水合無機鹽添加竹粒片板之耐燃性探討

Performance of Fire-Resistance Bamboo Particleboard Manufactured by Addition of Hydrated Inorganic Salts

黃金城(Jin-Cherng Huang) ； 林翰謙(Han-Chien Lin)

《林產工業》 19卷2期 (2000/06) Pp. 255-263

https://doi.org/10.6561/FPI.2000.19(2).11

摘要

將孟宗竹日工後之廢料打成粒片，接合抑煙劑、酸觸媒及MUF膠合劑並分別對竹粒片絕乾重量添加5%、10%、15%及20%之棚酸鋅、氫氧化鎮等水合無機鹽耐燃劑，在壓力30 kgf/cm^2，溫度140°C及加壓10分鐘條件下壓製成耐燃竹粒片板，探討水合無機鹽與其添加量對粒片板之物理性質、耐燃性能及超音波傳播特性之影響。試驗結果發現，各配方耐燃劑添加量在15%以下者，粒片板之內聚強度、靜曲破壞強度及靜曲彈性係數均可通過CNS 2215所區分之100型粒片板標準。添加棚酸鋅／氫氧化鎂（50/50，wt/wt）所製粒片板其防焰性均可達到CNS 8736標準，但在CNS 6532表面燃燒試驗，則僅tc值一項未達耐燃三級標準值。又知，粒片板的超音波傳播速度及最大振幅受水合無機鹽種類及添加量所影響，而且其數值約為對照組之2-4倍，且與燃燒性質間相互影響程度極顯著，未來可繼續研究其應用於非破壞性評估竹粒片板之耐燃性之可行性。

關鍵字

水合無機鹽耐燃劑 ； 耐燃竹粒片板 ； 物理性質 ； 超音波

並列摘要

The expetimental specimens of fire-retardant bamboo particleboards were taken from moso bamboo (＂Phyllostachys pubescens Mazel exH. Ed Leh. var. pubescens＂) residue and then chipped to bamboo particle with MUF, smoke suppressant and acid catalysts, in the meantime adding 5, 10, 15 or 20% hydrated zinc borate or hydrated magnesium hydroxide or mixed each half to as hydrated inorganic salts fire-retardant respectively at 30 kgf/cm2. 140°C. for 10 min. This study attempted to investigate the influence of ireretardant performance, physical properties and ultrasonic wave transmission characteristics of fire-retardant bamboo particleboards. The experimental results showed that the IB, MOR or MOE of fire-retardant bamboo particleboards could meet the requirements as specified in CNS 2215 for the standard of type 100 of particleboard individually when the amount of inorganic salts addition was fewer than 15%. All of the fire-retardant bamboo particleboards when hydrated zinc borate and hydrated magnesium hydrate hydroxide are mixed each half (by weight) to as fire-retardant met the CNS 8736 requirements of fire-retardant performance, except tc value of CNS6532 surface flammability. The type and dosage of inorganic salts addition greatly affected the ultrasonic velocity and maximum amplitude of the fire-retardant treated bamboo particleboards, comprehensibly, the values were 2-4 times greater than those untreated ones. Besides the mutual influence between fire performance characteristics and ultrasonic wave transmission characteristics is obvious. Acousto-ultrasonic technique, one of the methods of non-destructive evaluations (NDE), is might be developed to evaluate the fire-retardant performance of bamboo particleboard in the near future.

並列關鍵字

Hydrated inorganic salt tire-retardants ； Fire-retardant bamboo particleboard ； Fire-retardant performance ； Physical properties ； Acousto-ultrasonic