文献类型：期刊文献

英文题名：Chemical, pyrolysis, combustion properties and mechanism analysis of wood treated with biomass-based carrageenan-collagen modified ammonium polyphosphate

作者：Liu, Bin[1] Liu, Penghui[1] Ma, Zhan[1] Chola, Musenge[1] Chen, Mo[1] Guo, Hongying[1] Li, Jie[1] Sun, Fangli[1] Lu, Jinhan[2] Jiang, Peng[3] Huan, Weiwei[1] Li, Luming[1]

第一作者：Liu, Bin

通信作者：Huan, WW[1];Li, LM[1]

机构：[1]Zhejiang A&F Univ, Coll Chem & Mat Engn, 666 Wusu St, Hangzhou 311300, Peoples R China;[2]China Acad Bldg Res, Beisanhuan East Rd, Beijing 100013, Peoples R China;[3]Chinese Acad Forestry, Res Inst Wood Ind, Xiangshan Rd, Beijing 100091, Peoples R China

年份：2024

卷号：46

外文期刊名：SURFACES AND INTERFACES

收录：;Scopus(收录号：2-s2.0-85186324399);WOS:【SCI-EXPANDED(收录号:WOS:001218612600001)】；

基金：This work was supported by Zhejiang Public Welfare Public Research Program (LGC22B010001) ; Natural Science Foundation of Zhejiang Province (No. LY23C160003) ; National Natural Science Foundation of China (32201238) and Zhejiang Provincial Science and Technology Innovation Program (New Young Talent Program) for College Students (No.2023R412031) .r Program (LGC22B010001) ; Natural Science Foundation of Zhejiang Province (No. LY23C160003) ; National Natural Science Foundation of China (32201238) and Zhejiang Provincial Science and Technology Innovation Program (New Young Talent Program) for College Students (No.2023R412031) .

语种：英文

外文关键词：Biomass-based; Carrageenan and collagen; Flame-retardant wood; Combustion properties; Mechanism

摘要：Biomass-based flame retardants are characterized by readily available raw materials and are environmentally friendly, making the design of green and efficient biomass-based flame retardants a critical direction in the development of flame-retardant technology. In this study, a novel biomass-based flame retardant (Acc) was developed using ammonium polyphosphate (APP) as a raw material in combination with the biomass materials carrageenan (CAR) and collagen (COL). Flame-retardant wood was prepared via ultrasonic impregnation. Via various analytical and testing methods, such as the Limiting Oxygen Index (LOI), thermogravimetric analysis, scanning electron microscopy, Raman spectroscopy, cone calorimetry, and thermogravimetric-infrared coupling, the combustion performance of biomass-based flame retardants on wood was investigated to elucidate the flameretardant mechanism. The results indicated that the flame retardant with a CAR:COL:APP ratio of 1:1:3 exhibited the best flame-retardant effect, with an LOI of 31.8 %. The peak heat release rate was reduced to 53.8 % compared with that of untreated wood, and both the peak smoke release rate and total smoke release were reduced by 63.2 % and 49.2 %, respectively, demonstrating a significant smoke-suppression effect. Analysis of the mechanism revealed that APP, COL and CAR generated non-combustible gases such as ammonia and gases containing P and S when exposed to fire. These gases dilute oxygen and eliminate center dot H and center dot HO radicals in the gas phase, thereby exerting flame-retardant effects. Acc promotes the formation of a dense crosslinked carbon layer containing N=C, N-C/P-N, N-H, and C-O-P. This carbon layer acts as a physical barrier, isolating oxygen (O2), blocking gas emissions, and slowing heat exchange. This study provides a new avenue for the development of green and sustainable flame retardant wood.