西南林业大学学报2017，Vol.37Issue(2)：197-202,6.DOI:10.11929/j.issn.2095-1914.2017.02.032
硼酸铵—磷酸氢二铵协效阻燃杨木单板的制备与表征研究
Preparation and Characterization of Ammonium Borate-Diammonium Phosphate Synergistic Flame Retardant Poplar Veneer
摘要
Abstract
The flammability and pyrolysis characteristics of ammonium borate trihydrate and diammonium hydrogen phosphate in poplar veneer were analyzed by using of the limiting oxygen index,horizontal and vertical burning tests,thermos-gravimetric analysis (TGA) and scanning electron microscope (SEM).The results showed that the flame retardancy of diammonium hydrogen phosphate was better than ammonium borate trihydrate.The obvious synergistic effects between diammonium hydrogen phosphate and ammonium borate trihydrate were found,the oxygen index and the remaining amount of carbon residue could approach to 61％ and 53.5％,respectively,using 20％ concentration treatment,it also exhibits superior flame retardancy at horizontal and vertical burning tests.Moreover,the onset decomposition temperature,peak decomposition temperature and activation energy of each stage were reduced,with the addition of the composite flame retardant,the SEM images indicating protective chars formed from the treated wood,terminating the transmission of heat and oxygen.关键词
杨木/阻燃/硼酸铵/磷酸氢二铵/热重分析/氧指数Key words
poplar/flame retardant/ammonium borate trihydrate/diammonium hydrogen phosphate/thermos-gravimetric analysis/oxygen index分类
农业科技引用本文复制引用
胡来勇,俞马宏..硼酸铵—磷酸氢二铵协效阻燃杨木单板的制备与表征研究[J].西南林业大学学报,2017,37(2):197-202,6.基金项目
国家自然科学基金资助项目(51408309)资助 （51408309）
工信部联装2012 (543)项目资助. （543）
