Preparation of modified ammonium polyphosphate blended aqueous boron phenolic resin and its application to insulating paper

编号 020037603

推送时间 20230102

研究领域 林产化工 

年份 2022 

类型 期刊 

语种 英语

标题 Preparation of modified ammonium polyphosphate blended aqueous boron phenolic resin and its application to insulating paper

来源期刊 Journal of Polymer Research

期 第376期

发表时间 20221004

关键词 Ammonium polyphosphate;  Flame retardancy;  Hydrophobicity;  Blending;  Cellulose insulating paper; 

摘要 The support material for cellulose-insulating paper is usually phenolic resin, which can no longer meet the mechanical characteristics, flame-retardant performance, and heat resistance requirements of insulating paper as the market evolves. In this article, the modified ammonium polyphosphate (APP) particles with excellent flame retardant and hydrophobic properties were prepared by the sol-gel method, which was applied to cellulose paper by compounding them with aqueous boron phenolic resin (BPF). The performance of the insulating paper had been significantly improved by evaluating the various properties of the paper, its breakage resistance and stiffness retention rates were 60.1% similar to 77.5% and 39.9% similar to 50.4%, respectively. With conductivity and breakdown voltage of 8.76 x10(-14) similar to 1.01 x 10(-11) S/cm and 8.28 similar to 9.81 kW/mm, respectively. The introduction of Si elements on the surface of APP for surface coating improved the insulation performance of the insulating paper. According to the results of the cone calorimeter, the insulating paper fulfilled the UL-94 standard V-0 level with a maximum LOI value of 32.5%, which was a flame-retardant grade.

服务人员 尚玮姣

服务院士 宋湛谦

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