Abstract

竹材經砍伐後不但失去綠色上觀且極易受到昆蟲或黴菌危害,使用期限不長。本試驗將孟宗竹、巨竹、馬來麻竹以鎳鹽、銅鹽及鉻鹽保護劑處理,製得優異綠色外觀之竹青後,將試材置於室外及人工加速耐候試驗箱中進行天候劣化,並以色差計、顯微鏡、顯微霍氏紅外線光譜儀等分析比較竹青綠色堅牢度及竹材耐久性。試驗結果顯示;增加保力定K-33濃度有助於提升竹材綠色堅牢度及耐久性;竹材綠色堅牢度及耐久性以保力定K-33處理者最優,以硝酸鎳、硫酸銅處理效果不佳;混合藥劑處理中添加保力定K-33,可以改善竹材綠色監牢度及耐久性;顯微霍氏紅外線光譜分析中,以保力定K-33處理圖譜變化最少,以硫酸銅處理之圖譜變化與未處理材相類似,變化相當明顯。有關各種保護藥劑處理試材之理化性質變化與比較,在文中均詳細加以探討。

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