期刊论文

Study on smoke suppression and toxicity reducing by metal-modifi ed 13x molecular sieves in wood fl ame retardant

中文

中南林业科技大学学报

1673-923X

2015

2

103-108

10.14067/j.cnki.1673-923x.2015.02.020

31200438:国家自然科学基金 31170521:国家自然科学基金 20124321120002:高等学校博士学科点专项科研基金 12B135:湖南省教育厅青年项目 C13x2012B325:湖南省研究生科研创新项目

本校为第一机构

抑烟、减毒是减少火灾中人员伤亡的重要途径。采用锥形量热法、热分析法和扫描电镜研究了铁和铜改性13x 分子筛和聚磷酸铵复合阻燃木材的燃烧、烟气释放和成炭特性。结果表明：铁、铜改性分子筛与聚磷酸铵复合处理木材的总热释放量（THR）与空白样相比分别降低了36.8%、39.8%，总烟释放量（TSP）降低了69.3%、72.8%，CO 平均产率（YCO）降低了40.2%、44.5%，均具有优异的阻燃、抑烟和减毒效果；热分析和电镜实验表明，APP 的催化脱水作用有利于炭层形成，铁、铜改性分子筛与聚磷酸铵的协同作用使炭层结构紧密。APP 对木材具有高效阻燃作用，但产生大量有毒气体，铁、铜改性分子筛与聚磷酸铵复合...

Smoke suppression and toxicity reducing are the important ways to reduce the fire casualties. By using cone calorimetry, thermal analysis and scanning electron microscopy methods, the burning, smoke release and carbon characteristics of iron and copper-modified 13x molecular sieves with ammonium polyphosphate (APP) flame retardant wood were studied. The results show that total heat release (THR) of iron, copper-modified zeolites-APP composites flame retardant wood were reduced by more 36.8% and 39.8% than the control samples, the total smoke release production (TSP) were reduced by 69.3% and 7...