文献类型：期刊文献

英文题名：Combustion Behavior and Thermal Degradation Properties of Wood Impregnated with Intumescent Biomass Flame Retardants: Phytic Acid, Hydrolyzed Collagen, and Glycerol

作者：Li, Luming[1] Chen, Zhilin[1] Lu, Jinhan[1] Wei, Ming[2] Huang, Yuxiang[1] Jiang, Peng[1]

第一作者：Li, Luming

通信作者：Jiang, P[1]|[a000570cfea21705df7ed]姜鹏;

机构：[1]Chinese Acad Forestry, Res Inst Wood Ind, Beijing 100091, Peoples R China;[2]Shangdong Xingang Enterprise Grp Co, Linyi 276002, Shandong, Peoples R China

年份：2021

卷号：6

期号：5

起止页码：3921-3930

外文期刊名：ACS OMEGA

收录：;Scopus(收录号：2-s2.0-85100996224);WOS:【SCI-EXPANDED(收录号:WOS:000618860000049)】；

基金：The authors wish to thank the Key R&D Program of China (grant no. 2017YFD0601106) and the Key R&D Program of Shandong Province (grant no. 2019JZZY010305) for their financial contributions.

语种：英文

摘要：Wood is a natural renewable material with a porous structure widely used in construction, furniture, and interior decoration, yet its intrinsic flammability poses safety risks. Therefore, environmentally friendly flame retardants have received increasing attention. In this study, a water-soluble flame retardant, consisting of bio-resourced phytic acid (PA), hydrolyzed collagen (HC), and glycerol (GL), was used to improve the flame retardancy of wood ("PHG/wood") through full cell vacuum-pressure impregnation. Morphology and Fourier transform infrared analysis results show that the flame retardant impregnated the wood and adhered evenly to the wood vessels. A PA/HC/GL ratio of 3:1:1 (concentration of the flame retardant solution = 30%) maximized the limiting oxygen index (LOI, 41%) and weight gain (51.32%) for PHG-C30/wood. The flame retardant formed an expansive layer after heating, and the treated wood showed an improved combustion safety performance such that the fire performance index and residue of PHG-C30/wood were 75 and 126.8% higher compared with that of untreated wood, respectively. The peak and total heat release were also significantly reduced by 54.7 and 47.7%, respectively. The PHG/wood exhibited good carbon-forming performance and a high degree of graphitization after combustion. The dense carbon layer provides condensed phase protective action, and non-combustible volatile gases, such as H2O, CO2, and NH3, are released simultaneously to dilute the fuel load in the gas phase. Thus, PHG is shown to be an effective flame retardant for wood.