醇溶性保綠處理桂竹之藥劑流失性研究

竹子在台灣為一般常見被廣泛應用的木質材料，因此對於竹子材料的開發應用及性質改良實為竹材研究的重要課題之一。在過去竹青保綠研究中，已成功地開發出單階段處理之桂竹醇溶性鋼鹽保綠藥劑，為了進一步瞭解此類型桂竹保綠加工製品之特性及其適合應用發展的領域，本研究即探討此類型保綠藥劑之固著情形及流失特性。保綠處理之桂竹材所含銅離子的微量分析結果得知，甲醇溶劑將氯化銅中的銅離子滲入試材中的效果較乙醇溶劑為佳。再者，試材內銅離子含量會受保綠藥劑中銅離子之莫耳濃度影響。由桂竹保綠藥劑中銅離子的流失性試驗結果得知，2%氯化銅保綠藥劑處理後桂竹表面的銅離子固著效果不錯，經過32天流失性試驗後的藥劑流失率為26.6%。若將淋洗處理應用作為此類型保綠處理材之後處理，則更能降低保綠產品對於生態環境可能造成的負面影響。

關鍵字

藥劑保留性能；氯化銅；硝酸銅；竹青保綠藥劑；流失性；桂竹

並列摘要

Bamboo is one of the most widely used material in Taiwan, hence explorations of novel processing techniques and modifications of bamboo properties are essential to the extensive utilization of bamboo. In the previous study on green color protection of makino bamboo (Phyllostachys makinoi) culms, we have successfully developed an alkali-pretreatment-free process using alcohol-borne copper based reagents. To further understand the characteristics of treated bamboo culms, hence the objective of this study was to evaluate the leaching performance and fixation of alcohol-borne reagents on the treated makino bamboo. Copper ion contents in the treated bamboo epidermis analyzed revealed that the penetration of copper chloride into bamboo culms was greater in methanol than in ethanol. It also demonstrated that copper ions per mole concentration in the protector affected its penetration. Results obtained from the leaching tests with water indicated that the fixation of copper ions in the bamboo culms was good. Only 26.6% of copper ions in the makino bamboo culms were leached out in total after leaching tests for 32 days. Taking the advantage of these results, it appears that using the leaching process as a post-treatment could make treated bamboo culms become even environmentally friendly materials.

並列關鍵字

Chemical retention ； Copper chloride ； Copper nitrate ； Green color protection ； Leaching ； Makino bamboo

國際替代計量

醇溶性保綠處理桂竹之藥劑流失性研究

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