Preparation and property of tanning sludge based biomass flame retardant coating protein for cotton fabric

被引：0
|
作者：
Gu H. [1 ]
Wang D. [1 ]
Zong Y. [2 ]
Fu S. [1 ]
机构：
[1] College of Textile Science and Engineering, Jiangnan University, Jiangsu, Wuxi
[2] Kunming Southern Water Company, Yunnan, Kunming
来源：
Huagong Jinzhan/Chemical Industry and Engineering Progress | 2023年 / 42卷 / 02期
关键词：
cotton fabric; flame retardant coating; LBL self-assembly; tanning sludge protein;
D O I：
10.16085/j.issn.1000-6613.2022-1351
中图分类号：
学科分类号：
摘要：
In order to explore the method of application field of of tannery sludge protein, the biomass flame retardant coating was constructed by layer-by-layer self-assembly on the surface of cotton fabric using tannery sludge protein phytic acid and chitosan as raw materials. When the coating number reached 15TL (three layers), it could be observed by SEM that the coating was evenly adsorbed on the surface of cotton fabric. The thermal decomposition temperature (T5%) of 15TL cotton fabric decreased, which was beneficial to the production of protective carbon layer and improved the thermal stability. Importantly, unfinished cotton fabrics burned quickly when exposed to flame, whereas 15TL cotton fabrics could not be ignited by flame and self-extinguish immediately after the fire left. Compared with unfinished cotton fabric, peak heat release rate (PHRR) and total heat release amount (THR) of 15TL cotton fabric decreased by 33.1% and 38.9%, respectively, showing excellent flame retardant performance and improving the fire safety. The gaseous and condensed analysis demonstrated that biomass flame retardant coating released non-flammable NH3 gas, inhibited the effusion pyrolysis products as flammable gas CO, C-H compounds, ethers and carbonyl compounds, and promoted the generation of high graphitized protective carbon layer on surface of cotton fabrics. © 2023 Chemical Industry Press. All rights reserved.
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页码：641 / 649
页数：8
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