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| Preparation and Performance of the Carbonized and Non-combustible Coated Paper Containing Kaolin at High Temperature |
| Received:July 25, 2025 Revised:September 13, 2025 |
| DOI：10.11980/j.issn.0254-508X.2025.12.015 |
| Key Words:coated paper kaolin carbonization ring non-diffusion |
| Fund Project:黑龙江省重大科技成果转化项目（CG23020）。 |
| Author Name | Affiliation | Postcode | | WANG Zhiliang* | College of Chemistry, Chemical Engineering and Resource Utilization, Heilongjiang Key Lab of Molecular Design and Preparation of Flame Retarded Materials, Northeast Forestry University, Harbin, Heilongjiang Province, 150040 | 150040 | | ZHAO Xin | College of Chemistry, Chemical Engineering and Resource Utilization, Heilongjiang Key Lab of Molecular Design and Preparation of Flame Retarded Materials, Northeast Forestry University, Harbin, Heilongjiang Province, 150040 | 150040 | | DU Yezhuang | Mudanjiang Hengfeng Paper Co.,Ltd., Mudanjiang, Heilongjiang Province, 157013 | 157013 | | LIANG Dequan | Mudanjiang Hengfeng Paper Co.,Ltd., Mudanjiang, Heilongjiang Province, 157013 | 157013 | | XU Miaojun | College of Chemistry, Chemical Engineering and Resource Utilization, Heilongjiang Key Lab of Molecular Design and Preparation of Flame Retarded Materials, Northeast Forestry University, Harbin, Heilongjiang Province, 150040 | 150040 | | PAN Gaofeng* | Mudanjiang Hengfeng Paper Co.,Ltd., Mudanjiang, Heilongjiang Province, 157013 | 157013 |
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| Abstract:In this study， the soluble starch and sodium carboxymethyl cellulose with the mass ratio of 96∶4 was used as adhesives， and the kaolin was acted as pigments. The coating materials were prepared and then used for surface coating of paper. When the mass fraction of kaolin and adhesive was 83∶17， the solid content of coating was 35%， and the coating weight was 7.5 g/m²， the coated paper was rapidly carbonized after the heating device with 550 ℃ passed through the paper. The carbonization ring was not spreading， and the average diameter was 5.8 mm. At the same condition， the uncoated paper occurred smoldering， and the charring ring spread rapidly with the average pore diameter >65.0 mm. Thermal gravimetric-infrared analysis showed that the gaseous products were effectively suppressed during pyrolysis. The transition of oxygen and heat were effectively inhibited due to the spread of silicate flakes on paper surface during coating. Consequently， the paper was endowed excellent carbonization and non-diffusion performance at high temperature. |
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