木材科学与技术2025，Vol.39Issue(2)：38-46,9.DOI:10.12326/j.2096-9694.2025006
基于己内酰胺改性氨基树脂的耐水透明防火涂层制备与性能
Preparation and Properties of Transparent Amino Resin-Based Waterproof Fire-Retardant Coatings Modified with Caprolactam
摘要
Abstract
Amino resin-based intumescent fire-retardant coating is a major type of transparent fire-retardant coatings.However,due to its inadequate water resistance,the coating layer has limited practical applications.Caprolactam was incorporated into amino resin to synthesize a water-resistant,transparent,intumescent fire-retardant coating.Fourier transform infrared spectroscopy(FTIR)was used to investigate the effect of caprolactam on the chemical structure of the coating layer.The water resistance and wetting properties of the coating were tested.Thermogravimetric analysis(TG),scanning electron microscopy(SEM),and the cone calorimeter(CONE)were employed to explore the mechanism by which caprolactam affects the intumescence of the coating layer and the morphology of the char layer.The results indicated that caprolactam was incorporated into the coating layer through amidation,forming new amide bonds without decreasing the transparency of the coating.Compared to coatings with no modification,when the mass ratio of caprolactam was 2%～4%,the contact angle of the coating layer increased from 42° to 50°～58°.After 24 hours of immersion in water at room temperature,the coating layer remained smooth and wrinkle-free,without peeling,meeting the water resistance requirements for coating layers specified in GB 12441-2018 Decorative Fire-Retardant Coatings.Additionally,the total heat release(THR)within 300 seconds(THR300 s)was reduced by 14.1%～17.5%;and the ignition time increased,demonstrating enhanced fire-retardant performance of the coating.关键词
防火涂料/水性氨基树脂/己内酰胺/耐水/透明Key words
fire-retardant coating/water-based amino resin/caprolactam/waterproof/transparent分类
化学工程引用本文复制引用
罗佳明,张智彭,吴玉章,屈伟..基于己内酰胺改性氨基树脂的耐水透明防火涂层制备与性能[J].木材科学与技术,2025,39(2):38-46,9.基金项目
中央级公益性科研院所基本科研业务费专项资金"耐候透明阻燃预警涂料制备及在古建中的应用"(CAFYBB2024MA022). （CAFYBB2024MA022）
