氧氣指數評估阻燃藥劑雙重處理紅柳桉單板之抑焰效應

本研究之目的旨在探討矽酸鈉與十三種無機鹽飽和溶液反應劑之阻燃藥劑雙重處理紅柳桉單板後，對試材藥劑重量增加率之變化。並以氧氣指數試驗法評估處理材之抑焰效應，以尋求較佳之藥劑組合。經阻燃藥劑雙重處理之試材可改善其抑焰效應且藥劑重量增加率及藥劑種類為影響試材抑焰效應之關鍵因子。第一液藥劑濃度為30-40%時，部份試材表面會出現結晶或粉狀藥劑沉積現象。第一液與十三種反應劑複合後，試材重量增加率以矽酸鈉－氯化鋅處理者最大（113.9%），以矽酸鈉－偏硼酸鎂處理者最小（4.2%）。個別藥劑處理之試材氧氣指數分別隨重量增加率增加而提升，且兩者間呈一次直線迴歸正相關之趨勢。又鄧肯分析結果顯示，試材經第一液與十三種反應劑處理後，以矽酸鈉－偏硼酸鎂（1.42（v/v,%）%^(-1)）處理者抑焰效應改善最佳，以矽酸鈉－氯化鈣0.08（v/v,%）%^(-1)）處理者最差。

關鍵字

氧氣指數；阻燃藥劑；紅柳桉單板；雙重處理；抑焰效應

並列摘要

The weight gains of the double treated red lauan veneer were examined after soaking in sodium silicate (SS) followed by thirteen saturated inorganic salts solution (reactant reagents). Oxygen index (OI) method was applied to evaluate the flame inhibition efficiency (FIE) on the treated specimens to screen out the better found combinations of tire retardants. The double treated specimens were proved possess better flame inhibition, chemicals weight gains, and type of chemicals were found to be the key factors that affected efficiency of specimens flame inhibition. Complex salts derived from the reaction of the double reagents were deposited on the specimen's surface when treated with 30 to 40% SS followed by concentration and the reactant reagents for part of specimens. As sodium silicate with thirteen saturated inorganic salts solution composite, the weight gains showed the SS-zinc chloride for the largest (113.9%) and the SS-magnesium meta-borate for the lowest (4.2%) of the treated specimens. The oxygen index of the treated specimens increased with increasing weight gains of chemicals for each chemical. The treated specimens were all improved the tire-retardant, the best efficiency of flame inhibition was shown the sodium silicate and magnesium meta-borate (1.42(v/v,%)%^(-1)) and the sodium silicate and calcium chloride (0.08(v/v,%)%^(-1)) was the poorest.

並列關鍵字

Oxygen index ； Fire retardant ； Red lauan veneer ； Double treatment ； Flame inhibition efficiency

國際替代計量

氧氣指數評估阻燃藥劑雙重處理紅柳桉單板之抑焰效應

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