环氧/聚磷酸铵/二氧化铈复合树脂的制备与阻燃性能研究  

Study on the Preparation and Flame Retardancy of Epoxy/Ammonium Polyphosphate/Cerium Oxide Composite Resin

作　　者：姚小平[1] 刘勋[1] 王艳领[1] YAO Xiao-ping;LIU Xun;WANG Yan-ling(Chongqing Industry and Trade Polytechnic,Chongqing 408000,China)

机构地区：[1]重庆工贸职业技术学院,重庆408000

出　　处：《塑料科技》2021年第10期41-45,共5页Plastics Science and Technology

基　　金：2018年重庆市教委科学技术研究计划项目(2018043)。

摘　　要：利用聚磷酸铵-聚多巴胺-二氧化铈(APP-PDA-CeO_(2))对环氧树脂(EP)阻燃改性,提升EP的阻燃性能,并解决APP与EP相容性差的问题。探究EP/APP-PDA-CeO_(2)复合材料的力学性能、阻燃性能,并分析阻燃机理。结果表明:APP-PDA-CeO_(2)颗粒在EP树脂体系中呈现良好的分散性与力学性能。与EP、EP/APP、EP/CeO_(2)和EP/APPCeO_(2)体系相比,EP/APP-PDA-CeO_(2)复合材料展现更好的阻燃性能。当APP-PDA-CeO_(2)含量为6%,EP/APP-PDACeO_(2)复合材料的阻燃性能最好,相比EP材料,EP/APP-PDA-CeO_(2)(6%)的TTI延长51 s,PHRR降低50.6%,THR降低35.7%,LOI值达到30.3%,UL-94为V-0级别,最大烟密度(MSD)降低至89.82,烟密度等级(SDR)降低至69.12%。The flame retardant modification of epoxy resin(EP) by ammonium polyphosphate-polydopamine-cerium dioxide(APP-PDA-CeO_(2)) was used to improve the flame retardant properties of EP and solve the problem of poor compatibility between APP and EP. The mechanical properties and flame retardant properties of EP/APP-PDA-CeO_(2)composites were investigated, and the flame retardant mechanism was analyzed. The results show that APP-PDA-CeO_(2)particles have good dispersion and mechanical properties in EP resin system. Compared with EP, EP/APP, EP/CeO_(2)and EP/APP-CeO_(2)systems, EP/APP-PDA-CeO_(2)composites show better flame retardant properties. When the content of APPPDA-CeO_(2)is 6%, flame retardant properties of EP/APP-PDA-CeO_(2)composites is the best. Compared with EP, the TTI of EP/APP-PDA-CeO_(2)(6%) is extended by 51 s, the PHRR is reduced by 50.6%, the THR is reduced by 35.7%, the LOI value is 30.3%, the UL-94 is V-0 grade, the maximum smoke density(MSD) is reduced to 89.82, and the smoke density grade(SDR) is reduced to 69.12%.

关 键 词：环氧树脂 二氧化铈 阻燃性能 力学性能 阻燃机理 

分 类 号：TQ323.5[化学工程—合成树脂塑料工业] TB332[一般工业技术—材料科学与工程]