锥形量热法研究APP/5A分子筛对木材的阻燃抑烟作用  

Effects of the Molecular Sieve 5A and APP on the Flame Retardance and Smoke Suppression in Wood by Cone Calorimeter

作　　者：陈旬[1] 袁利萍[1] 胡云楚[1,2] 田梁材[2] 王洁[2] 夏燎原[1] 

机构地区：[1]中南林业科技大学材料与工程学院,湖南长沙410004 [2]中南林业科技大学理学院,湖南长沙410004

出　　处：《林产化学与工业》2014年第2期45-50,共6页Chemistry and Industry of Forest Products

基　　金：国家自然科学基金资助项目(31170521);湖南省研究生科研创新项目(CX2012B325);中南林业科技大学研究生科技创新基金项目(CX2012B05)

摘　　要：采用锥形量热法研究了5A分子筛与聚磷酸铵(APP)在木材燃烧过程中的阻燃作用和烟气吸附调控作用。结果表明:APP单独使用时总热释放量(THR)降低47.56%,但是平均CO产率增加185.71%;5A分子筛单独使用时阻燃效果远远不如APP,THR只降低了16.86%;5A分子筛与APP复合使用THR降低34.23%,总烟释放量(TSP)降低了76.07%,平均CO产率降低了68.33%。5A分子筛能将木材热解产生的以CO为代表的有毒气体催化转化为CO2,从而减少了毒气的产生和释放。5A分子筛与APP联用,在高效阻燃的同时减少烟雾毒气释放,降低了火灾危害。The effect of molecular sieve 5A and ammonium polyphosphate （ APP） on the flame retardance and smoking-gas absorption in wood during the combustion process was investigated by cone calorimeter. The results showed that when APP was used as sole flame retardant, the total heat release （THR） reduced by 47. 56% while mean yield of CO （mean-COY） increased by 185. 71 %. The application of molecular sieve 5A was found to have an inferior flame retardant efficiency. THR decreased by 16. 86 % through it. However, when 5A molecular sieve and APP was combined and used as flame retardant for wood, THR, total smoke production （TSP） and mean-COY reduced by 34. 23%, 76. 07% and 68. 33%, respectively. CO, a representative toxic, was converted into CO2 by the use of 5A molecular sieve as catalyst. Thus the generation and release of toxic gas reduced. In short, high efficiency of flame retardance and smoke suppression in wood can be achieved when the flame retardants of 5A molecular sieve and APP were coused together. Thus the casualties in the fire were reduced.

关 键 词：5A分子筛 木材阻燃 抑烟减毒 

分 类 号：TQ35[化学工程]