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| Investigation of Preparation and Performance of Flame-retardant Coated Paper |
| Received:January 26, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.06.013 |
| Key Words:flame-retardant paper surface coating catalytic carbonization efficiently flame retardant |
| Fund Project:黑龙江省重大科技成果转化项目（CG23020）。 |
| Author Name | Affiliation | Postcode | | ZHAO Xin* | Heilongjiang Key Lab of Molecular Design and Preparation of Flame Retarded Materials, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, Heilongjiang Procince, 150040 | 150040 | | WANG Zhiliang | Heilongjiang Key Lab of Molecular Design and Preparation of Flame Retarded Materials, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, Heilongjiang Procince, 150040 | 150040 | | XU Miaojun | Heilongjiang Key Lab of Molecular Design and Preparation of Flame Retarded Materials, College of Chemistry, Chemical Engineering and Resource Utilization, Northeast Forestry University, Harbin, Heilongjiang Procince, 150040 | 150040 | | DU Yezhuang | Mudanjiang Hengfeng Paper Co., Ltd., Mudanjiang, Heilongjiang Procince, 157013 | 157013 | | LIANG Dequan | Mudanjiang Hengfeng Paper Co., Ltd., Mudanjiang, Heilongjiang Procince, 157013 | 157013 | | PAN Gaofeng* | Mudanjiang Hengfeng Paper Co., Ltd., Mudanjiang, Heilongjiang Procince, 157013 | 157013 |
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| Abstract:In this study， the aqueous flame-retardant coating was prepared derived from the film-forming of soluble starch， and the flame-retardant additive of ammonium sulfate and ammonium dihydrogen phosphate. Then， the flame-retardant coating was coated on the surface of paper with a basis weight of 60 g/m2. When the mass ratio of starch， ammonium sulfate， and ammonium dihydrogen phosphate was 3∶1∶2， the content of flame-retardant additive of the coating was 5%， and the coating amount was 2.0 g/m²， the damage ratio of the flame-retardant coated paper in the vertical combustion test decreased from 100% of the raw paper to 35.9%， and the limiting oxygen index increased from 18.3% to 30.0%. The acids produced by the decomposition of flame-retardant additive exerted catalytic carbonization for cellulose and starch， and the non-flammable gas caused by the decomposition of nitrogen-containing groups diluted the combustibles and oxygen. Consequently， the flame-retardant coated paper was endowed excellent flame-retardant performance. Besides， the tear strength of the flame-retardant paper 4# was increased from 308 mN for raw paper to 339 mN， and the tensile strength was well retained. |
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