文献类型：期刊文献

中文题名：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

英文题名：Preparation and Properties of Transparent Amino Resin-Based Waterproof Fire-Retardant Coatings Modified with Caprolactam

作者：罗佳明[1] 张智彭[1] 吴玉章[1] 屈伟[1]

第一作者：罗佳明

机构：[1]中国林业科学研究院木材工业研究所,北京100091

年份：2025

卷号：39

期号：2

起止页码：38-46

中文期刊名：木材科学与技术

外文期刊名：Chinese Journal of Wood Science and Technology

收录：;北大核心:【北大核心2023】；

基金：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)。

语种：中文

中文关键词：防火涂料;水性氨基树脂;己内酰胺;耐水;透明

外文关键词：fire-retardant coating;water-based amino resin;caprolactam;waterproof;transparent

分类号：TQ637

摘要：氨基树脂基膨胀型防火涂料是透明防火涂料的主要类型,为了解决涂层耐水性限制其应用的问题,将己内酰胺引入到氨基树脂中,制备耐水性透明膨胀型防火涂料。通过傅立叶变换红外光谱(FTIR)考察己内酰胺对涂层化学结构的影响,并测试涂层的耐水性能和润湿性能,利用热重分析(TG)、扫描电子显微镜(SEM)、锥形量热仪(CONE)探究己内酰胺对涂层膨胀以及炭层形貌的影响机制。结果表明:己内酰胺通过酰胺化引入到涂层中,形成新的酰胺键,对涂层透明性无不良影响;与未添加己内酰胺的涂层相比,当己内酰胺添加量为2%~4%时,涂层接触角从42o提高到50o~58o,经24 h常温浸水后涂层保持平整无皱、无剥落现象,符合GB 12441—2018《饰面型防火涂料》对涂层耐水性的要求;同时,300 s内总热释放量THR_(300 s)降低14.1%~17.5%,引燃时间延长,涂层防火性能提高。
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(THR_(300 s))was reduced by 14.1%~17.5%;and the ignition time increased,demonstrating enhanced fire-retardant performance of the coating.