PBS/木纤维阻燃复合材料的燃烧性能研究  

Study on Combustion Characteristics of PBS/Wood Fiber Flame Retardant Composites

作　　者：刘鹏杰 孙一峰[1] 岳小鹏 张昕蕾[4] LIU Peng-jie;SUN Yi-feng;YUE Xiao-peng;ZAHNG Xin-lei(Guangdong Provincial Key Laboratory of Emergency Test for Dangerous Chemicals,Guangdong Institute of Analysis,Guangzhou 510070,China;Shaanxi Province Key Laboratory of Papermaking Technology and Specialty Paper,College of BioresourcesChemicals and Materials Engineering,Shaanxi University of Science and Technology,Xi an 710021,China;National Experimental Demonstration Center for Light Chemical Engineering(Shaanxi University of Scienceand Technology),Xi an 710021,China;School of Material Science & Engineering,Shaanxi University of Science and Technology,Xi an 710021,China)

机构地区：[1]广东省测试分析研究所广东省化学危害应急检测技术重点实验室,广东广州510070 [2]陕西科技大学轻工科学与工程学院陕西省造纸技术及特种纸品开发重点实验室,陕西西安710021 [3]轻化工程国家级实验教学示范中心(陕西科技大学),陕西西安710021 [4]陕西科技大学材料科学与工程学院,陕西西安710021

出　　处：《塑料工业》2019年第2期52-58,共7页China Plastics Industry

基　　金：广东省科学院实施创新驱动发展能力建设专项(2018GDASCX-0104)

摘　　要：以酯化淀粉(ES)作为木薯渣界面改性剂,并结合膨胀阻燃剂(IFR)和碱式硫酸镁晶须(MHSH)制备阻燃型聚丁二酸丁二醇酯(PBS)/木薯渣纤维复合材料,对复合材料的阻燃性能、燃烧性能和阻燃机理进行了研究。结果表明,当m(PBS)∶m(IFR)∶m(木薯渣)∶m(MHSH)=7∶2. 3∶0. 5∶0. 2时,阻燃型木塑复合材料的LOI为39. 6%,UL94达到了V-0等级。MHSH具有协效阻燃效果,MHSH作为协效阻燃剂能够降低木塑燃烧时的热释放速率、总烟释放量、一氧化碳和二氧化碳释放速率。阻燃型木塑复合材料燃烧时,在其外部形成了一层膨化的炭层和难燃气体(NH3)保护层,阻止了材料基体进一步燃烧,从而使阻燃复合材料具有更好阻燃性能。Taking esterified starch as modifier of the cassava residue interface,combined with intumescent flame retardant(IFR)and basic magnesium sulfate whisker(MHSH)to prepare flame retardant cassava fiber/poly(butylene succinate)(PBS)composites.The flame retardant,combustion properties and flame retardant mechanism of composites were investigated.The results show when the ratio of PBS,IFR,fiber and MHSH are 7∶2.3∶0.5∶0.2,the LOI value is 39.6%and UL-94 of composite could achieve V-0 level.The heat release rate,total smoke release,carbon monoxide and carbon dioxide release rate of wood plastic combustion could be reduced by MHSH as a synergistic flame retardant.In the process of burning,the wood fiber flame retardant composites could provide a layer of puffed carbon and a refractory gas shied(NH3)which could be formed on the outside of the composite to prevent the material from being burned.Thereby,the flame retardant composites have better flame retardant properties.

关 键 词：聚丁二酸丁二醇酯 木薯渣纤维 膨胀阻燃剂 碱式硫酸镁晶须 阻燃 燃烧性能 

分 类 号：TQ317.4[化学工程—高聚物工业]