哌嗪改性木质素/磷酸铝双重包覆红磷的制备与阻燃性能  

Preparation and Flame Retardancy of Piperazine Modified Lignin/Aluminum Phosphate Double-Coated Red Phosphorus

作　　者：钟柔潮 林修端 黄少淮 熊雷 靳艳巧[1] Rouchao Zhong;Xiuduan Lin;Shaohuai Huang;Lei Xiong;Yanqiao Jin(College of Materials Science and Engineering,Fuzhou University,Fuzhou 350108,China)

机构地区：[1]福州大学材料科学与工程学院

出　　处：《高分子材料科学与工程》2019年第12期143-148,154,共7页Polymer Materials Science & Engineering

基　　金：国家自然科学基金资助项目(51503041);福建省自然科学基金资助项目(2018J01752,2016J05118);福州大学贵重仪器设备开放测试基金(2018T004)

摘　　要：以哌嗪改性木质素(LP)和磷酸铝为囊材,制备了具有多层次阻燃性能的无卤微胶囊化红磷阻燃剂,并用于改善丙烯腈-丁二烯-苯乙烯(ABS)树脂的阻燃性能。利用透射电子显微镜、扫描电子显微镜、红外光谱和热重分析等测试手段对阻燃剂的形貌和结构进行了表征,研究了阻燃剂添加量对ABS阻燃性能的影响。结果表明,红磷被LP和磷酸铝严密包覆;添加25%阻燃剂的ABS复合材料燃烧后可形成致密、厚实的残炭层,阻燃级可达到UL94 V-0等级,极限氧指数达到26.1%。与未添加阻燃剂ABS树脂相比,热释放速率峰值降低了63.1%,总烟雾释放量降低了25.8%。The halogen-free microencapsulated red phosphorus flame retardant with multiple flame retardant properties was prepared by using piperazine-modified lignin(LP)and aluminum phosphate as capsule material.And then the flame retardant was added into acrylonitrile-butadiene-styrene(ABS)resin to improve its flame retardant property.The morphology and structure of the flame retardant were characterized by TEM,SEM,FT-IR and TGA.The effect of the flame retardant dosage on combustion properties of ABS was investigated.The results show that red phosphorus was actually coated completely by LP and aluminum phosphate.The ABS composite with 25%flame retardant forms a compact and thick char layer after combustion,and the flame retardant grade is UL94 V-0,the limiting oxygen index reaches 26.1%.Compared to ABS without flame retardant,the peak heat release rate of the ABS composite is reduced by 63%and the total smoke production is decreased by 25.8%.

关 键 词：木质素 微胶囊化红磷 丙烯腈-丁二烯-苯乙烯 阻燃剂 

分 类 号：O636.2[理学—高分子化学]