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Flame retardation of cellulose-rich fabrics via a simplified layer-by-layer assembly
作者:Jun-Chi Yang, Wang Liao?, Shi-Bi Deng, Zhi-Jie Cao, Yu-Zhong Wang?
關鍵字:Cotton fabric, Flame retardant, Coating, APP
論文來源:期刊
具體來源:Carbohydrate Polymers
發表時間:2017年
Due to the high cellulose content of cotton (88.0–96.5%), the flame retardation of cotton fabrics can be achieved via an approach for the flame retardation of cellulose. In this work, a facile water-based flame retardant coating was deposited on cotton fabrics by a ‘simplified’ layer-by-layer (LbL) assembly. The novel coating solution was based on a mild reaction between ammonium polyphosphate (APP) and branched polyethyleneimine (BPEI), and the reaction mechanism was studied. TGA results showed that the char residues of coated fabrics were remarkably increased. The fabric with only 5wt% coating showed self-extinguishing in the horizontal flame test, and the peak heat release rate (pHRR) in cone calorimeter test decreased by 51%. Furthermore, this coating overcame a general drawback of flame-retardant LbL assembly which was easily washed away. Therefore, the simplified LbL method provides a fast, low-cost, eco-friendly and wash-durable flame-retardant finishing for the cellulose-rich cotton fabrics.
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