含Si和Zn丙烯酸酯防火涂层的制备及性能  

Performance and Preparation of Acrylate Fire Retardant Coating Containing Si and Zn

作　　者：李保君 张顺 张一达 杨磊 LI Baojun;ZHANG Shun;ZHANG Yida;YANG Lei(Skshu New Materials Research(Shanghai)Co.,Ltd.,Shanghai 201100,China;Fujian Key Laboratory of Architectural Coating,Skshu Paint Co.,Ltd.,Putian,Fujian 351100,China;Fujian Provincial Key Laboratory of Ecology-Toxicological Effects and Control for Emerging Contaminants/Key Laboratory of Ecological Environment and Information Atlas of Fujian Provincial University/College of Environmental and Biological Engineering,Putian,Fujian 351100,China)

机构地区：[1]三棵树(上海)新材料研究有限公司,上海201100 [2]福建省建筑涂料企业重点实验室,三棵树涂料股份有限公司,福建莆田351100 [3]福建省新型污染物生态毒理效应与控制重点实验室/生态环境及其信息图谱福建省高等学校重点实验室/莆田学院环境与生物工程学院,福建莆田351100

出　　处：《涂料工业》2025年第3期42-48,56,共8页Paint & Coatings Industry

基　　金：福建省技术创新重点攻关及产业化项目(2024G014);福建省自然科学基金(2022J011160);福建省科学技术协会福建省科技经济融合服务平台(FJKX-2024XRH08);莆田市科技计划项目(2023GJGZ001);福建省教育厅本科高校教育教学研究项目(FBJY20230211);大学生创新创业训练计划项目(202411498004)。

摘　　要：为了提高光固化丙烯酸酯涂层的防火性能,通过KH570与水反应合成了超支化含硅树脂(HBPSi),将HBPSi与丙烯酸羟乙酯-甲苯二异氰酸酯的半加成物(HEA-TDI)反应制备出有紫外光(UV)固化功能的超支化阻燃预聚物(SMASi),再把SMASi与金属化合物和环氧丙烯酸酯(EA)进行复配,经UV固化成涂层。利用傅立叶变换红外光谱仪表征了产物的结构,通过紫外-可见分光光度计测试了涂层的透光率,并采用极限氧指数仪、热重分析仪、垂直燃烧仪及锥形量热仪对涂层的防火性能进行分析。结果表明:当在ZnCl_(2)/EA体系中添加适量的SMASi,可提高涂层的透光率、残炭率及耐水性;当其添加量为10%时,成炭率、极限氧指数、垂直燃烧级别及热释放速率均达最佳,分别为50.0%、48、V-0和209 KW/m^(2),显著降低了涂层的热释放速率,有效改善了涂层的防火性能。制备出的涂层能满足透明膨胀防火涂层的使用要求,在木质文物、家具及古建筑等防火领域具有良好的应用前景。In order to improve the fire retardant properties of light-cured acrylate coatings,hyperbranched silicon-containing resin(HBPSi)was synthesized by the condensation reaction of KH-570 with water,and hyperbranched fire retardant prepolymer(SMASi)with ultraviolet(UV)curing function was prepared by the reaction of HBPSi and the half adduct(HEA-TDI)from hydroxyethyl acrylate and toluene diisocyanate,then the coatings were prepared by UV curing method based on SMASi,ZnCl_(2) and EA as composite raw material.The structure of the product was detected and analysized by Fourier transform infrared spectroscopy,and visible light transmittance of the coatings were determined by UV-Vis spectrophotometer,and its fire retardant and thermal stability property was characterized by limiting oxygen index tester,thermogravimetry,vertical burning tester,cone calorimetry.The results showed that the light transmittance,char yield and water resistance of the coating could be improved,when SMASi was added to the ZnCl_(2)/EA system.When the dosage of SMASi was 10%,the char yield,LOI,vertical burning level and heat release rate was the best respectively,which corresponded to 50.0%,48,V-0 and 209 KW/m^(2).It could significantly reduce the heat release rate of the coating,and effectively improve its fire retardant properties.The coating prepared in this experiment could meet the requirements of transparent intumescent fire retardant coating,and it had a good application prospect in the field of fire retardant of wooden cultural relics,furniture and ancient buildings.

关 键 词：LEWIS酸 超支化含硅丙烯酸酯 防火 催化成炭 透明涂层 

分 类 号：TQ637.6[化学工程—精细化工]