、脫水醋酸及苯甲酸之氣相層析快速定量法
- A Simple Method for the Simultaneous Determination of Various Preservatives in Liquid Foods
- 食品中防腐劑丙酸及其鹽類分析方法之改進
- 苯甲酸用於蜜李最低用量之研究
- 食品生物防腐劑--細菌素
頁籤選單縮合
題名 | 防腐處理壓力與時間對柳杉防腐劑吸收量與滲透量之影響 |
---|---|
作者姓名(中文) | 謝堂州; 尹華文; 王守範; | 書刊名 | 林業試驗所研究報告季刊 |
卷期 | 5:3 1990.09[民79.09] |
頁次 | 頁187-192 |
分類號 | 436.56 |
關鍵詞 | 吸收量; 防腐; 防腐劑; 柳杉; 時間; 滲透量; 壓力; |
語文 | 中文(Chinese) |
中文摘要 | 柳杉為本省電桿用材之重要樹種,施行防腐處理時,所使用壓力之大 小及施壓時間之長短,均直接影響防腐劑之吸收量及滲透量。鑑於本省各防腐工 廠已往防腐處理柳杉電桿效果不良,故特研擬該計畫。本研究旨在測定使用不同 壓力及施壓時間,防腐處理柳杉木材,比較其防腐劑之吸收量及滲透量,尤其著 重觀測其心材部分之滲透性,並尋求最適宜之處理方法,以供各防腐工廠參考應 用。本研究採用CCA型防腐劑實施加壓防腐處理,所用壓力分別為8kgf/cm^2, 11kgf/cm^2及14kgf/cm^2,施壓時間分別為3,4,4hrs。茲將所得結果列示如下: 1.防腐處理柳杉電桿木,其操作標準係採用壓力8kgf/cm^2,施壓時間5hrs ,或 壓力11kgf/cm^2,施壓時間3hrs,均可使防腐劑吸收量達到使用標準。 2.防腐處理柳杉木之心材部分,並無特殊困難之處,其防腐劑之吸收量及滲透量 均可隨壓力之加大及操作時間之延長而增加,使其幾乎可達到需要標準。 3.柳杉木之邊材部分對於防腐劑之滲入甚為容易。 4.一般有謂柳杉電桿木難以防腐處理,推測其原因或為乾燥不足,含水率過高之 故,如防腐處理前之木材,能乾燥至含水率達到纖維飽和點(約30% )以下時,其 防腐處理應無困難。 |
英文摘要 | Cryotomeria japonica, Cunninghamia lanceloata and Taiwania cryptomerioides are three major plantation tree species in Taiwan. They are considered to be excellent wood pole materials. Over the past years, however, power and telephone companies have shown little interest in using these forest resources. The lack of interest in wood poles are causing problems in marketing and utiliazation of our forest products. Treated wood pole is estimated to last up to 20 years under Taiwan's environment. A recent survey reported by Taiwan Power Co., however, indicated that their wood poles could only last 2-3 years. The causes are being investigated by Taiwan Forest Research Institute. The purposes of this experiment are as follows: 1.Determination of ther effect of treatment pressure on the penetration and retention of preservative in wood. 2.Investigation of the correlations between treatment time and penetration and retention of preservative in wood. 3.Evaluation of the treatability of Cryptomeria japonica heartwood. The results obtained are as follow: (1)To meet the requirement of Taiwan Power Co. (9.6 Kg/m^3 dry power of Boliden K-33 in wood), the treatment conditions for Cryptomeria japonica shall be 8 Kg/cm^2 pressure for 5 hrs or 11 Kg/cm^2 of pressure for 3 hrs. (2)Heartwood of Cryptomeria japonica is not difficult to teat. Retention and penetration of chemical in wood was found to increase in quantity with increasing pressure and time of treatment. (3)Sapwood of Cryptomeria japonica is easily treated. (4)Failure of teating Cryptomeria japonica in the past may be due to excessive moisture content of wood. |
本系統之摘要資訊系依該期刊論文摘要之資訊為主。